IPGP · Read the filing

ITEM 1A. RISK FACTORS

The factors described below are the principal risks that could materially adversely affect our operating results and financial condition. Other factors may exist that we do not consider significant based on information that is currently available. In addition, new risks may emerge at any time and we cannot predict those risks or estimate the extent to which they may affect us.

Risks Relating to Economic Conditions

Uncertainty and adverse changes in the general economic conditions of markets in which we participate negatively affect our business.

Current and future conditions in the economy have an inherent degree of uncertainty. As a result, it is difficult to estimate the level of growth or contraction for the economy as a whole. It is even more difficult to estimate growth or contraction in various parts, sectors and regions of the economy, including the materials processing, medical procedures and advanced applications in which we participate. Because all components of our budgeting and forecasting are dependent upon estimates of growth or contraction in the markets and applications we serve and demand for our products, the prevailing economic uncertainties render estimates of future income and expenditures very difficult to make. A significant portion of our sales are to customers in China, which accounted for 25%, 28% and 34% of net sales in 2024, 2023 and 2022, respectively. Slowing economic growth or recession, tariff-trade wars or other adverse economic developments or uncertainty in any of our key markets, including in China, may result in a decrease in our sales. In addition, the new presidential administration has articulated that it may impose substantial new or increased tariffs on foreign imports into the U.S. Adverse changes have occurred and may occur in the future as a result of declining or flat global or regional economic conditions, fluctuations in currency and commodity prices, wavering confidence, capital expenditure reductions, unemployment, declines in stock markets, contraction of credit availability, declines in real estate values, or other factors affecting economic conditions generally. These changes may negatively affect the sales of our products, increase exposure to losses from bad debts, increase the cost and decrease the availability of financing, increase the risk of loss on investments, or increase costs associated with manufacturing and distributing products. An economic downturn could have a material adverse effect on our business, financial condition and results of operations.

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Downturns in the markets we serve, particularly materials processing, could have a material adverse effect on our sales and profitability.

Our business depends substantially upon capital expenditures by manufacturers in the materials processing market, which includes general manufacturing, automotive, aerospace, other transportation, heavy industry, electronics and photovoltaic industries. Approximately 88% of our revenues in 2024 were from customers in the materials processing market. Although applications in this market are broad, sales for these applications are cyclical and have historically experienced sudden and severe downturns and periods of oversupply, resulting in significantly reduced demand for capital equipment, including the products that we manufacture and market. For the foreseeable future, our operations will continue to depend upon capital expenditures by customers in these industries or markets, which, in turn, depend upon the demand, as well as forecasted demand, for their products or services. A softening of demand for our customers' products and services, whether caused by a weakening of the U.S. or global economies or other factors, may result in decreased revenue or growth for our customers and may lead to decreased demand for our products, which would reduce our sales and margins. We may not be able to respond by decreasing our expenses quickly enough or sufficiently, due in part, to our fixed overhead structure related to our vertically integrated operations and our commitments to continuing investment in research and development and infrastructure for long term growth.

Risks Relating to Industry Dynamics and Competition

The markets for our products are highly competitive and currently subject to significant price and technological competition, and if we are unable to compete successfully, it could result in reduced sales, reduced gross margins or the loss of market share.

We operate in industries that are characterized by significant price and technological competition. We compete with makers of fiber lasers, solid-state lasers, direct diode lasers, high power CO2, YAG and disc lasers. These include public and private companies such as Coherent, Inc., Laserline GmbH, Lumentum Holdings Inc., Maxphotonics Co., Ltd., MKS Instruments, Inc., nLight, Inc., Trumpf GmbH + Co. KG, and Wuhan Raycus Fiber Laser Technologies Co. Ltd., as well as other smaller competitors. Several of these are larger and have substantially greater financial, managerial and technical resources, more extensive distribution and service networks, greater sales and marketing capacity, and larger installed customer bases than we do. Many of our fiber laser competitors are increasing the output powers, improving the quality of their fiber lasers and decreasing prices to compete with our products. Many of our competitors in Asia are beginning to export their fiber lasers and fiber laser-based systems to non-Asia markets, which may impact our pricing and sales in such markets. Our current or potential customers may decide to develop and produce products for their own use which are competitive to our products. Such vertical integration could reduce the market opportunity for our products. We also compete in the materials processing, advanced and medical applications markets with end users that produce their own solid-state and gas lasers as well as with manufacturers of non-laser methods and tools, such as traditional non-laser welding, cutting dies mechanical cutters and plasma cutters in the materials processing market and other energy-based devices in the medical market.

We may not be able to successfully differentiate our current and proposed products from our competitors' products and current or prospective customers may not consider our products to be superior to competitors' products. To maintain our competitive position, we believe that we will be required to continue a high level of investment in research and development, application development, manufacturing facilities and customer service and support, and to react to market pricing conditions. As a result of the foregoing factors, competitive pressures have resulted in price reductions, reduced margins, loss of sales and loss of market share.

The laser industry is experiencing declining average selling prices, which could cause our gross margins to decline and harm our operating results.

Our products are experiencing and may in the future continue to experience a significant decline in average selling prices ("ASPs") as a result of increased competition, pressure to reduce prices from significant customers and new product and technology introductions. Market participants, particularly in China, have reduced and may continue to reduce, prices of competing products to gain market share. If the ASPs of our products decline further and we are unable to increase our unit volumes, introduce new or enhanced products with higher margins or reduce manufacturing costs to offset anticipated decreases in the prices of our existing products, our operating results may be adversely affected. In addition, because of our significant fixed costs, we are limited in our ability to reduce total costs quickly in response to any revenue shortfalls. Because of these factors, we have experienced and we may experience in the future material adverse fluctuations in our operating results on a quarterly or annual basis if the ASPs of our products continue to decline.

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Our ability to maintain or increase sales depends upon our ability to develop new products, penetrate new applications and end markets for fiber lasers and maintain or increase our market share in existing applications.

Our level of sales will depend on our ability to generate sales of fiber lasers in new and developing markets including applications for lasers where they have not been used previously and in applications that use other lasers, such as CO2 and YAG lasers. Historically, a significant portion of our revenue growth has been derived from sales of fiber lasers primarily for applications where CO2 and YAG lasers historically have been used. We have made significant sales into the cutting, welding and marking and engraving applications, large applications where the use of other laser technologies was well established. As fiber lasers increase penetration in core materials processing applications and there is more competition in these core material processing applications, the development of new applications, end markets and products outside our core applications becomes more important to our ability to generate sales growth. In order to maintain or increase market demand for our products, we will need to devote substantial resources to:

•demonstrate the effectiveness of fiber lasers in new applications for materials processing, medical and advanced applications;

•successfully develop new product lines, such as the handheld welder, UV, visible and ultrafast fiber lasers with competitive features that extend our product line;

•increase our direct and indirect sales efforts;

•effectively meet growing competition and pricing pressures; and

•continue to reduce our manufacturing costs and enhance our competitive position.

Potential customers may have substantial investments and know-how related to their existing laser and non-laser technologies and processes. They may perceive risks relating to the reliability, quality, usefulness and profitability of integrating fiber lasers in their systems when compared to other laser or non-laser technologies available in the market or that they manufacture themselves. Despite fiber lasers having better performance and prices compared to other lasers or tools, OEM customers may be reluctant to switch incumbent suppliers or we may miss the design cycles of our customers. Many of our target markets, such as the automotive, machine tool and other manufacturing, communications and medical industries, have historically adopted new technologies slowly. These markets often require long test and qualification periods or lengthy government approval processes before adopting new technologies.

If we are unable to successfully implement our strategy to develop new applications and end markets for our products or develop new products, our revenues, operating results and financial condition could be adversely affected. In addition, any newly developed or enhanced products may not achieve market acceptance or may be rendered obsolete or less competitive by the introduction of new products by other companies.

We depend on our OEM customers and system integrators to incorporate our products into their systems.

Our sales depend in part on our ability to maintain existing and secure new OEM customers. Our revenues also depend in part upon the ability of our current and potential OEM customers and system integrators to incorporate our laser and amplifier products. The commercial success of these systems depends to a substantial degree on the efforts of these OEM customers and system integrators to develop and market products that incorporate our technologies. Relationships and experience with traditional laser makers, limited marketing resources, reluctance to invest in research and development and other factors affecting these OEM customers and third-party system integrators could have a substantial impact upon our financial results. If OEM customers or integrators are not able to adapt existing tools or develop new systems to take advantage of the features and benefits of fiber lasers or if they perceive us to be an actual or potential competitor, then the opportunities to increase our revenues and profitability may be severely limited or delayed. Furthermore, if our OEM customers or third-party system integrators experience financial or other difficulties that adversely affect their operations, our financial condition or results of operations may also be adversely affected.

Risks Relating to Our Operations

Our vertically integrated business results in high levels of fixed costs and inventory levels that may adversely impact our gross profits and our operating results in the event that demand for our products declines or we maintain excess inventory levels.

We have a high fixed cost base due to our vertically integrated business model. Approximately 75% of our approximately 4,740 employees as of December 31, 2024 were employed in our manufacturing operations. We may not adjust these fixed costs quickly enough or sufficiently to adapt to rapidly changing market conditions. Our gross profit, in absolute dollars and as

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a percentage of net sales, is impacted by our sales volume, the corresponding absorption of fixed manufacturing overhead expenses and manufacturing yields. In addition, because we are a vertically integrated manufacturer and design and manufacture our key specialty components, insufficient demand for our products may subject us to the risks of high inventory carrying costs and increased inventory obsolescence. If our capacity and production levels are not properly sized in relation to expected demand, we may need to record write-downs for excess or obsolete inventory. Because we are vertically integrated, the rate at which we turn inventory has historically been low when compared to our cost of sales. We do not expect this to change significantly in the future and believe that we will have to maintain a relatively high level of inventory compared to our cost of sales. As a result, we expect to have a significant amount of working capital invested in inventory. Changes in our level of inventory lead to an increase in cash generated from our operations when inventory is sold or a decrease in cash generated from our operations at times when the amount of inventory increases. Decreases in inventory may decrease our overhead absorption and decrease our gross margins and profitability.

Our manufacturing capacity and operations may not be appropriate for future levels of demand and may adversely affect our gross margins.

We have added and are continuing to add substantial manufacturing capacity at our facilities in the United States, Germany, Italy and Poland. A significant portion of our manufacturing facilities and production equipment, such as our semiconductor production and processing equipment, diode packaging equipment and diode burn-in stations, are special-purpose in nature and cannot be adapted easily to make other products. If the demand for fiber lasers or amplifiers does not increase or if our revenue decreases from current levels, we may have significant excess manufacturing capacity and under-absorption of our fixed costs, which could in turn adversely affect our gross margins and profitability.

To maintain our competitive position and to meet anticipated demand for our products, we invest significantly in the expansion of our manufacturing and operations throughout the world and may do so in the future. Recent expansions of capacity were required to offset the loss of capacity at our factories in Russia and Belarus due to sanctions. In connection with these projects, we may incur cost overruns, construction delays, project cancellations, labor difficulties or regulatory issues which could cause our capital expenditures to be higher than what we currently anticipate, possibly by a material amount, which would in turn adversely impact our operating results. Moreover, we may experience higher costs due to yield loss, production inefficiencies, equipment problems and lower margins until any operational issues associated with the opening of new manufacturing facilities are resolved.

Because we lack long-term purchase commitments from our customers, our sales can be difficult to predict, which could lead to excess or obsolete inventory and adversely affect our operating results.

We generally do not enter into long-term agreements with our customers obligating them to purchase our fiber lasers or amplifiers. Our business is characterized by short-term purchase orders and shipment schedules and, in some cases, orders may be canceled or delayed without significant penalty or any penalty. As a result, it is difficult to forecast our revenues and to determine the appropriate levels of inventory required to meet future demand. In addition, due to the absence of long-term volume purchase agreements, we forecast our revenues and plan our production and inventory levels based upon the demand forecasts of our OEM customers, end users and distributors, which are highly unpredictable and can fluctuate substantially. This could lead to increased inventory levels and increased carrying costs and risk of excess or obsolete inventory due to unanticipated reductions in purchases by our customers. In addition, provisions have been recorded as a result of changes in market prices of certain components, the value of those inventories that was realizable through finished product sales due to declines in certain end market demand and uncertainties related to the recoverability of the value of inventories due to technological and product changes, and excess quantities. If our OEM customers, end users or distributors fail to accurately forecast the demand for our products, fail to accurately forecast the timing of such demand, or are unable to consistently negotiate acceptable purchase order terms with customers, our results of operations may be adversely affected.

We depend upon internal production and on outside single or limited-source suppliers for many of our key components and raw materials, including cutting-edge optics and materials. Any interruption in the supply or availability of these key components and raw materials could adversely affect our results of operations.

We rely exclusively on our own production capabilities to manufacture certain of our key components, such as semiconductor diodes, specialty optical fibers and optical components. We do not have redundant production lines for some of our components, such as our diodes and some other components, which are made at a single manufacturing facility. These are not readily available from other sources at our current costs and may not be available at all. If our manufacturing activities were obstructed or hampered significantly, it could take a considerable length of time and capital investment, or it could increase our costs, to resume manufacturing or find alternative sources of supply. Many of the tools and equipment we use are custom-designed, and it could take a significant period of time to repair or replace them. Our primary manufacturing facilities are

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located in the United States and Germany, and we have added production in Italy and Poland. Despite our efforts to mitigate the impact of any flood, fire, natural disaster, political unrest, act of terrorism, war, trade sanctions, outbreak of disease or other similar event, our business could be adversely affected to the extent that we do not have redundant production capabilities if any of our major manufacturing facilities or equipment should become inoperable, inaccessible, damaged or destroyed.

Also, we purchase certain raw materials used to manufacture our products and other components, such as semiconductor wafer substrates, diode packages, modulators, micro-optics, bulk optics and high power beam delivery products, from single or limited-source suppliers. We typically purchase our components and materials through purchase orders or agreed-upon terms and conditions and we do not have guaranteed supply arrangements with many of these suppliers. These suppliers are relatively small private companies that may discontinue their operations at any time and may be particularly susceptible to prevailing economic conditions. Some of our suppliers are also our competitors. Some of our suppliers may not be able to meet demand from our because of global demand for their components. As a result, we experienced and may in the future experience longer lead times or delays in fulfillment of our orders. Furthermore, other than our current suppliers, there are a limited number of entities from whom we could obtain these supplies. We do not anticipate that we would be able to purchase these components or raw materials that we require in a short period of time or at the same cost from other sources in commercial quantities or that have our required performance specifications. Any interruption or delay in the supply of any of these components or materials, or the inability to obtain these components and materials from alternate sources at acceptable prices and within a reasonable amount of time, could adversely affect our business. If our suppliers face financial or other difficulties, if our suppliers do not maintain sufficient inventory on hand or if there are significant changes in demand for the components and materials we obtain from them, they could limit the availability of these components and materials to us, which in turn could adversely affect our business.

We must comply with and could be impacted by various export controls and trade and economic sanctions laws and regulations that could negatively affect our business and may change due to diplomatic and political considerations outside of our control.

A significant part of our business involves the export and import of components and products among many countries, including the U.S., Germany and China. Historically, we also exported and imported a limited number of components and products in Russia and Belarus with entities we operated in those regions, and our subsidiary in India imports a limited number of medical devices from our former Russian subsidiary pursuant to an agreement entered into in connection with the disposition of such subsidiary in 2024. The U.S. government and governments of other countries in which we do business have Trade Controls that impact our ability to export, re-export or transfer products, software and technology originating in those countries. Trade Controls may require that we obtain a license before we can export, re-export or transfer certain products, software or technology. The requirement to obtain a license could put us at a competitive disadvantage by restricting our ability to sell products to customers in certain countries or by giving rise to delays or expenses related to obtaining a license. We have experienced and, in the future, may experience delays in obtaining export licenses based on issues solely within the control of the applicable government agency. Licenses may also include conditions that limit the use, resale, transfer, re-export, modification, disassembly, or transfer of a product, software or technology after it is exported without first obtaining permission from the relevant government agency. Delays in obtaining or failure to obtain required export licenses may require us to defer shipments for substantial periods or cancel orders. Any of these circumstances could adversely affect our operations and, as a result, our financial results could suffer. Although we have implemented compliance measures designed to prevent transactions prohibited by current or future Trade Controls, we have previously identified, and may continue to identify, instances in which we exported products without obtaining the required export authorizations and/or submitting the required requests. As a result, we have submitted a limited number of voluntary self-disclosures regarding compliance with export control laws and regulations with the U.S. Department of Commerce’s Bureau of Industry and Security (“BIS”). BIS issued warning letters to the Company in response to the self-disclosures. Our failure to comply with these laws and regulations could result in costly government investigations, government sanctions, including substantial monetary penalties, civil or criminal penalties, denial of export privileges, debarment from government contracts, and a loss of revenues and reputational harm.

Our manufacturing facilities in the U.S. and Germany provide finished products to China, our largest market. Should the United States or the European Union implement targeted or broad-based Trade Controls, our production and/or deliveries as well as results of operations and/or financial condition could be affected.

In addition, Trade Controls and their implementation are fluid and may change due to diplomatic and political considerations outside of our control. While the Company has a trade compliance program, there is a risk that IPG may not be able to comply due to the number, complexity and fast-changing nature of sanctions. Trade Controls and other governmental responses to political escalations may require us to take certain actions, including increasing costs and abandoning operations or writing-down asset values, or respond to nationalization or expropriation of assets abroad, adversely affect prevailing market prices of our common stock, have a reputational impact, or otherwise have a material adverse impact on us, our business and financial results.

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We may experience lower than expected manufacturing yields, which would adversely affect our gross margins.

The manufacture of semiconductor diodes and the packaging of them is a highly complex process. Manufacturers often encounter difficulties in achieving acceptable product yields from diode and packaging operations. We have from time to time experienced lower than anticipated manufacturing yields for our diodes and packaged diodes. This occurs during the production of new designs and the installation and start-up of new process technologies and new equipment. If we do not achieve planned yields, our product costs could increase resulting in lower gross margins, and key component availability would decrease.

We are highly dependent on the significant experience and specialized expertise of our senior management and scientific staff. The unavailability or loss of one or more of these key employees or our failure to attract other highly skilled personnel necessary to compete successfully could harm our business and results of operations.

Our future success is substantially dependent on the continued service and performance of our executive officers. Although the board engages in executive succession planning, our inability to effectively and immediately transition knowledge or responsibilities to successors in the event of an unexpected absence or departure could harm our business and disrupt our operations. We also rely on our highly trained team of scientists, many of whom have numerous years of experience and specialized expertise in optical fibers, semiconductors and optical component technology, and other key engineering, sales, marketing, manufacturing and support personnel, any of whom may depart for a variety of reasons, which could harm our business. Competition for qualified personnel in our industry is intense, particularly for physicists, software engineers and other technical staff. If we fail to attract, integrate and retain the necessary personnel, it could delay the development or introduction of new products, negatively impact our ability to market, sell or support our products, and significantly harm our business.

Risks Relating to Intellectual Property, Litigation, Information Systems and Regulations

We are subject to litigation alleging that we infringe third-party intellectual property rights. Intellectual property claims could result in costly litigation and harm our business.

There has been significant litigation involving intellectual property rights in many technology-based industries, including our own. We face risks and uncertainties in connection with such litigation, including the risk that patents issued to others may harm our ability to do business; that there could be existing patents of which we are unaware that could be pertinent to our business; and that it is not possible for us to know whether there are patent applications pending that our products might infringe upon. Moreover, the frequency with which new patents are granted and the diversity of jurisdictions in which they are granted make it impractical and expensive for us to monitor all patents that may be relevant to our business.

From time to time, we have been notified of allegations and claims that we may be infringing patents or intellectual property rights owned by third parties. We have defended against several patent infringement claims in the past and we engage in patent office opposition proceedings internationally for patents owned by others. In December 2024, affiliates of Trumpf SE & Co. KG filed two different patent lawsuits in two different Unified Patent Courts located in Germany against IPG Laser GmbH & Co. KG, our German subsidiary, alleging infringement of two patents granted by the European Patent Office by our adjustable mode beam lasers.

There can be no assurance that we will be able to dispose of any claims or other allegations made or asserted against us without them having a material impact on our results of operations. Even if we ultimately are successful on the merits of any such litigation or re-examination, legal and administrative proceedings related to intellectual property are typically expensive and time-consuming, generate negative publicity and divert financial and managerial resources. Some litigants may have greater financial resources than we have and may be able to sustain the costs of complex intellectual property litigation more easily than we can.

If we do not prevail in any intellectual property litigation brought against us, it could affect our ability to sell our products and materially harm our business, financial condition and results of operations. These developments could adversely affect our ability to compete for customers and increase our revenues. Plaintiffs in intellectual property cases often seek, and sometimes obtain, injunctive relief. Intellectual property litigation commenced against us could force us to take actions that could be harmful to our business, including the following:

•stop selling our products or using the technology that contains the allegedly infringing intellectual property;

•pay actual monetary damages, royalties, lost profits or increased damages and the plaintiff's attorneys' fees; and

•attempt to license the relevant intellectual property which may not be available on reasonable terms.

In addition, intellectual property lawsuits can be brought by third parties against OEMs and end users that incorporate our products into their systems or processes. In some cases, we indemnify OEMs against third-party infringement claims relating to

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our products and we often make representations affirming, among other things, that our products do not infringe the intellectual property rights of others. As a result, we may incur liabilities in connection with lawsuits against our customers. Any such lawsuits, whether or not they have merit, could be time-consuming to defend, damage our reputation or result in substantial and unanticipated costs.

Our inability to protect our intellectual property and proprietary technologies could result in the unauthorized use of our technologies by third parties, hurt our competitive position and adversely affect our operating results.

We rely on patents, trade secret laws, contractual agreements, technical know-how and other unpatented proprietary information to protect our products, product development and manufacturing activities from unauthorized copying by third parties. Our patents do not cover all of our technologies, systems, products and product components and may not prevent third parties from unauthorized copying of our technologies, products and product components. We have significant international operations and are subject to foreign laws which differ in many respects from U.S. laws. Policing unauthorized use of our trade secret technologies throughout the world and proving misappropriation of our technologies are particularly difficult, especially due to the number of our employees and operations in numerous foreign countries. The steps that we take to acquire ownership of our employees' inventions and trade secrets in foreign countries may not have been effective under all such local laws, which could expose us to potential claims or the inability to protect intellectual property developed by our employees. Furthermore, any changes in, or unexpected interpretations of, the trade secret and other intellectual property laws in any country in which we operate may adversely affect our ability to enforce our trade secret and intellectual property positions. Costly and time-consuming litigation could be necessary to determine the scope of our confidential information and trade secret protection. However, there can be no assurance that confidentiality agreements we enter into with consultants, suppliers, employees and others will not be breached, that we will be able to effectively enforce them or that we will have adequate remedies for any breach.

Given our reliance on trade secret laws, others may independently develop similar or alternative technologies or duplicate our technologies and commercialize discoveries that we have made. Therefore, our intellectual property efforts may be insufficient to maintain our competitive advantage or to stop other parties from commercializing similar products or technologies. Many countries outside of the United States afford little or no protection to trade secrets and other intellectual property rights. Intellectual property litigation can be time-consuming and expensive, and there is no guarantee that we will have the resources to fully enforce our rights. If we are unable to prevent misappropriation or infringement of our intellectual property rights, or the independent development or design of similar technologies, our competitive position and operating results could suffer.

Our information systems are subject to cyber-attacks, interruptions and failures. If unauthorized access is obtained to our information systems, we may incur significant legal and financial exposure and liabilities.

Like many multinational corporations, we maintain several information technology systems, including software products licensed from third parties. These systems vary from country to country. Any system, network or internet failures, misuse by system users, the hacking into or disruption caused by the unauthorized access by third parties or loss of license rights could disrupt our ability to timely and accurately manufacture and ship products or to report our financial information in compliance with the timelines mandated by the SEC. Any such failure, misuse, hacking, disruptions or loss would likely cause a diversion of management's attention from the underlying business and could harm our operations. In addition, a significant failure of our various information technology systems could adversely affect our ability to complete an evaluation of our internal controls and attestation activities pursuant to Section 404 of the Sarbanes-Oxley Act of 2002 under the updated framework issued in 2013.

As part of our day-to-day business, we store our data and certain data about our customers, employees and service providers in our information technology system. While our system is designed with access security, if a third party gains unauthorized access to our data or technology, including information regarding our customers, employees and service providers, such security breach could expose us to a risk of loss of this information, loss of business, litigation and possible liability. Our security measures may be breached as a result of third-party action, including intentional misconduct by computer hackers, employee error, malfeasance or otherwise. Additionally, third parties may attempt to fraudulently induce employees or customers into disclosing sensitive information such as usernames, passwords or other information in order to gain access to our customers' data or our data, including our intellectual property and other confidential business information, employee information or our information technology systems. Because the techniques used to obtain unauthorized access, or to sabotage systems, change frequently and generally are not recognized until launched against a target, we may be unable to anticipate or detect these techniques or to implement adequate preventative measures. Any unauthorized access could negatively impact our customers' products, result in a loss of confidence by our customers, damage our reputation, disrupt our business, result in a misappropriation of our assets (including cash), lead to legal liability and negatively impact our future sales. Additionally, such actions could result in significant costs associated with loss of our intellectual property, impairment of our ability to conduct our

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operations, rebuilding our network and systems, prosecuting and defending litigation, responding to regulatory inquiries or actions, paying damages or taking other remedial steps. In addition, we may incur significant costs designed to prevent or mitigate the damage related to cybersecurity incidents. For instance, we may retain additional employees or consultants, implement new policies and procedures, and install information technology to detect and prevent identity theft, data breaches, or system disruptions. We would incur any such costs with the intent that proactively preventing a cybersecurity incident ultimately helps to mitigate potential cybersecurity liability. As previously disclosed, on September 14, 2020, the Company detected a ransomware attack impacting certain of our operational and information technology systems that we do not believe had a material impact on the Company's business, operations or financial condition.

The costs to address the foregoing security problems and security vulnerabilities before or after a cyber-incident could be significant. Our remediation efforts may not be successful and could result in interruptions, delays, a cessation of service, and a loss of existing or potential customers, impeding our sales, manufacturing, distribution, and other critical functions.

We may face particular privacy, data security and data protection risks due to laws and regulations regulating the protection or security of personal and other sensitive data.

We may face particular privacy, data security and data protection risks due to laws and regulations regulating the protection or security of personal and other sensitive data,including in particular several laws and regulations that have recently been enacted or adopted or are likely to be enacted or adopted in the future. For instance, in 2018, the European General Data Protection Regulation (“GDPR”) imposed additional obligations and risk upon our business and substantially increased the penalties to which we could be subject in the event of any non-compliance. GDPR requires companies to satisfy requirements regarding the handling of personal data (generally, of EU residents), including its use, protection and the rights of affected persons regarding their data. Failure to comply with GDPR requirements could result in penalties of up to 4% of worldwide revenue. In addition, several other jurisdictions around the world have recently enacted privacy laws or regulations similar to GDPR. For instance, in 2020, California enacted the California Consumer Privacy Act (“CCPA”), giving consumers many of the same rights as those available under GDPR. Several laws similar to the CCPA have been approved in the United States at the state level and more are being proposed at the federal and state levels. GDPR and other similar laws and regulations, as well as any associated inquiries or investigations or any other government actions, may be costly to comply with, result in negative publicity, increase our operating costs, require significant management time and attention, and subject us to remedies that may harm our business. We are evaluating these requirements and taking measures to ensure compliance with all applicable privacy and data protection-related laws and regulations. Because there is limited interpretation and enforcement of many of these laws and regulations, some measures initially might not satisfy standard or best practices that will be established in the coming years.

Changes in tax rates, tax liabilities or tax accounting rules could affect future results.

As a global company, we are subject to taxation in the United States and various other countries and jurisdictions. Significant judgment is required to determine worldwide tax liabilities, particularly related to intercompany pricing we apply to products shipped between various tax jurisdictions, commonly referred to as transfer pricing. Our future tax rates could be affected by changes in the composition of earnings in countries or states with differing tax rates, transfer pricing rules, changes in the valuation of our deferred tax assets and liabilities, or changes in the tax laws. In addition, we are subject to regular examination of our income tax returns by the Internal Revenue Service ("IRS") and other tax authorities. From time to time the United States, foreign and state governments make substantive changes to tax rules and the application of rules to companies, including various announcements from the United States government potentially impacting our ability to defer taxes on international earnings. We regularly assess the likelihood of favorable or unfavorable outcomes resulting from these examinations to determine the adequacy of our provision for income taxes. Although we believe our tax estimates are reasonable, there can be no assurance that any final determination will not be materially different than the treatment reflected in our historical income tax provisions and accruals, which could materially and adversely affect our operating results and financial condition.

If we or our third-party vendors fail to comply with FDA regulations or similar legal requirements in foreign jurisdictions relating to the manufacturing, labeling or marketing of our products or any component part, we may be subject to fines, injunctions and penalties, and our ability to commercially distribute and sell our products may be negatively impacted.

We now make fiber laser systems and accessories targeted at specific medical applications. In addition, we sell our commercial fiber and diode laser modules, subassemblies and systems to OEMs that incorporate them into their medical products. With respect to such products, some of our manufacturing facilities, and the manufacturing facilities of any of our third-party component manufacturers or critical suppliers, are required to comply with the FDA’s Quality System Regulation and those of other countries (“QSR”), which sets forth minimum standards for the procedures, execution and documentation of the design, testing, production, control, quality assurance, labeling, packaging, sterilization, storage, and shipping of the

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products we sell in the medical industry, and related regulations, including Medical Device Reporting (“MDR”) regulations regarding reporting of certain malfunctions and adverse events potentially associated with our products. The FDA and other regulatory agencies may evaluate our compliance with the QSR, MDR and other regulations, among other ways, through periodic announced or unannounced inspections which could disrupt our operations and interrupt our manufacturing and sales. If in conducting an inspection of our manufacturing facilities, or the manufacturing facilities of any of our third-party component manufacturers or critical suppliers, an investigator from the FDA or another regulatory agency observes conditions or practices believed to violate the QSR, the investigator may document their observations on a Form FDA 483 that is issued at the conclusion of the inspection. A manufacturer that receives an FDA 483 may respond in writing and explain any corrective actions taken in response to the inspectional observations. The FDA will typically review the facility’s written response and may re-inspect to determine the facility’s compliance with the QSR and other applicable regulatory requirements. Failure to take adequate and timely corrective actions to remedy objectionable conditions listed on an FDA 483 could result in the FDA taking administrative or enforcement actions. Among these may be the FDA’s issuance of a Warning Letter to a manufacturer, which informs it that the FDA considers the observed violations to be of “regulatory significance” that, if not corrected, could result in further enforcement action.

FDA enforcement actions, which include seizure, injunction, criminal prosecution, and civil penalties, could result in total or partial suspension of a facility’s production and/or distribution, product recalls, fines, suspension of the FDA’s review of product applications, and/or the FDA’s issuance of adverse publicity. Thus, an adverse inspection could force a shutdown of our manufacturing operations for products servicing the medical industry or a recall of such products. Adverse inspections could also delay FDA approval of our products for the medical industry.

Failure to maintain effective internal controls may cause a loss of investor confidence in the reliability of our financial statements or to cause us to delay filing our periodic reports with the SEC and adversely affect our stock price.

The SEC, as directed by Section 404 of the Sarbanes-Oxley Act of 2002, adopted rules requiring public companies to include a report of management on internal control over financial reporting in their annual reports on Form 10-K that contain an assessment by management of the effectiveness of our internal control over financial reporting. In addition, our independent registered public accounting firm must attest to and report on the effectiveness of our internal control over financial reporting. We have extensive and complex international manufacturing and sales and service locations which may make us more vulnerable to weaknesses in our internal controls. Although we test our internal control over financial reporting in order to ensure compliance with the Section 404 requirements, our failure to maintain adequate internal controls over financial reporting could result in an adverse reaction in the financial marketplace due to a loss of investor confidence in the reliability of our financial statements or a delay in our ability to timely file our periodic reports with the SEC, which ultimately could negatively impact our stock price.

Our products could contain defects, which may reduce sales of those products, harm market acceptance of our fiber laser and other products or result in claims against us.

The manufacture of our products involves highly complex and precise processes. Despite testing by us and our customers, errors have been found, and may be found in the future, in our products. These defects may cause us to incur significant warranty, support and repair costs, incur additional costs related to a recall, divert the attention of our engineering personnel from our product development efforts and harm our relationships with our customers. These problems could result in, among other things, loss of revenues or a delay in revenue recognition, loss of market share, harm to our reputation or a delay or loss of market acceptance of our fiber laser products. Additionally, a recall, particularly in our products used or incorporated in medical devices, could result in significant costs and lost sales and customers, enforcement actions and/or investigations by state and federal governments or other enforcement bodies, as well as negative publicity and damage to our reputation that could reduce future demand for our products. The development and sale of medical devices and component products involves an inherent risk of product liability claims. Defects, integration issues or other performance problems in our fiber laser and other products could also result in personal injury or financial or other damages to our customers, which in turn could damage market acceptance of our products and result in significant product liability claims being brought against us. A product liability claim brought against us, even if unsuccessful, could be time-consuming and costly to defend. If a product liability action were determined against us, it could result in significant damages, including punitive damages, and our consolidated financial position, results of operations or cash flows could be materially adversely affected.

We are subject to government regulations, including tariffs and duties that could restrict our international sales and negatively affect our business.

The United States, Germany, the European Union, China, Japan, South Korea and many other foreign governments impose tariffs and duties on the import of products, including some of those which we sell. In recent years, the U.S. instituted

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changes in trade policies that included the negotiation or termination of trade agreements, the imposition of higher tariffs on imports into the United States, including, in particular, on Russian and Chinese-made goods, economic sanctions on individuals, corporations or countries and other government regulations affecting trade between the United States and other countries where we conduct our business.

Policy changes and proposals could require time-consuming and expensive alterations to our business operations and may result in greater restrictions and economic uncertainty and disincentives on international trade, which could negatively impact our competitiveness in jurisdictions around the world as well as lead to an increase in costs in our supply chain. We are a multinational corporation, with manufacturing located both in the United States and internationally and with approximately 75% of our net sales arising from foreign customers. As such, we may be more susceptible to negative impacts from these tariffs or change in trade policies than other less internationally focused enterprises. In addition, new tariffs and other changes in U.S. trade policy could trigger retaliatory actions by affected countries, and certain foreign governments, including the Chinese government (which has imposed retaliatory tariffs on a range of U.S. goods including certain optical and electronic products and components), may impose trade sanctions on certain U.S. manufactured goods. Such changes by the United States and other countries have the potential to adversely impact U.S. and worldwide economic conditions, our industry and the global demand for our products, and as a result, could negatively affect our business, financial condition and results of operations.

We are subject to various environmental laws and regulations that could impose substantial costs upon us and may adversely affect our business, operating results and financial condition.

Some of our operations use substances regulated under various federal, state, local and international laws governing the environment, including those relating to the storage, use, discharge, disposal, product composition and labeling of, and human exposure to, hazardous and toxic materials. We could incur costs, fines and civil or criminal sanctions, third-party property damage or personal injury claims, or could be required to incur substantial investigation or remediation costs, if we were to violate or become liable under environmental laws. Compliance with current or future environmental laws and regulations could restrict our ability to expand our facilities or require us to acquire additional expensive equipment, modify our manufacturing processes, or incur other significant expenses in order to remain in compliance with such laws and regulations. There can be no assurance that violations of environmental laws or regulations will not occur in the future as a result of the lack of, or failure to obtain, permits, human error, accident, equipment failure or other causes.

Risks Relating to Our Common Stock

Certain trusts and a company created by the late founder of the Company collectively control over 35% of our voting power and have a significant influence on the outcome of director elections and other matters requiring stockholder approval, including a change in corporate control.

IP Fibre Devices (UK) Ltd. ("IPFD"), together with trusts created by the late founder of the Company, Dr. Valentin P. Gapontsev, beneficially own approximately 37% of our common stock. Dr. Scherbakov, our former CEO and current director, is the sole managing director of IPFD. Trustees of the trusts include an executive officer of the Company, a third-party corporate trustee, and Dr. Scherbakov. Dr. Scherbakov, as managing director of IPFD, and the other trustees have significant influence on the outcome of matters requiring stockholder approval, including election of our directors, stockholder proposals and approval of significant corporate transactions. IPFD and the trusts may vote their shares of our common stock in ways that other stockholders may consider would be adverse to the interests of the other stockholders. These significant ownership interests could delay, prevent or cause a change in control of the Company and might affect the market price of our common stock.

Future sales of our common stock by our existing shareholders could cause our stock price to decline.

Sales of a substantial number of shares of our common stock by our existing stockholders (including the trusts established by Dr. Gapontsev and IPFD) in the public market or the perception that these sales might occur, could depress the market price of our common stock and could impair our ability to raise capital through the sale of additional equity securities or other securities convertible into or exchangeable for equity securities, regardless of whether there is any relationship between such sales and the performance of our business.

Provisions in our charter documents and Delaware law, and our severance arrangements, could prevent or delay a change in control of our company, even if a change in control would be beneficial to our stockholders.

Provisions of our certificate of incorporation and by-laws, including certain provisions that will take effect when founder of the Company, the late Dr. Valentin P. Gapontsev, together with his affiliates and associates, ceases to beneficially own an

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aggregate of 25% or more of our outstanding voting securities, may discourage, delay or prevent a merger, acquisition or change of control, even if it would be beneficial to our stockholders. The existence of these provisions could also limit the price that investors might be willing to pay in the future for shares of our common stock. These provisions include:

•authorizing the issuance of "blank check" preferred stock;

•establishing a classified board and providing that directors thereon may only be removed for cause;

•providing that directors fill board vacancies;

•prohibiting stockholder action by written consent;

•limiting the ability of stockholders to call a special meeting of stockholders;

•establishing advance notice requirements for nominations for election to the board of directors and for proposing matters to be submitted to a stockholder vote;

•supermajority stockholder approval to change certificate of incorporation and by-laws and

•lack of cumulative voting for director elections.

Section 203 of the Delaware General Corporation Law, which will apply to the Company following such time as the late Dr. Gapontsev, together with his affiliates and associates, ceases to beneficially own 25% or more of the total voting power of our outstanding shares, may prohibit business combinations with stockholders owning 15% or more of our outstanding voting stock. The terms of our employment agreements and severance plan with executives include change-of-control severance provisions which provide for the payment of cash following a termination of employment following a change of control. These provisions may discourage, delay or prevent a merger or acquisition, make a merger or acquisition costlier for a potential acquirer, or make removal of incumbent directors or officers more difficult.

General Risk Factors

We have experienced, and expect to experience in the future, fluctuations in our quarterly operating results. These fluctuations may increase the volatility of our stock price and may be difficult to predict.

We have experienced, and expect to continue to experience, fluctuations in our quarterly operating results. We believe that fluctuations in quarterly results may cause the market price of our common stock to fluctuate, perhaps substantially. Factors which may have an influence on our operating results in a particular quarter include those below and others included in the Risk Factors:

•the increase, decrease, cancellation or rescheduling of significant customer orders;

•the timing of revenue recognition based on the installation or acceptance of certain products shipped to our customers;

•the timing of customer qualification of our products and commencement of volume sales of systems that include our products;

•the gain or loss of a key customer;

•product or customer mix;

•competitive pricing pressures and new market entrants;

•our ability to design, manufacture and introduce new products on a cost-effective and timely basis;

•our ability to manage our inventory levels and any provisions for excess or obsolete inventory;

•our ability to collect outstanding accounts receivable balances;

•incurring expenses to develop and improve application and support capabilities, the benefits of which may not be realized until future periods, if at all;

•incurring expenses related to impairment of values for goodwill, intangibles and other long-lived assets;

•different capital expenditure and budget cycles for our customers, which affect the timing of their spending;

•expenses associated with acquisition-related activities;

•regional epidemics or a global pandemic, such as COVID-19; and

•our ability to control expenses.

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These factors make it difficult for us to accurately predict our operating results. In addition, our ability to accurately predict our operating results is complicated by the fact that many of our products have long sales cycles, some lasting as long as twelve months or more. Once a sale is made, our delivery schedule typically ranges from four weeks to four months, and therefore our sales will often reflect orders shipped in the same quarter that they are received and will not enhance our ability to predict our results for future quarters. In addition, long sales cycles may cause us to incur significant expenses without offsetting revenues since customers typically expend significant effort in evaluating, testing and qualifying our products before making a decision to purchase them. Moreover, customers may cancel or reschedule shipments, and production difficulties could delay shipments. Accordingly, our results of operations are subject to significant fluctuations from quarter to quarter, and we may not be able to accurately predict when these fluctuations will occur.

Our inability to manage risks associated with our international customers and operations could adversely affect our business.

We have significant facilities in and our products are sold in numerous countries. A substantial majority of our revenues are derived from customers outside the United States. In addition, we have substantial tangible assets outside of the United States. We anticipate that foreign sales will continue to account for a significant portion of our revenues in the foreseeable future. Our operations and sales in these markets are subject to risks inherent in international business activities, including the following and others mentioned in the Risk Factors:

•fluctuations in the values of foreign currencies;

•changes, including recession, and other general economic uncertainties affecting the macroeconomic and local economic communities in which we and our customers operate or serve;

•longer accounts receivable collection periods and less developed credit assessment and collection procedures;

•compliance with domestic and foreign laws and regulations, unexpected changes in those laws and regulatory requirements, including uncertainties regarding taxes, tariffs, quotas, export controls, export licenses, trade sanctions and other trade barriers, and any corresponding retaliatory actions by affected countries, including China and Russia;

•certification requirements;

•less effective protection of intellectual property rights in some countries;

•potentially adverse tax consequences;

•different capital expenditure and budget cycles for our customers, which affect the timing of their spending;

•political, legal and economic instability, foreign conflicts, labor unrest and the impact of regional and global infectious illnesses in the countries in which we and our customers, suppliers, manufacturers and subcontractors are located;

•preference for locally produced products;

•difficulties and costs of staffing and managing international operations across different geographic areas and cultures;

•seasonal reductions in business activities;

•fluctuations in freight rates and transportation disruptions;

•investment restrictions or requirements;

•repatriation restrictions or requirements;

•export and import restrictions; and

•limitations on the ability of our employees to travel without restriction to certain countries in which we operate.

Political, economic and monetary instability and changes in governmental regulations or policies, including trade tariffs and protectionism, could adversely affect both our ability to effectively operate our foreign sales offices and the ability of our foreign suppliers to supply us with required materials or services. Any interruption or delay in the supply of our required components, products, materials or services, or our inability to obtain these components, materials, products or services from alternate sources at acceptable prices and within a reasonable amount of time, could impair our ability to meet scheduled product deliveries to our customers and could cause customers to cancel orders.

We are subject to risks of doing business in Belarus, which historically provided mechanical parts to our German subsidiary and former Russian subsidiary and which does not currently provide parts to our affiliates outside of Belarus. We are also subject to risks of doing business in China, as approximately 25% of our sales in 2024 were to Chinese customers. The results of our operations, business prospects and facilities in China and Belarus are subject to the economic and political

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environment there and global geopolitical conditions. The future economic direction of these emerging market countries remains largely dependent upon the effectiveness of economic, financial and monetary measures undertaken by the government, together with tax, legal, regulatory and political developments. Sanctions imposed by or on countries in which we have operations or do business has and could disrupt our supply of critical components, including among our manufacturing facilities in the U.S., Germany, Italy, Poland, and Belarus, and has caused us to shift all work occurring in Belarus to other countries. In addition, sanctions targeting the banking sector have and may impact the transfer of cash to and from countries in which we operate, including our ability to fund operations or repatriate surplus liquidity. At December 31, 2024, we had $4.7 million cash in Belarus. Such disruptions could negatively affect our ability to provide critical components to affiliates or produce finished goods for customers, which could increase our costs, require capital expenditures and harm our results of operations and financial condition. Further, Belarus adopted rules that impose conditions on sale of assets by U.S. and western companies that could decrease the value of assets, as well as limit payments to sellers. Our failure to manage the risks associated with our operations in China and Belarus and our other existing and potential future international business operations could have a material adverse effect upon our results of operations.

Foreign currency risk may negatively affect our net sales, cost of sales and operating margins and could result in exchange losses.

We conduct our business and incur costs in the local currency of most countries in which we operate. In 2024 our net sales outside the United States represented a substantial majority of our total sales. We incur currency transaction risk whenever one of our operating subsidiaries enters into either a purchase or a sales transaction using a different currency from the currency in which it operates or holds assets or liabilities in currencies different than their functional currency. Changes in exchange rates can also affect our results of operations when the value of sales and expenses of foreign subsidiaries are translated to U.S. dollars. We cannot accurately predict the impact of future exchange rate fluctuations on our results of operations. Further, given the volatility of exchange rates, we may not be able to effectively manage our currency risks, and any volatility in currency exchange rates may increase the price of our products in local currency to our foreign customers or increase the manufacturing cost of our products, which may have an adverse effect on our financial condition, cash flows and profitability. We incurred a foreign exchange loss of $5.5 million in 2024 and a gain of $1.4 million in 2023.

We pursue acquisitions and investments in new businesses, products, patents or technologies. These involve risks which could disrupt our business and may harm our financial results and condition.

We may make acquisitions of and investments in new businesses, products, patents and technologies and expand into new geographic areas, or we may acquire operations, products or technologies that expand our current capabilities. Although we have pursued relatively small acquisitions in the past, we may pursue larger transactions in the future. Acquisitions present a number of potential risks and challenges that could, if not met, disrupt our business operations, increase our operating costs, reduce consolidated margins, cause us to incur impairment charges and reduce the value of the acquired company, asset or technology to us. We may not be able to effectively integrate acquired businesses, business cultures, products, patents or technologies into our existing business and products, or retain key employees. As a result of the rapid pace of technological change in our industry, we may misjudge the long-term potential of an acquired business, product, patent or technology, or the acquisition may not be complementary to our existing business. Furthermore, potential acquisitions and investments, whether or not consummated, may divert our management's attention, require considerable cash outlays at the expense of our existing operations, incur unanticipated costs or liabilities, including the costs associated with improving the internal controls of the acquired company. In addition, to complete future acquisitions, we may issue equity securities, incur debt, assume contingent liabilities or have amortization expenses and write-downs of acquired assets, which could adversely affect our profitability and result in dilution to our existing and future stockholders.

We may incur impairments to goodwill or long-lived assets, which would negatively affect our results of operations.

We review our goodwill for impairment annually and other long-lived assets, including intangible assets identified in business combinations whenever events or changes in circumstances indicate that the carrying amount of these assets may not be recoverable. Negative industry or economic trends, including reduced estimates of future cash flows, disruptions to our business including those from government regulations, sanctions or tariffs, slower growth rates, lack of growth in our relevant business units or differences in the estimated product acceptance rates could lead to impairment charges against our long-lived assets, including goodwill and other intangible assets.

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results. Additionally, if our analysis indicates potential impairment to long-lived assets in one or more of our reporting units, we may be required to record additional charges to earnings in our financial statements, which could negatively affect our results of operations. In 2022, long-lived asset impairments related to our Russian operations were $79.0 million. In 2024, long-lived asset impairments related to our Belarusian operations were $26.6 million.

We are exposed to credit risk and fluctuations in the market values of our cash, cash equivalents and marketable securities.

Given the global nature of our business, we have both domestic and international investments. At December 31, 2024, 70% of our cash, cash equivalents and marketable securities were in the United States and 30% were outside the United States. Credit ratings and pricing of our investments can be negatively affected by liquidity, credit deterioration, prevailing interest rates, financial results, economic risk, political risk, sovereign risk or other factors. Also, our investments may be negatively affected by events that impact the banks or depositories that hold our investments. As a result, the value and liquidity of our cash, cash equivalents and marketable securities may fluctuate substantially. Therefore, although we have not realized any significant losses on our cash, cash equivalents and marketable securities, future fluctuations in their value could result in a significant realized loss.

Our ability to access financial markets to raise capital or finance a portion of our working capital requirements and support our liquidity needs may be adversely affected by factors beyond our control and could negatively impact our ability to finance our operations, meet certain obligations, implement our operating strategy or complete acquisitions.

We occasionally borrow under our existing credit facilities to fund operations, including working capital investments. Our major credit line in the United States expires in April 2025. Uncertainty or disruptions in financial markets may negatively impact our ability to access additional financing or to refinance our existing credit facilities or existing debt arrangements on favorable terms or at all, which could negatively affect our ability to fund current and future expansion as well as future acquisitions and development. These disruptions may include turmoil in the financial services industry, unprecedented volatility in the markets where our outstanding securities trade, changes in reference rates for interest such as the discontinuation of LIBOR in 2023 and general economic downturns in the areas where we do business. If we are unable to access funds at competitive rates, or if our short-term or long-term borrowing costs increase, our ability to finance our operations, meet our short-term obligations and implement our operating strategy could be adversely affected. We also may in the future be required to raise capital through public or private financing or other arrangements. Such financing may not be available on acceptable terms, or at all, and our failure to raise capital when needed could harm our business.

Our short-term investment portfolio and certain cash balances could experience a decline in market value or otherwise become illiquid, which could materially and adversely affect our financial results.

As of December 31, 2024, we had approximately $620 million of cash and cash equivalents and $310 million in short-term investments. See Note 3, "Fair Value Measurements" in the Notes to Consolidated Financial Statements in Part IV, Annual Report for further information about our cash equivalents and short-term investments. We currently do not use derivative financial instruments to adjust our investment portfolio risk or income profile. These investments, as well as any cash deposited in bank accounts, are subject to general credit, liquidity, market and interest rate risks, which may be exacerbated by unusual events, such as the U.S. debt ceiling crisis, which affected various sectors of the financial markets and led to global credit and liquidity issues. For example, in March 2023, certain US banks were closed and the Federal Deposit Insurance Corporation (FDIC) was appointed as receiver. While we were not directly impacted by these closures and did not have any deposits with these banks, there can be no assurance that our current or future banks will not face similar risks, and that we would be able to recover in full our deposits in the event of similar closures. We regularly maintain cash balances that are not insured or are in excess of the FDIC’s insurance limit. If the global financial markets continue to experience volatility or deteriorate, our investment portfolio and cash balances may be impacted and some or all of our investments may become illiquid or otherwise experience loss which could adversely impact our financial results and position.

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ITEM 1B. UNRESOLVED STAFF COMMENTS

None.

ITEM 1C. CYBERSECURITY

The Company understands the importance of preventing, assessing, identifying and managing material risks associated with cybersecurity threats.

Cyber Risk Management and Strategy

We have implemented a number of technical and organizational safeguards designed to manage our risks from cybersecurity threats and to protect against, detect and prepare to respond to cybersecurity incidents. These include employee training, incident response capability reviews and exercises, cybersecurity insurance and business continuity mechanisms. Additionally, we engage a third-party cybersecurity firm to assist with security features such as network and endpoint monitoring, cloud system monitoring and assessment of our incident response procedures.

Our incident response plan coordinates the activities that we and our third-party cybersecurity provider take to prepare, to respond and to recover from cybersecurity incidents. We have processes designed to triage, assess severity, investigate, escalate, contain and remediate an incident. We also have processes to comply with potentially applicable legal obligations and mitigate brand and reputational damage. As part of the above processes, we engage with consultants to review our cybersecurity program to help identify areas for continued focus, improvement, and compliance.

We have adopted cybersecurity control principles based on the National Institute of Standards and Technology Cybersecurity Framework (NIST), the Center for Internet Security (CIS) and ISO 27001. Further, our cybersecurity controls are designed to comply with applicable laws concerning protection of private information, including the EU General Data Protection Regulation (GDPR), Brazil’s Lei General de Proteção de Dados Pessoais (LGPD) and the California Consumer Privacy Act of 2018 (CCPA).

Our processes include assessing cybersecurity risks associated with our use of third-party service providers in the normal course of business, including those in our supply chain or who have access to our customer and employee data or our systems. Additionally, we assess cybersecurity considerations in the selection and oversight of our third-party service providers, including due diligence on the third parties that have access to our systems and facilities that house systems and data.

Governance Related to Cybersecurity Risks

The Company’s Global Director, Information Security (Security Director) directs the Company’s cybersecurity team. He reports to the Company’s Global Director of Information Technologies (IT Director), who reports to the Chief Executive Officer of the Company. The Security Director is responsible for assessing and managing the Company’s cyber risk management program, informing senior management, as appropriate, regarding the prevention, detection, mitigation and remediation of cybersecurity incidents and supervising such efforts generally by the cybersecurity team. Our Security Director is a Certified Information Systems Security Professional (CISSP) and has over 20 years of experience in cybersecurity in a broad range of industries. Our IT Director has a master’s degree in information systems and has prior experience managing global security efforts. Our Security Director manages a team of cybersecurity professionals with relevant experience and expertise, including in cybersecurity threat assessments and detection, mitigation technologies, cybersecurity training, incident response, cyber forensics, insider threats and regulatory compliance.

In addition, the Company’s IT Steering Committee (ITSC) considers, among other IT matters, risks relating to cybersecurity and applicable mitigation plans to address such risks. The ITSC is comprised of certain members of the Company’s senior management. The IT Director and Security Director attend each ITSC meeting. The ITSC generally meets quarterly during the year with the IT Director and Security Director to review risk mitigation activities as well as updated status of global security operations and metrics, including the prevention, detection, mitigation and remediation of cyber incidents. The IT Director, Security Director and ITSC monitor the prevention, mitigation, detection and remediation of cybersecurity incidents through their management of, and participation in the cybersecurity risk management and strategy processes, including the operation of the Company’s incident response plan. The Company has an established process led by our Security Director governing our assessment, response and notifications internally and externally upon the occurrence of a cybersecurity incident.

Our Board of Directors (the "Board") is responsible for overseeing our enterprise risk management activities in general, and each of our Board committees assists the Board in the role of risk oversight. The full Board receives an update on the Company’s risks, risk management process and the risk trends related to cybersecurity at least annually, which includes a

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review of key performance indicators, recent threats and the Company’s management of such threats. The Audit Committee specifically assists the Board in its oversight of risks related to cybersecurity. The Security Director and IT Director brief the Audit Committee on information security and cybersecurity annually and as necessary in response to certain incidents.

Although risks from cybersecurity incidents and threats have to date not materially impacted us, our business strategy, results of operations or financial condition, we have from time to time and will continue to experience threats to and security incidents related to our and our third party vendors’ data and systems. For more information, please see “Item 1A, Risk Factors.”

ITEM 2. PROPERTIES

Our significant facilities at December 31, 2024 include the following:

Minsk, Belarus Owned 410,900 Manufacturing

Davenport, Iowa Owned 99,300 Systems integration, sales, administration

Our corporate headquarters is in Marlborough, Massachusetts. As of December 31, 2024, we occupied more than 2.8 million square feet of facilities worldwide. Of this we own 2.4 million square feet and lease 0.4 million square feet of building space, of which the majority is used for manufacturing. Our major manufacturing facilities are located in the United States and Germany. We have ceased new investments in our Belarusian operations. We have and will continue to expand our manufacturing operations in Germany and the United States, in part to replace the lost capacity at our factories in Russia and Belarus due to sanctions, to meet the demand for our products and our sales and support needs. We conduct our major research and development activities in Oxford and Marlborough, Massachusetts and Burbach, Germany.

We own additional facilities and land for various purposes, such as sales and support and applications labs. We believe the existing facilities are in good operating condition and are suitable for the conduct of our operations.

ITEM 3. LEGAL PROCEEDINGS

From time to time, we are party to various legal claims and legal proceedings and other disputes incidental to our business, such as employment, intellectual property or product issues. For a discussion of the risks associated with such matters, see Item 1A. "Risk Factors — We are subject to litigation alleging that we infringe third-party intellectual property rights. Intellectual property claims could result in costly litigation and harm our business." and "Risk Factors — We must comply with and could be impacted by various export controls and trade and economic sanctions laws and regulations that could negatively affect our business and may change due to diplomatic and political considerations outside of our control."

In December 2024, affiliates of Trumpf SE & Co. KG (“Trumpf”) filed patent lawsuits in two different Unified Patent Courts located in Germany against IPG Laser GmbH & Co. KG alleging infringement of two patents granted by the European Patent Office by our adjustable mode beam (AMB) lasers. Our AMB lasers are used in the welding of electric vehicle batteries as well as structural welding. The matter is still in its early stages and we intend to defend it vigorously.

ITEM 4. MINE SAFETY DISCLOSURES

Not applicable.

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PART II

ITEM 5. MARKET FOR THE REGISTRANT’S COMMON EQUITY, RELATED STOCKHOLDER MATTERS AND ISSUER PURCHASES OF EQUITY SECURITIES

Our common stock is quoted on the Nasdaq Global Select Market under the symbol "IPGP." As of February 18, 2025, there were 42,548,561 shares of our common stock outstanding held by 30 holders of record, which does not include beneficial owners of common stock whose shares are held in the names of various securities brokers, dealers and registered clearing agencies.

Stock Price Performance Graph

The following Stock Price Performance Graph and related information includes comparisons required by the SEC. The graph does not constitute "soliciting material" and should not be deemed "filed" or incorporated by reference into any other filings under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended, except to the extent that we specifically incorporate this information by reference into such filing.

The following graph presents the cumulative shareholder returns for our Common Stock compared with the Russell 3000 Index and the S&P Composite 1500 - Electronic Equipment, Instruments & Components Index. We include the Russell 3000 Index because we became a member of this index in 2022. We include the S&P Composite 1500 - Electronic Equipment, Instruments & Components Index because outstanding performance stock units awarded to executive officers and outstanding at December 31, 2024 use this index when comparing total shareholder return and due to our being an index member, industry similarities, our internal use to monitor executive compensation, and the fact that it contains several direct competitors.

The above graph represents and compares the value, through December 31, 2024, of a hypothetical investment of $100 made at the closing price on December 31, 2019 in each of (i) our common stock, (ii) Russell 3000 Index, and (iii) the S&P Composite 1500 - Electronic Equipment, Instruments & Components Index, in each case assuming the reinvestment of dividends. The stock price performance shown in this graph is not necessarily indicative of, and not is intended to suggest, future stock price performance.

Base Period 5-Year Cumulative Total Return

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Dividends

We do not anticipate paying cash dividends in the foreseeable future. Any future determination related to our dividend policy will be made at the discretion of our Board, taking into account any contractual and legal restrictions on our payment of dividends.

Recent Sales of Unregistered Securities; Use of Proceeds from Registered Securities

None.

Issuer Purchases of Equity Securities

The following table shows repurchases of our common stock in the fiscal quarter ended December 31, 2024:

(1)Total number of shares (or units) purchased includes shares repurchased as part of publicly announced plans or programs and "withhold to cover" tax liabilities upon vesting of restricted stock awards. For the fourth quarter of 2024, a total of 1,214 shares were withheld to cover at an average price of $81.45.

(2)On February 13, 2024, we announced that our Board of Directors authorized the purchase of up to $300 million of IPG common stock (the "February 2024 authorization"), exclusive of any fees, commissions or other expenses. Share repurchases under these purchase authorization were made periodically in open-market transactions using our working capital, and were subject to market conditions, legal requirements and other factors. The share purchase program authorizations did not obligate us to repurchase any dollar amount or number of our shares, and repurchases could be commenced or suspended from time to time without prior notice.

We repurchased 741,412 shares in the fourth quarter of 2024 under the February 2024 authorization.

ITEM 6. RESERVED

ITEM 7. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

The following discussion and analysis of our financial condition and results of operations should be read in conjunction with our consolidated financial statements and related notes included in this Annual Report on Form 10-K. This discussion contains forward-looking statements that involve risks and uncertainties. Our actual results could differ materially from those anticipated in these forward-looking statements as a result of certain factors including, but not limited to, those discussed under Item 1A, "Risk Factors." The following analysis generally discusses 2024 and 2023 items and year-to-year comparisons between 2024 and 2023. Discussions of 2022 items and year-to-year comparisons between 2023 and 2022 that are not included in this Form 10-K can be found in “Management’s Discussion and Analysis of Financial Condition and Results of Operations” in our Annual Report on Form 10-K for the fiscal year ended December 31, 2023 filed with the SEC on February 21, 2024.

Overview

We develop, manufacture and sell high-performance fiber lasers, fiber amplifiers, diode lasers and laser-based systems that are used for diverse applications, primarily in materials processing, medical and advanced applications. We also manufacture and sell complementary products used with our lasers including optical delivery cables, fiber couplers, beam switches, optical processing heads, in-line sensors and chillers. We sell our products globally to original equipment manufacturers ("OEMs"), system integrators and end users. We market our products internationally, primarily through our

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direct sales force. Our major manufacturing facilities are located in the United States and Germany. In response to the risks from the Russia-Ukraine conflict and related sanctions, we have ceased new investment in our Belarusian operations and expanded our manufacturing operations in Germany, the United States and Italy, and have added manufacturing capacity in Poland to meet the demand for our products and our sales and support needs. We have sales and service offices and applications laboratories worldwide.

We are vertically integrated such that we design and manufacture most of the key components used in our finished products, from semiconductor diodes to optical fiber preforms, finished fiber lasers and complementary products. Our vertically integrated operations allow us to reduce manufacturing costs, control quality, rapidly develop and integrate advanced products and protect our proprietary technology.

Description of Our Net Sales, Costs and Expenses

Net sales. We derive net sales primarily from the sale of fiber lasers, fiber amplifiers, diode lasers, laser and non-laser based systems and complementary products. We sell our products to OEMs that supply materials processing laser systems, medical laser systems and other laser systems to end users. We also sell our laser products and laser and non-laser based systems to end users. Our scientists and engineers work closely with OEMs, systems integrators and end users to analyze their system requirements and match appropriate fiber laser, amplifier or system specifications to those requirements. Our sales cycle varies substantially, ranging from a period of a few weeks to as long as one year or more, but is typically several months.

Sales of our products are generally recognized upon shipment, provided that no obligations remain and collection of the receivable is reasonably assured. Sales of customized large scale material processing systems are recognized over time. Our sales typically are made on a purchase order basis rather than through long-term purchase commitments.

We develop our products to standard specifications and use a common set of components within our product architectures. Our major products are based upon a common technology platform. We continually enhance these and other products by improving their components and developing new components and new product designs.

Cost of sales. Our cost of sales consists primarily of the cost of raw materials and components, direct labor expenses and manufacturing overhead. We are vertically integrated and currently manufacture all critical components for our products as well as assemble finished products. We believe our vertical integration allows us to increase efficiencies, leverage our scale and lower our cost of sales. Cost of sales also includes personnel costs and overhead related to our manufacturing, engineering and service operations, related occupancy and equipment costs, shipping costs and reserves for inventory obsolescence and for warranty obligations. Inventories are written off and charged to cost of sales when identified as excess or obsolete.

Due to our vertical integration strategy and ongoing investment in plant and machinery, we maintain a relatively high fixed manufacturing overhead. We may not be able to or choose not to adjust these fixed costs to adapt to rapidly changing market conditions. Our gross margin is therefore significantly affected by our sales volume and the corresponding utilization of capacity and absorption of fixed manufacturing overhead expenses.

Sales and marketing. Our sales and marketing expense consists primarily of costs related to compensation, trade shows, professional and technical conferences, travel, facilities, amortization of intangible assets identified from acquisitions, depreciation of equipment used for demonstration purposes and other marketing costs.

Research and development. Our research and development expense consists primarily of compensation, development expenses related to the design of our products and certain components, the cost of materials and components to build prototype devices for testing, facilities costs and depreciation of equipment and facilities that have an alternative future use used for research and development purposes. Costs related to product development are recorded as research and development expenses in the period in which they are incurred.

General and administrative. Our general and administrative expense consists primarily of compensation and associated costs for executive management, finance, legal, human resources, information technology and other administrative personnel, outside legal and professional fees, insurance premiums and fees, allocated facilities costs, depreciation of facilities and other corporate expenses such as charges and benefits related to the change in allowance for credit losses.

Factors and Trends That Affect Our Operations and Financial Results

In reading our financial statements, you should be aware of the following factors and trends that our management believes are important in understanding our financial performance.

Sale of our Russian Operations. On August 29, 2024, we completed the sale of our Russian subsidiary, Scientific and Technical Association “IRE-Polus”, pursuant to a share purchase agreement with a purchaser entity associated with Softline

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Projects LLC and existing management of IRE-Polus for $51.1 million. We recorded a loss on divestiture of $197.7 million for the quarter ended September 30, 2024, which was included in Net loss (gain) from divestiture and sale of assets in our Consolidated Statements of Operations. The loss included $59.3 million related to the carrying value of net assets of our Russian subsidiary that was in excess of net proceeds received on the sale. Included in the net assets sold was cash and cash equivalents of $74.0 million. Also included in the loss was $135.3 million related to the cumulative translation adjustment component of other comprehensive loss that was previously included in stockholders' equity of our Consolidated Balance Sheets. As a result of the Russia-Ukraine conflict and related sanctions, our ability to ship and receive components from our Russian operations was significantly curtailed. In response, we expanded our manufacturing capacity in Germany, the United States and Italy, and added new manufacturing capacity in Poland which effectively offset our inability to utilize the Russian operations.

Belarusian Operations. We manufacture laser cabinets and other mechanical components in Belarus. In response to the Russia-Ukraine conflict, the EU issued additional sanctions impacting commerce with Belarus on June 29, 2024, which restricted the supply of laser cabinets and other mechanical components from our factory in Belarus to our Germany operations after October 2, 2024. As a result of the sanctions and their impact on our Belarus operations, we completed an impairment analysis of our Belarus assets during the third quarter of 2024 and recorded $26.6 million of impairment of long-lived asset in our Consolidated Statements of Operations. At December 31, 2024, the remaining value of the long-lived assets in Belarus was $3.8 million, net working capital excluding cash was immaterial and cash was $4.7 million. The net asset value of our Belarus subsidiary has been reduced by $18.6 million due to the cumulative translation effect of the Belarusian ruble compared to the U.S. dollar, which is included in the accumulated other comprehensive loss component of stockholders' equity. We may incur additional asset impairment charges related to the Belarus operations and the other comprehensive loss that is currently in the equity section of our Consolidated Balance Sheets could be charged to our Consolidated Statements of Operations.

We continue to review our operations in Belarus including potential strategic alternatives. We have qualified third party vendors to supply components previously supplied from Belarus and have begun purchasing from them. Our Board of Directors monitors and continues to assess risks associated with our Belarusian operations.

Supply Chain. We experienced supply chain issues related to the Covid epidemic and related to sanctions that affected the flow of goods to and from our factories in Russia and Belarus. These issues caused us to maintain higher levels of inventory in order to minimize the risk of disruption in production. While these supply chain issues are no longer having a significant impact on our operations, we have experienced increases in our provisions for excess and obsolete inventory as a result of higher inventory levels. In 2024, we recorded additional inventory provisions of $29.5 million attributed to items previously considered safety stock and items that became technologically obsolete.

Net sales. Net sales decreased by 24% in 2024, decreased by 10% in 2023 and decreased 2% in 2022. Our growth rates are subject to several factors, many of which are not under our control.

Our business depends substantially upon capital expenditures by end users, particularly by manufacturers using our products for materials processing, which includes general manufacturing, automotive including electric vehicles ("EV"), other transportation, aerospace, heavy industry, consumer, semiconductor and electronics. Approximately 88% of our revenues in 2024 were from customers using our products for materials processing. Although applications within materials processing are broad, the capital equipment market in general is cyclical and historically has experienced sudden and severe downturns. For the foreseeable future, our operations will continue to depend upon capital expenditures by end users of materials processing equipment and will be subject to the broader fluctuations of capital equipment spending.

In recent years, our net sales and margins have been negatively impacted by tariffs and trade policy. New tariffs and other changes in U.S. trade policy could trigger retaliatory actions by affected countries, and certain foreign governments. We are also susceptible to global or regional disruptions such as political instability, geopolitical conflicts, acts of terrorism, significant fluctuations in currency values, natural disasters and pandemics to the extent that they affect macroeconomic conditions, global supply chains or individual IPG locations.

The average selling prices of our products generally decrease as the products mature. These decreases result from factors such as increased competition, decreased manufacturing costs and increased unit volumes. We may also reduce selling prices in order to penetrate new markets and applications. Furthermore, we may negotiate discounted selling prices from time to time with certain customers that place high unit-volume orders.

The secular shift to fiber laser technology in large materials processing applications, such as welding and cutting applications, had a positive effect on our sales trends in the past such that our sales trends were often better than other capital equipment manufacturers in both positive and negative economic cycles. As the secular shift to fiber laser technology matures in such applications, our sales trends are more susceptible to economic cycles, which can broadly affect the demand for capital

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equipment including machine tools and industrial lasers, and competition from other fiber laser manufacturers. Additionally, as our technology matures, we become subject to more competition which can affect sales trends.

Gross margin. Our total gross margin in any period can be significantly affected by a number of factors, including net sales, production volumes, competitive factors, product mix, and by other factors such as changes in foreign exchange rates relative to the U.S. dollar. Many of these factors are not under our control. The following are examples of factors affecting gross margin:

•As our products mature, we can experience additional competition, which tends to decrease average selling prices and affects gross margin;

•Our gross margin can be significantly affected by product mix. Within each of our product categories, the gross margin is generally higher for devices with greater average power, higher technical complexity or demanding performance parameters. These higher power products often have better performance, more difficult specifications to attain and fewer competing products in the marketplace;

•Higher power lasers also use a greater number of optical components, improving absorption of fixed overhead costs and enabling economies of scale in manufacturing;

•The gross margin for certain specialty products may be higher because there are fewer or sometimes no equivalent competing products;

•Customers that purchase devices in greater unit volumes generally are provided lower prices per device than customers that purchase fewer units. In general, lower selling prices to high unit volume customers reduce gross margin although this may be partially offset by improved absorption of fixed overhead costs associated with larger product volumes, which drive economies of scale;

•Gross margin on systems can be lower than gross margin for our lasers and sub-systems, depending on the configuration, volume and competitive forces, among other factors;

•Persistent inflation leading to increases in average manufacturing salaries as well as an increase in the purchase price of components including, but not limited to, electronic components and metal parts could negatively impact gross margin if we are not able to pass those increases on to customers by increasing the selling price of our products;

•Changes in relative exchange rates between currencies we receive when selling our products and currencies we use to pay our manufacturing expenses; and finally,

•Our gross margin from products on new manufacturing lines can be lower due to production inefficiencies, lower yields and high scrap costs.

We expect that some new technologies, products and systems will have returns above our cost of capital but may have gross margins below our corporate average. If we are able to develop opportunities that are significant in size, competitively advantageous or leverage our existing technology base and leadership, our current gross margin levels may not be maintained. Instead, we aim to deliver industry-leading levels of gross margins by growing sales, by taking market share in existing markets, or by developing new applications and markets we address, by reducing the cost of our products and by optimizing the efficiency of our manufacturing operations.

We invested $98.5 million, $110.5 million and $110.1 million in capital expenditures in 2024, 2023 and 2022, respectively. Most of this investment relates to expansion of our manufacturing capacity and, to a lesser extent, research and development and sales-related facilities. We received $28.6 million, $31.2 million and $26.9 million in proceeds from the sale of property, plant and equipment in 2024, 2023 and 2022, respectively.

A high proportion of our costs is fixed so costs are generally difficult to adjust or may take time to adjust in response to changes in demand. In addition, our fixed costs increase as we expand our capacity. If we expand capacity faster than is required by sales growth, gross margins could be negatively affected. Gross margins generally decline if production volumes are lower as a result of a decrease in sales or a reduction in inventory because the absorption of fixed manufacturing costs will be reduced. Gross margins generally improve when the opposite occurs. If both sales and inventory decrease in the same period, the decline in gross margin may be greater if we cannot reduce fixed costs or choose not to reduce fixed costs to match the decrease in the level of production. If we experience a decline in sales that reduces absorption of our fixed costs, or if we have production issues, our gross margins will be negatively affected.

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We also regularly review our inventory for items that are slow-moving, have been rendered obsolete or are determined to be excess. Any provision for such slow-moving, obsolete or excess inventory affects our gross margins. For example, we recorded provisions for slow-moving, obsolete or excess inventory and other inventory related charges totaling $82.5 million, $45.5 million and $128.0 million in 2024, 2023 and 2022, respectively. Inventory provisions of $29.5 million in 2024 were attributed to items previously considered safety stock and items that became technologically obsolete. Inventory provision and related charges of $74.1 million in 2022 were attributable to Russian operations.

Selling and general and administrative expenses. In the past, we invested in selling and general and administrative costs in order to support continued growth in the Company. As the secular shift to fiber laser technology matures, our sales growth becomes more susceptible to the cyclical trends typical of capital equipment manufacturers. Accordingly, our future management of and investments in selling and general and administrative expenses will also be influenced by these trends, although we may still invest in selling or general and administrative functions to support certain initiatives even in economic down cycles. Certain general and administrative expenses are not related to the level of sales and may vary quarter to quarter based primarily upon the level of acquisitions, litigation and project related consulting expenses.

Research and development expenses. We plan to continue to invest in research and development to improve our existing components and products and develop new components, products, systems and applications technology. We believe that these investments will sustain our position as a leader in the fiber laser industry and will support development of new products that can address new markets and growth opportunities. The amount of research and development expense we incur may vary from period to period.

Goodwill and long-lived assets impairments. We review our intangible assets and property, plant and equipment for impairment when events or changes in circumstances indicate the carrying value may not be recoverable. Goodwill is required to be tested for impairment at least annually. Negative industry or economic trends, including reduced estimates of future cash flows, disruptions to our business, slower growth rates, lack of growth in our relevant business units, differences in the estimated product acceptance rates, or market prices below the carrying value of long-lived assets evaluated for sale could lead to impairment charges against our long-lived assets, including goodwill and other intangible assets.

As noted above, we recorded $26.6 million impairment of long-lived assets included in Impairment of long-lived assets in our Consolidated Statements of Operations. After impairment, the remaining carrying value of the long-lived assets in Belarus is $3.8 million.

Our valuation methodology for assessing impairment requires management to make significant judgments and assumptions based on historical experience and to rely heavily on projections of future operating performance at many points during the analysis. Also, the process of evaluating the potential impairment of goodwill is subjective. We operate in a highly competitive environment and projections of future operating results and cash flows may vary significantly from actual results. If our analysis indicates potential impairment to goodwill in one or more of our reporting units, we may be required to record charges to earnings in our financial statements, which could negatively affect our results of operations.

Foreign exchange. Because we are a U.S.-based company doing business globally, we have both translational and transactional exposure to fluctuations in foreign currency exchange rates. Changes in the relative exchange rate between the U.S. dollar and the foreign currencies in which our subsidiaries operate directly affects our sales, costs and earnings. Differences in the relative exchange rates between where we sell our products and where we incur manufacturing and other operating costs (primarily in the U.S. and Germany) also affects our costs and earnings. Certain currencies experiencing significant exchange rate fluctuations like the euro, the Russian ruble, the Chinese yuan and Japanese yen have had and could have an additional significant impact on our sales, costs and earnings. Our ability to adjust the foreign currency selling prices of products in response to changes in exchange rates is limited and may not offset the impact of the changes in exchange rates on the translated value of sales or costs. In addition, if we increase the selling price of our products in local currencies, this could have a negative impact on the demand for our products.

Income taxes. On December 15, 2022, the European Union (EU) Member States formally adopted the EU’s Pillar Two Directive, which generally provides for a minimum effective tax rate of 15%, as established by the Organization for Economic Co-operation and Development ("OECD") Pillar Two Framework that was supported by over 130 countries worldwide. The EU effective dates were January 1, 2024, and January 1, 2025, for different aspects of the directive. The impact of the Pillar Two Framework on our income tax provision in 2024 was not material. We are continuing to evaluate the potential impact of the Pillar Two Framework on future periods, pending legislative adoption by additional individual countries.

Major customers. While we have historically depended on a few customers for a large percentage of our annual net sales, the composition of this group can change from year to year. Net sales derived from our five largest customers as a percentage of our annual net sales were 13%, 13% and 15% in 2024, 2023 and 2022, respectively. One of our customers accounted for 12% and 14% of our net accounts receivable as of December 31, 2024 and 2023, respectively.We seek to add new customers and to

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expand our relationships with existing customers. We anticipate that the composition of our significant customers will continue to change. We generally do not enter into agreements with our customers obligating them to purchase a fixed number or large volume of our products. If any of our significant customers substantially reduced their purchases from us, our results would be adversely affected.

Critical Accounting Policies and Estimates

The preparation of financial statements in conformity with accounting principles generally accepted in the United States ("GAAP") requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of net sales and expenses. Refer to Note 1, "Nature of Business and Summary of Significant Accounting Policies," in our consolidated financial statements for additional information. By their nature, these estimates and judgments are subject to an inherent degree of uncertainty. We base our estimates and judgments on our historical experience and on other assumptions that we believe are reasonable under the circumstances, the results of which form the basis for making the judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. Actual results could differ from those estimates, which may materially affect our operating results and financial position. We have identified the following items that require the most significant judgment and often involve complex estimation:

Revenue Recognition. Revenue is recognized when transfer of control to the customer occurs (i.e., when our performance obligation is satisfied) in an amount reflecting the consideration that we expect to be entitled. For the majority of our revenue, this typically occurs at a point in time such as shipment or delivery date, but can occur over time for certain of our customized large scale materials processing systems contracts. We also recognize revenue over time for sales of extended warranties. When goods or services have been delivered to the customer, but all conditions for revenue recognition have not been met, deferred revenue and deferred costs are recorded on our Consolidated Balance Sheets.

Judgments and Uncertainties: Recognizing revenue at shipment or delivery involves some judgment, particularly when we receive orders with multiple delivery dates. We allocate the transaction price of the contract to each delivery date based upon the standalone selling price of each distinct product in the contract. We invoice for each scheduled delivery upon shipment and recognize revenue for such delivery when transfer of control has occurred. Recognizing revenue over time for customized large scale materials processing systems contracts is based on our judgment that these systems do not have an alternative use and we have an enforceable right to payment for performance completed to date. Recognizing revenue over time also requires estimation of the progress towards completion based on the projected costs of the contract.

Sensitivity of Estimate to Change: Recognizing revenue at a point in time is sensitive to changes in shipping or delivery dates. Revenue recognition over time is sensitive to the actual costs incurred as compared to the projected total cost of the project. We monitor the actual and projected costs of these contracts closely. A change in the projected cost of a project will affect the estimated percentage of completion, the amount of revenue recognized and estimated gross margin.

Inventory. We maintain a reserve for excess or obsolete inventory items. The reserve is based upon a review of inventory materials on hand, which we compare with historic usage, estimated future usage and age. In addition, we review the inventory and compare recorded costs with estimates of current market value. Write-downs are recorded to reduce the carrying value to the net realizable value with respect to any part with costs in excess of current market value. In the fourth quarter of 2022, we performed a review of the inventory in Russia in light of new sanctions which restricted our Russian factory's ability to supply components and finished goods to other IPG locations. We recorded $74.1 million of additional inventory provision and related charges as a result of that review in 2022. In the third quarter of 2024, we recorded $29.5 million of additional inventory provision that was attributed to items previously considered safety stock and items that became technologically obsolete.

Judgments and Uncertainties: Estimating demand and current market values is inherently difficult, particularly given that we make highly specialized components and products. We determine the valuation of excess and obsolete inventory by making our best estimate considering the current quantities of inventory on hand and our forecast of the need for this inventory to support future sales of our products. We often have limited information on which to base our forecasts. If future sales differ from these forecasts, the valuation of excess and obsolete inventory may change and additional inventory provisions may be required.

Sensitivity of Estimate to Change: Because of our vertical integration, a significant or sudden decrease in sales could result in a significant change in the estimates of excess or obsolete inventory valuation. Because our calculation of slow-moving, excess or obsolete inventory is based on historical and estimated future use of inventory items, the calculation is affected by sales trends. In 2024, we recorded inventory provision of $29.5 million for items previously considered safety stock and items that became technologically obsolete. In 2023, as sales decreased the inventory provision related to slow-moving, excess or obsolete inventory increased. In 2022, we recorded inventory provision and related charges of $74.1 million as a

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result of the review of the inventory in Russia. For the rest of our operations, as safety stock increased excess and obsolete inventory reserves increased during 2022.

Long-lived Asset Impairment. Long-lived assets including definite-lived intangible assets are amortized on a straight-line basis over the estimated useful life. We review these assets for impairment when conditions exist that indicate the carrying amount of the assets may not be recoverable. Such conditions could include significant adverse changes in the business climate, current-period operating or cash flow losses, significant declines in forecasted operations, or a current expectation that an asset group will be disposed of before the end of its useful life. We perform undiscounted operating cash flow analyses to determine if an impairment exists. When testing for impairment of long-lived assets held for use, we group assets at the lowest level for which cash flows are separately identifiable. If an impairment is determined to exist, the loss is calculated based on estimated fair value based on a probability-weighted average of valuations using the discounted cash flow method under the income approach. We recorded long-lived asset impairment charge of $27.0 million, $1.2 million, and $79.9 million in 2024, 2023 and 2022, respectively. Impairment charges in 2022 and 2024 primarily related to the impairment of our Russian and Belarus long-lived assets, respectively, as a result of new sanctions that impacted our business there.

Judgments and Uncertainties: Our valuation methodology for assessing impairment requires management to make significant judgments and assumptions based on historical experience and to rely heavily on projections of future operating performance at many points during the analysis. Estimating undiscounted operating cash flow used to determine if there is indication of impairment of a long-lived asset requires us to make assumptions and estimates regarding our future plans, as well as industry, economic, and regulatory conditions. Fair value estimates performed to determine impairment charge amounts are subject to underlying changes in estimates and market conditions. Assumptions used in long-lived asset impairment are made at a point in time and require significant judgment; therefore, they are subject to change based on the facts and circumstances present at each impairment test date.

Sensitivity of Estimate to Change: Undiscounted cash flows and fair value are sensitive to changes in underlying assumptions, estimates, and market factors. Negative industry or economic trends, including reduced estimates of future cash flows, disruptions to our business, slower growth rates, lack of growth in our relevant business units, differences in the estimated product acceptance rates, or market prices below the carrying value of long-lived assets evaluated for sale could lead to impairment charges against our long-lived assets.

Income Taxes and Deferred Taxes. Our annual tax rate is based on the income generated in the jurisdictions in which we operate, the statutory tax rates in those jurisdictions and tax planning opportunities available to the Company. We file federal and state income tax returns in the United States and income tax returns in all the foreign jurisdictions in which we operate.

Judgments and Uncertainties: We estimate our income tax expense in each jurisdiction we operate in after considering, among other factors, the pricing of inter-company transactions on an arm’s length basis, the differing tax rates between jurisdictions, allocation factors, tax credits, nondeductible items and changes in enacted tax rates. Significant judgment is required in determining the pricing of inter-company transactions, our annual tax expense and in evaluating our tax positions in the various jurisdictions in which we operate. As we continue to expand globally, there is a risk that, due to complexity within and diversity among the various jurisdictions in which we do business, a governmental agency may disagree with the manner in which we have computed our taxes. Additionally, due to the lack of uniformity among all of the foreign and domestic taxing authorities, there may be situations where the tax treatment of an item in one jurisdiction is different from the tax treatment in another jurisdiction or that the transaction causes a tax liability to arise in another jurisdiction.

In addition, we review the deferred tax assets in each jurisdiction and the positive and negative evidence that would support a conclusion that a valuation allowance is or is not needed. Where it is more likely than not that some portion of the deferred tax assets will not be realized, we record a valuation allowance against the deferred tax assets. The decision to establish a valuation allowance or reverse it is based on management’s judgment based on the weight of available evidence including forecasts of future taxable income and the future reversal of existing taxable temporary differences.

Sensitivity of Estimate to Change: We provide reserves for potential payments of tax to various tax authorities related to uncertain tax positions and other issues. Reserves recorded are based on a determination of tax benefits claimed in our tax filings and whether these positions are more likely than not to be realized following the resolution of any potential tax audits related to the tax benefit, assuming that the matter in question will be reviewed by the tax authorities. Potential interest and penalties associated with such uncertain tax positions are recorded as a component of income tax expense. As of December 31, 2024, we had $13.9 million of unrecognized tax benefits, excluding interest and penalties, recorded in other long-term liabilities and deferred income taxes on our Consolidated Balance Sheets. This tax liability increased by $0.2 million for tax positions taken in the current year offset by reductions of $3.4 million for changes in prior period positions.

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Results of Operations

The following table sets forth selected statement of operations data for the periods indicated in dollar amounts and expressed as a percentage of net sales:

Year Ended December 31,

(In thousands, except percentages and per share data)

Operating expenses:

Restructuring charges (recoveries), net — — (288) — 9,697 0.7

Less: net income attributable to non-controlling interest — — — — 853 0.1

Net (loss) income attributable to IPG Photonics Corporation per common share:

Weighted average common shares outstanding:

Comparison of Year Ended December 31, 2024 to Year Ended December 31, 2023

Net sales. Net sales decreased by $310.3 million, or 24.1%, to $977.1 million in 2024 from $1,287.4 million in 2023. The table below sets forth sales by application:

Year Ended December 31,

(In thousands, except for percentages)

Sales by Application % of Total % of Total

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The table below sets forth sales by type of product and other revenue:

Year Ended December 31,

(In thousands, except for percentages)

Sales by Product % of Total % of Total

Materials Processing

Sales for materials processing applications decreased primarily due to lower sales of high power CW lasers, pulsed lasers, and other laser products and services.

•High power CW laser sales decreased due to lower sales for cutting and welding applications, and were primarily impacted by softer industrial demand and a decrease in e-mobility investments. Pulsed laser sales decreased due to lower demand in foil cutting and micro-machining applications.

Other Applications

Sales from other applications decreased primarily due to decreased demand for lasers used in medical procedures.

Our net sales were derived from customers in the following geographic regions:

Year Ended December 31,

(In thousands, except for percentages)

Sales by Geography % of Total % of Total

Europe:

Asia:

(1)The substantial majority of sales in North America are to customers in the United States.

Cost of sales and gross margin. Cost of sales decreased by $106.7 million, or 14.3%, to $639.0 million in 2024 from $745.7 million in 2023. Our gross margin decreased to 34.6% in 2024 from 42.1% in 2023. Gross margin decreased mainly due to increased provisions for excess and obsolete inventory, specifically additional inventory provisions of $29.5 million attributed to items previously considered safety stock and items that became technologically obsolete. In addition to provisions for inventory reserves, gross margin declined due to an increase in unabsorbed manufacturing costs, partially offset by a decrease in cost of product sold from inventory and shipping costs and tariffs, as a percentage of sales. Expenses related to provisions for excess or obsolete inventory and other valuation adjustments increased by $37.0 million to $82.5 million, or

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8.4% of sales, for the year ended December 31, 2024, as compared to $45.5 million, or 3.5% of sales, for the year ended December 31, 2023.

Sales and marketing expense. Sales and marketing expense increased by $3.9 million, or 4.6%, to $89.6 million in 2024 from $85.7 million in 2023. This change was primarily a result of an increase of $3.5 million in personnel and related costs and $2.3 million in premises expense, partially offset by $2.2 million in lower depreciation and amortization expense. As a percentage of sales, sales and marketing expense was 9.2% and 6.7% of sales in 2024 and 2023, respectively.

Research and development expense. Research and development expense increased by $11.1 million, or 11.2%, to $109.8 million in 2024 from $98.7 million in 2023. This change was primarily a result of an increase of $8.3 million in personnel and related costs, an increase of $5.8 million in premises expense, partially offset by a decrease of $3.6 million in materials and other R&D expense. As a percentage of sales, research and development expense increased to 11.2% in 2024 from 7.7% in 2023. We expect to continue to invest in research and development efforts for new and continuing products.

General and administrative expense. General and administrative expense decreased by $1.4 million, or 1.1%, to $124.3 million in 2024 from $125.7 million in 2023. This change was primarily a result of a decrease of $3.8 million in personnel and related costs, partially offset by an increase of $1.0 million in legal, $0.8 million in information systems, and $0.6 million in accounting expense. As a percentage of sales, general and administrative expense increased to 12.7% in 2024 from 9.8% in 2023.

Effect of exchange rates on sales, gross margin and operating expenses. We estimate that if exchange rates had been the same as one year ago, sales in 2024 would have been $15.6 million higher, gross margin would have been $9.2 million higher and sales and marketing, research and development and general and administrative expenses would have been $3.8 million higher. These estimates assume constant exchange rates between fiscal year 2024 and fiscal year 2023 and are calculated using the average exchange rates for the twelve-month period ended December 31, 2023 for the respective currencies, which were US$1=Euro 0.92, US$1=Japanese yen 141, US$1=Chinese yuan 7.08 and US$1=Russian ruble 85.

Net loss (gain) from divestiture and sale of assets. We incurred a net loss of $190.2 million in 2024 as compared to no loss or gain in 2023. The loss primarily related to a loss of $197.7 million upon the divestiture of our Russian operations, partially offset by a gain on sale of assets of $7.5 million related to the sales of a building and land in the U.S. and a building in the U.K.

Impairment of long-lived assets. We recorded a non-cash long-lived asset impairment charge of $27.0 million in 2024 as compared to $1.2 million in 2023. The impairment of long-lived assets in 2024 was primarily related to an impairment of the assets in Belarus of $26.6 million as a result of new EU sanctions that will limit our ability to supply laser cabinets and other mechanical components from our factory in Belarus. The impairment of long-lived assets in 2023 was related to the right-of-use ("ROU") asset for a leased building associated with our Submarine Network Division business that was previously divested. Attempts to sublease the space have been unsuccessful. As of December 31, 2023, the ROU asset related to this lease has been reduced to zero.

Restructuring charges (recoveries), net. We recorded no restructuring charges nor recoveries in 2024 as compared to a net restructuring gain of $0.3 million in 2023 primarily related to the completion of our restructuring program at our Russian subsidiary.

Loss (gain) on foreign exchange. We incurred a foreign exchange loss of $5.5 million in 2024 as compared to a gain of $1.4 million in 2023. The losses in 2024 was primarily attributable to depreciation of the Chinese yuan and Korean won, partially offset by the gain from depreciation of the Euro, as compared to the U.S. dollar.

Interest income, net. Interest income, net was $45.5 million in 2024 compared to $41.7 million in 2023. The change in interest income, net, was driven by an increase in yields on cash equivalents and short term investments as a result of higher market interest rates as compared to prior year rates.

Provision for income taxes. Provision for income taxes was $19.6 million in 2024 compared to $56.0 million in 2023, representing an effective tax rate of (12.1)% in 2024 and 20.4% in 2023. The decrease in tax expense was due primarily to a reduction in taxable income. In 2024 we had tax expense on a loss before income due to the effect of discrete items. Total discrete adjustments in 2024 increased tax expense by $46.0 million. Discrete items include an increase in tax expense of $43.2 million related the loss on divestiture of Russian operations that had no tax benefit. Other discrete items for 2024 included a $3.2 million benefit related to a decrease in uncertain tax positions and the results of tax audits. This benefit was offset by an increase in tax expense of $5.4 million for equity-based compensation deductions reflected in book income in excess of the deductions allowed for tax purposes. Discrete adjustments in 2023 resulted in a $5.7 million decrease in tax expense, which includes (i) $4.3 million decrease in the valuation allowance primarily due to current year profits in our Russian subsidiary and

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(ii) $3.5 million related to a decrease in uncertain tax positions and the results of tax audits. These benefits were partly offset by an increase in tax expense of $1.8 million for equity-based compensation deductions reflected in book income in excess of the deductions allowed for tax purposes.

Net (loss) income attributed to IPG Photonics Corporation. Net (loss) income attributable to IPG Photonics Corporation decreased by $400.4 million to a net loss of $181.5 million in 2024 from a net income of $218.9 million in 2023. Net loss attributable to IPG Photonics Corporation as a percentage of our net sales decreased by 35.6% to (18.6)% in 2024 from 17.0% in 2023 due to the factors described above.

Liquidity and Capital Resources

We believe that our existing cash and cash equivalents, short-term investments, our cash flows from operations and our existing lines of credit provide us with the financial flexibility to meet our liquidity and capital needs. We expect to continue making investments in capital expenditures, assess acquisition opportunities, carry out research and development and investment in resources to strengthen our organization. The extent and timing of such expenditures may vary from period to period. Our future long-term capital requirements will depend on many factors including our level of sales, the impact of the economic environment on our growth, the timing and extent of spending to support development efforts, expansion of global sales and marketing activities, government regulation including trade sanctions, the timing and introductions of new products, the need to ensure access to adequate manufacturing capacity and the market acceptance of our current and future products.

As of December 31, 2024, we had no off-balance sheet arrangements that have, or are reasonably likely to have, a current or future material effect on our consolidated financial condition, results of operations, liquidity, capital expenditures or capital resources.

The following table presents our principal sources of liquidity:

As of December 31,

(In thousands)

Unused credit lines and overdraft facilities 78,115 78,506

Included in cash and cash equivalents is $4.7 million of cash located in Belarus, as of December 31, 2024.

Short-term investments at December 31, 2024 consist of liquid investments including commercial paper, corporate bonds, U.S. Treasury and agency obligations, and term deposits with original maturities of greater than three months but less than one year. See Note 3, "Fair Value Measurements" in the notes to the consolidated financial statements for further information about our short-term investments.

The following table details our line-of-credit facilities as of December 31, 2024:

Description Total Facility/ Note Interest Rate Maturity Security

(1) This facility is available to certain foreign subsidiaries in their respective local currencies. At December 31, 2024, there were no amounts drawn on this line, however, there were $2.1 million of guarantees issued against the line which reduces total availability.

(2) This facility is available to certain foreign subsidiaries in their respective local currencies. At December 31, 2024, there were no amounts drawn on this line, however, there were $1.5 million of guarantees issued against the line which reduces total availability.

(3) At December 31, 2024, there were no drawings. This facility renews annually.

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Our largest committed credit line is with Bank of America N.A. in the amount of $75.0 million, which is not syndicated. We are required to meet certain financial covenants associated with our U.S. revolving line of credit. These covenants, tested quarterly, include an interest coverage ratio and a funded debt to earnings before interest, taxes, depreciation and amortization ("EBITDA") ratio. The interest coverage covenant requires that we maintain a trailing twelve-month ratio of EBITDA to interest on all obligations that is at least 3.0:1.0. The funded debt to EBITDA covenant requires that the sum of all indebtedness for borrowed money on a consolidated basis be less than three times our trailing twelve months EBITDA. Funded debt is decreased by our cash and available marketable securities not classified as long-term investments in the U.S. in excess of $50 million up to a maximum of $500 million. We were in compliance with all such financial covenants as of and for the three months ended December 31, 2024.

See Note 12, "Financing Arrangements" in the notes to the consolidated financial statements for further information about our facilities.

The following table summarizes our material cash commitments at December 31, 2024 and the effect such commitments are expected to have on our liquidity and cash flows in future periods. We intend to use our existing cash, cash equivalents and short term investments as well as cash generated from operations as sources of funds for these material commitments.

Payments Due in

Total Less Than 1 Year

(In thousands)

(1)Excludes obligations related to ASC 740, reserves for uncertain tax positions, because we are unable to provide a reasonable estimate of the timing of future payments relating to the remainder of these obligations. See Note 17, "Income Taxes" to the consolidated financial statements.

The following table presents cash flow activities:

As of December 31,

(In thousands)

Cash provided by (used in) investing activities 208,732 (237,554)

Operating activities. Net cash provided by operating activities decreased by $48.1 million to $247.9 million in 2024 from $296.0 million in 2023 primarily due to a decrease in net income after adding back non-cash expenses, partially offset by an increase in cash provided by working capital. Our largest working capital items are inventory and accounts receivable. Items such as accounts payable to third parties, prepaid expenses and other current assets and accrued expenses and other liabilities are not as significant as our working capital investment in accounts receivable and inventory because of the amount of value added within IPG due to our vertically integrated structure. Accruals and payables for personnel costs including bonuses and income and other taxes payable are largely dependent on the timing of payments for those items. The decrease in cash flow from operating activities in 2024 primarily resulted from:

•a decrease in cash provided by net income after adjusting for non-cash operating activities, mainly due to lower sales; and

•an increase in cash used by income and other taxes payable due to the timing of estimated tax payments made and refunds received from filing tax returns, an installment due on the transition tax liability from the Tax Reform Act of 2017, and excise tax paid on our stock repurchase program.

The decrease in cash provided by operating activities were partially offset by:

•an increase in cash provided by accounts receivable due to the timing of collections and lower sales;

•an increase in cash provided by inventory as supply chain disruptions moderated requiring less investment in safety stock and due to a targeted plan to reduce inventory levels;

•an increase in cash provided by the timing of payments made for accounts payable and prepayments; and

•a decrease in cash used by accrued expenses from lower payouts related to accrued compensation and bonuses.

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Investing activities. Net cash provided by investing activities was $208.7 million in 2024 as compared to cash used in investing activities of $237.6 million in 2023. The cash provided by investing activities in 2024 primarily related to $370.3 million of net proceeds of short-term investments and $28.6 million of proceeds from the sale of property, plant and equipment, partially offset by $98.5 million of cash used for property, plant and equipment, $66.7 million of cash used for the acquisition of cleanLASER and $25.3 million of net cash outflow from the divestiture of our Russian operation. The cash proceeds from the sale of our Russian operation were lower than the cash and cash equivalents on hand, resulting in a cash outflow from divestiture. The cash used in investing activities in 2023 primarily related to $158.9 million of net cash used for purchases of short-term investments, and $110.5 million of proceeds from the sale of property, plant and equipment, partially offset by $31.2 million of proceeds from the sale of property, plant and equipment.

In 2025, we expect to incur approximately $105.0 million to $115.0 million in capital expenditures. Capital expenditures include investments in property, facilities and equipment to replace capacity in Russia or increase redundant capacity for critical components and upgrade or replace equipment at other facilities that is beyond its useful life. The timing and extent of any capital expenditures in and between periods can have a significant effect on our cash flow. Many of the capital expenditure projects that we undertake have long lead times and are difficult to cancel or defer to a later period. We intend to finance our capital expenditures with existing cash, cash equivalents and short term investments as well as with cash generated from operations.

Financing activities. Net cash used in financing activities was $339.6 million and $236.4 million in 2024 and 2023, respectively. The cash used in financing activities in 2024 was primarily related to the purchase of $343.8 million of treasury stock, partially offset by net proceeds of $4.2 million from the exercise of stock options net of amounts disbursed in relation to shares withheld to cover employee income taxes due upon the vesting and release of restricted stock units and shares issued under our employee stock purchase plan. The cash used in financing activities in 2023 was primarily related to the purchase of $223.5 million of treasury stock, $16.0 million of principal payments on our long-term borrowings; partially offset by net proceeds of $3.1 million from the exercise of stock options net of amounts disbursed in relation to shares withheld to cover employee income taxes due upon the vesting and release of restricted stock units and shares issued under our employee stock purchase plan.

Recent Accounting Pronouncements

See Note 1, "Nature of Business and Summary of Significant Accounting Policies" in the notes to the consolidated financial statements for a full description of recent accounting pronouncements, including the respective dates of adoption or expected adoption and effects on our consolidated financial statements contained in Part IV of this Annual Report.

ITEM 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

We are exposed to market risk in the ordinary course of business, which consists primarily of interest rate risk associated with our cash and cash equivalents and foreign exchange rate risk.

Interest rate risk. Certain interest rates are variable and fluctuate with current market conditions. Our investments have limited exposure to market risk. We maintain a portfolio of cash, cash equivalents and short-term investments, consisting primarily of money market funds and term deposits, commercial paper, U.S. government and agency securities, term deposits, and corporate bonds. None of these investments have a maturity date in excess of one year. Because of the short-term nature of these instruments, a sudden change in market interest rates would not be expected to have a material impact on our financial condition or results of operations.

We are also exposed to market risk as a result of increases or decreases in the amount of interest expense we must pay on our borrowings on our bank credit facilities. Although our U.S. revolving line of credit and our Euro credit facilities have variable rates, we do not believe that a 10% change in market interest rates would have a material impact on our financial position or results of operations.

Exchange rates. Due to our international operations, a significant portion of our net sales, cost of sales and operating expenses are denominated in currencies other than the U.S. dollar, principally the Euro and the Chinese yuan. Changes in the exchange rate of the U.S. dollar versus the functional currencies of our subsidiaries affect the translated value and relative level of sales and net income that we report from one period to the next. In addition, our subsidiaries may have assets or liabilities denominated in a currency other than their functional currency which results in foreign exchange transaction gains and losses due to changes in the value of the functional currency versus the currency the assets and liabilities are denominated in. In 2024 we incurred a loss on foreign exchange transactions of $5.5 million as compared to a gain of $1.4 million in 2023. As our Chinese and South Korean subsidiaries have net U.S. dollar denominated liabilities, the depreciation of the Chinese yuan and South Korean won relative to the U.S. dollar contributed to most of the foreign exchange loss in 2024, partially offset by gain

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on the depreciation of the Euro as our German subsidiary has net U.S. dollar denominated assets. Management attempts to minimize these exposures by partially or fully off-setting foreign currency denominated assets and liabilities at our subsidiaries that operate in different functional currencies. The effectiveness of this strategy can be limited by the volume of underlying transactions at various subsidiaries and by our ability to accelerate or delay inter-company cash settlements. As a result, we are unable to create a perfect offset of the foreign currency denominated assets and liabilities. Furthermore, if we expect a currency movement to be beneficial to us in the short or medium term, we have, on occasions, chosen not to hedge or otherwise offset the underlying assets or liabilities. However, it is difficult to predict foreign currency movements accurately.

At December 31, 2024, our material foreign currency exposure is net U.S. dollar denominated assets at subsidiaries where the Euro is the functional currency and U.S. dollar denominated liabilities where the Chinese yuan and the South Korean won is the functional currency. The net U.S. dollar denominated assets are comprised of cash, third party receivables and inter-company receivables offset by third party and inter-company U.S. dollar denominated payables. The U.S. dollar denominated liabilities are comprised of inter-company payables. A 5% change in the relative exchange rate of the U.S. dollar to the Euro applied to the net U.S. dollar asset balances as of December 31, 2024, would result in a foreign exchange gain of $1.1 million if the U.S. dollar appreciated and a $1.2 million foreign exchange loss if the U.S. dollar depreciated. A 5% change in the relative exchange rate of the U.S. dollar to the Chinese yuan applied to the net U.S. dollar liability balances as of December 31, 2024, would result in a foreign exchange loss of $0.4 million if the U.S. dollar appreciated and a $0.4 million foreign exchange gain if the U.S. dollar depreciated. A 5% change in the relative exchange rate of the U.S. dollar to the South Korea won applied to the net U.S. dollar liability balances as of December 31, 2024, would result in a foreign exchange loss of $0.4 million if the U.S. dollar appreciated and a $0.5 million foreign exchange gain if the U.S. dollar depreciated. Volatility between the U.S. dollar and the currencies to which we are exposed may be increased by changes in central bank policy, primarily related to interest rates.

In addition, we are exposed to foreign currency translation risk for those subsidiaries whose functional currency is not the U.S. dollar as changes in the value of their functional currency relative to the U.S. dollar affect the translated amounts of our assets and liabilities. Changes in the translated value of assets and liabilities due to changes in functional currency exchange rates relative to the U.S. dollar result in foreign currency translation adjustments that are a component of other comprehensive income or loss on the Consolidated Statements of Comprehensive (Loss) Income.

Foreign currency derivative instruments can also be used to hedge exposures and reduce the risks of certain foreign currency transactions; however, these instruments provide only limited protection and can carry significant cost. We have no foreign currency derivative instrument hedges as of December 31, 2024. We will continue to analyze our exposure to currency exchange rate fluctuations and may engage in financial hedging techniques in the future to attempt to minimize the effect of these potential fluctuations. Exchange rate fluctuations may adversely affect our financial results in the future.

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

ITEM 9. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIAL DISCLOSURE

None.

ITEM 9A. CONTROLS AND PROCEDURES

Evaluation of Disclosure Controls and Procedures

Under the supervision of our Chief Executive Officer and our Chief Financial Officer, our management has evaluated the effectiveness of the design and operation of our "disclosure controls and procedures" (as defined in Rules 13a-15(e) and 15d-15(e) promulgated under the Securities Exchange Act of 1934, as amended (the "Exchange Act")), as of the end of the period covered by this Annual Report on Form 10-K (the "Evaluation Date") utilizing the Committee of Sponsoring Organizations of the Treadway Commission's Internal Control - Integrated Framework ("COSO") Updated Framework issued in 2013. Based upon that evaluation, our Chief Executive Officer and our Chief Financial Officer have concluded that, as of the Evaluation Date, our disclosure controls and procedures are effective to ensure that information we are required to disclose in reports that we file or submit under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the SEC's rules and forms. Disclosure controls and procedures include, without limitation, controls and procedures designed to ensure that information required to be disclosed by an issuer in the reports that it files or submits under the Exchange Act is accumulated and communicated to the issuer's management, including its principal executive and principal financial officers, or persons performing similar functions, as appropriate to allow timely decisions regarding required disclosure.

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Management's Annual Report on Internal Control Over Financial Reporting

IPGP US Equity

IPGP · 10-K · period ended 2024-12-31

ITEM 1A. RISK FACTORS

ITEM 1B. UNRESOLVED STAFF COMMENTS

ITEM 1C. CYBERSECURITY

ITEM 2. PROPERTIES

ITEM 3. LEGAL PROCEEDINGS

ITEM 4. MINE SAFETY DISCLOSURES

ITEM 5. MARKET FOR THE REGISTRANT’S COMMON EQUITY, RELATED STOCKHOLDER MATTERS AND ISSUER PURCHASES OF EQUITY SECURITIES

ITEM 6. RESERVED

ITEM 7. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

ITEM 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

ITEM 9. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIAL DISCLOSURE

ITEM 9A. CONTROLS AND PROCEDURES

IPGP US Equity☆

IPGP · 10-K · period ended 2024-12-31

ITEM 1A. RISK FACTORS

ITEM 1B. UNRESOLVED STAFF COMMENTS

ITEM 1C. CYBERSECURITY

ITEM 2. PROPERTIES

ITEM 3. LEGAL PROCEEDINGS

ITEM 4. MINE SAFETY DISCLOSURES

ITEM 5. MARKET FOR THE REGISTRANT’S COMMON EQUITY, RELATED STOCKHOLDER MATTERS AND ISSUER PURCHASES OF EQUITY SECURITIES

ITEM 6. RESERVED

ITEM 7. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

ITEM 7A. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

ITEM 9. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIAL DISCLOSURE

ITEM 9A. CONTROLS AND PROCEDURES

IPGP US Equity