IPGP US Equity☆

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 2023 and 2022 items and year-to-year comparisons between 2023 and 2022. Discussions of 2021 items and year-to-year comparisons between 2022 and 2021 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, 2022 filed with the SEC on February 27, 2023.

Overview

We develop, manufacture and sell high-performance fiber lasers, fiber amplifiers and diode lasers that are used for diverse applications, primarily in materials processing. We also manufacture and sell complementary products used with our

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lasers including optical delivery cables, fiber couplers, beam switches, optical processing heads, in-line sensors and chillers. In addition, we offer laser-based and non-laser based systems for certain markets and applications. Our portfolio of laser solutions is used in materials processing, medical procedures, advanced applications and communications. We sell our products globally to original equipment manufacturers ("OEMs"), system integrators and end users. We market our products internationally, primarily through our direct sales force. Our major manufacturing facilities are located in the United States and Germany. As a result of the Russia-Ukraine conflict and related sanctions, our ability to ship and receive components from our Russian operations, has been significantly curtailed. We have and will continue to expand our manufacturing operations in Germany and the United States, and have added manufacturing capacity in Poland and expanded capacity in Italy to replace capacity in Russia. 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, amplifiers 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, diode lasers, laser and non-laser based systems, amplifiers and complementary products. We sell our products to OEMs that supply materials processing laser systems, communications systems, medical laser systems and other laser systems to end users. With the sale of our communications transmission product lines in August 2022, we no longer intend to target communications as a principal market. 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, 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 and facilities costs. 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 and other corporate expenses such as charges and benefits related to the change in allowance for doubtful debt.

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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.

Russia-Ukraine Conflict. The Russia-Ukraine conflict and the sanctions imposed in response to this crisis have significantly curtailed our ability to use our manufacturing operations in Russia to supply other IPG operations outside of Russia. The conflict and the risk of additional sanctions has also increased the levels of uncertainty and risks facing the Company due to our manufacturing operations in Belarus. Since the start of the conflict, we have been executing on plans to reduce our reliance on our Russia and Belarus operations by adding capacity in other countries, increasing inventories worldwide and qualifying third-party suppliers. Since 2022, we began hiring and training additional employees, expanding capacity for increased production, and running additional shifts in the U.S. and Germany and adding additional manufacturing capacity in Italy and Poland.

We believe the contingency measures outlined above that we have already put in place substantially mitigate the effects of the recent sanctions on our ability to supply finished products to customers. If we have not fully mitigated the effect of these and other trade restrictions, or if new sanctions are adopted, our ability to supply finished products to customers could be impacted. Although we believe our contingency plans mitigate the risk of our ability to supply customers with finished product, these plans require additional investments in facilities outside of Russia and Belarus in the near term as well as additional ongoing operating costs, primarily associated with the higher cost of labor outside of Russia and Belarus. While we have sufficient financial resources to make these investments and expenditures, our gross margins and financial results have been and will be adversely impacted by increased operating costs associated with these transitions. Over time, we intend to mitigate some of these increases by producing components in countries with lower labor costs than the United States and Germany, with ongoing product expense reduction initiatives, higher productivity from automation, improved yields and product specifications. We are also continuing to review our operations in Russia and Belarus.

We evaluated the recoverability of certain assets located in Russia during the fourth quarter of 2022 and incurred impairment charges that reduced the value of fixed assets, inventory and other current assets. We also incurred restructuring charges in 2022 and 2023. As of December 31, 2023, we have substantially completed the restructuring program in Russia and recovered the majority of the remaining restructuring charges accrual. Refer to Note 6 "Restructuring" in the notes to the consolidated financial statements for further information.

Sales to third-parties in Russia were approximately 3% of our revenue for the years ended December 31, 2023 and 2022. Our Russian subsidiary has historically supplied certain finished goods for our Chinese market. Sanctions have limited our ability to provide components to Russia for the completion of finished lasers. Although our Russian operation has an amount of safety stock, we are also producing more finished lasers for China at other IPG locations. The total value of product shipped to the Chinese market from Russia was approximately $15.8 million and $61.5 million for the years ended December 31, 2023 and 2022, respectively.

At December 31, 2023, we had working capital excluding cash and cash equivalents of $23.6 million in Russia of which $20.2 million is inventory. We had $76.4 million of cash and cash equivalents in Russia. The net asset value of our Russian subsidiary was $103.9 million. The net value of assets in Russia was reduced by a $138.5 million other comprehensive loss related to the cumulative translation of the Russian ruble into U.S. dollars. Depending upon the outcome of our review of our Russian operations, we may incur additional asset impairment charges and the other comprehensive loss that is currently in the equity section of our consolidated balance sheets may be charged to our consolidated statements of income.

We continue to manufacture laser cabinets and other mechanical components in Belarus. Trade sanctions have not significantly affected our ability to supply these items from Belarus to other manufacturing locations. The value of the long-lived assets in Belarus was $31.8 million at December 31, 2023, and we had working capital excluding cash of $4.4 million in Belarus of which $4.5 million is inventory. In addition, we had $5.5 million cash in Belarus. If additional sanctions are imposed on Belarus or Belarus places restrictions on our operations there, it could trigger an asset impairment evaluation and may result in impairment charges in the future.

Our Board of Directors has been monitoring and continues to assess and monitor risks to our business associated with the Russia-Ukraine conflict and our Russian and Belarus operations. Our Directors request and receive management reports from management regarding our Russian and Belarus operations, contingency planning and execution, and impacts on our business at its quarterly and special meetings.

COVID-19. Global demand trends have been impacted by the COVID-19 pandemic While business conditions generally improved from the severe contraction experienced in 2020, it is difficult to predict whether conditions could change if there are additional restrictions imposed as a result of a resurgence in COVID-19 infections. To date, we have been able to accommodate these challenges to our business operations and continue to meet customer demand. If guidelines or mandates from relevant

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authorities becomes more restrictive due to a resurgence of COVID-19 in a particular region, the effect on our operations could be more significant.

Supply Chain. We and our customers are experiencing improvements in lead times and availability of components purchased from third party suppliers; including many electronic components as compared to those experienced during the COVID-19 pandemic. We, our customers and our suppliers continue to face some constraints related to supply chain and logistics, including availability of capacity, materials, warehouse space, sea containers and higher freight rates. While supply chain and logistics constraints moderated in 2023, they have not yet fully returned to pre-pandemic conditions. Supply chain constraints have not significantly affected our business but they have moderately increased our freight costs, caused us to carry higher levels of safety stock for certain inventory items, and increased the cost of certain electronic components. We received substantial shipments in 2023 of electronic components ordered during the occurrence of shortages from the COVID-19 pandemic. We are implementing changes to our logistics process to address increased freight costs.

Net sales. Our annual revenue growth rates have varied from year to year. Net sales decreased by 10% in 2023, decreased by 2% in 2022 and increased 22% in 2021. Our growth rates are subject to several factors, many of which are not in our control. These include:

•Macroeconomic conditions including changes in foreign exchange rates compared to the U.S. dollar;

•Competition;

•Our ability to develop new products and new applications for existing or new products;

•Geopolitical conditions in our end markets; and

•Pandemic, plagues, wars, conflicts, natural disasters or other shocks affecting global trade.

We are experiencing declines for sales in cutting applications. OEM’s that manufacture cutting machines were some of the earliest adopters of fiber lasers and this market is now mature so growth trends are more subject to general economic factors affecting capital equipment purchases. In addition, we are experiencing significant price competition in China for lasers sold in this application and we have lost market share in China to competitors as a result. The declines in revenue that we are experiencing in cutting are significantly, but not completely, offset by growth in sales of lasers in other applications and new products. Lasers used for welding applications are growing generally and for electric vehicle and battery manufacturing in particular. Lasers used for foil cutting related to battery manufacturing are another area of growth. We are also experiencing growth in new or emerging products such as LightWELD and laser based systems, lasers used for medical procedures and lasers with short pulse durations and at mid infrared and visible wavelengths. Lasers used for applications such as cleaning and ablation, additive manufacturing, solar cell manufacturing and annealing have become a more significant component of our total sales. While these products and applications are growing, they are only partially offsetting the decline in cutting and sales trends for any one product or application may vary from quarter to quarter or year.

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 90% of our revenues in 2023 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 response to inflation, some global central banks have adopted less accommodating monetary policy and have increased benchmark interest rates in several major global economies in 2023. The increase in interest rates is intended to dampen demand that could lead to regional or global recession that may reduce demand for our products. In addition, an increase in interest rates would increase the cost of equipment financed with leases or debt. If inflation starts to moderate in 2024, global central banks may adopt more accommodating monetary policy and reduce benchmark interest rates.

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 increases in unit volumes. We may also reduce selling prices

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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 equipment including machine tools and industrial lasers, and competition from other fiber laser manufacturers.

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. 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 laser and amplifier sources, depending on 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; and finally,

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

•Our gross margin from products on new manufacturing lines can be lower due to production inefficiencies 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 $110.5 million, $110.1 million and $123.1 million in capital expenditures in 2023, 2022 and 2021, 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 $31.2 million, $26.9 million and $1.4 million in proceeds from the sale of property, plant and equipment in 2023, 2022 and 2021, 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 levels, 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

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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.

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 $45.5 million, $128.0 million and $34.3 million in 2023, 2022 and 2021, respectively. 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, the Company has 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 due to acquisitions, litigation and project related consulting expenses.

Research and development expenses. In 2023 and 2022 our research and development expenses decreased primarily due to a reduction of expenses associated with our telecommunications transceiver business, which was sold in August 2022. Going forward, 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. As part of the telecommunications transmission product line divestiture mentioned above, we will no longer be incurring research and development expenses attributed to the development of telecommunications transmission products.

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. We are evaluating the sale of certain U.S.-based assets, including land and building. If the estimated sales value of any of these assets is below carrying value, then we may need to record an asset impairment charge when they are classified as held-for-sale. We have long-lived assets in Belarus with a carrying value of $31.8 million. If sanctions increase or if the geopolitical situation changes such that we can no longer use Belarus as a source of supply for our laser cabinets and other mechanical components, we may need to evaluate those assets for impairment, which may result in impairment charges.

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., Germany, Russia, and Belarus) also affects our costs and earnings. Certain currencies experiencing significant exchange rate fluctuations like the euro, the Russian ruble, Chinese yuan and the 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. The Organization for Economic Cooperation & Development (OECD) has proposed a two-pillared plan for a revised international tax system. Pillar 1 proposes to reallocate taxing rights among the jurisdictions in which in-scope multinational corporations operate. Based on the current guidance, we do not meet the revenue threshold for Pillar 1 and thus

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do not expect any tax impact from implementation. Pillar 2 proposes to assess a 15% minimum tax on the earnings of in-scope multinational corporations on a country-by-country basis. Numerous countries have indicated their intent to adopt the proposal and are drafting legislation to implement the Pillar 2 model rules with a subset of the rules becoming effective January 1, 2024, and the remaining rules becoming effective January 1, 2025, or in later periods. The OECD continues to release additional guidance on the two-pillar framework and it is uncertain if these proposals will be enacted into law in the U.S. or other countries in which we operate. We are continuing to evaluate the impact of the proposed and enacted legislative changes as new information becomes available. It is possible that such proposals as adopted by countries may adversely affect our provision for income taxes. Based on the current drafts of the Pillar 2 proposals, we do not anticipate this will have a material impact on our tax provision or effective tax rate in 2024.

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%, 15% and 19% in 2023, 2022 and 2021, respectively. One of our customers accounted for 14% of our net accounts receivable as of both December 31, 2023 and 2022.We seek to add new customers and to 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 fiber lasers or amplifiers. If any of our significant customers were to substantially reduce 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.

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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. We recorded provisions for slow-moving, obsolete or excess inventory, and inventory related charges totaling $45.5 million, $128.0 million and $34.3 million in 2023, 2022 and 2021, respectively. 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 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 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. In 2021, as sales increased due to recovery from the impact of the Covid-19 pandemic and other factors, our provisions for slow-moving, excess and obsolete inventory reserves decreased.

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.

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. The fair values 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 flow 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. We recorded long-lived asset impairment charge of $1.2 million, $79.9 million, and nil in 2023, 2022 and 2021, respectively. In the fourth quarter of 2022, we performed a review of the estimated fair value of the long-lived assets in Russia in light of new sanctions and recorded long-lived asset impairment of $79.0 million as a result of that review.

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.

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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, 2023, we had $17.2 million of unrecognized tax benefits, excluding interest and penalties, recorded in other long-term liabilities and deferred income taxes. This tax liability increased by $3.0 million for tax positions taken in the current year offset by reductions of $1.3 million for changes in prior period positions.

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:

Gain on divestiture and sale of asset — — (31,846) (2.2) — —

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

Net income attributable to IPG Photonics Corporation per common share:

Weighted average common shares outstanding:

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Comparison of Year Ended December 31, 2023 to Year Ended December 31, 2022

Net sales. Net sales decreased by $142.1 million, or 9.9%, to $1,287.4 million in 2023 from $1,429.5 million in 2022. The table below sets forth sales by application:

Year Ended December 31,

(In thousands, except for percentages)

Sales by Application % of Total % of Total

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 due to lower sales of high power lasers, medium power lasers, pulsed lasers, and QCW lasers, partially offset by higher sales of laser and non-laser systems and other laser products.

•The decrease in high power CW laser sales was due to lower sales for cutting applications as a result of soft industrial demand in China and Europe and increased competition in China.

•The decrease in medium power CW laser sales related to a decrease in demand for cutting applications, partially offset by an increase in additive manufacturing applications.

•Pulsed laser sales, including high power pulsed lasers, decreased due to decreases in e-mobility foil cutting applications, marking and engraving applications and solar cell manufacturing applications, partially offset by growth in sales for cleaning and ablation applications.

•QCW laser sales decreased due to lower demand in fine processing for consumer electronics applications.

•Laser and non-laser systems sales benefited from higher demand for LightWELD.

•Other revenue for materials processing increased due to higher sales of accessories and parts and service.

Other Applications

Sales from other applications decreased mainly due to decreased sales for communications products as a result of the business divestiture in the third quarter of 2022, partially offset by increased demand for lasers used in medical procedures and advanced applications.

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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 $128.4 million, or 14.7%, to $745.7 million in 2023 from $874.1 million in 2022. Our gross margin increased to 42.1% in 2023 from 38.9% in 2022. Gross margin increased compared to the prior year primarily because we did not record any additional inventory provisions and other charges related to our Russian operations, which were $74.1 million and reduced gross margin by 5.2% in 2022. This improvement to gross margin was partially offset by an increase in cost of product sold. As we expand production capacity in the U.S., Germany, Italy and Poland to replace dependency on our Russian and Belarus operations, we incurred higher manufacturing costs as a percentage of sales due to higher compensation costs, lower yields and manufacturing inefficiencies and higher scrap expense as we ramped up manufacturing capacity in existing and new locations. Expenses related to provisions for excess or obsolete inventory and other valuation adjustments decreased by $82.5 million to $45.5 million, or 3.5% of sales, for the year ended December 31, 2023, as compared to $128.0 million, or 9.0% of sales, for the year ended December 31, 2022.

Sales and marketing expense. Sales and marketing expense increased by $9.1 million, or 11.9%, to $85.7 million in 2023 from $76.6 million in 2022. This change was primarily a result of an increase of $7.0 million in personnel and related costs, driven by an increase in sales and marketing department headcount. As a percentage of sales, sales and marketing expense was 6.7% and 5.3% of sales in 2023 and 2022, respectively.

Research and development expense. Research and development expense decreased by $17.4 million, or 15.0%, to $98.7 million in 2023 from $116.1 million in 2022. This change was primarily a result of a decrease of $5.1 million in personnel and related costs, a decrease of $5.6 million in depreciation and amortization expenses, and a decrease of $2.0 million in materials and other R&D expense. The decreases were primarily a result of the divestiture of telecommunications transmission product line in August 2022, and the impairment of fixed assets related to our Russian operation in 2022. As a percentage of sales, research and development expense decreased to 7.7% in 2023 from 8.1% in 2022. We expect to continue to invest in research and development efforts for our continuing products and increase expenses in whole dollars.

General and administrative expense. General and administrative expense decreased by $5.6 million, or 4.3%, to $125.7 million in 2023 from $131.3 million in 2022. This change was primarily a result of a decrease of $3.9 million in depreciation expense as a result of disposing our corporate aircraft and impairing our Russia long-lived assets in 2022, and a decrease of $2.1 million in consultants, partially offset by an increase of $3.7 million in personnel and related costs. As a percentage of sales, general and administrative expense increased to 9.8% in 2023 from 9.2% in 2022.

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 2023 would have been $34.9 million higher, gross margin would have been $21.2 million higher and sales and marketing, research and development and general and administrative expenses would have been $4.9 million higher. These estimates assume constant exchange rates between fiscal year 2023 and fiscal year 2022 and are calculated using the average exchange rates for the twelve-month period ended December 31, 2022 for the respective currencies, which were US$1=Euro 0.95, US$1=Japanese yen 131, US$1=Chinese yuan 6.73 and US$1=Russian ruble 68.

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Impairment of long-lived assets. We recorded a non-cash long-lived asset impairment charge of $1.2 million in 2023 as compared to $79.9 million in 2022. The impairment of long-lived assets in 2023 was related to the right-of-use asset ("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. The long-lived asset impairment in 2022 was related to Russian operations.

Restructuring charges (recoveries), net We recorded a net restructuring recovery of $0.3 million in 2023 as compared to a restructuring charge of $9.7 million in 2022. In 2023, we substantially completed the restructuring program at our Russian subsidiary. As a result, we released $1.7 million that had been accrued in relation to restructuring expenses. The restructuring charges in 2022 are primarily related to restructuring costs in Russia. In addition, some restructuring charges related to the closure of our office in Lebanon which had supported the communications transmission business which we divested in the third quarter of 2022.

(Gain) loss on foreign exchange. We incurred a foreign exchange gain of $1.4 million in 2023 as compared to a loss of $4.1 million in 2022. The gain in 2023 was primarily attributable to depreciation of the Russian ruble, partially offset by losses from appreciation of the Euro and depreciation of the Chinese yuan as compared to the U.S. dollar.

Interest income, net. Interest income, net was $41.7 million in 2023 compared to $12.6 million in 2022. The change in interest income, net, was driven by an increase in yields on cash equivalents and short term investments that resulted in higher market interest rates as compared to prior year rates.

Provision for income taxes. Provision for income taxes was $56.0 million in 2023 compared to $72.6 million in 2022, representing an effective tax rate of 20.4% in 2023 and 39.6% in 2022. The decrease in tax expense was due primarily to discrete items. 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 (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 for $1.8 million for equity-based compensation deductions reflected in book income in excess of the deductions allowed for tax purposes. Discrete adjustments in 2022 resulted in a $23.2 million increase in tax expense, which includes (i) $35.8 million increase in the valuation allowance primarily related to deferred tax assets in our Russian subsidiary which were provided in conjunction with the restructuring and other charges discussed above and (ii) $2.7 million for equity-based compensation deductions reflected in book income in excess of the deductions allowed for tax purposes. These detriments were partly offset by (i) $10.1 million for the acceptance of amended returns related to incentives offered for capital investment; (ii) $3.9 million related to a reversal of tax reserves primarily due to the expiry of the statute of limitations for the year in which the reserve was established.

Net income attributed to IPG Photonics Corporation. Net income attributable to IPG Photonics Corporation increased by $109.0 million to $218.9 million in 2023 from $109.9 million in 2022. Net income attributable to IPG Photonics Corporation as a percentage of our net sales increased by 9.4% to 17.0% in 2023 from 7.6% in 2022 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, to assess acquisition opportunities and to repurchase shares of our stock in accordance with our repurchase program. 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 including any ongoing impact of the COVID-19 pandemic on certain global or regional economies, global or regional recessions, 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 continuing market acceptance of our products. As of December 31, 2023, 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.

Included in cash and cash equivalents are $76.4 million of cash and cash equivalents located in Russia, and $5.5 million of cash and cash equivalents located in Belarus, as of December 31, 2023. Cash and cash equivalents in Russia are subject to capital controls that prevent repatriation by dividend or distribution of capital. There are currently no restrictions on our ability to use cash and cash equivalents in Russia for operating purposes including converting cash to foreign currency for the payment of goods received from vendors outside of Russia. The Russian operations are self-funding. Approximately 6% of our consolidated working capital including cash, cash equivalents and short-term investments is located in Russia. We are making no new investments in Russia.

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The following table presents our principal sources of liquidity:

As of December 31,

(In thousands)

Unused credit lines and overdraft facilities 78,506 125,965

Short-term investments at December 31, 2023 consist of liquid investments including U.S. Treasury and agency obligations, corporate bonds, commercial paper, 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, 2023:

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, 2023, there were no amounts drawn on this line, however, there were $2.5 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, 2023, there were no amounts drawn on this line, however, there were $1.2 million of guarantees issued against the line which reduces total availability.

(3) At December 31, 2023, there were no drawings. This facility renews annually.

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, 2023.

See Note 11, "Financing Arrangements" in the notes to the consolidated financial statements for further information about our facilities and term debt.

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The following table summarizes our material cash commitments at December 31, 2023 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 (used in) provided by investing activities (237,554) 296,952

Operating activities. Net cash provided by operating activities increased by $83.4 million to $296.0 million in 2023 from $212.6 million in 2022 primarily due to a decrease in cash used 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 increase in cash flow from operating activities in 2023 primarily resulted from:

•an increase in cash provided by inventory as we moderated investment in safety stock related to supply chain disruptions for third party electronic parts and components internally manufactured by our factory in Russia; and

•an increase in cash provided by other taxes payable driven by the timing of estimated tax payments made and refunds received from filing tax returns.

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

•a decrease in cash provided by net income after adjusting for non-cash operating activities, mainly due to lower sales in 2023;

•an increase in cash used by accounts receivable, including an increase in days sales outstanding;

•an increase in cash used by prepaid expenses and other assets; and

•an increase in cash used by accounts payable due to timing of payments.

Investing activities. Net cash used in investing activities was $237.6 million in 2023 as compared to cash provided by investing activities of $297.0 million in 2022. 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 cash used for property, plant and equipment, partially offset by $31.2 million of proceeds from the sale of property, plant and equipment. The cash provided by investing activities in 2022 primarily related to $329.3 million of net proceeds from short-term investments, $52.9 million of proceeds received from the divestiture of the telecommunications transmission product lines, net of cash sold, and $26.9 million of proceeds from the sale of property, plant and equipment mainly from the sale of corporate aircraft; partially offset by $110.1 million of cash used for property, plant and equipment.

In 2024, we expect to incur approximately $120.0 million to $130.0 million in capital expenditures net of asset divestitures. Capital expenditures include investments in property, facilities and equipment to add capacity worldwide to support anticipated revenue growth, increase vertical integration, increase redundant manufacturing capacity for critical components and enhance research and development capabilities. The timing and extent of any capital expenditures in and between periods can have a significant effect on our cash flow. If we obtain financing for certain projects, our cash expenditures would be reduced in the year of expenditure. Many of the capital expenditure projects that we undertake have long lead times

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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 $236.4 million and $514.5 million in 2023 and 2022, respectively. 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. The cash used in financing activities in 2022 was primarily related to the purchase of $499.5 million of treasury stock, $18.1 million of principal payments on our long-term borrowings, the purchase of non-controlling interests of $2.5 million related to the divestiture of the telecommunications transmission product lines; partially offset by net proceeds of $5.6 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, corporate bonds, U.S. government and agency securities and term deposits. 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, the Russian ruble, 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 2023 we incurred a gain on foreign exchange transactions of $1.4 million as compared to a loss of $4.1 million in 2022. As our Russia subsidiary has net U.S. dollar denominated assets, the depreciation of the Russian ruble contributed to most of the foreign exchange gain in 2023, partially offset by the loss from the appreciation of the Euro as our German subsidiary has net U.S. dollar denominated assets, and the loss from the depreciation of the Chinese yuan as our Chinese subsidiary has net U.S. dollar denominated liability. 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, 2023, our material foreign currency exposure is net U.S. dollar denominated assets at subsidiaries where the Euro or the Russian ruble is the functional currency and U.S. dollar denominated liabilities where the Chinese yuan 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

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the net U.S. dollar asset balances as of December 31, 2023, would result in a foreign exchange gain of $1.9 million if the U.S. dollar appreciated and a $2.0 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 Ruble applied to the net U.S. dollar asset balances as of December 31, 2023, would result in a foreign exchange gain of $0.2 million if the U.S. dollar appreciated and a $0.2 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, 2023, would result in a foreign exchange loss of $1.1 million if the U.S. dollar appreciated and a $1.1 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 the COVID-19 pandemic, sanctions on the Russian government and 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 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, 2023. 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.

Management's Annual Report on Internal Control Over Financial Reporting

Our management, including our Chief Executive Officer and Chief Financial Officer, is responsible for establishing and maintaining adequate internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the Company and its subsidiaries. Internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. Our management conducted an assessment of the effectiveness of our internal control over financial reporting as of the Evaluation Date based on criteria established in COSO utilizing the Updated Framework issued in 2013. Based on this assessment, our management concluded that, as of the Evaluation Date, our internal control over financial reporting was effective.

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Our independent registered public accounting firm, Deloitte & Touche LLP, has audited our internal control over financial reporting, as stated in their report below.

Changes in Internal Controls

There was no change in our internal control over financial reporting (as defined in Rule 13a-15(f) under the Exchange Act) that occurred during the last fiscal quarter that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

Limitations on Effectiveness of Controls

Our management, including our Chief Executive Officer and Chief Financial Officer, does not expect that the disclosure controls and procedures or internal control over financial reporting will prevent or detect all error and all fraud. A control system, no matter how well designed and operated, can provide only reasonable, not absolute, assurance that the objectives of the control system are met. Further, the design of a control system must reflect the fact that there are resource constraints, and the benefits of controls must be considered relative to their costs. Due to the inherent limitations in all control systems, no evaluation of controls can provide absolute assurance that all control issues, errors and instances of fraud, if any, within the company have been or will be detected.

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REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the shareholders and the Board of Directors of

IPG Photonics Corporation

Marlborough, Massachusetts

Opinion on Internal Control over Financial Reporting

We have audited the internal control over financial reporting of IPG Photonics Corporation and subsidiaries (the “Company”) as of December 31, 2023, based on criteria established in Internal Control — Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO). In our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2023, based on criteria established in Internal Control — Integrated Framework (2013) issued by COSO.

We have also audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the consolidated financial statements as of and for the year ended December 31, 2023, of the Company and our report dated February 21, 2024, expressed an unqualified opinion on those financial statements.

Basis for Opinion

The Company’s management is responsible for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting, included in the accompanying Management's Annual Report on Internal Control Over Financial Reporting. Our responsibility is to express an opinion on the Company’s internal control over financial reporting based on our audit. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audit in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects. Our audit included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, testing and evaluating the design and operating effectiveness of internal control based on the assessed risk, and performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion.

Definition and Limitations of Internal Control over Financial Reporting

A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company’s internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

/s/ Deloitte & Touche LLP

Boston, Massachusetts

February 21, 2024

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ITEM 9B. OTHER INFORMATION

None of our directors or executive officers adopted or terminated a Rule 10b5-1 trading arrangement or adopted or terminated a non-Rule 10b5-1 trading arrangement (as defined in Item 408(c) of Regulation S-K) during the quarter ended December 31, 2023.

ITEM 9C. DISCLOSURE REGARDING FOREIGN JURISDICTIONS THAT PREVENT INSPECTIONS

Not applicable.

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PART III

ITEM 10. DIRECTORS, EXECUTIVE OFFICERS AND CORPORATE GOVERNANCE

Certain of the information required hereunder is incorporated herein by reference to our definitive Proxy Statement to be filed pursuant to Regulation 14A, which Proxy Statement is anticipated to be filed with the SEC within 120 days after December 31, 2023. Pursuant to General Instruction G(3) of Form 10-K, additional information required hereunder relating to our executive officers is contained in Part I of this Annual Report on Form 10-K under the caption "Executive Officers of the Registrant."

ITEM 11. EXECUTIVE COMPENSATION

The information required hereunder is incorporated herein by reference to our definitive Proxy Statement to be filed pursuant to Regulation 14A, which Proxy Statement is anticipated to be filed with the SEC within 120 days after December 31, 2023.

ITEM 12. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT AND RELATED STOCKHOLDER MATTERS

The information required hereunder is incorporated herein by reference to our definitive Proxy Statement to be filed pursuant to Regulation 14A, which Proxy Statement is anticipated to be filed with the SEC within 120 days after December 31, 2023, with the exception of the information regarding securities authorized for issuance under our equity compensation plans, which is set forth below.

Equity Compensation Plans Not Approved by Security Holders — —

(1)As of December 31, 2023, there were 3,107,336 shares available for future issuance under the 2006 Incentive Compensation Plan and 140,176 shares available for future issuance under the employee stock purchase plan.

ITEM 13. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS, AND DIRECTOR INDEPENDENCE

The information required hereunder is incorporated herein by reference to our definitive Proxy Statement to be filed pursuant to Regulation 14A, which Proxy Statement is anticipated to be filed with the SEC within 120 days after December 31, 2023.

ITEM 14. PRINCIPAL ACCOUNTING FEES AND SERVICES

The information required hereunder is incorporated herein by reference to our definitive Proxy Statement to be filed pursuant to Regulation 14A, which Proxy Statement is anticipated to be filed with the SEC within 120 days after December 31, 2023.

PART IV

ITEM 15. EXHIBITS AND FINANCIAL STATEMENT SCHEDULES

a.The following documents are filed as part of this Annual Report on Form 10-K:

1.Financial Statements.

See Index to Financial Statements on page F-1.

2.Financial Statement Schedules.

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All schedules are omitted because they are not applicable or the required information is shown on the financial statements or notes thereto.

3.Exhibits.

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Exhibit Number Description

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Exhibit Number Description

21.1* List of Subsidiaries

23.1* Consent of Deloitte & Touche LLP

97* IPG Photonics Corporation Incentive Based Compensation Recoupment Policy

101.INS* Inline XBRL Instance Document

101.SCH* Inline XBRL Taxonomy Extension Schema

101.CAL* Inline XBRL Taxonomy Extension Calculation Linkbase

101.DEF* Inline XBRL Taxonomy Definition Linkbase

101.LAB* Inline XBRL Taxonomy Extension Label Linkbase

101.PRE* Inline XBRL Taxonomy Extension Presentation Linkbase

* Filed herewith.

**Furnished herewith. The certification attached as Exhibit 32.1 that accompanies this Annual Report on Form 10-K is deemed furnished and not filed with the SEC and is not to be incorporated by reference into any filing of the Company under the Securities Act or the Exchange Act, whether made before or after the date of this Annual Report on Form 10-K, irrespective of any general incorporation.

† Identifies management contract or compensatory plans or arrangements required to be filed as an exhibit.

b.Exhibits.

See (a)(3) above.

c.Additional Financial Statement Schedules.

All schedules are omitted because they are not applicable or the required information is shown on the financial statements or notes thereto.

ITEM 16. FORM 10-K SUMMARY

None.

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SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized, on February 21, 2024.

IPG PHOTONICS CORPORATION

By: /s/ Eugene A. Scherbakov

Eugene A. Scherbakov Chief Executive Officer

KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature appears below constitutes and appoints Eugene A. Scherbakov and Angelo P. Lopresti, jointly and severally, his or her attorneys-in-fact, each with the power of substitution, for him or her in any and all capacities, to sign any amendments to this Annual Report on Form 10-K, and to file the same, with exhibits thereto and other documents in connection therewith, with the Securities and Exchange Commission, hereby ratifying and confirming all that each of said attorneys-in-fact, or his substitute or substitutes, may do or cause to be done by virtue hereof.

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the Registrant and in the capacities and on the dates indicated.

Signature Title Date

/s/ Gregory Beecher Gregory Beecher Director February 21, 2024

/s/ Michael Child Michael Child Director February 21, 2024

/s/ Jeanmarie Desmond Jeanmarie Desmond Director February 21, 2024

/s/ Gregory Dougherty Gregory Dougherty Director February 21, 2024

/s/ Kolleen Kennedy Kolleen Kennedy Director February 21, 2024

/s/ Eric Meurice Eric Meurice Director February 21, 2024

/s/ Natalia Pavlova Natalia Pavlova Director February 21, 2024

/s/ Agnes Tang Agnes Tang Director February 21, 2024

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INDEX TO FINANCIAL STATEMENTS

Report of Independent Registered Public Accounting Firm (PCAOB ID: 34) F-2

Consolidated Balance Sheets as of December 31, 2023 and 2022 F-4

Notes to Consolidated Financial Statements F-9

F-1

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REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the shareholders and the Board of Directors of

IPG Photonics Corporation

Marlborough, Massachusetts

Opinion on the Financial Statements

We have audited the accompanying consolidated balance sheets of IPG Photonics Corporation and subsidiaries (the "Company") as of December 31, 2023 and 2022, the related consolidated statements of income, comprehensive income, equity, and cash flows for each of the three years in the period ended December 31, 2023, and the related notes (collectively referred to as the "financial statements"). In our opinion, the financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 2023 and 2022, and the results of its operations and its cash flows for each of the three years in the period ended December 31, 2023, in conformity with accounting principles generally accepted in the United States of America.

We have also audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the Company's internal control over financial reporting as of December 31, 2023, based on criteria established in Internal Control - Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission and our report dated February 21, 2024, expressed an unqualified opinion on the Company's internal control over financial reporting.

Basis for Opinion

These financial statements are the responsibility of the Company's management. Our responsibility is to express an opinion on the Company's financial statements based on our audits. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether due to error or fraud. Our audits included performing procedures to assess the risks of material misstatement of the financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the financial statements. We believe that our audits provide a reasonable basis for our opinion.

Critical Audit Matter

The critical audit matter communicated below is a matter arising from the current-period audit of the financial statements that was communicated or required to be communicated to the audit committee and that (1) relates to accounts or disclosures that are material to the financial statements and (2) involved our especially challenging, subjective, or complex judgments. The communication of a critical audit matter does not alter in any way our opinion on the financial statements, taken as a whole, and we are not, by communicating the critical audit matter below, providing a separate opinion on the critical audit matter or on the accounts or disclosures to which it relates.

Excess or Obsolete Inventory Reserve: Refer to Notes 1 and 4 to the financial statements

Critical Audit Matter Description

The Company evaluates inventory each reporting period for excess quantities and obsolescence, establishing reserves when necessary based upon historic usage, estimated future usage and age. Once recorded, these reserves are considered permanent adjustments to the carrying value of inventory. As of December 31, 2023, the Company has inventories of $453.9 million, net of excess quantities and obsolescence reserves.

We identified the reserve for excess quantities and obsolete inventory as a critical audit matter because of the significant estimates and assumptions management makes to quantify the reserve, including the determination of expected demand, especially when considering the vertically integrated nature of the Company as well as parts subject to technological obsolescence. This required a high degree of auditor judgment and an increased extent of effort when performing audit procedures to evaluate the policy and the reasonableness of assumptions including expected demand.

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How the Critical Audit Matter Was Addressed in the Audit

Our audit procedures related to management’s judgments underlying the calculation of excess or obsolete inventory reserve, included the following, among others:

•We tested the effectiveness of controls over inventory, including those over the estimation of reserves for excess quantities and obsolescence.

•We evaluated the reasonableness of the Company's excess and obsolete reserve policy, considering historical experience and the underlying assumptions.

•We tested the calculation of the excess and obsolete reserve pursuant to the Company’s policy, including the completeness and accuracy of the data used in the calculation.

•For a sample of inventory parts, we evaluated management’s ability to estimate future demand by comparing actual inventory usage to estimates made in prior years.

•We considered the existence of contradictory evidence based on consideration of internal communication to management and the board of directors, Company press releases, and analysts’ reports, as well as any changes within the business.

/s/ Deloitte & Touche LLP

Boston, Massachusetts

February 21, 2024

We have served as the Company's auditor since 1999.

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IPG PHOTONICS CORPORATION

CONSOLIDATED BALANCE SHEETS

December 31,

(In thousands, except shareand per share data)

ASSETS

Current assets:

Prepaid expenses and other current assets 38,208 47,047

LIABILITIES AND EQUITY

Current liabilities:

Current portion of long-term debt $ — $ 16,031

Other long-term liabilities and deferred income taxes 68,652 83,274

Commitments and contingencies (Note 14)

IPG Photonics Corporation equity:

Total IPG Photonics Corporation stockholders' equity 2,415,385 2,385,360

See notes to consolidated financial statements.

F-4

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IPG PHOTONICS CORPORATION

CONSOLIDATED STATEMENTS OF INCOME

Year Ended December 31,

(In thousands, except per share data)

Operating expenses:

Gain on divestiture and sale of asset — (31,846) —

Impairment of long-lived assets 1,237 79,949 —

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

Other income (expense), net:

Less: net income (loss) attributable to non-controlling interests — 853 (550)

Net income attributable to IPG Photonics Corporation per common share:

Weighted average shares outstanding:

See notes to consolidated financial statements.

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IPG PHOTONICS CORPORATION

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

Year Ended December 31,

(In thousands)

Other comprehensive (loss) income, net of tax:

Foreign currency translation adjustments and other (7,854) (14,838) (44,267)

Unrealized (loss) gain on derivatives (152) 336 278

See notes to consolidated financial statements.

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IPG PHOTONICS CORPORATION

CONSOLIDATED STATEMENTS OF EQUITY

Year Ended December 31,

(In thousands, except share data) Shares Amount Shares Amount

Stock-based compensation — — — — 37,864 — — — 37,864

Unrealized gain on derivatives, net of tax — — — — — — 278 — 278

Stock-based compensation — — — — 38,302 — — — 38,302

Purchase of non-controlling interests — — — — (937) — — (1,563) (2,500)

Unrealized gain on derivatives, net of tax — — — — — — 336 — 336

Stock-based compensation — — — — 39,502 — — — 39,502

Foreign currency translation adjustments and other — — — — — — (7,854) — (7,854)

Unrealized loss on derivatives, net of tax — — — — — — (152) — (152)

See notes to consolidated financial statements.

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IPG PHOTONICS CORPORATION

CONSOLIDATED STATEMENTS OF CASH FLOWS

Year Ended December 31,

(In thousands)

Cash flows from operating activities:

Unrealized gain on foreign currency transactions (4,334) (592) (8,560)

Gain on divestiture and sales of asset — (31,846) —

Amortization of premium/discount on investments (25,102) (4,557) 2,502

Cash flows from investing activities:

Proceeds from sales of property, plant and equipment 31,241 26,862 1,409

Acquisitions of businesses, net of cash acquired — (2,000) —

Proceeds from divestiture, net of cash sold — 52,941 —

Cash flows from financing activities:

Payment of purchase price holdback from business combination — — (2,625)

Purchase of non-controlling interests — (2,500) —

Supplemental disclosure of cash flow information:

Non-cash transactions:

Inventory transferred to machinery and equipment $ 2,767 $ 4,172 $ 3,701

See notes to consolidated financial statements.

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IPG PHOTONICS CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(In thousands, except share and per share data)

1. NATURE OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Nature of Business — IPG Photonics Corporation (the "Company" or "IPG") develops, manufactures and sells high-performance fiber lasers, fiber amplifiers, and diode lasers that are used for diverse applications, primarily in materials processing. The Company was incorporated as a Delaware corporation in December 1998. Its world headquarters is located in Marlborough, Massachusetts. It also has facilities and sales offices elsewhere in North and South America, Europe and Asia.

Russian Operations — In October 2022, the European Union (“EU”) issued sanctions that restricted the Company’s Russian subsidiary from supplying laser components to its other manufacturing facilities beginning in January 2023. These EU sanctions, coupled with increased tariffs in the United States on items imported from Russia, negatively affected what had been the Russian subsidiary’s most significant source of revenue, which was selling components and finished goods to other IPG subsidiaries. As a result of these changes in business conditions in Russia at the end of 2022, the Company completed an impairment analysis of assets in Russia during the fourth quarter of 2022 and recorded charges in the accompanying Consolidated Statement of Income. In 2022, the Company recorded $74,055 of inventory provision and related charges included in Cost of sales, $79,030 of impairment of long-lived asset charges included in Impairment of long-lived assets and a $35,518 valuation allowance for deferred tax assets included in provision for income taxes. The long-lived asset impairment charge was based on a probability-weighted average of valuations using the discounted cash flow method under the income approach, the guideline public company method and the guideline transaction method under the market approach, to estimate the fair value of the long-lived assets in Russia. Further, in 2022 the Company implemented a restructuring program at its Russian subsidiary and recorded restructuring charges of $8,542 for personnel-related restructuring charges and other post employment benefits included in Restructuring charges (recoveries), net. In 2023, the Company substantially completed the restructuring program. As a result, the remaining restructuring accrual was substantially recovered. This resulted in net restructuring recoveries of $288 for the year ended December 31, 2023.

Principles of Consolidation — The accompanying financial statements include the accounts of the Company and its majority-owned subsidiaries. All intercompany accounts and transactions have been eliminated.

Use of Estimates — The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenue and expenses during the reporting period. The Company bases its estimates on historical experience and on various other assumptions that are believed to be reasonable under the circumstances. Actual results could differ from those estimates.

Foreign Currency — The financial information for entities outside the United States is measured using local currencies as the functional currency. Assets and liabilities are translated into U.S. dollars at the exchange rate in effect on the respective balance sheet dates. Income and expenses are translated into U.S. dollars based on the average rate of exchange for the corresponding period. Exchange rate differences resulting from translation adjustments are accounted for directly as a component of accumulated other comprehensive (loss) income.

Cash and Cash Equivalents and Short-Term Investments — Cash and cash equivalents consist primarily of highly liquid investments, such as money market fund deposits, term deposits, corporate bonds, and commercial paper with maturities of three months or less at the date of purchase with insignificant interest rate risk. Short-term investments consist of liquid investments including commercial paper, corporate bonds, U.S. government and government agency notes and term deposits with original maturities of greater than three months but less than one year with insignificant interest rate risk. Fixed-term securities included in cash equivalents and short-term investments are held-to-maturity and accounted for at amortized cost.

Accounts Receivable and Allowance for Doubtful Accounts — Accounts receivable include $17,313 and $12,977 of bank acceptance drafts at December 31, 2023 and 2022, respectively. Bank acceptance drafts are bank guarantees of payment on specified dates. The weighted average maturity of these bank acceptance drafts is approximately 102 days. The Company maintains an allowance for doubtful accounts to provide for the estimated amount of accounts receivable that will not be collected. The allowance is based upon an estimate of expected credit losses over the life of outstanding receivables. The estimate involves an assessment of customer creditworthiness, historical payment experience, an assumption of future expected credit losses, and the age of outstanding receivables.

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IPG PHOTONICS CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(In thousands, except share and per share data)

Activity related to the allowance for doubtful accounts was as follows:

Provision for bad debts, net of recoveries 36 712 434

Uncollectible accounts written off (840) (125) (437)

Foreign currency translation (72) (56) (45)

Inventories — Inventories are stated at the lower of cost and net realizable value on a first-in, first-out basis. Inventories include parts and components that may be specialized in nature and subject to obsolescence. The Company periodically reviews the quantities and carrying values of inventories to assess whether the inventories are recoverable. The costs associated with provisions for excess quantities, technological obsolescence, or scrap related to out of specification components are charged to cost of sales as incurred.

Goodwill — Goodwill is the amount by which the cost of the acquired net assets in a business acquisition exceeded the fair values of the net identifiable assets on the date of purchase. Goodwill is assessed for impairment at least annually, on a reporting unit basis, or more frequently when events and circumstances occur indicating that the recorded goodwill may be impaired. The process of evaluating the potential impairment of goodwill is subjective and requires significant judgment at many points during the analysis. If the carrying value of a reporting unit exceeds its fair value, the implied fair value of goodwill is compared with the carrying value of goodwill. If the carrying value of goodwill exceeds the implied fair value, an impairment loss is recorded in an amount equal to that excess. The results of the goodwill assessments for the years ended December 31, 2023 and 2022 are discussed in Note 7, "Goodwill and Intangible Assets".

Intangible Assets — Intangible assets result from the Company's various business acquisitions. Intangible assets are reported at cost, less accumulated amortization, and are amortized on a straight-line basis either over their estimated useful lives of one year to thirteen years or over the period the economic benefits of the intangible asset are consumed.

Property, Plant and Equipment — Property, plant and equipment are stated at cost, less accumulated depreciation. Depreciation is determined using the straight-line method based on the estimated useful lives of the related assets. In the case of leasehold improvements, the estimated useful lives of the related assets do not exceed the remaining terms of the corresponding leases. The following table presents the assigned economic useful lives of property, plant and equipment:

Category Economic Useful Life

Buildings 20-30 years

Machinery and equipment 5-7 years

Office furniture and fixtures 5-7 years

Expenditures for maintenance and repairs are charged to operating expenses when they are incurred.

Long-Lived Assets — Long-lived assets, which consist primarily of property, plant and equipment and identifiable intangible assets, are reviewed by management for impairment whenever events or changes in circumstances indicate that the carrying amount may not be recoverable. When undiscounted expected future cash flows are less than the carrying value, an impairment loss is recorded equal to the amount by which the carrying value exceeds the fair value of assets. The impact of the long-lived assets impairment for the years ended December 31, 2023, and 2022 are discussed in Note 8, "Property, Plant and Equipment" and Note 13, "Leases".

Included in other long-term assets is certain demonstration equipment. The demonstration equipment is amortized over the respective estimated economic lives, generally 3 years. The carrying value of the demonstration equipment totaled $3,726 and $3,686 at December 31, 2023 and 2022, respectively. Amortization expense of demonstration equipment for the years ended December 31, 2023, 2022 and 2021, was $3,480, $2,387 and $3,596, respectively.

Authorized Capital — The Company has authorized capital stock consisting of 175,000,000 shares of common stock, par value $0.0001 per share, and 5,000,000 shares of preferred stock, par value $0.0001 per share. There are no shares of preferred stock outstanding as of December 31, 2023.

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IPG PHOTONICS CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(In thousands, except share and per share data)

Revenue Recognition — Revenue is recognized when transfer of control to the customer occurs in an amount reflecting the consideration that the Company expects to be entitled. In order to achieve this core principle, the Company applies the following five step approach: (1) identify the contract with a customer, (2) identify the performance obligations in the contract, (3) determine the transaction price, (4) allocate the transaction price to the performance obligations in the contract, and (5) recognize revenue when a performance obligation is satisfied.

The Company considers customer purchase orders, which in some cases are governed by master sales agreements, to be contracts with a customer. As part of its consideration of the contract, the Company evaluates certain factors including the customer's ability to pay (or credit risk). For each contract, the Company considers the promise to transfer products, each of which is identified as a distinct performance obligation. In determining the transaction price, the Company evaluates whether the price is subject to refund or adjustment to determine the net consideration to which the Company expects to be entitled. As the Company's standard payment terms are less than one year, the Company has elected the practical expedient under ASC 606-10-32-18 to not assess whether a contract has a significant financing component. The Company allocates the transaction price to each distinct product based on its relative standalone selling price. Revenue is recognized when control of the product is transferred to the customer (i.e., when the Company's performance obligation is satisfied), which typically occurs at shipment but which can occur over time for certain of the Company's systems contracts.

The Company often receives orders with the customer's schedule of delivery dates for products that may extend across several reporting periods. The Company allocates the transaction price of the contract to each delivery based on the product standalone selling price. The Company invoices for each scheduled delivery upon shipment and recognizes revenues for such delivery at that point, when transfer of control has occurred. As scheduled delivery dates are generally within one year, under the optional exemption provided by ASC 606-10-50-14 revenues allocated to future shipments of partially completed contracts are not disclosed.

Rights of return are not generally included in customer contracts. Accordingly, upon application of steps one through five above, product revenue is recognized upon shipment and transfer of control. Returns are infrequent and are recorded as a reduction of revenue.

In certain subsidiaries the Company provides sales commissions to sales representatives based on sales volume. The Company has determined that the incentive portion of its sales commissions qualify as contract costs. The Company has elected the practical expedient in ASC 340-40-25-4 to expense sales commissions when incurred as the amortization period of the asset that would otherwise have been recognized is one year or less.

Revenue Recognition at a Point in Time —Revenues recognized at a point in time consist primarily of product, installation and service sales. The Company sells products to original equipment manufacturers ("OEMs") that supply materials processing laser systems, communications systems, medical laser systems and other laser systems for advanced applications to end users. The Company also sells products to end users that use IPG products directly to build their own systems, which incorporate or use IPG products as an energy or light source. The Company recognizes revenue for laser and spare part sales following the transfer of control of such products to the customer, which typically occurs upon shipment or delivery depending on the terms of the underlying contracts. Installation revenue is recognized upon completion of the installation service, which typically occurs within 90 days of delivery. When sales contracts contain multiple performance obligations, such as the shipment or delivery of products and installation, the Company allocates the transaction price to each performance obligation identified in the contract based on relative standalone selling prices and recognizes the related revenue as control of each individual product or service is transferred to the customer, in satisfaction of the corresponding performance obligations.

Revenue Recognition over Time — Warranties are limited and provide that the product meets specifications and is free from defects in materials and workmanship. The Company also offers extended warranty agreements, which extend the standard warranty periods. Extended warranties are sold separately from products and represent a distinct performance obligation. Revenue related to the performance obligation for extended warranties is recognized over time as the customer simultaneously receives and consumes the benefits provided by the Company. The customer receives the assurance that the product will operate in accordance with agreed-upon specifications evenly during the extended warranty period regardless of whether they make a claim during that period, and therefore, revenue at time of sale is deferred and recognized over the time period of the extended warranty period.

The Company enters into contracts to sell customized large scale materials processing systems through its subsidiary Genesis Systems Group, LLC, for which revenue is generally recognized over time, depending on the terms of the contract. Recognizing revenue over time for these contracts is based on the Company’s judgment that the customized large scale

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IPG PHOTONICS CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(In thousands, except share and per share data)

materials processing systems do not have an alternative use and the Company has an enforceable right to payment for performance completed to date.

The determination of the revenue to be recognized in a given period for performance obligations over time is based on the input method. The Company generally uses the total cost-to-cost input method of progress because it best depicts the transfer of control to the customer that occurs as costs are incurred. Under the cost-to-cost method, the extent of progress towards completion is measured based on the proportion of costs incurred to date to the total estimated costs at completion of the performance obligation.

Customer Deposits and Deferred Revenue—When the Company receives consideration from a customer or such consideration is unconditionally due prior to transferring goods or services under the terms of a sales contract, the Company records customer deposits or deferred revenue, which represent contract liabilities. The Company recognizes deferred revenue as net sales after control of the goods or services has been transferred to the customer and all revenue recognition criteria are met.

Warranties — The Company typically provides one to five-year warranties on lasers and amplifiers. Most of the Company's sales offices provide support to customers in their respective geographic areas. The Company estimates the warranty accrual considering past claims experience, the number of units still covered by warranty and the average life of the remaining warranty period. The warranty accrual has generally been sufficient to cover product warranty repair and replacement costs.

Stock-based Compensation — The Company accounts for stock-based compensation expense using the fair value of the awards granted. The Company issues equity incentive awards in the form of time-based restricted stock units ("RSUs") and performance-based restricted stock units ("PSUs"). The fair value for RSUs is based on the closing share price of the Company's common stock on the date of grant. PSUs are aligned to specified performance targets such as financial metrics or the relative return of the Company's common stock compared to an index ("TSR PSUs"). The fair value of PSUs aligned to specified financial performance metrics is determined based on the number of units expected to vest upon achievement of the performance conditions. The fair value for PSUs aligned to the TSR is based on a Monte Carlo simulation model. The Company recognizes stock-based compensation as an expense on a straight-line basis, over the requisite service period. The Company accounts for forfeitures as they occur.

The Company has an employee stock purchase plan ("ESPP") offered to its U.S. and German employees. The Company uses the Black-Scholes model to calculate the purchase date fair value of the shares issued under the employee stock purchase plan and recognize expense related to shares purchased ratably over the offering period. The description of the Company's stock-based compensation plans and the assumptions it uses to calculate the fair value of stock-based compensation is described in Note 15, "Stock-based Compensation."

Advertising Expense — The cost of advertising is expensed as incurred. The Company conducts substantially all of its sales and marketing efforts through trade shows, professional and technical conferences, direct sales and the Company's website. The Company's advertising costs were not material for the periods presented.

Research and Development — Research and development costs are expensed as incurred.

Restructuring — The Company records charges associated with approved restructuring plans to reorganize operations, to remove redundant headcount and infrastructure associated with business acquisitions or to improve the efficiency of business processes. Restructuring charges can include severance costs to eliminate a specific number of positions, infrastructure charges to vacate facilities and consolidate operations and contract cancellation costs. The Company records restructuring charges when they are probable and estimable. The Company accrues for severance and other employee separation costs under these plans when the plan is communicated to employees and an amount per employee can be reasonably estimated either by the communicated terms, or by legal requirements, if applicable. The results of restructuring program implemented during the years ended December 31, 2023, and 2022 are discussed in Note 6, "Restructuring".

Income Taxes — Deferred tax assets and liabilities are recognized for the future tax consequences of temporary differences between the financial statement carrying amounts and the tax basis of assets and liabilities and net operating loss and credit carryforwards. These differences are valued using enacted rates in effect when those differences are expected to reverse. Valuation allowances are provided against deferred tax assets that are not deemed to be recoverable. The Company recognizes tax positions that are more likely than not to be sustained upon examination by relevant tax authorities. The tax

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IPG PHOTONICS CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(In thousands, except share and per share data)

positions are measured at the greatest amount of tax benefit that is more than 50 percent likely to be realized upon ultimate settlement.

The Company provides reserves for potential payments of tax to various tax authorities related to uncertain tax positions and other issues. The reserves are based on a determination of whether a tax benefit claimed in our tax filings is 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.

Concentration of Credit Risk — Financial instruments that potentially subject the Company to credit risk consist primarily of cash and cash equivalents, short-term investments and accounts receivable. The Company maintains substantially all of its cash and cash equivalents and short-term investments in various financial institutions, which it believes to be high-credit quality financial institutions. The Company grants credit to customers in the ordinary course of business and provides a reserve for potential credit losses. Such losses historically have been within management's expectations.

One of our customers accounted for 14% of our net accounts receivable as of both December 31, 2023 and 2022. The Company has historically depended on a few customers for a significant percentage of its annual net sales. The composition of this group can change from year to year. Net sales derived from the Company's five largest customers as a percentage of its annual net sales were 13%, 15% and 19% in 2023, 2022 and 2021, respectively.

Comprehensive Income — Comprehensive income includes charges and credits to equity that are not the result of transactions with stockholders. Included within comprehensive income is the cumulative foreign currency translation adjustment, and unrealized gains or losses on derivatives. These adjustments are accumulated within the consolidated statements of comprehensive income.

Total components of accumulated other comprehensive loss were as follows:

Other comprehensive (loss) income, net of tax:

Unrealized gain on derivatives, net of tax of $83 — 278 278

Other comprehensive (loss) income, net of tax:

Unrealized gain on derivatives, net of tax of $104 — 336 336

Other comprehensive loss, net of tax:

Unrealized (loss) on derivatives, net of tax benefit of $46 — (152) (152)

Derivative Instruments — The Company's primary market exposures are to interest rates and foreign exchange rates. The Company from time to time may use certain derivative financial instruments to help manage these exposures. The Company

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IPG PHOTONICS CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(In thousands, except share and per share data)

executes these instruments with financial institutions it judges to be credit-worthy. The Company does not hold or issue derivative financial instruments for trading or speculative purposes. The Company recognizes all derivative financial instruments as either assets or liabilities at fair value in the consolidated balance sheets.

Business Segment Information — The Company operates in one segment which involves the design, development, production and distribution of fiber lasers, laser and non-laser systems, fiber amplifiers, and related optical components. The Company has a single, company-wide management team that administers all properties as a whole rather than as discrete operating segments. The chief operating decision maker, who is the Company's chief executive officer, measures financial performance as a single enterprise, and not on geography, legal entity, or end market basis. Throughout the year, the chief operating decision maker allocates capital resources on a project-by-project basis across the Company's entire asset base to maximize profitability without regard to geography, legal entity, or end market basis. The Company operates in a number of countries throughout the world in a variety of product lines. Information regarding product lines and geographic financial information is provided in Note 2, "Revenue from Contracts with Customers" and Note 8, "Property, Plant and Equipment."

Earnings Per Share — Basic net income per common share is computed by dividing net income attributable to common shareholders of the Company by the weighted-average number of common shares outstanding during the reporting period. Diluted net income per common share is computed similarly to basic net income per common share, except that it includes the potential dilution that could occur if dilutive securities were exercised. Information about potentially dilutive and antidilutive shares for the reporting period is provided in Note 18, "Net Income Attributable to IPG Photonics Corporation Per Share."

Leases — The Company determines if an arrangement is a lease at inception. Operating leases are included in other assets, accrued expenses and other liabilities, and other long-term liabilities and deferred income taxes on the Company's consolidated balance sheets.

Right of use ("ROU") assets and lease liabilities are recognized based on the present value of the future minimum lease payments over the lease term at commencement date. As most of the Company's leases do not provide an implicit rate, IPG uses its incremental borrowing rate based on the information available at commencement date in determining the present value of future payments. The ROU assets include any lease payments made and initial direct costs incurred and exclude lease incentives. Lease terms may include options to extend or terminate the lease when it is reasonably certain that the Company will exercise that option. Lease expense for minimum lease payments is recognized on a straight-line basis over the lease term. Leases with an initial term of 12 months or less are not recorded on the balance sheet; the Company recognizes lease expense for these leases on a straight-line basis over the lease term. The Company has lease agreements with lease and non-lease components, which are accounted for as a single lease component.

Recent Accounting Pronouncements

Adopted Pronouncements — None.

Pronouncements Currently Under Evaluation - In November 2023, the FASB issued ASU No. 2023-07, "Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures" ("ASU 2023-07"), which improves reportable segment disclosure requirements, primarily through enhanced disclosures about significant segment expenses on an annual and interim basis. Under the new guidance an entity is required to disclose the title and position of the chief operating decision maker ("CODM") and an explanation of how the CODM uses the reported measure(s) of segment profit or loss in assessing segment performance and deciding how to allocate resources. The ASU also requires that an entity that has a single reportable segment provide all the disclosures required by this ASU and all existing segment disclosures in Topic 280. ASU 2023-07 is effective for fiscal years beginning after December 15, 2023, and interim periods within fiscal years beginning after December 15, 2024. The Company is evaluating the impact of this ASU and does not expect this standard will have a material impact.

In December 2023, the FASB issued ASU No. 2023-09, "Income Taxes (Topic 740): Improvements to Income Tax Disclosures" ("ASU 2023-07"), which requires an entity on an annual basis to disclose specific categories in the rate reconciliation and provide additional information for reconciling items that meet a quantitative threshold. The guidance also requires an entity to disclose on an annual basis information about income taxes paid. ASU 2023-07 is effective for fiscal years beginning after December 15, 2024. The Company is evaluating the impact of this ASU and does not expect this standard will have a material impact.

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IPG PHOTONICS CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(In thousands, except share and per share data)

2. REVENUE FROM CONTRACTS WITH CUSTOMERS

Sales are derived from products for different applications: fiber lasers, diode lasers, systems and accessories for materials processing, fiber lasers, amplifiers and diodes for advanced applications, and fiber lasers, systems and fibers for medical applications.

The following tables represent a disaggregation of revenue from contracts with customers for the years ended December 31, 2023, 2022 and 2021:

Year Ended December 31,

Sales by Application

Sales by Product

Sales by Geography

Europe:

Asia:

Timing of Revenue Recognition

The Company enters into contracts to sell lasers and spare parts, for which revenue is generally recognized upon shipment or delivery, depending on the terms of the contract. The Company also provides installation services and extended warranties. The Company frequently receives consideration from a customer prior to transferring goods to the customer under the terms of a sales contract. The Company records customer deposits related to these prepayments, which represent a contract liability. The Company also records deferred revenue related to installation services when consideration is received before the services have been performed. The standalone selling price for installation services is determined based on the estimated number of days of service technician time required for installation at standard service rates. The Company recognizes customer deposits and deferred revenue as net sales after control of the goods or services has been transferred to the customer and all revenue

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IPG PHOTONICS CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(In thousands, except share and per share data)

recognition criteria are met. The Company bills customers for extended warranties upon entering into the agreement with the customer, resulting in deferred revenue that is recognized over the period of the extended warranty contract. The Company recognizes revenue over time on contracts for the sale of large scale materials processing systems. The timing of customer payments on these contracts generally differs from the timing of revenue recognized. If revenue recognized exceeds customer payments, a contract asset is recorded and if customer payments exceed revenue recognized, a contract liability is recorded. Contract assets are included within prepaid expense and other current assets on the consolidated balance sheets. Contract liabilities are included within accrued expenses and other current liabilities on the consolidated balance sheets. Certain deferred revenues related to extended warranties in excess of one year from the balance sheet date are included within other long-term liabilities and deferred income taxes on the consolidated balance sheets.

The following table reflects the changes in the Company's contract assets and liabilities for the years ended December 31, 2023 and 2022:

December 31, January 1, December 31, January 1,

Contract assets

Contract liabilities

During the years ended December 31, 2023 and 2022, the Company recognized revenue of $62,247 and $73,325, respectively, that was included in the contract liabilities at the beginning of the period.

The following table represents the Company's remaining performance obligations from contracts that are recognized over time as of December 31, 2023:

Remaining Performance Obligations

3. FAIR VALUE MEASUREMENTS

The Company's financial instruments consisted of cash equivalents, short-term investments, accounts receivable, accounts payable, long-term debt, interest rate swaps and revolving lines of credit.

The valuation techniques used to measure fair value are based upon observable and unobservable inputs. Observable inputs reflect market data obtained from independent sources, while unobservable inputs reflect internal market assumptions. These two types of inputs create the following fair value hierarchy: Level 1, defined as observable inputs such as quoted prices for identical instruments in active markets; Level 2, defined as inputs other than quoted prices in active markets that are either directly or indirectly observable; and Level 3, defined as unobservable inputs for which little or no market data exists, therefore requiring an entity to develop its own assumptions. The Company classifies its financial instruments according to the prescribed criteria.

The carrying amounts of money market fund deposits, cash equivalent term deposits, accounts receivable, and accounts payable and revolving lines of credit are considered reasonable estimates of their fair market value due to the short maturity of most of these instruments or as a result of the competitive market interest rates, which have been negotiated. The fair value of the Company's commercial paper, corporate bonds, U.S. Treasury and agency obligations, and term deposits are based on Level 2 inputs.

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IPG PHOTONICS CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(In thousands, except share and per share data)

The following table presents fair value information related to the Company's assets and liabilities measured at amortized cost on the consolidated balance sheets with the exception of the interest rate swap, which was measured at fair value:

Fair Value Measurements at December 31, 2023

Total Level 1 Level 2 Level 3

Assets

Cash equivalents:

Short-term investments:

Fair Value Measurements at December 31, 2022

Total Level 1 Level 2 Level 3

Assets

Cash equivalents:

Short-term investments:

U.S. Treasury and agency obligations 39,611 — 39,611 —

Other assets:

Liabilities

There were no impairments for the investments considered held-to-maturity at December 31, 2023 and December 31, 2022. There were no current expected credit loss allowances for the investments considered held-to-maturity at December 31, 2023 and 2022. The Company holds highly-rated held-to-maturity instruments that are within one year of maturity.

The following table presents the effective maturity dates of debt investments, which are held-to-maturity:

Book Value Fair Value Book Value Fair Value

Investment maturity

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IPG PHOTONICS CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(In thousands, except share and per share data)

The Company entered into an interest rate swap that is designated as a cash flow hedge associated with a long-term note issued during the second quarter of 2016. In May 2023, the Company's long-term variable rate note matured and the interest rate swap associated with this note matured. At December 31, 2022, the carrying value of the note approximates the estimated fair value of $16,031. The long-term notes were reported at amortized cost on the consolidated balance sheets and were classified within Level 2 of the fair value hierarchy.

4. INVENTORIES

Inventories consist of the following:

December 31,

The Company recorded inventory provisions of $45,499, $127,960 and $34,285 for the years ended December 31, 2023, 2022 and 2021, respectively. These provisions relate to the recoverability of the value of inventories due to excess quantities and technological changes. These provisions are reported as a reduction to components and raw materials, work-in-process and finished goods. Within the inventory provision and related charges recorded in 2022, $74,055 is related to Russian operations. See Note 1, "Nature of Business and Summary of Significant Accounting Policies", section Russian Operations for further detail.

5. DIVESTITURE AND SALE OF ASSET

During the third quarter of 2022, the Company completed the sale of its telecommunications transmission product line for $56,222. The Company recorded a gain on divestiture of $21,918 for the year ended December 31, 2022, which was included in the Company's consolidated statements of income. As part of the transaction and just prior to closing, the Company also acquired the remaining non-controlling interests related to the business that was sold for $2,500.

During the fourth quarter of 2022, the Company completed the sale of its corporate aircraft for $25,693 and recorded a gain of $9,928 which was included in the Company's consolidated statements of income.

6. RESTRUCTURING

In the fourth quarter of 2022, the Company implemented a restructuring program at its Russian subsidiary. In 2023, the Company substantially completed the restructuring program. As a result, the remaining restructuring accrual was substantially recovered. This resulted in net restructuring recoveries of $288 for the year ended December 31 2023. The Company incurred restructuring charges of $9,697 for the year ended December 31, 2022.

The restructuring accrual was included in accrued expenses and other liabilities in the Company's consolidated balance sheets. Activities related to the restructuring accrual were as follows:

Balance at January 1 $ 4,869 $ —

Foreign exchange adjustment (862) (335)

Balance at December 31 $ — $ 4,869

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IPG PHOTONICS CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(In thousands, except share and per share data)

7. GOODWILL AND INTANGIBLE ASSETS

The following table sets forth the changes in the carrying amount of goodwill for the years ended December 31, 2023 and 2022:

Goodwill arising from business combinations — 1,000