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STTK US Equity

Shattuck Labs, Inc.Health Care · Pharmaceutical Preparations · CIK 1680367 · FY ends Dec 31
$7.66
+0.21 (+2.82%)
USD · as of 2026-08-19 · marketstack

STTK · 10-K · period ended 2021-12-31

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filed 2022-03-15 · EDGAR original ↗

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Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations

You should read the following discussion and analysis of our financial condition and results of operations together with our audited financial statements and related notes appearing in this Annual Report on Form 10-K. This discussion and other parts of this Annual Report on Form 10-K contain forward-looking statements that involve risks and uncertainties, such as statements of our plans, objectives, expectations and intentions. Our actual results could differ materially from those discussed in these forward-looking statements. Factors that could cause or contribute to such differences include, but are not limited to, those discussed in the section of this report entitled “Risk Factors.” You should carefully read the “Cautionary Note About Forward-Looking Statements” and “Risk Factors” sections of this Annual Report on Form 10-K to gain an understanding of the important factors that could cause actual results to differ materially from the results described below.

Overview

We are an innovative clinical-stage biotechnology company pioneering the development of dual-sided fusion proteins as an entirely new class of biologic medicine. We have created a novel approach to immune modulation by designing biologics with structural characteristics that are not achievable by existing therapeutic modalities, including monoclonal or bispecific antibodies. Compounds derived from our proprietary Agonist Redirected Checkpoint, or ARC, platform simultaneously inhibit checkpoint molecules and activate costimulatory molecules within a single therapeutic.

Our lead product candidate, SL-172154, is designed to simultaneously inhibit the CD47/SIRPα macrophage checkpoint interaction and activate the CD40 costimulatory receptor to induce an antitumor immune response. Coupling CD40 activation with CD47 inhibition differentiates SL-172154 from all other clinical-stage CD47/SIRPα inhibitors in development, and in our published preclinical studies, SL-172154 resulted in superior antitumor immunity as compared to certain CD47/SIRPα inhibitors. We are pursuing a broad clinical development strategy in both hematologic and solid tumors, with multiple ongoing clinical trials. SL-172154 is in an ongoing Phase 1 clinical trial for the treatment of patients with ovarian cancer. In addition to our clinical trials in solid tumors, we are also evaluating SL-172154 in an ongoing Phase 1 clinical trial for the treatment of patients with certain hematologic malignancies, including acute myeloid leukemia, or AML, and higher-risk myelodysplastic syndromes, or HR-MDS. We believe our clinical development plan will provide both first-in-class and best-in-class development opportunities for SL-172154.

Our second product candidate, SL-279252, is designed to simultaneously inhibit the PD-1/PD-L1 interaction and activate the OX40 costimulatory receptor and is in an ongoing Phase 1 clinical trial in patients with advanced solid tumors.

In November 2021, at the 36th annual meeting of the Society for Immunotherapy of Cancer, or the SITC Meeting, we announced initial clinical data from our ongoing Phase 1 clinical trials for SL-172154 in ovarian cancer and for SL-279252 in advanced solid tumors and lymphoma. We believe that these data generated in human cancer patients have demonstrated that the unique protein engineering and physical properties of the ARC platform have led to a differentiated profile in terms of safety and on-target immune activation as compared to monoclonal or bispecific antibodies.

In addition to our clinical-stage ARC product candidates, we possess a deep pipeline of preclinical immuno-oncology candidates. As an example, SL-9258, an ARC in preclinical development, is designed to inhibit the TIGIT/PVR checkpoint interaction while simultaneously activating HVEM and LTβ costimulatory receptors.

Furthermore, our expertise in dual-sided fusion proteins has led to the development of a second novel platform technology. We call this our gamma delta T cell engager, or GADLEN, platform.

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We plan to nominate a third clinical product candidate from our preclinical pipeline in 2022. Longer-term, we are pursuing additional disease areas, including autoimmune diseases, where our dual-sided fusion protein platforms may provide advantages over current treatment modalities.

Overview of Operations

Since our inception in 2016, we have devoted substantially all of our resources to developing and perfecting our intellectual property rights, conducting research and development activities, including undertaking nonclinical studies of our product candidates, conducting clinical trials of our most advanced product candidates, manufacturing our product candidates, organizing and staffing our company, business planning, and raising capital. We do not have any products approved for sale, and we have not generated any revenue from product sales. We have funded our operations as of the filing date of this Annual Report on Form 10-K through the net proceeds from our initial public offering of approximately $213.5 million, the sale of redeemable convertible preferred stock for approximately $152.9 million, the issuance of convertible notes for approximately $10.5 million and payments received pursuant to our collaboration agreement with Takeda for approximately $82.0 million.

For the years ended December 31, 2021 and 2020, our net loss was $45.0 million and $36.6 million, respectively. We have not been profitable since inception, and as of December 31, 2021, we had an accumulated deficit of $117.1 million and $268.8 million in cash and cash equivalents and short-term investments. We expect to continue to incur significant expenses and increasing operating losses in the near term. We expect our expenses will increase substantially in connection with our ongoing activities, as we:

•continue to advance the nonclinical and clinical development of our clinical-stage product candidates, SL-172154 and SL-279252;

•initiate nonclinical studies and clinical trials for additional product candidates that we may identify in the future;

•manufacture sufficient quantities of bulk drug substance and drug product to support our ongoing and planned nonclinical studies and clinical trials;

•continue our process development efforts for our current and future product candidates;

•expand our operational, financial, and management systems;

•increase personnel and infrastructure to support our clinical development, research and manufacturing efforts;

•build out and expand our in-house process development and manufacturing capabilities;

•continue to develop, perfect, and defend our intellectual property portfolio; and

•incur additional legal, accounting, or other expenses in operating our business, including the additional costs associated with operating as a public company.

We do not expect to generate significant product revenue unless and until we successfully complete development and obtain regulatory and marketing approval of, and begin to sell, one or more of our product candidates, which we expect will take several years. We expect to spend a significant amount in development and marketing costs prior to such time. We may never succeed in achieving regulatory and marketing approval for our product candidates. We may obtain unexpected results from our nonclinical and clinical trials. We may elect to discontinue, delay, or modify nonclinical and clinical trials of our product candidates. A change in the outcome of any of these variables with respect to the development of a product candidate could mean a significant change in the costs and timing associated with the development of that product candidate. Accordingly, until such time as we can generate significant product revenue, if ever, we expect to continue to seek private or public equity and debt financing to meet our capital requirements. There can be no assurance that such funding may be available to us on acceptable terms, or at all, or that we will be able to commercialize our product candidates. In addition, we may not be profitable even if we commercialize any of our product candidates.

COVID-19 Pandemic

There is significant uncertainty as to the future effects of the ongoing COVID-19 pandemic, which may, among other things, materially impact our business, including our ongoing and planned clinical trials. We have experienced, and expect to continue to experience, delays in our SL-172154 and SL-279252 clinical trials as a result of the ongoing pandemic. Our manufacturing operations have been impacted by the ongoing pandemic, including delays with our third-party manufacturer and difficulties in obtaining raw materials needed to manufacture material for our clinical trials. Additionally, we have experienced, and expect to continue to experience, delays in enrolling patients, missed treatments for enrolled patients, and performance delays from certain third-party vendors supporting the SL-172154 and SL-279252 clinical trials, although the significance of any future delays is difficult to predict.

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Further, due to public health guidance measures, we have in the past implemented, and may in the future implement, a work-from-home policy for our employees, excluding those necessary to maintain minimum basic operations, which may negatively impact productivity, or disrupt, delay, or otherwise adversely impact our business. For example, some of our research activities that require our personnel to be in our laboratories may be delayed. We may also experience delays or disruptions to our operations if and when our employees need to take time off work due to illness or other COVID-19-related impacts to our workforce.

Due to the impact of the COVID-19 pandemic and work-from-home policies and other operational limitations mandated by federal, state and local governments as a result of the pandemic, certain of our research and development activities, including the conduct of nonclinical studies, have been delayed and may be further delayed and other aspects of our business, such as the conduct of various corporate functions and the ability of our Board and management to provide oversight and guidance may be adversely impacted until such operational limitations are lifted. The COVID-19 pandemic or local outbreaks associated with the COVID-19 pandemic could result in difficulty manufacturing our product candidates, securing clinical trial site locations, contract research organizations, or CROs; and/or trial monitors and other critical vendors and consultants supporting our clinical trials. In addition, outbreaks or the perception of an outbreak near a clinical trial site location could impact our ability to enroll patients or to complete all scheduled physician visits for currently enrolled patients. These situations, or others associated with COVID-19 pandemic, could cause delays in our clinical trial plans and could increase expected costs, all of which could have a material adverse effect on our business and its financial condition. At the current time, we are unable to quantify the potential effects of the COVID-19 pandemic on our future operations.

Collaboration Agreement

On August 8, 2017, we entered into a Collaboration Agreement with Millennium Pharmaceuticals, Inc., or Takeda, a wholly owned subsidiary of Takeda Pharmaceutical Company, Ltd., or the Collaboration Agreement. The Collaboration Agreement was mutually terminated pursuant to the termination agreement, or the Termination Agreement, dated November 8, 2021. Under the terms of the Termination Agreement, we are not required to satisfy any remaining performance obligations, we will not make any payments to or receive any future milestone or royalty payments from Takeda, and all options to license and rights of first negotiation held by Takeda under the Collaboration Agreement were terminated. The remaining deferred revenue was recognized as revenue in the fourth quarter of 2021.

Components of our Results of Operation

Collaboration Revenue - Related Party

We have no products approved for commercial sale, and we have not generated any revenue from commercial product sales. Our total revenue to date has been generated solely from our Collaboration Agreement with Takeda, which was terminated in November 2021. We expect that any collaboration revenue we may generate from any future collaboration partners will fluctuate from period to period.

We have received cash of $3.6 million and $14.0 million for the years ended December 31, 2021 and 2020, respectively, from Takeda under the Collaboration Agreement. We have recognized total aggregate revenue of $82.0 million through December 31, 2021 under the Collaboration Agreement.

Operating Expense

Research and Development Expense

Our research and development expenses consist primarily of costs incurred in connection with the discovery and development of our product candidates. These expenses include:

•expenses incurred to conduct our clinical trials and nonclinical studies;

•costs of manufacturing clinical trial and nonclinical study materials, including the costs of raw materials required for manufacturing;

•process development activities to optimize manufacturing processes;

•employee-related expenses, including salaries, benefits, and stock-based compensation;

•fees paid to third parties who assist with research and development activities;

•expenses relating to regulatory activities, including filing fees paid to regulatory agencies;

•laboratory materials and supplies used to support our research activities; and

•allocated expenses for facility-related costs.

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The following table summarizes our research and development expenses by product candidate:

Year ended December 31,

Research and development activities are central to our business model. Product candidates in later stages of clinical development generally have higher development costs than those in earlier stages of clinical development, primarily due to the increased size and duration of later-stage clinical trials, including increased demand for clinical trial material. We expect our research and development expenses to increase significantly over the next several years as we conduct additional nonclinical studies and clinical trials, including later-stage clinical trials, for our current and future product candidates and pursue regulatory approval of our product candidates.

The process of conducting the necessary nonclinical and clinical research to obtain regulatory approval is costly and time consuming. The actual probability of success for our product candidates may be affected by a variety of factors including:

•the safety and efficacy of our product candidates;

•early clinical data for our product candidates;

•investment in our clinical programs;

•competition;

•manufacturing capability; and

•commercial viability.

We may never succeed in achieving regulatory approval for any of our product candidates due to the uncertainties discussed above. We are unable to determine the duration and completion costs of our research and development projects or when and to what extent we will generate revenue from the commercialization and sale of our product candidates, if ever.

General and Administrative Expense

General and administrative expense consists primarily of personnel expenses, including salaries, benefits, and stock-based compensation expense, for employees and consultants in executive, finance, accounting, legal, information technology and human resource functions. General and administrative expense also includes corporate facility costs, including rent, utilities, depreciation, and maintenance, not otherwise included in research and development expense, as well as legal fees related to intellectual property and corporate matters and fees for accounting and tax services.

We expect that our general and administrative expense will increase in the future to support our growing research and development activities and as a result of the increased costs of operating as a public company. These increases will likely include increased costs related to the hiring of additional personnel and fees to outside consultants, lawyers, and accountants, among other expenses. Additionally, we anticipate increased costs associated with being a public company, including expenses related to services associated with maintaining compliance with the requirements of Nasdaq and the Securities and Exchange Commission, or SEC, insurance, and investor relations costs. If any of our current or future product candidates obtains regulatory approval, we expect that we would incur significantly increased expenses associated with building a sales and marketing team.

Interest Income

Interest income consists of interest earned on our cash, cash equivalents and short-term investments, which consists of amounts held in a money market fund and at various times in short-term government and corporate obligations.

Income Taxes

Since our inception, we have not recorded any income tax benefits for the net operating losses, or NOLs, we have incurred or for our research and development tax credits, as we believe, based upon the weight of available evidence, that it is

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more likely than not that all of our NOLs and tax credits will not be realized. Our NOLs and tax credit carryforwards will begin to expire in 2036. We have recorded a full valuation allowance against our deferred tax assets at each balance sheet date.

Results of Operations

Comparison of the Years Ended December 31, 2021 and 2020

The following table sets forth our results of operations for the years ended December 31, 2021 and 2020.

Year Ended December 31, Change

(in thousands) 2021 2020 Dollar Percentage

Operating expenses:

Other income (expense):

Collaboration Revenue - Related Party

Collaboration revenue increased by $20.1 million, or 202.2%, to $30.0 million for the year ended December 31, 2021 from $9.9 million for the year ended December 31, 2020. The Collaboration Agreement with Takeda was mutually terminated pursuant to the Termination Agreement and all remaining deferred revenue under the Collaboration Agreement was recognized in the fourth quarter of 2021. The increase was primarily attributable to the recognition of the remainder of the deferred revenue associated with the Collaboration Agreement.

Research and Development Expense

Research and development expenses increased by $19.1 million, or 50.9%, to $56.6 million for the year ended December 31, 2021 from $37.5 million for the year ended December 31, 2020. The increase was primarily attributable to an increase of $6.4 million in personnel costs as a result of an increase in headcount to expand our manufacturing and clinical development capabilities, an increase of $5.8 million in manufacturing and clinical costs, an increase of $3.1 million in assay development and nonclinical pipeline costs and an increase of $2.0 million in laboratory and facilities related costs. The remaining $1.8 million increase primarily resulted from an increase in depreciation and outside service fees.

General and Administrative Expense

General and administrative expenses increased by $9.3 million, or 99.6%, to $18.7 million for the year ended December 31, 2021 from $9.4 million for the year ended December 31, 2020. The increase was primarily due to a $5.0 million increase in personnel-related costs driven by higher employee headcount needed to support our growing research and development activities, and a $3.3 million increase for costs associated with being a public company.

Interest Income

Interest income increased by $0.1 million to $0.6 million for the year ended December 31, 2021 from $0.5 million for the year ended December 31, 2020.

Liquidity and Capital Resources

Since our inception, our primary sources of liquidity have been generated by sales of our preferred stock and common stock, including our initial public offering, or IPO, and through our Collaboration Agreement with Takeda.As of December 31, 2021, we had an accumulated deficit of $117.1 million and $268.8 million of cash and cash equivalents and short-term investments.

Capital Resources and Funding Requirements

Our primary uses of cash and cash equivalents and short-term investments are to fund our operations, which consist primarily of research and development expenditures related to our programs, product development costs, research expenses, administrative support, capital expenditures related to bringing in-house certain process development and manufacturing

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capabilities and working capital requirements. We anticipate incurring additional net losses and negative cash flows from operations in the near future until such time, if ever, that we can generate significant sales of our product candidates currently in development. Our future funding requirements will depend on many factors, including:

•the scope, timing, progress, and results of discovery, nonclinical development, laboratory testing, and clinical trials for our product candidates;

•the costs of process development and scale-up of a commercially ready manufacturing process to support registrational clinical trials;

•the costs of manufacturing our product candidates for clinical trials and in preparation for marketing approval and commercialization;

•the extent to which we enter into collaborations or other arrangements with additional third parties in order to further develop our product candidates;

•the costs of preparing, filing and prosecuting patent applications, maintaining, and enforcing our intellectual property rights and defending other intellectual property-related claims;

•the costs and fees associated with the discovery, acquisition, or in-license of additional product candidates or technologies;

•the costs of future commercialization activities, if any, including establishing sales, marketing, manufacturing, distribution, and storage capabilities, for any of our product candidates for which we receive marketing approval; and

•revenue, if any, received from commercial sales of our product candidates, should any of our product candidates receive marketing approval.

Until we obtain regulatory approval to market our product candidates, if ever, we cannot generate revenues from sales of our products. Even if we are able to sell our products, we may not generate a sufficient amount of product revenues to finance our cash requirements. Accordingly, it will be necessary for us to seek to raise additional capital through equity offerings and/or debt financings or from other potential sources of liquidity, which may include new collaborations, licensing or other commercial agreements for one or more of our development programs or patent portfolios. There can be no assurance that such funding may be available to us on acceptable terms, or at all. The issuance of equity securities may result in dilution to stockholders and the issuance of debt securities may have rights, preferences and privileges senior to those of our common stock and the terms of any such debt securities could impose significant restrictions on our operations. The failure to raise funds as and when needed could have a negative impact on our financial condition and ability to pursue our business strategies. Additionally, if additional funding is not secured when required, we may need to delay or curtail our operations until such funding is received, which would have a material and adverse impact on our business prospects and results of operations.

We believe that our cash and cash equivalents and short-term investments as of December 31, 2021 are sufficient to fund projected operations into the second half of 2024.

Cash Flows

The following table shows a summary of our cash flows for the periods indicated:

Year ended December 31,

Net cash used in operating activities $ (57,116) $ (33,659)

Net cash used in investing activities (10,443) (146,322)

Net cash provided by financing activities 1,929 330,866

Net (decrease) increase in cash and cash equivalents $ (65,630) $ 150,885

Net Cash Used in Operating Activities

During the year ended December 31, 2021, net cash used in operating activities was $57.1 million and primarily reflected our net loss of $45.0 million, offset primarily by noncash charges of $6.8 million in stock-based compensation and depreciation, $3.0 million in net amortization of premium on short-term investments and a $22.0 million net change in our operating assets and liabilities. We expect our operating activities expenses to increase as we continue to conduct our clinical trials and nonclinical studies, incur costs of manufacturing clinical trial and nonclinical study materials and continue process development activities to optimize our manufacturing processes.

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During the year ended December 31, 2020, net cash used in operating activities was $33.7 million and primarily reflected our net loss of $36.6 million, offset primarily by noncash charges of $1.9 million in stock-based compensation and depreciation and a $1.1 million net change in our operating assets and liabilities.

Net Cash Used in Investing Activities

During the year ended December 31, 2021, net cash used in investing activities was $10.4 million of which $204.1 million was used to purchase short-term investments, $201.6 million was received from the sale of short-term investments and $7.9 million was used to purchase property and equipment.

During the year ended December 31, 2020, net cash used in investing activities was $146.3 million of which $183.2 million was used to purchase short-term investments, $37.6 million was received from the sale of short-term investments and $0.7 million was used to purchase property and equipment.

Net Cash Provided by Financing Activities

During the year ended December 31, 2021, net cash provided by financing activities was $1.9 million and was from the exercise of stock options and ESPP purchases.

During the year ended December 31, 2020, net cash provided by financing activities was $330.9 million and was primarily from the sale of our Series B and B-1 redeemable convertible preferred stock and proceeds from our initial public offering.

Contractual Obligations and Other Commitments

The following table summarizes our contractual obligations and commitments at December 31, 2021:

(in thousands) Less than1 year 1 to3 years 3 to5 years More than5 years Total

The commitment amounts in the table above are associated with contracts that are enforceable and legally binding and that specify all significant terms, including fixed or minimum services to be used, fixed, minimum, or variable price provisions, and the approximate timing of the actions under the contracts. Payments due upon cancellation consisting only of payments for services provided or expenses incurred, including noncancelable obligations of our service providers, up to the date of cancellation are not included in the preceding tables as the amount and timing of such payments are not known.

We have not included any potential contingent payments upon the achievement by us of specified regulatory and commercial events, as applicable, or patent prosecution or royalty payments we may be required to make under the Heat License Agreement (as defined below). We have excluded these potential payments in the preceding tables because the timing and likelihood of these contingent payments are not currently known and would be difficult to predict or estimate. Contractual obligations represent future cash commitments and liabilities under agreements with third parties, and exclude contingent liabilities for which we cannot reasonably predict future payment. Our contractual obligations result primarily from obligations for various contract manufacturing organizations, or CMO, and clinical research organizations, or CROs, which include potential payments we may be required to make under its agreements. The contracts also contain variable costs and milestones that are hard to predict. The timing of payments and actual amounts paid under CMO and CRO agreements may be different depending on the timing of receipt of goods or services or changes to agreed-upon terms or amounts for some obligations. Also, those agreements are cancellable upon written notice by us and, therefore, not long-term liabilities.

Heat License Agreement

In June 2016, we entered into an Exclusive License Agreement, or the Heat License Agreement, with Heat Biologics Inc., or Heat. The Heat License Agreement was subsequently amended in November 2016, December 2016, and March 2017. Pursuant to the Heat License Agreement, Heat granted to us a worldwide, sublicensable exclusive license to research, develop, manufacture, and commercialize products under three provisional patent applications, including all patents issuing from such applications, or the Fusion Protein Patent Rights and a worldwide, sublicensable nonexclusive license to research, develop, manufacture, and commercialize certain know-how owned and controlled by Heat related to the Fusion Protein Patent Rights.

Under the Heat License Agreement, Heat was required to conduct certain research and development services under a mutually-agreed upon research and development plan and Heat was eligible to receive financial support from us for these efforts. Effective March 2017, Heat completed all research and development services under the Heat License Agreement and assigned to us three patent applications and all data derived from the research and development activities, referred to collectively as the Research Services Inventions. Pursuant to the terms of the Heat License Agreement, we are obligated to use

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commercially reasonable efforts to diligently research and develop at least one product covered by the Fusion Protein Patent Rights, including the obligation to file an IND application for such product. Our development efforts, including the development of SL-279252 and certain other ARC compounds, to date satisfy these obligations.

Unless sooner terminated or extended, the term of the Heat License Agreement continues until the later of 20 years following the effective date and the expiration of the last-to-expire royalty term. Either party may terminate the agreement due to a material breach by the other party (subject to a 90-day cure period) or if the other party files for bankruptcy. In the event we terminate the Heat License Agreement due to a material breach by Heat, Heat must assign to us all right, title, and interest in the patent rights licensed under the Heat License Agreement.

In addition to an upfront payment of $50,000, which we made in 2016, the Heat License Agreement requires us to make further payments to Heat in the future of up to $20.6 million in the aggregate, for the achievement of specified development, regulatory, and commercial sale milestones for certain licensed products. We are also required to pay Heat a percentage of certain upfront fees or other non-royalty payments not tied to milestone events that we receive in connection with certain sublicenses of the Fusion Protein Patent Rights. We will be required to pay Heat a royalty on all worldwide net sales by us, our affiliates, and sublicenses of certain licensed products in the low single digits. Royalties are payable, on a product-by-product and country-by-country basis, commencing on the first commercial sale of such product and continuing until the last-to-expire valid patent claim to the licensed patent rights that cover such product in that country.

Critical Accounting Policies

Our management’s discussion and analysis of our financial condition and results of operations are based on our financial statements, which have been prepared in accordance with accounting principles generally accepted in the United States of America, or GAAP. The preparation of these financial statements requires us to make estimates and judgments that affect the reported amounts of assets, liabilities, and expenses and the disclosure of contingent assets and liabilities in our financial statements. On an ongoing basis, we evaluate our estimates and judgments, including those related to revenue recognition, the accrual for research and development expenses, and the valuation of stock-based awards. We base our estimates on historical experience, known trends and events, and various other factors that are believed to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. Actual results may differ from these estimates under different assumptions or conditions.

While our significant accounting policies are described in more detail in Note 2 to our financial statements included elsewhere in this Annual Report on Form 10-K, we believe the following accounting policies are the most critical to the judgments and estimates used in the preparation of our financial statements.

Revenue Recognition

We have and may continue to enter into collaboration agreements with other companies. Arrangements with collaborators may include licenses to intellectual property, research and development services, manufacturing services for clinical and commercial supply, and participation on joint steering and patent committees. We evaluate the promised goods or services in the contract to determine which promises, or group of promises, represent performance obligations. In contemplation of whether a promised good or service meets the criteria required of a performance obligation, we consider the stage of development of the underlying intellectual property, the capabilities and expertise of the customer relative to the underlying intellectual property, and whether the promised goods or services are integral to or dependent on other promises in the contract. When accounting for an arrangement that contains multiple performance obligations, we develop judgmental assumptions, which may include market conditions, reimbursement rates for personnel costs, development timelines, and probabilities of regulatory success to determine the stand-alone selling price for each performance obligation identified in the contract.

When we conclude that a contract should be accounted for as a combined performance obligation and recognized over time, we then determine the period over which revenue should be recognized and the method by which to measure revenue. We generally recognize revenue using a cost-based input method.

We recognize collaboration revenue when our customer or collaborator obtains control of promised goods or services, in an amount that reflects the consideration that we expect to receive in exchange for those goods or services. To determine revenue recognition for such arrangements, we perform the following five steps:

i.identify the contract(s) with a customer;

ii.identify the performance obligations in the contract;

iii.determine the transaction price;

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iv.allocate the transaction price to the performance obligations within the contract; and

v.recognize revenue when (or as) the entity satisfies a performance obligation.

We only apply the five-step model to contracts when we determine that it is probable we will collect the consideration we are entitled to in exchange for the goods or services we transfer to the customer.

At contract inception, we assess the goods or services promised within the contract to determine whether each promised good or service is a performance obligation. The promised goods or services in the arrangement consist of a license to our intellectual property and research, development and manufacturing services. We may provide options to additional items in such arrangements, which are accounted for as separate contracts when the customer elects to exercise such options, unless the option provides a material right to the customer. Performance obligations are promises in a contract to transfer a distinct good or service to the customer that (i) the customer can benefit from on its own or together with other readily available resources, and (ii) are separately identifiable from other promises in the contract. Goods or services that are not individually distinct performance obligations are combined with other promised goods or services until such combined group of promises meet the requirements of a performance obligation.

We determine transaction price based on the amount of consideration we expect to receive for transferring the promised goods or services in the contract. Consideration may be fixed, variable, or a combination of both. At contract inception for arrangements that include variable consideration, we estimate the probability and extent of consideration we expect to receive under the contract utilizing either the most-likely amount method or expected amount method, whichever best estimates the amount expected to be received. We then consider any constraints on the variable consideration and include in the transaction price variable consideration to the extent it is deemed probable that a significant reversal in the amount of cumulative revenue recognized will not occur when the uncertainty associated with the variable consideration is subsequently resolved.

We then allocate the transaction price to each performance obligation based on the relative standalone selling price and recognize revenue as the amount of the transaction price that is allocated to the respective performance obligation when (or as) control is transferred to the customer and the performance obligation is satisfied. For performance obligations that consist of licenses and other promises, we utilize judgment to assess the nature of the combined performance obligation to determine whether the combined performance obligation is satisfied over time or at a point in time and, if over time, the appropriate method of measuring progress. We evaluate the measure of progress each reporting period and, if necessary, adjust the measure of performance and related revenue recognition.

We record amounts as accounts receivable when the right to consideration is deemed unconditional. When consideration is received, or such consideration is unconditionally due, from a customer prior to transferring goods or services to the customer under the terms of a contract, a contract liability is recorded as deferred revenue.

Amounts received prior to satisfying the revenue recognition criteria are recognized as deferred revenue in our balance sheet. Deferred revenues expected to be recognized as revenue within the 12 months following the balance sheet date are classified as a current liability. Deferred revenues not expected to be recognized as revenue within the 12 months following the balance sheet date are classified as noncurrent liabilities.

Research and Development Expense

Research and development expenses consist primarily of costs incurred in connection with the development of our product candidates. We expense research and development costs as incurred.

We accrue expenses for manufacturing, process development, nonclinical studies and clinical trial activities performed by vendors based upon estimates of the proportion of work completed. We determine the estimates by reviewing contracts, vendor agreements and purchase orders, and through discussions with our internal personnel and external service providers as to the progress or stage of completion of trials or services and the agreed-upon fee to be paid for such services. However, actual costs and timing of clinical trials are highly uncertain, subject to risks and may change depending upon a number of factors, including our clinical development plan.

We make estimates of our prepaid and accrued expenses as of each balance sheet date in our financial statements based on facts and circumstances known at that time. If the actual timing of the performance of services or the level of effort varies from the estimate, we will adjust the accrual accordingly. Nonrefundable advance payments for goods and services, including fees for process development or manufacturing and distribution of clinical supplies that will be used in future research and development activities, are deferred and recognized as expense in the period that the related goods are consumed or services are performed.

Stock-Based Compensation

We measure compensation expense for all share-based awards based on the estimated fair value of the share-based awards on the grant date. We use the Black-Scholes option pricing model to value our stock option awards. We recognize

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compensation expense on a straight-line basis over the requisite service period, which is generally the vesting period of the award.

The Black-Scholes option-pricing model requires the use of subjective assumptions that include the expected stock price volatility and, for options granted prior to our IPO, the fair value of the underlying common stock on the date of grant. See Note 9 to our audited financial statements included elsewhere in this Annual Report on Form 10-K for information concerning certain of the specific assumptions we used in applying the Black-Scholes option pricing model to determine the estimated fair value of our stock options granted during the year ended December 31, 2021.

Recent Accounting Pronouncements

See Note 2 to our financial statements found elsewhere in this Annual Report on Form 10-K for a description of recent accounting pronouncements applicable to our financial statements.

Emerging Growth Company and Smaller Reporting Company Status

We are an emerging growth company as defined in the JOBS Act. Under the JOBS Act, an emerging growth company can take advantage of the extended transition period for complying with new or revised accounting standards and delay the adoption of certain accounting standards until those standards would otherwise apply to private companies. We have elected to avail ourselves of this exemption from complying with new or revised accounting standards and, therefore, will not be subject to the same new or revised accounting standards as other public companies that are not emerging growth companies. As a result, our financial statements may not be comparable to companies that comply with new or revised accounting pronouncements as of public company effective dates.

We have evaluated the benefits of relying on other exemptions and reduced reporting requirements under the JOBS Act. Subject to certain conditions, as an emerging growth company, we may rely on certain of these exemptions, including without limitation exemptions to the requirements for (1) providing an auditor’s attestation report on our system of internal controls over financial reporting pursuant to Section 404(b) of the Sarbanes-Oxley Act and (2) complying with any requirement that may be adopted by the Public Company Accounting Oversight Board regarding mandatory audit firm rotation or a supplement to the auditor’s report providing additional information about the audit and the financial statements, known as the auditor discussion and analysis. We will remain an emerging growth company until the earlier of (a) the last day of the fiscal year (i) following the fifth anniversary of the completion of our initial public offering, (ii) in which we have total annual gross revenues of at least $1.07 billion or (iii) in which we are deemed to be a “large accelerated filer” under the rules of the SEC, which means the market value of our common stock that is held by non-affiliates exceeds $700.0 million as of the prior June 30th, or (b) the date on which we have issued more than $1.0 billion in non-convertible debt during the prior three-year period.

We are also a “smaller reporting company” as defined under the Exchange Act. We may continue to be a smaller reporting company if either (i) the market value of our stock held by non-affiliates is less than $250.0 million or (ii) our annual revenue is less than $100.0 million during the most recently completed fiscal year and the market value of our stock held by non-affiliates is less than $700.0 million. If we are a smaller reporting company at the time we cease to be an emerging growth company, we may continue to rely on exemptions from certain disclosure requirements that are available to smaller reporting companies. Specifically, as a smaller reporting company we may choose to present only the two most recent fiscal years of audited financial statements in our Annual Report on Form 10-K and, similar to emerging growth companies, smaller reporting companies have reduced disclosure obligations regarding executive compensation.

Item 7A. Quantitative and Qualitative Disclosures About Market Risk

We are a smaller reporting company, as defined by Rule 12b-2 under the Securities and Exchange Act of 1934 and in Item 10(f)(1) of Regulation S-K, and are not required to provide the information under this item.

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Item 8. Audited Financial Statements

SHATTUCK LABS, INC.

INDEX TO FINANCIAL STATEMENTS

Page

Report of Independent Registered Public Accounting Firm 62

Statements of Cash Flows for the Years Ended December 31, 2021 and 2020 66

Notes to Financial Statements 67

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Report of Independent Registered Public Accounting Firm

To the Stockholders and Board of Directors

Shattuck Labs, Inc.:

Opinion on the Financial Statements

We have audited the accompanying balance sheets of Shattuck Labs, Inc. (the Company) as of December 31, 2021 and 2020, the related statements of operations and comprehensive loss, changes in redeemable convertible preferred stock and stockholders’ equity (deficit), and cash flows for the years then ended, and the related notes (collectively, 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, 2021 and 2020, and the results of its operations and its cash flows for the years then ended, in conformity with U.S. generally accepted accounting principles.

Basis for Opinion

These financial statements are the responsibility of the Company’s management. Our responsibility is to express an opinion on these financial statements based on our audits. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (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. The Company is not required to have, nor were we engaged to perform, an audit of its internal control over financial reporting. As part of our audits, we are required to obtain an understanding of internal control over financial reporting but not for the purpose of expressing an opinion on the effectiveness of the Company’s internal control over financial reporting. Accordingly, we express no such opinion.

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.

/s/ KPMG LLP

We have served as the Company’s auditor since 2018.

Austin, Texas

March 15, 2022

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SHATTUCK LABS, INC.

BALANCE SHEETS

(In thousands, except share and per share amounts)

December 31,

Assets

Current assets:

Prepaid expenses and other current assets 19,462 10,190

Liabilities and Stockholders’ Equity

Current liabilities:

Deferred revenue - related party — 7,728

Deferred revenue - related party, net of current portion — 21,306

Commitments and contingencies (Note 6)

Stockholders’ equity:

Accumulated other comprehensive loss (560) (63)

Total liabilities and stockholders’ equity $ 298,585 $ 348,988

See accompanying notes to financial statements

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SHATTUCK LABS, INC.

STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS

(In thousands, except share and per share amounts)

Year Ended December 31,

Collaboration revenue - related party $ 30,017 $ 9,934

Operating expenses:

Other income (expense):

Total other income (expense) 295 328

Unrealized loss on investments (497) (117)

Net loss per share - basic and diluted $ (1.07) $ (2.36)

See accompanying notes to financial statements

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SHATTUCK LABS, INC.

STATEMENTS OF CHANGES IN REDEEMABLE CONVERTIBLE PREFERRED STOCK

AND STOCKHOLDERS’ EQUITY (DEFICIT)

(In thousands, except share amounts)

Shares Amount Shares Amount Shares Amount Shares Amount

Stock-based compensation expense — — — — — — — — 1,266 — — 1,266

Unrealized loss on investments — — — — — — — — — (117) — (117)

Stock-based compensation expense — — — — — — — — 5,467 — — 5,467

Unrealized loss on investments — — — — — — — — — (497) — (497)

See accompanying notes to financial statements

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SHATTUCK LABS, INC.

STATEMENTS OF CASH FLOWS

(In thousands)

Year Ended December 31,

Cash flows from operating activities:

Adjustments to reconcile net loss to net cash used in operations:

Net amortization of premium on short-term investments 3,035 1

Changes in operating assets and liabilities:

Prepaid expenses and other current assets (9,272) (6,835)

Deferred revenue - related party (29,034) 6,569

Net cash used in operating activities (57,116) (33,659)

Cash flows from investing activities:

Purchase of property and equipment (7,926) (727)

Sale and maturities of short-term investments 201,575 37,595

Net cash used in investing activities (10,443) (146,322)

Cash flows from financing activities:

Proceeds from the exercises of stock options and ESPP purchases 1,929 229

Proceeds from the initial public offering — 232,301

Issuance costs of the initial public offering — (18,738)

Proceeds from sale of Series B-1 redeemable convertible preferred stock — 83,000

Issuance costs of Series B-1 redeemable convertible preferred stock — (387)

Proceeds from sale of Series B redeemable convertible preferred stock — 34,620

Issuance costs of Series B redeemable convertible preferred stock — (159)

Net cash provided by financing activities 1,929 330,866

Net increase (decrease) in cash and cash equivalents (65,630) 150,885

Cash and cash equivalents, beginning of period 157,898 7,013

Cash and cash equivalents, end of period $ 92,268 $ 157,898

Supplemental disclosures of non-cash financial activities:

Unrealized loss on short-term investments $ (497) $ (117)

Unpaid amounts related to purchase of property and equipment $ 392 $ 454

See accompanying notes to financial statements

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SHATTUCK LABS, INC.

NOTES TO FINANCIAL STATEMENTS

1. Organization and Description of Business

Shattuck Labs, Inc. (the “Company”) was incorporated in 2016 in the State of Delaware and is a clinical-stage biopharmaceutical company developing dual-sided fusion proteins, including its ARC® and GADLENTM platforms, as novel classes of biologic medicines capable of multifunctional activity with potential applications in oncology and inflammatory diseases. Using its proprietary technology, the Company is building a pipeline of therapeutics, initially focused on the treatment of solid tumors and hematologic malignancies. The Company has two clinical-stage product candidates, SL-172154 and SL-279252, and has several compounds in preclinical development.

Liquidity

The Company has incurred losses and negative cash flows from operations since inception and has an accumulated deficit of $117.1 million as of December 31, 2021. The Company anticipates incurring additional losses and negative cash flows from operations until such time, if ever, that it can generate significant sales of its product candidates currently in development, and is highly dependent on its ability to find additional sources of funding in the form of licensing of its technology, collaboration agreements, and/or public and private debt and equity financings. Adequate additional funding may not be available to the Company on acceptable terms, or at all. The failure to raise funds as and when needed could have a negative impact on the Company’s financial condition and ability to pursue its clinical operations, research and development and commercialization of its product candidates. Management believes that the Company’s cash and cash equivalents and short-term investments of $268.8 million as of December 31, 2021, are sufficient to fund projected operations of the Company for at least the next twelve months.

COVID-19 Pandemic

On March 10, 2020, the World Health Organization declared the COVID-19 outbreak a pandemic. The virus and actions taken to mitigate its spread have had, and are expected to continue to have, a broad adverse impact on the economies and financial markets of many countries, including the geographical areas in which the Company operates and conducts its business and in which the Company’s partners operate and conduct their business. The Company is currently following the recommendations of local health authorities to minimize exposure risk for its team members and visitors. However, the scale and scope of this pandemic is unknown and the duration of the business disruption and related financial impact cannot be reasonably estimated at this time. While the Company has implemented specific business continuity plans to reduce the potential impact of COVID-19, there is no guarantee that the Company’s continuity plans will be successful.

The Company has already experienced disruptions to its business such as work-from-home orders for offices and similar disruptions have occurred for its partners. Specifically, the outbreak has caused disruptions in its ability to manufacture clinical trial materials, including the acquisition of raw materials needed for such manufacturing, enrollment and treatment of patients in clinical trials in process, and slowdowns and shutdowns of the laboratories and other service providers that are being relied upon in the development of the Company’s product candidates.

The extent to which the COVID-19 pandemic or any other health epidemic may impact the Company’s results will depend on future developments, which are highly uncertain and cannot be predicted, including new information that may emerge concerning the severity of COVID-19 and the actions to mitigate its impact, among others. Accordingly, the COVID-19 pandemic could have a material adverse effect on the Company’s business, results of operations and financial condition.

2. Basis of Presentation and Summary of Significant Accounting Policies

Basis of Presentation

The accompanying audited financial statements have been prepared in conformity with accounting principles generally accepted in the United States of America (“GAAP”).

Use of Estimates

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Significant estimates and assumptions reflected in these financial statements include, but are not limited to, revenue recognition, the accrual of research and development expenses, and the valuation of stock-based awards. Estimates are periodically reviewed in light of changes in circumstances, facts and experience. Changes in estimates, if any, are recorded in the period in which they become known and actual results could differ from management’s estimates. A change in the Company’s estimates occurred in the second quarter of 2021, which impacted the Company’s revenue recognition and related balance sheet accounts.

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Fair Value of Financial Instruments

Fair value is defined as the price that would be received upon the sale of an asset or paid upon the transfer of a liability in an orderly transaction between market participants at the measurement date and in the principal or most advantageous market for that asset or liability. Fair value measurements are classified and disclosed in one of the following categories:

•Level 1: Observable inputs such as quoted prices in active markets for identical assets the reporting entity has the ability to access as of the measurement date;

•Level 2: Inputs, other than quoted prices in active markets, that are observable either directly or indirectly; and

•Level 3: Unobservable inputs in which there is little or no market data, which require the reporting entity to develop its own assumptions.

Fair value measurements are classified based on the lowest level of input that is significant to the measurement. The Company’s assessment of the significance of a particular input to the fair value measurement requires judgment, which may affect the valuation of the assets and liabilities and their placement within the fair value hierarchy levels. The determination of the fair values stated below takes into account the market for its financial assets and liabilities, the associated credit risk and other factors as required. The Company considers active markets as those in which transactions for the assets or liabilities occur with sufficient frequency and volume to provide pricing information on an ongoing basis.

Management believes that the carrying amounts of the Company’s financial instruments, including short-term investments and accounts payable, approximate fair value due to the short-term nature of those instruments.

Concentration of Risk

Financial instruments that potentially subject the Company to concentrations of credit risk primarily consist of cash, cash equivalents and short-term investments. The Company maintains its cash and cash equivalents at two accredited financial institutions in amounts that exceed federally-insured limits. The Company does not believe that it is subject to unusual credit risk beyond the normal credit risk associated with commercial banking relationships. The Company invests in only highly rated debt securities that management believes protects the Company from risk of default and impairment of value.

All of the Company’s revenue is derived from its collaboration agreement with Millennium Pharmaceuticals, Inc., a wholly owned subsidiary of Takeda Pharmaceutical Company Limited (“Takeda”), which was mutually terminated pursuant to the termination agreement, dated November 8, 2021.

The Company is highly dependent on one third-party contract manufacturing organization (“CMO”) to supply drug products for its research and development activities of its programs, including clinical trials and non-clinical studies. These programs could be adversely affected by a significant interruption in the supply of such drug products.

The Company is highly dependent on three contract research organizations (“CROs”) and a limited number of third-party service providers to manage and support its clinical trials. These programs could be adversely affected by a significant disruption in services provided by these CROs and third parties.

Cash and Cash Equivalents

The Company considers all demand deposits with financial institutions and all highly liquid investments with original maturities of 90 days or less at the date of purchase to be cash and cash equivalents. Cash and cash equivalents consisted of $14.6 million held in operating accounts and $77.7 million held in money market funds as of December 31, 2021 and $2.7 million held in operating accounts, $80.2 million held in money market funds and $75.0 million held in government obligations as of December 31, 2020.

Short-Term Investments

Short-term investments consist of highly-rated U.S. Treasury securities with maturities of more than three months but less than one year at the date of purchase. The Company classifies its short-term investments at the time of purchase as available-for-sale securities. Available-for-sale securities are carried at fair value. Credit impairments for available-for-sale debt securities are recorded through an allowance rather than a direct write-down of the security and are recorded through a charge to the statements of operations. Unrealized gains or losses not related to credit impairments are recorded in accumulated other comprehensive income, a component of stockholders’ equity, until realized. The Company reviews available-for-sale debt securities for impairments related to credit losses and other factors each quarter. As of December 31, 2021, there were no impairments related to credit losses of short-term investments.

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Deferred Offering Costs

The Company capitalizes certain legal, accounting and other third-party fees that are directly associated with in-process equity financings as deferred offering costs until such financings are consummated. After consummation of the equity financing, these costs will be recorded against gross proceeds.

Series A, Series B and Series B-1 Redeemable Convertible Preferred Stock

The Company records shares of redeemable convertible preferred stock at their respective fair values on the date of issuance, net of issuance costs. The redeemable convertible preferred stock is recorded outside of stockholders’ equity on the balance sheet because the shares contain liquidation features that are not solely within the Company’s control. Upon the completion of the Company’s initial public offering (“IPO”) in the fourth quarter of 2020, all outstanding shares of the Company’s redeemable convertible preferred stock were converted into common stock.

Prepaid Expenses and Other Current Assets

Prepaid expenses and other current assets include prepaid expenses for general business purposes and services used in research projects, which are stated at cost and amortized on a straight-line basis over the related period of benefit. Supplies and materials that have multiple applications for alternative future use are expensed as they are consumed.

Property and Equipment

Property and equipment are stated at cost, net of accumulated depreciation. Depreciation expense is recognized using the straight-line method over the estimated useful life of the asset. Expenditures for repairs and maintenance that do not extend the estimated useful life or improve an asset are expensed as incurred. Upon retirement or sale, the cost and related accumulated depreciation and amortization of assets disposed of are removed from the accounts, and any resulting gain or loss is included in the statement of operations and comprehensive loss.

Depreciation periods are as follows:

Office equipment 3 years

Furniture and fixtures 5 to 10 years

Lab equipment 5 years

Leasehold improvements Shorter of lease term or 15 years

Impairment of Long-Lived Assets

Long-lived assets are reviewed for indications of possible impairment whenever events or changes in circumstance indicate that the carrying amount of an asset may not be recoverable. Recoverability is measured by comparison of the carrying amounts to the future undiscounted cash flows attributable to these assets. An impairment loss is recognized to the extent an asset group is not recoverable and the carrying amount exceeds the projected discounted future cash flows arising from these assets. There were no impairments of long-lived assets for the years ended December 31, 2021 and 2020.

Deferred Rent

The Company records rent expense on a straight-line basis over the term of the leases and, accordingly records the difference between cash payments and the recognition of rent expense as a deferred rent asset or liability. Incentives granted under the Company’s leases, including allowances to fund leasehold improvements, are deferred and recognized as adjustments to rent expense on a straight-line basis over the term of the leases.

Revenue Recognition

Collaboration revenue is recognized in accordance with ASC 606, Revenue from Contracts with Customers (“ASC 606”). Arrangements with collaborators may include licenses to intellectual property, research and development services, manufacturing services for clinical and commercial supply and participation on joint steering committees. The Company evaluates the promised goods or services in the contract to determine which promises, or group of promises, represent performance obligations. In contemplation of whether a promised good or service meets the criteria required of a performance obligation, the Company considers the stage of development of the underlying intellectual property, the capabilities and expertise of the customer relative to the underlying intellectual property and whether the promised goods or services are integral to or dependent on other promises in the contract. When accounting for an arrangement that contains multiple performance obligations, the Company must develop judgmental assumptions, which may include market conditions, reimbursement rates for personnel costs, development timelines and probabilities of regulatory success to determine the stand-alone selling price for each performance obligation identified in the contract.

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Upon the amendment of an existing agreement, the Company evaluates whether the amendment represents a modification to an existing contract which would be recorded through a cumulative catch-up to revenue, or a separate contract. If it is determined that it is a separate contract, the Company will evaluate the necessary revenue recognition through the five-step process described below.

When the Company concludes that a contract should be accounted for as a combined performance obligation and recognized over time, the Company must then determine the period over which revenue should be recognized and the method by which to measure revenue. The Company generally recognizes revenue using a cost-based input method.

The Company recognizes collaboration revenue in an amount that reflects the consideration that the Company expects to receive in exchange for those goods or services when its customer or collaborator obtains control of promised goods or services. To determine revenue recognition for arrangements that the Company determines are within the scope of ASC 606, the following five steps are performed:

i.identify the contract(s) with a customer;

ii.identify the performance obligations in the contract;

iii.determine the transaction price;

iv.allocate the transaction price to the performance obligations within the contract; and

v.recognize revenue when (or as) the entity satisfies a performance obligation.

The Company only applies the five-step model to contracts when it determines that it is probable it will collect the consideration it is entitled to in exchange for the goods or services it transfers to the customer.

At contract inception, once the contract is determined to be within the scope of ASC 606, the Company assesses the goods or services promised within the contract to determine whether each promised good or service is a performance obligation. The promised goods or services in the Company’s arrangements may consist of a license of, or options to license, the Company’s intellectual property and research, development and manufacturing services. The Company may provide options to additional items in such arrangements, which are accounted for as separate contracts when the customer elects to exercise such options, unless the option provides a material right to the customer. Performance obligations are promises in a contract to transfer a distinct good or service to the customer that (i) the customer can benefit from on its own or together with other readily available resources and (ii) are separately identifiable from other promises in the contract. Goods or services that are not individually distinct performance obligations are combined with other promised goods or services until such combined group of promises meet the requirements of a performance obligation.

The Company determines transaction price based on the amount of consideration the Company expects to receive for transferring the promised goods or services in the contract. Consideration may be fixed, variable or a combination of both. At contract inception for arrangements that include variable consideration, the Company estimates the probability and extent of consideration it expects to receive under the contract utilizing either the most-likely amount method or expected amount method, whichever best estimates the amount expected to be received. The Company then considers any constraints on the variable consideration and includes variable consideration in the transaction price to the extent it is deemed probable that a significant reversal in the amount of cumulative revenue recognized will not occur when the uncertainty associated with the variable consideration is subsequently resolved.

The Company then allocates the transaction price to each performance obligation based on the relative standalone selling price and recognizes as revenue the amount of the transaction price that is allocated to the respective performance obligation when (or as) control is transferred to the customer and the performance obligation is satisfied. For performance obligations which consist of licenses and other promises, the Company utilizes judgment to assess the nature of the combined performance obligation to determine whether the combined performance obligation is satisfied over time or at a point in time and, if over time, the appropriate method of measuring progress. The Company evaluates the measure of progress each reporting period and, if necessary, adjusts the measure of performance and related revenue recognition.

The Company records amounts as accounts receivable when the right to consideration is deemed unconditional. When consideration is received, or such consideration is unconditionally due, from a customer prior to transferring goods or services to the customer under the terms of a contract, a contract liability is recorded as deferred revenue.

Amounts received prior to satisfying the revenue recognition criteria are recognized as deferred revenue in the Company’s accompanying balance sheet. Deferred revenues expected to be recognized as revenue within the 12 months following the balance sheet date are classified as a current liability. Deferred revenues not expected to be recognized as revenue within the 12 months following the balance sheet date are classified as non-current liabilities.

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The Company’s collaboration revenue arrangements may include the following:

Up-front License Fees: If a license is determined to be distinct from the other performance obligations identified in the arrangement, the Company recognizes revenues from nonrefundable, up-front fees allocated to the license when the license is transferred to the licensee and the licensee is able to use and benefit from the license. For licenses that are bundled with other promises, the Company utilizes judgment to assess the nature of the combined performance obligation to determine whether the combined performance obligation is satisfied over time or at a point in time and, if over time, the appropriate method of measuring progress for purposes of recognizing revenue from non-refundable, up-front fees. The Company evaluates the measure of progress each reporting period and, if necessary, adjusts the measure of performance and related revenue recognition.

Milestone Payments: At the inception of an agreement that includes research and development milestone payments, the Company evaluates each milestone to determine when and how much of the milestone to include in the transaction price. The Company first estimates the amount of the milestone payment that the Company could receive using either the expected value or the most-likely amount approach. The Company primarily uses the most-likely amount approach as that approach is generally most predictive for milestone payments with a binary outcome. The Company then considers whether any portion of that estimated amount is subject to the variable consideration constraint (that is, whether it is probable that a significant reversal of cumulative revenue would not occur upon resolution of the uncertainty). The Company updates the estimate of variable consideration included in the transaction price at each reporting date which includes updating the assessment of the likely amount of consideration and the application of the constraint to reflect current facts and circumstances.

Royalties: For arrangements that include sales-based royalties, including milestone payments based on a level of sales, and the license is deemed to be the predominant item to which the royalties relate, the Company will recognize revenue at the later of (i) when the related sales occur, or (ii) when the performance obligation to which some or all of the royalty has been allocated has been satisfied (or partially satisfied).

To date, the Company has not granted a development and commercialization license nor recognized any revenue related to sales-based royalties or milestone payments based on the level of sales.

Research and Development Services: The Company will record costs associated with development and process optimization activities as research and development expenses in the statements of operations and comprehensive loss consistent with ASC 730, Research and Development. The Company considered the guidance in ASC 808, Collaborative Agreements and will recognize the payments received from these agreements as revenue when the related costs are incurred.

Research and Development Costs

Research and development costs are expensed as incurred, and include salaries, stock-based compensation and other personnel-related costs, equipment and supplies, depreciation, nonclinical studies, clinical trials and manufacturing development activities.

A substantial portion of the Company’s ongoing research and development activities are conducted by third-party service providers, including CROs and CMOs. The Company accrues for expenses resulting from obligations under agreements with CROs, CMOs and other outside service providers for which payment flows do not match the periods over which materials or services are provided to the Company. Accruals are recorded based on estimates of services received and efforts expended pursuant to agreements established with CROs, CMOs and other outside service providers. These estimates are typically based on contracted amounts applied to the proportion of work performed and determined through an evaluation of the progress or stage of completion of the services. In the event advance payments are made to a CRO, CMO or outside service provider, the payments will be recorded as a prepaid asset which will be amortized as the contracted services are performed. As actual costs become known, the Company adjusts its accruals and prepaid assets accordingly. Inputs, such as the services performed, the number of patients enrolled or the study duration, may vary from the Company’s estimates, resulting in adjustments to research and development expense in future periods. The Company makes significant judgements and estimates in determining the accrual and/or prepaid balance in each reporting period and changes in these estimates may result in material changes to the Company’s accruals that could materially affect the Company’s results of operations.

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Stock-Based Compensation

The Company recognizes the grant-date fair value of stock-based awards issued to employees and nonemployee Board members as compensation expense on a straight-line basis over the vesting period of the award. The Company uses the Black-Scholes option pricing model to determine the grant-date fair value of stock options. The Company adjusts expense for forfeitures in the periods they occur.

Income Taxes

The Company uses the asset and liability method of accounting for income taxes. Under this method, deferred tax assets and liabilities are recognized for the expected future tax consequences of temporary differences between the financial statements and the tax bases of assets and liabilities. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect of a change in tax rates on deferred tax assets and liabilities will be recognized in the period that includes the enactment date. Additionally, any changes in income tax laws are immediately recognized in the year of enactment.

A valuation allowance is established against the deferred tax assets to reduce their carrying value to an amount that is more likely than not to be realized. The deferred tax assets and liabilities are classified as noncurrent along with the related valuation allowance. Due to a lack of earnings history, the net deferred tax assets have been fully offset by a valuation allowance.

The Company recognizes benefits of uncertain tax positions if it is more likely than not that such positions will be sustained upon examination based solely on the technical merits, as the largest amount of benefits that is more likely than not to be realized upon the ultimate settlement. The Company’s policy is to recognize interest and penalties related to the unrecognized tax benefits as a component of income tax expense.

Net Loss Per Share

Basic loss per share of common stock is computed by dividing net loss attributable to common stockholders by the weighted-average number of shares of common stock outstanding during each period. Diluted loss per share of common stock includes the effect, if any, from the potential exercise or conversion of securities, such as redeemable convertible preferred stock, convertible notes, stock options and unvested shares of restricted stock, which would result in the issuance of incremental shares of common stock. For diluted net loss per share, the weighted-average number of shares of common stock is the same for basic net loss per share due to the fact that when a net loss exists, dilutive securities are not included in the calculation as the impact is anti-dilutive.

The following potentially dilutive securities have been excluded from the computation of diluted weighted-average shares of common stock outstanding, as they would be anti-dilutive:

December 31,

Unvested restricted stock — 11,752

Other Comprehensive Income (Loss)

Other comprehensive income (loss) is defined as the change in equity of a business enterprise during a period from transactions and other events and circumstances from non-owner sources. Other comprehensive income (loss) is comprised of the net loss and unrealized gains and losses on short-term investments.

Recently Adopted Accounting Pronouncements

In December 2019, the Financial Accounting Standards Board (the “FASB”) issued ASU No. 2019-12, Income Taxes: Simplifying the Accounting for Income Taxes. The ASU removes certain exceptions to the general principles in ASC 740, Income Taxes and also clarifies and amends existing guidance to improve consistent application. This ASU is effective for fiscal years beginning after December 15, 2020, including interim periods within that fiscal year, with early adoption permitted. The Company adopted this pronouncement effective January 1, 2021 and it did not have a material impact on the financial statements or related disclosures.

Recently Issued Accounting Pronouncements (not yet adopted)

In February 2016, the FASB issued ASU No. 2016-02, Leases which requires a lessee to record a right-of-use asset and a corresponding lease liability on the balance sheet for all leases with terms longer than 12 months. A modified retrospective

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transition approach is required for lessees for capital and operating leases existing at, or entered into after, the beginning of the earliest comparative period presented in the financial statements, with certain practical expedients available. The FASB deferred the effective date of this ASU until the annual periods beginning after December 15, 2021. The Company expects that the most significant effects of adopting this standard will primarily relate to (a) the recognition of right of use assets and lease liabilities on the balance sheet in relation to its existing operating lease agreements in Austin, Texas and Durham, North Carolina; and (b) providing significant new disclosures about leasing activities. The Company is currently evaluating the expected impact that the standard could have on its financial statements and related disclosures.

3. Short-Term Investments

The following table represents the Company’s available for sale short-term investments by major security type (amounts in thousands):

AmortizedCost Gross UnrealizedLoss TotalFair Value

Short-term investments:

AmortizedCost Gross UnrealizedLoss TotalFair Value

Short-term investments:

The Company’s short-term investment instruments and cash and cash equivalents are classified using Level 1 inputs within the fair value hierarchy and are valued using quoted market prices, broker or dealer quotations, or alternative pricing sources with reasonable levels of price transparency. Debt securities have an average maturity of 0.43 years as of December 31, 2021.

4. Property and Equipment

Property and equipment consisted of the following (amounts in thousands):

December 31,

Accumulated depreciation and amortization (2,780) (1,480)

Property and equipment, net $ 9,938 $ 3,000

Depreciation and amortization expense for the years ended December 31, 2021 and 2020 was $1.4 million and $0.6 million, respectively.

5. Accrued Expenses

Accrued expenses consisted of the following (amounts in thousands):

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December 31,

Research and development contract costs $ 10,253 $ 5,382

Compensation and related benefits 3,320 1,551

6. Commitments and Contingencies

Operating Leases

As of December 31, 2021, future minimum payments, by year and in aggregate, under non-cancelable operating leases consist of the following (amounts in thousands):

Total minimum lease payments $ 7,233

The Company recognized rent expense of $0.7 million and $0.4 million for the years ended December 31, 2021 and 2020, respectively.

Heat License Agreement

In connection with a license agreement with Heat Biologics Inc. (“Heat”), the Company is required to make payments of up to $20.6 million in aggregate for the achievement of specified development, regulatory and commercial sales milestones for certain licensed products. The Company is required to pay Heat a percentage of upfront fees or other non-royalty payments not tied to milestone events that it receives in connection with certain sublicenses of the licensed patents. The Company is also required to pay Heat a royalty on all of its worldwide net sales, those of its affiliates and sublicenses of certain licensed patents in the low single digits. The Company has not recorded a liability for the payments aforementioned given the achievement of specified development, regulatory and commercial sales milestones for certain licensed products is not probable as of the balance sheet date.

Litigation

From time to time, the Company may become involved in various legal actions arising in the ordinary course of business. On January 31, 2022 and February 11, 2022, putative class action lawsuits were filed in the U.S. District Court for the Eastern District of New York against us and certain of the Company’s officers and directors. In each complaint, the plaintiff cites the volatility in the Company’s common stock and alleges that the defendants made or are responsible for false or misleading statements regarding the Company’s collaboration agreement with Takeda. The plaintiffs in both lawsuits seek a ruling that the case may proceed as a class action, and seeks unspecified damages and attorneys’ fees, expert fees and costs. The Company and the individual defendants deny any allegations of wrongdoing and intend to vigorously defend against these lawsuits.

Contractual Obligations

Contractual obligations represent future cash commitments and liabilities under agreements with third parties, and exclude contingent liabilities for which the Company cannot reasonably predict future payment. The Company’s contractual obligations result primarily from obligations for various CMOs and CROs, which include potential payments that may be required under its agreements. The contracts also contain variable costs and milestones that are hard to predict as they are based on such things as patients enrolled and clinical trial sites. The timing of payments and actual amounts paid under CMO and CRO agreements may be different depending on the timing of receipt of goods or services or changes to agreed-upon terms or amounts for some obligations. Such agreements are cancellable upon written notice by the Company and, therefore, are not long-term liabilities.

7. Preferred Stock

During the year ended December 31, 2020, the Company entered into various stock purchase agreements with new and existing investors pursuant to which the Company sold an aggregate 550,571 shares of Series B redeemable convertible

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preferred stock and 1,319,964 shares of Series B-1 redeemable convertible preferred stock at $62.88051 per share for net proceeds of $117.0 million.

The Company’s Series A, Series B and Series B-1 redeemable convertible preferred stock converted into common stock upon the completion of the Company’s IPO in 2020 and the rights, preferences, and terms are no longer applicable.

8. Collaboration Agreement - Related Party

The Company recognized revenue for the allocated up-front payments using a cost-based input measure. In applying the cost-based input method of revenue recognition, the Company used actual costs incurred relative to budgeted costs expected to be incurred for the combined performance obligation. In August 2017, the Company entered into a Collaboration Agreement with Takeda related to the development of certain ARC molecules, as amended in April 2018, October 2018 and March 2020 (the “Collaboration Agreement”). The Collaboration Agreement was mutually terminated pursuant to a termination agreement dated November 8, 2021 (the “Termination Agreement”). Under the terms of the Termination Agreement, the Company is not required to satisfy any remaining performance obligations, the Company will not make any payments to or receive any future milestone or royalty payments from Takeda, and all options to license and rights of first negotiation held by Takeda under the Collaboration Agreement were terminated. The remaining deferred revenue was recognized as revenue in the fourth quarter of 2021. The Company received cash of $3.6 million and $14.0 million in the years ended December 31, 2021 and 2020, respectively, and recognized total revenue of $82.0 million through December 31, 2021 under the Collaboration Agreement.

9. Stock-Based Compensation

2020 Equity Incentive Plan

In September 2020, the Company adopted the 2020 Stock Incentive Plan (the “2020 Plan”) which, as of the adoption date, replaced the 2016 Stock Incentive Plan. Under the 2020 Plan, the share reserve automatically increases on January 1st of each year beginning in 2021 and ending with a final increase on January 1, 2030 in an amount equal to 4% of the Company’s outstanding common shares on December 31st of the preceding calendar year. The Board of Directors may provide that there will be no increase in the share reserve for any such year or that the increase in the share reserve may be smaller than would otherwise occur. As of December 31, 2021, there were 3,912,408 shares available for future grants under the 2020 Plan and on January 1, 2022, the share reserve automatically increased by 1,693,555 shares. The 2020 Plan permits the granting of options and restricted stock. The terms of the agreements under the 2020 Plan are determined by the Company’s Board of Directors. The Company’s awards vest based on the terms in the agreements and generally vest over four years and have a term of 10 years.

2020 Employee Stock Purchase Plan

The 2020 Employee Stock Purchase Plan (“2020 ESPP”) became effective in connection with the Company’s IPO. A total of 395,795 shares of common stock were reserved for issuance under the 2020 ESPP. Eligible employees may purchase shares of common stock under the 2020 ESPP at 85% of the lower of the fair market value of the Company’s common stock as of the first or the last day of each offering period. Employees are limited to contributing 15% of the employee’s eligible compensation and may not purchase more than $25,000 of stock during any calendar year or more than 600 shares during any one purchase period. The 2020 ESPP share reserve automatically increases on January 1st of each calendar year, for ten years, commencing on January 1, 2021, in an amount equal to 1% of the total number of shares of common stock outstanding on December 31st of the preceding calendar year. The Board may act prior to January 1st of a given year to provide that there will be no January 1st increase of the share reserve for such year or that the increase in the share reserve for such year will be a smaller number of shares of common stock than would otherwise occur pursuant to the preceding sentence. As of December 31, 2021 there were 393,689 shares available for future purchases and on January 1, 2022, the share reserve automatically increased by 423,388 shares. Under the 2020 ESPP, the Company issued 2,106 shares of common stock for aggregate cash proceeds of $0.1 million during the year ended December 31, 2021. There were no shares of common stock issued during the year ended December 31, 2020.

The Company recorded stock-based compensation expense in the following expense categories of its accompanying audited statements of operations and comprehensive loss (amounts in thousands):

Year Ended December 31,

Research and development $ 2,200 $ 531

General and administrative 3,267 735

Total stock-based compensation $ 5,467 $ 1,266

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The following table summarizes option activity under the 2020 Plan and the 2016 Stock Incentive Plan:

Options WeightedAverageExercise Price WeightedAverageRemaining Life(Years)

Options granted during the years ended December 31, 2021 and 2020 had weighted-average grant-date fair values of $16.38 and $8.93 per share, respectively. As of December 31, 2021, the unrecognized compensation cost was $11.4 million and will be recognized over an estimated weighted-average amortization period of 2.48 years. The aggregate intrinsic value of options exercised as of December 31, 2021 and 2020 was $10.8 million and $49.7 million, respectively. The aggregate intrinsic value of options outstanding and exercisable as of December 31, 2021 was $5.9 million.

The fair value of each option is estimated on the date of grant using a Black-Scholes option pricing model which takes into account inputs such as the exercise price, the estimated fair value of the underlying common stock at grant date, expected term, expected stock price volatility, risk-free interest rate and dividend yield. The fair value of stock options was determined using the methods and assumptions discussed below.

•The expected term of employee stock options with service-based vesting is determined using the “simplified” method, whereby the expected life equals the arithmetic average of the vesting term and the original contractual term of the option due to the Company’s lack of sufficient historical data.

•The expected stock price volatility is based on historical volatilities of comparable public entities within the Company’s industry.

•The risk-free interest rate is based on the interest rate payable on U.S. Treasury securities in effect at the time of grant for a period that is commensurate with the expected term.

•The expected dividend yield is 0% because the Company has not historically paid, and does not expect, for the foreseeable future, to pay a dividend on its common stock.

•Prior to the Company’s IPO, its Board periodically estimated the fair value of the Company’s common stock considering, among other things, contemporaneous valuations of its common stock prepared by an unrelated third-party valuation firm. Subsequent to the Company’s IPO, options are issued with a strike price no less than the market price on date of grant.

The grant-date fair value of options granted under the Company’s 2020 Plan were estimated throughout the year using the Black-Scholes option-pricing model using the following weighted-average assumptions:

Year Ended December 31,

Expected term - years 6.08 5.94

Expected volatility 81.4 % 75.3 %

Risk-free interest rate 1.1 % 0.5 %

Expected dividends — —

The restricted shares are considered the issuance of share-based payments as opposed to the sale of stock and as such, the Company has recognized compensation expense for these awards based on the fair value of the award on the date of grant.

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The following table summarizes the activity relating to these shares:

Awards

Outstanding at December 31, 2021 —

The grant-date fair value of shares issued under the Company’s 2020 ESPP were estimated throughout the year using the Black-Scholes option-pricing model using the following weighted-average assumptions:

Year Ended December 31,

Expected term - years 0.50 0.00

Expected volatility 81.3 % — %

Risk-free interest rate 0.9 % — %

Expected dividends — —

10. Income Taxes

The Company recorded no federal provision for income taxes as of December 31, 2021 and 2020 due to reported net losses since inception. The difference between the Company’s provision for income taxes and the amounts computed by applying the statutory federal income tax rate to income before income taxes is as follows for the years ended December 31, 2021 and 2020 (amounts in thousands):

Year Ended December 31,

Income tax benefit computed at federal statutory tax rate $ (9,445) $ (7,687)

Return to provision adjustments — (745)

Other permanent differences — 119

Stock compensation (1,923) —

Section 162(m) limitation 809 —

Change in uncertain tax position 622 223

Income tax benefit $ — $ —

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Significant components of the Company’s deferred tax assets and liabilities as of December 31, 2021 and 2020 are as follows (amounts in thousands):

December 31,

Deferred tax asset:

Net operating loss carryforwards $ 20,460 $ 9,891

Deferred revenue — 2,631

Capital loss carryforwards 484 27

Deferred tax liability:

Depreciation and amortization (578) (121)

Total deferred tax liability (1,106) (499)

Total net deferred tax asset $ — $ —

The Company has established a valuation allowance equal to the net deferred tax asset due to uncertainties regarding the realization of the deferred tax asset based on the Company’s lack of earnings history. The valuation allowance increased by $13.0 million and $8.7 million during the years ended December 31, 2021 and 2020, respectively, primarily due to continuing loss from operations, general business credit carryforwards, and accrued expenses.

As of December 31, 2021 and 2020, the Company had gross U.S. net operating loss (“NOL”) carryforwards of $97.4 million and $47.1 million, respectively. Additionally, as of December 31, 2021 and 2020, the Company had capital loss carryforwards of $2.3 million and $0.1 million, respectively. As of December 31, 2021 and 2020, the Company had gross state NOL carryforwards of $0.2 million and $0.2 million, respectively. As of December 31, 2021 and 2020, the Company had gross U.S. tax credit carryforwards of $7.6 million and $4.5 million, respectively. The NOL, capital loss, and tax credit carryforwards will begin to expire in 2036, if not utilized. The NOL, capital loss, and credit carryforwards are subject to Internal Revenue Service adjustments until the statute closes on the year the net operating loss or credit carryforwards are utilized.

Section 382 of the Internal Revenue Code limits the utilization of U.S. NOLs following a change of control. After the 2019 financial statements were filed, the Company completed a Section 382 study from formation through October 14, 2020. Although an ownership change occurred during 2020, no deferred tax assets were impacted by the limitation.

A reconciliation of our liability for unrecognized tax benefits is as follows:

Year Ended December 31,

Balance, beginning of the year $ 783 $ 560

Increase for tax positions related to the current year 449 223

Increase for tax positions related to prior years 172 —

All of the Company’s gross unrecognized tax benefits, if recognized, would affect its effective tax rate. The Company does not expect unrecognized tax benefits to decrease within the next twelve months due to the lapse of statute limitations. The Company recognizes accrued interest and penalties related to unrecognized tax benefits as a component of income tax expense. As of December 31, 2021, the Company has not accrued any interest or penalties related to unrecognized tax benefits.

The Company files income tax returns in the U.S. and state jurisdictions. The Company is subject to examination by taxing authorities in its significant jurisdictions for the 2018, 2019, and 2020 tax years. There are currently no federal or state income tax audits in progress.

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11. Related Party

As of December 31, 2020, Takeda held an approximate 5.0% ownership interest in the Company’s outstanding shares. Considering the resignation of the Takeda director and percent ownership of the Company’s common stock as of December 31, 2020, the Company no longer considers Takeda a related party.

12. Subsequent Events

None.

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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

Our management, with the participation of our principal executive officer and our principal financial officer, evaluated, as of the end of the period covered by this Annual Report on Form 10-K, the effectiveness of our disclosure controls and procedures. Based on this evaluation of our disclosure controls and procedures as of December 31, 2021, our principal executive officer and principal financial officer concluded that our disclosure controls and procedures as of such date are effective at the reasonable assurance level. The term “disclosure controls and procedures,” as defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, as amended, or the Exchange Act, means controls and other procedures of a company that are designed to ensure that information required to be disclosed by a company in the reports that it files or submits under the Exchange Act are 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 us in the reports we file or submit under the Exchange Act is accumulated and communicated to our management, including our principal executive officer and principal financial officer, as appropriate to allow timely decisions regarding required disclosure. Management recognizes that any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving their objectives and our management necessarily applies its judgment in evaluating the cost-benefit relationship of possible controls and procedures.

Management’s Annual Report on Internal Control Over Financial Reporting

Our management is responsible for establishing and maintaining adequate internal control over financial reporting (as defined in Rules 13a-15(f) under the Exchange Act). Internal control over financial reporting is a process designed under the supervision and with the participation of our management, including our principal executive officer and our principal financial officer, 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 in the United States.

As of December 31, 2021, our management assessed the effectiveness of our internal control over financial reporting using the criteria set forth by the Committee of Sponsoring Organizations of the Treadway Commission in Internal Control-Integrated Framework. Based on this assessment, our management concluded that our internal control over financial reporting was effective as of December 31, 2021.

Attestation Report of Registered Public Accounting Firm

This Annual Report on Form 10-K does not include an attestation report of our registered public accounting firm. For as long as we remain an “emerging growth company” as defined in Section 2(a) of the Securities Act of 1933, or the Securities Act, as modified by the Jumpstart Our Business Startups Act of 2012, we intend to take advantage of the exemption permitting us not to comply with the requirement that our independent registered public accounting firm provide an attestation on the effectiveness of our internal control over financial reporting.

Changes in Internal Control over Financial Reporting

There were no changes in our internal control over financial reporting during fourth quarter ended December 31, 2021 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

Item 9B. Other Information

None.

Item 9C. Disclosure Regarding Foreign Jurisdictions that Prevent Inspections

None.

Part III.

Item 10. Directors, Executive Officers and Corporate Governance

The information required by this item is incorporated herein by reference to our Proxy Statement with respect to our 2022 Annual Meeting of Stockholders to be filed with the SEC within 120 days of the end of the fiscal year covered by this Annual Report on Form 10-K, including under the heading “Directors, Executive Officers, and Corporate Governance.”

We have adopted a written code of business conduct and ethics that applies to our directors, officers and employees, including our principal executive officer, principal financial officer, principal accounting officer or controller, or persons performing

80

similar functions. A copy of the code is available on our website located at ir.shattucklabs.com, under “Governance.” We intend to disclose on our website any amendments to, or waivers from, the code of business conduct and ethics that are required to be disclosed pursuant to the disclosure requirements of Item 5.05 of Form 8-K within four business days following the date of the amendment or waiver.

Item 11. Executive Compensation

The information required by this item is incorporated herein by reference to our Proxy Statement with respect to our 2022 Annual Meeting of Stockholders to be filed with the SEC within 120 days of the end of the fiscal year covered by this Annual Report on Form 10-K, including under the headings “Executive Compensation” and “Directors, Executive Officers and Corporate Governance.”

Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholders

The information required by this item is incorporated herein by reference to our Proxy Statement with respect to our 2022 Annual Meeting of Stockholders to be filed with the SEC within 120 days of the end of the fiscal year covered by this Annual Report on Form 10-K, including under the headings “Security Ownership of Certain Beneficial Owners and Management” and “Executive Compensation-Securities Authorized for Issuance Under Equity Compensation Plans.”

Item 13. Certain Relationships and Related Transactions, and Director Independence

The information required by this item is incorporated herein by reference to our Proxy Statement with respect to our 2022 Annual Meeting of Stockholders to be filed with the SEC within 120 days of the end of the fiscal year covered by this Annual Report on Form 10-K, including under the headings “Directors, Executive Officers and Corporate Governance” and “Certain Relationships and Related Party Transactions.”

Item 14. Principal Accountant Fees and Services

The information required by this item is incorporated herein by reference to our Proxy Statement with respect to our 2022 Annual Meeting of Stockholders to be filed with the SEC within 120 days of the end of the fiscal year covered by this Annual Report on Form 10-K, including under the heading “Proposal 2: Ratification of Selection of Independent Registered Public Accounting Firm.” Our independent registered public accounting firm is KPMG LLP, Austin, TX PCAOB ID:185.

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Part IV.

Item 15. Exhibits and Financial Statement Schedules

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

(a) Financial Statements.

See Index to Consolidated Financial Statements at Part II, Item 8 “Financial Statements – Audited Financial Statements.”

(b) Financial Statement Schedules.

No financial statement schedules are provided because the information called for is not required or is shown in the financial statements or the notes thereto.

(c) Exhibits.

The following exhibits are filed (or incorporated by reference herein) as part of this Annual Report on Form 10-K:

ExhibitNumber Description of Exhibit

82

23.1* Consent of Independent Registered Public Accounting Firm.

101.INS* XBRL Instance Document

101.SCH* XBRL Taxonomy Extension Schema Document

101.CAL* XBRL Taxonomy Extension Calculation Linkbase Document

101.DEF* XBRL Taxonomy Extension Definition

101.LAB* XBRL Taxonomy Extension Label Linkbase Document

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101.PRE* XBRL Taxonomy Extension Presentation Linkbase Document

__________

* Filed herewith.

+ Indicates management contract or compensatory plan.

† Certain confidential portions of this exhibit were omitted by means of marking such portions with asterisks because the identified confidential portions (i) are not material and (ii) would be competitively harmful if publicly disclosed.

# The certifications on Exhibit 32 hereto are deemed not “filed” for purposes of Section 18 of the Exchange Act or otherwise subject to the liability of that Section. Such certifications will not be deemed incorporated by reference into any filing under the Securities Act or the Exchange Act.

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 on Form 10-K to be signed on its behalf by the undersigned, thereunto duly authorized, on this 15th day of March 2022.

Shattuck Labs, Inc.

Date: March 15, 2022 By: /s/ Dr. Taylor Schreiber

Dr. Taylor Schreiber

Chief Executive Officer

(principal executive officer)

Date: March 15, 2022 By: /s/ Andrew R. Neill

Andrew R. Neill

Chief Financial Officer

(principal financial and accounting officer)

Pursuant to the requirements of the Securities Act of 1933, this registration statement has been signed by the following persons in the capacities and on the dates set forth opposite their names.

Signature Title Date

/s/ Dr. Taylor Schreiber Chief Executive Officer and Director March 15, 2022

Dr. Taylor Schreiber (principal executive officer)

/s/ Andrew R. Neill Chief Financial Officer March 15, 2022

Andrew R. Neill (principal financial and accounting officer)

/s/ Dr. George Golumbeski Chairman of the Board March 15, 2022

Dr. George Golumbeski

/s/ Helen M. Boudreau Director March 15, 2022

Helen M. Boudreau

/s/ Dr. Neil Gibson Director March 15, 2022

Dr. Neil Gibson

/s/ Dr. Carrie Brownstein Director March 15, 2022

Dr. Carrie Brownstein

/s/ Michael Lee Director March 15, 2022

Michael Lee

/s/ Tyler Brous Director March 15, 2022

Tyler Brous

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End of the document.
Source: SEC EDGAR (public domain) · 10-K for the period ended 2021-12-31, filed 2022-03-15 · accession 0001680367-22-000005

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