Overview

MiNK Therapeutics, Inc. ("we," "us" and "our") is a clinical stage biopharmaceutical company pioneering the discovery, development and manufacturing of allogeneic, off-the-shelf invariant natural killer T ("iNKT") cell therapies to treat cancer and other immune-mediated diseases. iNKT cells are a distinct T cell population that combine durable memory responses with the rapid cytolytic features of natural killer ("NK") cells. iNKT cells offer distinct therapeutic advantages as a platform for allogeneic therapy in that the cells naturally home to tissues, aid clearance of tumors and infected cells and suppress Graft versus Host Disease ("GvHD"). Our proprietary platform is designed to facilitate scalable and reproducible manufacturing for off-the-shelf delivery. As such, we believe that our approach represents a highly versatile application for therapeutic development in cancer and immune diseases. We are leveraging our platform and manufacturing capabilities to develop a wholly owned or exclusively licensed pipeline of both native and engineered iNKT cells.

Our business activities include product research and development, manufacturing, regulatory and clinical development, corporate finance, and support of our collaborations. To be successful, our product candidates require clinical trials and approvals from regulatory agencies, as well as acceptance in the marketplace. We are a party to an Amended and Restated Intercompany Services Agreement and an Intellectual Property Assignment and License Agreement with Agenus. Under the Amended and Restated Intercompany Services Agreement, Agenus provides us with certain general and administrative support, including, without limitation, financial, facilities management, human resources and information technology administrative support, and we and Agenus provide each other with certain research and development services and other support services, including legal and regulatory support. We are also entitled to use Agenus' business offices and laboratory space and equipment in exchange for us contributing a proportionate payment for the use of such facilities and equipment, and we will be covered by certain Agenus insurance policies, subject to certain conditions, including us paying the cost of such coverage. Under the Intellectual Property Assignment and License Agreement, Agenus exclusively assigned patent rights and know-how related to our technology to us. We also have a field-limited exclusive license under certain Agenus patents and know-how; and we retain the rights to expand a proprietary pipeline of products and technologies.

We recently announced the internalization of manufacturing and completed the internal cGMP production of AgenT-797 with expansion capacity to treat >700,000 patients/year. Our most advanced product, AGENT-797, is an off-the-shelf, allogeneic, native iNKT cell therapy. We have commenced a Phase 1 clinical trial of AGENT-797 for the treatment of multiple myeloma, reported preliminary signals of activity, and expect to report data from this trial in the fourth quarter of 2022. In addition, we announced the initiation of our Phase 1 clinical trial for the study of solid tumor cancers with AGENT-797 as a monotherapy and in combination with approved checkpoint inhibitors, which we intend to advance as a priority. We currently expect to have preliminary readouts from this trial in 2022 in indications that may lead to an accelerated path to marketing approval. We also intend to initiate a Phase 1 study of AGENT-797 in GvHD in 2022. Finally, with the unique circumstances of the COVID-19 pandemic, we were able to commence first-in-human studies of AGENT-797 in acute respiratory distress ("ARDS") secondary to COVID-19 and reported encouraging survival benefit exceeding 75% presented at the Society of Immunotherapy for Cancer in 2021. We expect to present updated data of the clinical effect of AGENT-797 on viral ARDS, an indication where there are no approved therapies. We recently announced that agenT-797 for the treatment of infections and viral ARDS was identified as selectable for funding by DARPA; contract negotiations are underway.

In addition, we are advancing a pipeline of next-generation allogeneic, engineered iNKT programs. Our two most advanced engineered programs are (1) a CAR-iNKT program targeting B-cell maturation antigen ("BCMA"), which we refer to as BCMA-CAR-iNKT, and (2) a tumor stromal targeting CAR-iNKT program, which we refer to as stromal target-CAR-iNKT. These programs are novel and differentiated, and both are in preclinical development. We initiated our investigational new drug application filings for these candidates in 2022.

Our research and development ("R&D") expenses for the six months ended June 30, 2022 and 2021 were $11.2 million and $6.7 million, respectively. We have incurred losses since our inception. As of June 30, 2022, we had an accumulated deficit of $96.8 million.

We expect to continue to incur operating losses and negative cash flows for the foreseeable future. Based on our current plans and projections, we believe our quarter-end cash and cash equivalents balance will be sufficient to satisfy our liquidity requirements for more than one year from when these financial statements were issued. Management continues to monitor our liquidity position and will adjust spending as needed in order to preserve liquidity. Our future liquidity needs will be determined primarily by the success of our operations with respect to the progress of our product candidates and key development and regulatory events in the future. Potential sources of additional funding include: (1) pursuing collaboration, out-licensing and/or partnering opportunities for our portfolio programs and product candidates with one or more third parties, (2) securing debt financing and/or (3) selling equity securities.



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Historical Results of Operations

Three Months Ended June 30, 2022 Compared to the Three Months Ended June 30, 2021

Research and development expense

R&D expense includes the costs associated with our internal research and development activities, including compensation and benefits, occupancy costs, manufacturing costs, costs of expert consultants, and administrative costs. R&D expense increased 64% to $5.9 million for the three months ended June 30, 2022 from $3.6 million for the three months ended June 30, 2021. This increase is primarily due to an increase in costs associated with the advancement of our clinical trials, increased preclinical activities and increased personnel costs associated with internalization of our manufacturing activities.

General and administrative expense

General and administrative ("G&A") expense consists primarily of personnel costs, facility expenses, and professional fees. G&A expense increased 110% to $1.8 million for the three months ended June 30, 2022 from $0.9 million for the three months ended June 30, 2021. This increase is primarily due to increased personnel costs, including stock-based compensation expense, and increased professional fees, primarily attributable to additional legal, audit and tax and insurance fees.

Other income (expense), net

Other income (expense), net includes our foreign currency transactional activity and other income or expense. Other income increased $1.5 million for the three months ended June 30, 2022, from income of $0.1 million for the three months ended June 30, 2021 to income of $1.6 million for the three months ended June 30, 2022, primarily due to the recognition of a $2.7 million gain on the partial forgiveness of the advance received under our research and development agreement with the Belgium Walloon Region Government (the "Walloon Region"), which was partially offset by foreign currency exchange losses, in the three months ended June 30, 2022, compared to foreign currency exchange gains in the three months ended June 30, 2021.

Change in fair value of convertible affiliated note

Change in fair value of convertible affiliated note reflects the result of our fair value measurement of our convertible affiliated note issued to Agenus (the "Note") at the balance sheet date. In October 2021, in connection with our initial public offering, the Note was automatically converted into 5,451,958 shares of our common stock and was not outstanding as of June 30, 2022.

Interest expense

Interest expense related to the Note was $0.8 million for the three months ended June 30, 2021. In October 2021, in connection with our initial public offering, the Note was automatically converted into 5,451,958 shares of our common stock and was not outstanding as of June 30, 2022.

Six Months Ended June 30, 2022 Compared to the Six Months Ended June 30, 2021

Research and development expense

R&D expense includes the costs associated with our internal research and development activities, including compensation and benefits, occupancy costs, manufacturing costs, costs of expert consultants, and administrative costs. R&D expense increased 67% to $11.2 million for the six months ended June 30, 2022 from $6.7 million for the six months ended June 30, 2021. This increase is primarily due to an increase in costs associated with the advancement of our clinical trials, increased preclinical activities and increased personnel costs associated with internalization of our manufacturing activities.

General and administrative expense

G&A expense consists primarily of personnel costs, facility expenses, and professional fees. G&A expense increased 168% to $3.9 million for the six months ended June 30, 2022 from $1.5 million for the six months ended June 30, 2021. This increase is primarily due to increased personnel costs, including stock-based compensation expense, and increased professional fees, primarily attributable to additional legal, strategy, audit and tax and insurance fees.



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Change in fair value of convertible affiliated note

Change in fair value of convertible affiliated note reflects the result of our fair value measurement of the Note at the balance sheet date. In October 2021, in connection with our initial public offering, the Note was automatically converted into 5,451,958 shares of our common stock and was not outstanding as of June 30, 2022.

Other income (expense), net

Other income (expense), net includes our foreign currency transactional activity and other income or expense. Other income increased $1.2 million for the six months ended June 30, 2022, from expense of $12,000 for the six months ended June 30, 2021 to income of $1.2 million for the six months ended June 30, 2022, primarily due to the recognition of a $2.7 million gain on the partial forgiveness of the advance received under our research and development agreement with the Walloon Region, which was partially offset by foreign currency exchange losses, in the six months ended June 30, 2022, compared to de minimis foreign currency exchange losses in the six months ended June 30, 2021.

Interest expense

Interest expense related to the Note was $1.5 million for the six months ended June 30, 2021. In October 2021, in connection with our initial public offering, the Note was automatically converted into 5,451,958 shares of our common stock and was not outstanding as of June 30, 2022.

Research and Development Programs

R&D program costs include compensation and other direct costs plus an allocation of indirect costs, based on certain assumptions.


                               For the six months
                                 ended June 30,            For the years ended December 31,
                                      2022                   2021                    2020
Payroll and personnel costs    $        2,197,218      $       3,346,853       $       3,007,044
Professional fees                       6,038,633              6,761,139               5,025,282
Allocated services                        907,235              1,377,456                 758,549
Materials and other                     2,010,341              2,480,920                 718,180
Total                          $       11,153,427      $      13,966,368       $       9,509,055

Our product candidates are in various stages of development and significant additional expenditures will be required if we start new clinical trials, encounter delays in our programs, apply for regulatory approvals, continue development of our technologies, expand our operations and/or bring our product candidates to market. The total cost of any particular clinical trial is dependent on a number of factors such as trial design, length of the trial, number of clinical sites, number of patients and trial sponsorship. The process of obtaining and maintaining regulatory approvals for new products is lengthy, expensive and uncertain. Because of the current stage of our product candidates, among other factors, we are unable to reliably estimate the cost of completing our research and development programs or the timing for bringing such programs to various markets or substantial partnering or out-licensing arrangements, and, therefore, when, if ever, material cash inflows are likely to commence.

Liquidity and Capital Resources

We have incurred annual operating losses since inception in 2017, and we had an accumulated deficit of $96.8 million as of June 30, 2022. We expect to incur losses over the next several years as we continue development of our technologies and product candidates, manage our regulatory processes, initiate and continue clinical trials, and prepare for potential commercialization of products.

In October 2021, we completed an initial public offering of 3,333,334 shares of our common stock, at a public offering price of $12.00 per share. The gross proceeds from the offering, before deducting underwriting discounts, commissions and other offering expenses, were approximately $46.0 million, which includes the exercise of the underwriters option to acquire an additional 500,000 shares at the public offering price, which shares were delivered in November 2021. Underwriting discounts, commissions and other offering expenses, were approximately $6.2 million, resulting in net proceeds of approximately $39.8 million.



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Prior to our initial public offering, we had been reliant on Agenus to finance our operations. From our inception through our initial public offering in October 2021, we received funding of $45.5 million from Agenus through the Note. The Note had a $45.5 million principal balance, plus accrued and unpaid interest of $6.8 million, as of October 14, 2021, the date we priced our initial public offering. In connection of the completion of our initial public offering, the Note was automatically converted into 5,451,958 shares of our common stock and was not outstanding as of June 30, 2022.

In December 2018, we entered into an agreement with the Walloon Region in which the Walloon Region agreed to provide a grant of up to €1.3 million and an advance of up to €8.3 million for the development of one of our research programs. As of June 30, 2022, we had received $881,000 of the grant portion and $5.2 million of the advance. During 2020, we discontinued research efforts related to this program, and in 2021 we provided additional information as requested by the Walloon Region to terminate the agreement. We recognized the grant portion received as income during the years ended December 31, 2019 and 2020. Based on notice received in the second quarter of 2022 stating that the Walloon Region was seeking repayment of approximately $2.2 million of the advance, we reduced the recorded liability and recorded a gain of approximately $2.7 million in our condensed consolidated statement of operations for the period ended June 30, 2022. We have included the remaining balance of $2.2 million in other current liabilities in our condensed consolidated balance sheet at June 30, 2022 while we evaluate the merits of the Walloon Region's claim to the amount. The Walloon Region obtained a default judgment for the $2.2 million. The Company is evaluating its options to reverse the judgment as it provided timely notice of its intentions to cease operations pursuant to the December 2018 agreement.

Our cash and cash equivalents balance as of June 30, 2022 was $29.8 million. Based on our current plans and projections we believe this cash balance will be sufficient to satisfy our liquidity requirements for more than one year from when these financial statements were issued.

Management continues to monitor our liquidity position and will adjust spending as needed in order to preserve liquidity. Our future liquidity needs will be determined primarily by the success of our operations with respect to the progression of our product candidates and key development and regulatory events in the future. Potential sources of additional funding include: (1) pursuing collaboration, out-licensing and/or partnering opportunities for our portfolio programs and product candidates with one or more third parties, (2) securing debt financing and/or (3) selling equity securities.

Net cash used in operating activities for the six months ended June 30, 2022 and 2021 was $8.8 million and $7.6 million, respectively. Our future ability to generate cash from operations will depend on achieving regulatory approval and market acceptance of our product candidates, and our ability to enter into collaborations.

Forward-Looking Statements

This Quarterly Report on Form 10-Q contains forward-looking statements. You can identify these forward-looking statements by the fact they use words such as "could," "expect," "anticipate," "estimate," "target," "may," "project," "guidance," "intend," "plan," "believe," "will," "potential," "opportunity," "future" and other words and terms of similar meaning. Certain forward-looking statements in this Quarterly Report on Form 10-Q can be identified by the fact that they do not relate strictly to historical or current facts. In particular, these statements relate to, among other things, our business strategy, our research and development, our ability to commercialize our product candidates, our prospects for initiating partnerships or collaborations, uncertainty regarding our future operating results and our profitability, anticipated sources of funds as well as our plans, objectives, expectations, and intentions. Such forward-looking statements are based on current expectations and involve inherent risks and uncertainties, including factors that could delay, divert or change any of them, and could cause actual outcomes to differ materially from current expectations. Therefore, we caution investors not to place significant reliance on forward-looking statements contained in this document; such statements need to be evaluated in light of all the information contained in this document. Furthermore, the statements speak only as of the date of this document, and we undertake no obligation to update or revise these statements, except as required by law.

Some of the factors that could cause actual results to differ are identified below, as well as those discussed in the Item 1A. Risk Factors section in our Annual Report on Form 10-K for the year ended December 31, 2021. It is not possible to predict or identify all such factors. Consequently, you should not consider the following to be a complete discussion of all potential risks or uncertainties: we expect to incur losses for the foreseeable future; if we fail to raise capital, we would be forced to delay, reduce, or eliminate certain projects; raising additional capital may cause dilution to our stockholders, restrict our operations or require us to relinquish rights to our technologies; we may fail to develop AGENT-797 successfully or be unable to obtain regulatory approval for it; utilizing allogeneic iNKT cells represents a novel approach to immunotherapy; our product candidates will require significant additional testing before we can seek regulatory approval; we may experience delays or difficulties in the enrollment of patients in our clinical trials; serious adverse events, undesirable side effects or unexpected characteristics caused by our product candidates could delay or prevent regulatory approval or limit their commercial potential; data produced in our clinical trials is at an early stage and future data may not support continued development; if our clinical trials fail to demonstrate safety and efficacy, we may incur additional costs or experience delays in completing, or ultimately be unable to complete, the development and commercialization of product candidates;



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we face significant competition and there is a possibility that our competitors may achieve regulatory approval before us or develop adoptive cell therapies that are safer or more advanced or effective than ours; product candidates we develop may be complex and difficult to manufacture; the regulatory landscape that will govern any product candidates we may develop is complex and uncertain; failure to comply with laws and regulations could expose us to criminal sanctions, civil penalties, contractual damages, reputational harm and diminished profits and future earnings; Agenus owns a majority of our common stock and will be able to exert control over specific matters subject to stockholder approval; certain of our directors and officers may have actual or potential conflicts of interest; we rely on third parties, which may not perform satisfactorily; if we are not able to establish collaborations, we may have to alter our development and commercialization plans which may cause delays or increase costs; we may be unable to obtain and maintain satisfactory patent and other intellectual property protection for any product candidates we develop; our rights to develop and commercialize our cell-based immunotherapies and product candidates are subject, in part, to the terms and conditions of licenses granted to us by others, including Agenus; third parties may initiate legal proceedings alleging that we are infringing, misappropriating or otherwise violating their intellectual property rights; we may be unable to retain our key executives and to attract, retain and motivate qualified personnel; our internal computer systems, or those of our third-party vendors, collaborators or other contractors or consultants, may fail or suffer security breaches; the continuing outbreak of COVID-19 in the United States and other countries may adversely affect our business and that of our suppliers, contract research organizations or other third parties relevant to our business; and a market for our common stock may not be sustained.

JOBS Act

We qualify as an "emerging growth company" as defined in the Jumpstart Our Business Startups Act of 2012 (the "JOBS Act"). As an emerging growth company, we may take advantage of specified reduced disclosure and other requirements that are otherwise applicable generally to public companies, including reduced disclosure about our executive compensation arrangements, exemption from the requirements to hold non-binding advisory votes on executive compensation and golden parachute payments and exemption from the auditor attestation requirement in the assessment of our internal control over financial reporting.

We may take advantage of these exemptions until the last day of the fiscal year following the fifth anniversary of our initial public offering or such earlier time that we are no longer an emerging growth company. We would cease to be an emerging growth company earlier if we have more than $1.07 billion in annual revenue, we have more than $700.0 million in market value of our stock held by non-affiliates (and we have been a public company for at least 12 months and have filed one annual report on Form 10-K) or we issue more than $1.0 billion of non-convertible debt securities over a three-year period. For so long as we remain an emerging growth company, we are permitted, and intend, to rely on exemptions from certain disclosure requirements that are applicable to other public companies that are not emerging growth companies. We may choose to take advantage of some, but not all, of the available exemptions.

In addition, the JOBS Act provides that an emerging growth company can take advantage of an extended transition period for complying with new or revised accounting standards. This allows an emerging growth company to delay the adoption of certain accounting standards until those standards would otherwise apply to private companies. We have elected not to "opt out" of such extended transition period, which means that when a standard is issued or revised and it has different application dates for public or private companies, we will adopt the new or revised standard at the time private companies adopt the new or revised standard and will do so until such time that we either (i) irrevocably elect to "opt out" of such extended transition period or (ii) no longer qualify as an emerging growth company. Therefore, the reported results of operations contained in our consolidated financial statements may not be directly comparable to those of other public companies.





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