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Immunome Inc.

For the period ended Sep 30, 2026. Filed Nov 9, 2026.

View on SEC.gov

About this filing

A company's report for each of its first three quarters. The financial statements are not audited. It shows how the business has moved since the last annual report, and what management says changed.

Sep 30, 2026 · Filed Nov 9, 2026

IMNM$19.36+3.5%Stored close · as of Nov 9, 2026

What changed in Risk Factors?

Read the current filing

Previous report: 10-Q

Period ended 2026-06-30; filed 2026-08-11.

0001193125-26-344636

Item 1A. Risk Factors

Current report: 10-Q

Period ended 2026-09-30; filed 2026-11-09.

0001193125-26-453597

Item 1A. Risk Factors

The baseline is this issuer’s latest earlier reporting period of the same form that was filed before the current report. A previous 10-Q is a different quarter, not a year-over-year comparison. Amendments are excluded.

Compared 446 previous paragraphs and 446 current paragraphs.

433 unchanged; 13 reworded; 0 added; 0 removed; 0 previous and 0 current paragraphs rearranged.

Tables are not compared: 0 previous and 0 current tables excluded. Dates, whitespace, punctuation and numbering changes are ignored; changes to financial figures remain significant.

A changed paragraph is not evidence that risk increased or decreased. An unchanged paragraph does not establish that risk stayed the same.

Reworded paragraphs (13)

Previous wording

We have submitted an NDA for one of our product candidates, but we have not submitted a Biologics License Application, or BLA, obtained FDA approval for marketing, or successfully commercialized a product, and we may be unable to do so.

Current wording

We have submitted an NDA and MAA for one of our product candidates, but we have not submitted a Biologics License Application, or BLA, obtained FDA or European approval for marketing, or successfully commercialized a product, and we may be unable to do so.

Previous wording

We are a biotechnology company with a history of losses. Since our inception, we have devoted substantially all of our resources to research and development, raising capital, pursuing strategic transactions, building our management team and building our intellectual property portfolio, and we have incurred significant operating losses. As of June 30, 2026, we had an accumulated deficit of $855.1 million. Our net loss for the year ended December 31, 2025 was $212.4 million and was $127.0 million for the six months ended June 30, 2026. To date, we have not generated any revenue from product sales, and we have not identified or sought or obtained regulatory approval for the marketing or sale of any product. Furthermore, we may not generate any revenue from product sales for the foreseeable future, and we expect to continue to incur significant operating losses for the foreseeable future due to the cost of research and development activities and the regulatory approval process for our programs and product candidates.

Current wording

We are a biotechnology company with a history of losses. Since our inception, we have devoted substantially all of our resources to research and development, raising capital, pursuing strategic transactions, building our management team and building our intellectual property portfolio, and we have incurred significant operating losses. As of September 30, 2026, we had an accumulated deficit of $940.9 million. Our net loss for the year ended December 31, 2025 was $212.4 million and was $212.7 million for the nine months ended September 30, 2026. To date, we have not generated any revenue from product sales, and we have not identified or sought or obtained regulatory approval for the marketing or sale of any product. Furthermore, we may not generate any revenue from product sales for the foreseeable future, and we expect to continue to incur significant operating losses for the foreseeable future due to the cost of research and development activities and the regulatory approval process for our programs and product candidates.

Previous wording

We have submitted an NDA for one of our product candidates, but we have not submitted a Biologics License Application, or BLA, obtained FDA approval for marketing, or successfully commercialized a product, and we may be unable to do so.*

Current wording

We have submitted an NDA and MAA for one of our product candidates, but we have not submitted a Biologics License Application, or BLA, obtained FDA or European approval for marketing, or successfully commercialized a product, and we may be unable to do so.*

Previous wording

As an organization, we have not yet demonstrated an ability to obtain regulatory approvals for marketing, manufacture a commercial-scale product, conduct sales and marketing activities necessary for successful commercialization, or arrange for a third party to do any of the foregoing on our behalf. Prior to obtaining approval to commercialize a product candidate in the United States or elsewhere, we must demonstrate with substantial evidence from well-controlled clinical trials, and to the satisfaction of the FDA or comparable foreign regulatory authorities, that such product candidates are safe and effective for their intended uses. Except for our recently completed Phase 3 RINGSIDE trial for varegacestat, we have not previously completed any clinical trials for any of our current product candidates. We also have limited experience as a company in preparing and submitting marketing applications and, although we recently submitted an NDA for varegacestat, which has been accepted by the FDA and assigned a PDUFA target action date of April 28, 2027, we have not previously submitted a BLA, or foreign regulatory submission comparable to an NDA or BLA for any product candidate. In addition, we have had limited interactions with the FDA or other comparable foreign regulatory authorities and cannot be certain how many additional clinical trials of our product candidates will be required or how such additional trials should be designed. Consequently, we may be unable to successfully and efficiently execute and complete necessary clinical trials in a way that leads to submission of an application for and obtaining regulatory approval of any of our product candidates. Notably, varegacestat’s prior development was largely conducted by Ayala. As a result, our assumptions about varegacestat’s potential are based in large part on the data generated from clinical trials conducted by Ayala as well as our own completion of the Phase 3 RINGSIDE trial, and we may observe materially and adversely different results in future clinical trials or commercial use. In addition, results from nonclinical studies and clinical trials can be interpreted in different ways. Further, even if we believe the nonclinical or clinical data for our product candidates is promising, compliance or data integrity issues may later arise and even if not, the data may not be sufficient to support approval by the FDA or comparable foreign regulatory authorities. Marketing approval or any other applications that we may submit may be delayed by several years or may require us to expend significantly more resources than we have available.

Current wording

As an organization, we have not yet demonstrated an ability to obtain regulatory approvals for marketing, manufacture a commercial-scale product, conduct sales and marketing activities necessary for successful commercialization, or arrange for a third party to do any of the foregoing on our behalf. Prior to obtaining approval to commercialize a product candidate in the United States or elsewhere, we must demonstrate with substantial evidence from well-controlled clinical trials, and to the satisfaction of the FDA or comparable foreign regulatory authorities, that such product candidates are safe and effective for their intended uses. Except for our recently completed Phase 3 RINGSIDE trial for varegacestat, we have not previously completed any clinical trials for any of our current product candidates. We also have limited experience as a company in preparing and submitting marketing applications and, although we recently submitted an MAA for varegacestat to the EMA and an NDA for varegacestat to the FDA, which was assigned a PDUFA target action date of April 28, 2027, we have not previously submitted a BLA. In addition, we have had limited interactions with the FDA or other comparable foreign regulatory authorities and cannot be certain how many additional clinical trials of our product candidates will be required or how such additional trials should be designed. Consequently, we may be unable to successfully and efficiently execute and complete necessary clinical trials in a way that leads to submission of an application for and obtaining regulatory approval of any of our product candidates. Notably, varegacestat’s prior development was largely conducted by Ayala. As a result, our assumptions about varegacestat’s potential are based in large part on the data generated from clinical trials conducted by Ayala as well as our own completion of the Phase 3 RINGSIDE trial, and we may observe materially and adversely different results in future clinical trials or commercial use. In addition, results from nonclinical studies and clinical trials can be interpreted in different ways. Further, even if we believe the nonclinical or clinical data for our product candidates is promising, compliance or data integrity issues may later arise and even if not, the data may not be sufficient to support approval by the FDA or comparable foreign regulatory authorities. Marketing approval or any other applications that we may submit may be delayed by several years or may require us to expend significantly more resources than we have available.

Previous wording

Some of our product candidates are in the early stages of development efforts, and we will need to continue to progress our product candidates through preclinical studies and submit INDs to the FDA or appropriate regulatory documents to applicable foreign authorities prior to initiating their clinical development. We have three early clinical stage assets that are currently or are expected to soon be under evaluation in Phase 1 trials. We have no products on the market that have gained regulatory approval and despite the positive results of the Phase 3 RINGSIDE trial and our NDA submission for varegacestat, the NDA may not be approved by the FDA. Our ability to generate revenue and achieve and sustain profitability depends on our ability to continue to identify programs and nominate product candidates, advance them into preclinical and clinical development and obtain regulatory approvals for and successfully commercializing them, either alone or through a collaboration.

Current wording

Some of our product candidates are in the early stages of development efforts, and we will need to continue to progress our product candidates through preclinical studies and submit INDs to the FDA or appropriate regulatory documents to applicable foreign authorities prior to initiating their clinical development. We have four early clinical stage assets that are currently or are expected to soon be under evaluation in Phase 1 trials. We have no products on the market that have gained regulatory approval and despite the positive results of the Phase 3 RINGSIDE trial and our NDA and MAA submissions for varegacestat, the NDA and MAA may not be approved. Our ability to generate revenue and achieve and sustain profitability depends on our ability to continue to identify programs and nominate product candidates, advance them into preclinical and clinical development and obtain regulatory approvals for and successfully commercializing them, either alone or through a collaboration.

Previous wording

In the natural course of progressing our product candidates, we may make decisions about prioritization that may prove to be incorrect. In addition, because we have limited financial and other resources, we may be limited in our ability to pursue all potential product candidates of interest, including IM-1021, IM-1617, IM-3050 and varegacestat, even if we would otherwise choose to do so if these limitations did not exist. For these reasons, we may fail to capitalize on viable opportunities. If we do not accurately evaluate the commercial potential or target market for a program or product candidate, we may relinquish valuable rights to it through partnership, licensing or other royalty arrangements in cases in which it would have been more advantageous for us to retain sole development and commercialization rights.

Current wording

In the natural course of progressing our product candidates, we may make decisions about prioritization that may prove to be incorrect. In addition, because we have limited financial and other resources, we may be limited in our ability to pursue all potential product candidates of interest, including IM-1021, IM-1617, IM-3050, IM-1340 and varegacestat, even if we would otherwise choose to do so if these limitations did not exist. For these reasons, we may fail to capitalize on viable opportunities. If we do not accurately evaluate the commercial potential or target market for a program or product candidate, we may relinquish valuable rights to it through partnership, licensing or other royalty arrangements in cases in which it would have been more advantageous for us to retain sole development and commercialization rights.

Previous wording

With respect to varegacestat, we expect to compete with companies advancing treatments for desmoid tumors, including Merck KGaA (successor to SpringWorks Therapeutics, Inc.) and Parabilis Medicines, Inc. Merck KGaA received approval from FDA in November 2023 and from EMA in August 2025 for its oral gamma secretase inhibitor, OGSIVEO®(nirogacestat), for the treatment of adult patients with progressing tumors who require systemic treatment. Parabilis is evaluating the small molecule zolucatetide in a Phase 1/2 study that includes patients with desmoid tumors. Desmoid tumor treatments also include surgery, hormonal therapy, cryotherapy, targeted therapy and chemotherapy. We cannot predict the nature or extent of any impact that the acquisition of SpringWorks by Merck KGaA will have on the competitive landscape for varegacestat.

Current wording

With respect to varegacestat, we expect to compete with companies advancing treatments for desmoid tumors, including Merck KGaA (successor to SpringWorks Therapeutics, Inc.) and Parabilis Medicines, Inc. Merck KGaA received approval from FDA in November 2023 and from EMA in August 2025 for its oral gamma secretase inhibitor, OGSIVEO®(nirogacestat), for the treatment of adult patients with progressing tumors who require systemic treatment. Parabilis is evaluating the small molecule zolucatetide in a Phase 1/2 study that includes patients with desmoid tumors and plans to initiate a phase 3 registrational trial in 2027. Desmoid tumor treatments also include surgery, hormonal therapy, cryotherapy, targeted therapy and chemotherapy. We cannot predict the nature or extent of any impact that the acquisition of SpringWorks by Merck KGaA will have on the competitive landscape for varegacestat.

Previous wording

IM-1021 is a ROR1 ADC program with the potential to address hematologic and solid tumor indications. We are aware of several other companies developing therapeutics, including ADCs, targeting ROR1, and they may represent direct competition to our ROR1 ADC program. For example, Merck has a ROR1 ADC program (Zilovertamab vedotin) in a Phase 3 clinical trial for diffuse large B-cell lymphoma, and CStone Pharmaceuticals, Inc. has disclosed a ROR1 ADC program in clinical development.

Current wording

IM-1021 is a ROR1 ADC program with the potential to address hematologic and solid tumor indications. We are aware of several other companies developing therapeutics, including ADCs, targeting ROR1, and they may represent direct competition to our ROR1 ADC program. For example, Merck has a ROR1 ADC program (Zilovertamab vedotin) in Phase 3 clinical trials for diffuse large B-cell lymphoma, and CStone Pharmaceuticals, Inc. has disclosed a ROR1 ADC program in clinical development.

Previous wording

We are not aware of any competitive ADC that pursues IM-1617's target. The most direct competition may come from other oncology companies pursuing the same indications that we may ultimately select for pivotal development.

Current wording

We are not aware of any competitive ADCs that pursue IM-1617's or IM-1340's targets. The most direct competition may come from other oncology companies pursuing the same indications that we may ultimately select for pivotal development.

Previous wording

We cannot be sure that coverage and reimbursement will be available for, or accurately estimate the potential revenue from, our product candidates or assure that coverage and reimbursement will be available for any product that we may develop. The regulations that govern marketing approvals, pricing and reimbursement for new drug and biological products vary widely from country to country. Some countries require approval of the sale price of a drug or biologic before it can be marketed. In many countries, the pricing review period begins after marketing or product approval is granted. In some foreign markets, prescription pharmaceutical pricing remains subject to continuing governmental control even after initial approval is granted. We are monitoring these regulations as several of our programs move into later stages of development, including varegacestat for which we submitted an NDA in the second quarter 2026, which was accepted by the FDA and assigned a PDUFA date of April 28, 2027; however, a majority of our programs are currently in the earlier stages of development and we will not be able to assess the impact of price regulations for a number of years. As a result, we might obtain regulatory approval for a product in a particular country, but then be subject to price regulations that could delay our commercial launch of the product and negatively impact any potential revenues we may be able to generate from the sale of the product in that country and potentially in other countries due to reference pricing.

Current wording

We cannot be sure that coverage and reimbursement will be available for, or accurately estimate the potential revenue from, our product candidates or assure that coverage and reimbursement will be available for any product that we may develop. The regulations that govern marketing approvals, pricing and reimbursement for new drug and biological products vary widely from country to country. Some countries require approval of the sale price of a drug or biologic before it can be marketed. In many countries, the pricing review period begins after marketing or product approval is granted. In some foreign markets, prescription pharmaceutical pricing remains subject to continuing governmental control even after initial approval is granted. We are monitoring these regulations as several of our programs move into later stages of development, including varegacestat for which we submitted an NDA in April 2026, which was accepted by the FDA and assigned a PDUFA date of April 28, 2027; however, a majority of our programs are currently in the earlier stages of development and we will not be able to assess the impact of price regulations for a number of years. As a result, we might obtain regulatory approval for a product in a particular country, but then be subject to price regulations that could delay our commercial launch of the product and negatively impact any potential revenues we may be able to generate from the sale of the product in that country and potentially in other countries due to reference pricing.

Previous wording

As of June 30, 2026, we had 247 full-time employees. The continued operation of our business and execution of our plans will require material additional staffing within the next twelve months. We cannot provide assurance that we will be able to hire or retain adequate staffing levels to advance our ADC platform, develop our programs or product candidates or run our operations or to accomplish our objectives.

Current wording

As of September 30, 2026, we had 267 full-time employees. The continued operation of our business and execution of our plans will require material additional staffing within the next twelve months. We cannot provide assurance that we will be able to hire or retain adequate staffing levels to advance our ADC platform, develop our programs or product candidates or run our operations or to accomplish our objectives.

Previous wording

We issued 2,298,586 shares to Zentalis in connection with the Zentalis License Agreement, 2,175,489 shares to Ayala in connection with the Ayala Purchase Agreement, 230,415 shares to BMS in connection with the BMS License Agreement Amendment and 1,805,502 shares to Zentalis in connection with the Zentalis Asset Purchase, all of which are registered for resale on Forms S-3 filed with the SEC in April 2024, October 2024 and November 2024, respectively. The shares issued to Zentalis in October 2024 are subject to an orderly market disposition for one year from the date of issuance. Any sales of these shares may cause our stock price to fall.

Current wording

We issued (i) 2,298,586 shares to Zentalis in connection with the Zentalis License Agreement, (ii) 2,175,489 shares to Ayala in connection with the Ayala Purchase Agreement, (iii) 230,415 shares to BMS in connection with Amendment No. 2 to the BMS License Agreement, (iv) 1,805,502 shares to Zentalis in connection with the Zentalis Asset Purchase, and (v) 4,425,487 shares to BMS in connection with Amendment No. 4 to the BMS License Agreement. The shares issued in connection with items (i)-(iv) are registered for resale on Forms S-3 filed with the SEC in April 2024, April 2024, October 2024 and November 2024, respectively. The shares issued in connection with item (v) will be registered for resale on a Form S-3 to be filed with the SEC on the date of this Quarterly Report. Any sales of these shares may cause our stock price to fall.

Previous wording

Additionally, the number of shares of our common stock reserved for issuance under our 2020 Plan will automatically increase on January 1 of each year, beginning on January 1, 2021 and continuing through and including January 1, 2030, by 4% of the total number of shares of our capital stock outstanding on December 31 of the preceding calendar year, or a lesser number of shares determined by our board of directors. Unless our board of directors elects not to increase the number of shares available for future grant each year, our stockholders may experience additional dilution, which could cause our stock price to fall. Additionally, pursuant to Morphimmune Inc.’s 2020 Equity Incentive Plan, or the Morphimmune Plan, the aggregate number of shares that may be issued pursuant to stock awards under the Morphimmune Plan as of June 30, 2026 may not exceed 2,822,308 shares. Although we did not initially anticipate issuing awards under the Morphimmune Plan, depending on our needs, we may in the future issue awards under the Morphimmune Plan. Additionally, on June 28, 2023, Clay Siegall was granted options to purchase shares of the Company’s common stock pursuant to an Inducement Grant. The aggregate number of stock awards that may be issued under the Inducement Grant may not exceed 2,137,080 shares.

Current wording

Additionally, the number of shares of our common stock reserved for issuance under our 2020 Plan will automatically increase on January 1 of each year, beginning on January 1, 2021 and continuing through and including January 1, 2030, by 4% of the total number of shares of our capital stock outstanding on December 31 of the preceding calendar year, or a lesser number of shares determined by our board of directors. Unless our board of directors elects not to increase the number of shares available for future grant each year, our stockholders may experience additional dilution, which could cause our stock price to fall. Additionally, pursuant to Morphimmune Inc.’s 2020 Equity Incentive Plan, or the Morphimmune Plan, the aggregate number of shares that may be issued pursuant to stock awards under the Morphimmune Plan as of September 30, 2026 may not exceed 2,822,308 shares. We have, and, depending on our needs, we may in the future issue awards under the Morphimmune Plan. Additionally, on June 28, 2023, Clay Siegall was granted options to purchase shares of the Company’s common stock pursuant to an Inducement Grant. The aggregate number of stock awards that may be issued under the Inducement Grant may not exceed 2,137,080 shares.