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Monte Rosa to receive $50M Novartis milestone

(High)
(Neutral)
Form Type
8-K

Rhea-AI Filing Summary

Monte Rosa Therapeutics, Inc. (GLUE) announced that collaborator Novartis has initiated a Phase 2 clinical study of the VAV1-directed molecular glue degrader MRT-6160 (DDY391) in people with Sjögren’s disease, triggering a $50 million milestone payment to Monte Rosa under their global license agreement.

Novartis holds exclusive worldwide rights to develop, manufacture and commercialize MRT-6160 and other VAV1-directed molecular glue degraders and is responsible for funding and conducting Phase 2 studies, while Monte Rosa will co-fund any Phase 3 development and share 30% of U.S. profits and losses. Monte Rosa is additionally eligible to receive up to $2.1 billion in development, regulatory and sales milestones, as well as tiered royalties on ex-U.S. net sales.

The Phase 2a/b trial is randomized, double-blind, placebo-controlled and multi-center, evaluating efficacy, safety and tolerability over up to 52 weeks of treatment to support Phase 3 dose selection. Prior Phase 1 data for MRT-6160 showed sustained, dose-dependent VAV1 degradation of greater than 90% in peripheral blood T cells and was generally well tolerated.

Positive

  • $50 million milestone payment from Novartis is now due to Monte Rosa upon the first patient visit in the Phase 2 study, strengthening near-term cash inflows.
  • The Novartis collaboration provides potential for up to $2.1 billion in additional development, regulatory and sales milestones, plus 30% U.S. profit-and-loss sharing and tiered royalties on ex-U.S. net sales.

Negative

  • None.

Filing Explained

The Phase 2 start triggers a $50 million milestone, but the filing does not state that Monte Rosa has received the payment.

Form 8-K reports specified material events, and this filing reports Novartis’s initiation of a Phase 2 study for MRT-6160 in Sjögren’s disease. The initiation triggers a $50 million milestone payment to Monte Rosa.

The disclosure establishes a payment obligation tied to the study milestone, not a reported cash receipt. The separate amount of up to $2.1 billion is potential eligibility across development, regulatory, and sales milestones rather than a committed payment.

Item 7.01 Regulation FD Disclosure Disclosure
Material non-public information disclosed under Regulation Fair Disclosure, often investor presentations or guidance.
Item 8.01 Other Events Other
Voluntary disclosure of events the company deems important to shareholders but not covered by other items.
Item 9.01 Financial Statements and Exhibits Exhibits
Financial statements, pro forma financial information, or exhibit attachments filed with this report.
Milestone payment $50 million Triggered by first patient visit in Phase 2 MRT-6160 study under Novartis agreement
Total potential milestones $2.1 billion Development, regulatory and sales milestones payable to Monte Rosa under Novartis agreement
U.S. profit-and-loss share 30% Monte Rosa share of profits and losses for MRT-6160 commercialization in the U.S.
Phase 2 treatment duration 52 weeks Maximum treatment duration in Phase 2a/b MRT-6160 study in Sjögren’s disease
VAV1 degradation in Phase 1 Greater than 90% Sustained, dose-dependent VAV1 degradation in peripheral blood T cells after MRT-6160 dosing
Sjögren’s disease prevalence 0.25% Approximate proportion of the population affected by Sjögren’s disease
Undiagnosed Sjögren’s disease cases 50% Estimated proportion of people with Sjögren’s disease who are undiagnosed
Clinical programs in pipeline 3 programs Number of Monte Rosa molecular glue degrader programs in the clinic
molecular glue degrader medical
"developing novel molecular glue degrader (MGD)-based medicines"
A molecular glue degrader is a small drug-like molecule that acts like a tiny adhesive, sticking a specific disease-related protein to the cell’s natural disposal machinery so the protein is destroyed rather than merely blocked. Investors watch these compounds because they can turn previously untreatable targets into removable liabilities, potentially creating breakthrough therapies, shifting development risk, and offering strong commercial upside if clinical results and regulatory approval follow.
Phase 2a/b medical
"This study is a Phase 2a/b, randomized, double-blind, placebo-controlled"
Phase 2a/b describes two linked stages of a drug or medical-device clinical trial: 2a focuses on finding the right dose and early signs of effect, while 2b tests whether the chosen dose actually works in a larger group. For investors, results from these stages are major milestones because they reduce scientific uncertainty, influence development costs and timelines, and often trigger licensing, partnerships, or stock-moving news—think of it as moving from a kitchen taste-test to a small restaurant trial run.
Sjögren’s disease medical
"in people living with Sjögren’s disease (SjD), the second most prevalent"
QuEEN™ discovery engine technical
"Monte Rosa’s QuEEN™ (Quantitative and Engineered Elimination of Neosubstrates) discovery engine"
tiered royalties financial
"and is also eligible for tiered royalties on ex-U.S. net sales"
Tiered royalties are a payment structure where the percentage of earnings paid as royalties changes based on different levels of sales or production. For example, a company might pay a smaller percentage on initial sales and a higher percentage as sales increase beyond certain points. This system encourages higher sales by adjusting payments, making it important for investors to understand how revenue sharing may vary as a product or project grows.

FAQ

What milestone did Monte Rosa Therapeutics (GLUE) announce with Novartis?

Monte Rosa announced that Novartis has initiated a Phase 2 clinical study of MRT-6160 (DDY391) in people with Sjögren’s disease. In connection with the first patient visit, Monte Rosa will receive a $50 million milestone payment under their global exclusive license agreement.

How much in total milestones can Monte Rosa Therapeutics (GLUE) receive from Novartis?

Under the Novartis agreement, Monte Rosa is eligible to receive up to $2.1 billion in development, regulatory and sales milestones, beginning upon initiation of Phase 2 studies for VAV1-directed molecular glue degraders, including MRT-6160 (DDY391).

Who funds clinical development of MRT-6160 (DDY391) under the Novartis agreement with GLUE?

Novartis is responsible for conducting and funding Phase 2 studies of MRT-6160 and other VAV1-directed molecular glue degraders. Monte Rosa will co-fund any Phase 3 clinical development and will share 30% of profits and losses associated with MRT-6160 commercialization in the U.S.

What is the design of the Phase 2 study for MRT-6160 reported by GLUE?

The MRT-6160 trial is a Phase 2a/b, randomized, double-blind, placebo-controlled, multi-center study in participants with Sjögren’s disease. It evaluates efficacy, safety and tolerability for up to 52 weeks of treatment and is intended to support dose selection for Phase 3.

What Phase 1 data on MRT-6160 (DDY391) does Monte Rosa highlight?

Monte Rosa reports that in a Phase 1 study, MRT-6160 (DDY391) showed sustained, dose-dependent VAV1 degradation of greater than 90% in peripheral blood T cells after single and multiple doses, along with suppression of key inflammatory biomarkers, and was generally well tolerated with no serious adverse effects observed.

How prevalent is Sjögren’s disease, the target of GLUE’s MRT-6160 Phase 2 trial?

Sjögren’s disease is described as a serious, progressive autoimmune disease affecting approximately 0.25% of the population. It has heterogeneous symptoms and is often unrecognized or misdiagnosed, with an estimated 50% of people with the disease undiagnosed.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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0001826457false00018264572026-09-082026-09-08

 

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

 

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d)

of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): September 8, 2026

MONTE ROSA THERAPEUTICS, INC.

(Exact name of registrant as specified in its charter)

Delaware

001-40522

84-3766197

(State or other jurisdiction
of incorporation)

(Commission
File Number)

(I.R.S. Employer
Identification No.)

321 Harrison Avenue, Suite 900

Boston, MA 02118

(Address of principal executive offices, including zip code)

(617) 949-2643

(Registrant’s telephone number, including area code)

Not Applicable

(Former Name or Former Address, if Changed Since Last Report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class

Trading
Symbol(s)

Name of each exchange
on which registered

Common Stock, $0.0001 par value per share

GLUE

The Nasdaq Global Select Market

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§ 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§ 240.12b-2 of this chapter).

Emerging growth company

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.

 

 


 

Item 7.01. Regulation FD Disclosure

On September 8, 2026, Monte Rosa Therapeutics, Inc. (the “Company”) issued a press release announcing the achievement of a milestone associated with the initiation of a Phase 2 clinical study for the VAV1-directed molecular glue degrader (“MGD”) MRT-6160 (DDY391) in participants with Sjögren’s disease. The study is being conducted by the Company’s collaborator, Novartis AG (“Novartis”). The full text of the press release issued in connection with the announcement is furnished as Exhibit 99.1 to this Current Report on Form 8-K.

The information in Item 7.01 of this Form 8-K (including Exhibit 99.1) shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as expressly set forth by specific reference in such a filing.

Item 8.01. Other Events

As previously disclosed, the Company is party to a global exclusive development and commercialization license agreement (the “Novartis Agreement”) with Novartis pursuant to which Novartis has exclusive worldwide rights to develop, manufacture and commercialize VAV1-directed MGDs, including MRT-6160 (DDY391). Under the terms of the Novartis Agreement, the Company is eligible to receive up to $2.1 billion in development, regulatory, and sales milestones, beginning upon initiation of Phase 2 studies. Pursuant to the terms of the Novartis Agreement, the initiation of the Phase 2 clinical study in the first indication triggered a $50 million milestone payment from Novartis to the Company.

Forward-Looking Statements

This communication includes express and implied “forward-looking statements,” including forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Forward-looking statements include all statements that are not historical facts and in some cases, can be identified by terms such as “may,” “might,” “will,” “could,” “would,” “should,” “expect,” “intend,” “plan,” “objective,” “anticipate,” “believe,” “estimate,” “predict,” “potential,” “continue,” “ongoing,” or the negative of these terms, or other comparable terminology intended to identify statements about the future. Forward-looking statements contained herein include, but are not limited to, statements about the receipt of milestone and other payments under the Novartis Agreement and the future development and commercialization of VAV1-directed MGDs, including MRT-6160 (DDY391), among others.

By their nature, these statements are subject to numerous risks and uncertainties, including those risks and uncertainties set forth in our most recent Annual Report on Form 10-K for the year ended December 31, 2025, filed with the U.S. Securities and Exchange Commission on March 17, 2026, most recent Quarterly Reports on Form 10-Q and any subsequent filings, that could cause actual results, performance or achievement to differ materially and adversely from those anticipated or implied in the statements, as well as the risk that initial or interim results from a clinical trial may not be predictive of the final results of the trial or the results of future trials. You should not rely upon forward-looking statements as predictions of future events. Although our management believes that the expectations reflected in our statements are reasonable, we cannot guarantee that the future results, performance, or events and circumstances described in the forward-looking statements will be achieved or occur. Recipients are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date such statements are made and should not be construed as statements of fact. We undertake no obligation to publicly update any forward-looking statements, whether as a result of new information, any future presentations, or otherwise, except as required by applicable law. Certain information contained in these materials and any statements made orally during any presentation of these materials that relate to the materials or are based on studies, publications, surveys and other data obtained from third-party sources and our own internal estimates and research. While we believe these third-party studies, publications, surveys and other data to be reliable as of the date of these materials, we have not independently verified, and make no representations as to the adequacy, fairness, accuracy or completeness of, any information obtained from third-party sources. In addition, no independent source has evaluated the reasonableness or accuracy of our internal estimates or research and no reliance should be made on any information or statements made in these materials relating to or based on such internal estimates and research.

 

 

 

 


 

Item 9.01. Financial Statements and Exhibits

(d) Exhibits

99.1

Press Release issued by Monte Rosa Therapeutics, Inc. dated September 8, 2026.

104

Cover Page Interactive Data File (embedded within the Inline XBRL document).

 

 

 


 

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

 

 

 

 

 

 

 

 

 

Monte Rosa Therapeutics, Inc.

 

 

 

 

Date: September 8, 2026

 

By:

/s/ Markus Warmuth

 

 

 

Markus Warmuth

 

 

 

President and Chief Executive Officer

 

 

 


img106802192_0.jpg

 

Exhibit 99.1

 

Monte Rosa Therapeutics Announces Milestone Achievement Associated with Initiation of Phase 2 Clinical Study for VAV1-directed Molecular Glue Degrader MRT-6160 (DDY391)

 

Phase 2 study to be conducted in participants with Sjögren’s disease

 

Novartis conducting study under global exclusive development and commercialization license agreement with Monte Rosa

 

Monte Rosa to receive milestone payment based on first patient visit of Phase 2 clinical study

 

Additional studies expected to evaluate the potential of MRT-6160 (DDY391) across immune-mediated diseases; Monte Rosa eligible for additional Phase 2 study initiation milestones

 

 

BOSTON, Mass., September 8, 2026 Monte Rosa Therapeutics, Inc. (Nasdaq: GLUE), a clinical-stage biotechnology company developing novel molecular glue degrader (MGD)-based medicines, today announced that its collaborator Novartis has initiated a Phase 2 clinical study for the VAV1-directed MGD MRT-6160 (DDY391) in people living with Sjögren’s disease (SjD), the second most prevalent rheumatic autoimmune disease1. This study is the first of several studies expected for MRT-6160 (DDY391) and part of a global exclusive development and commercialization license agreement between Monte Rosa and Novartis to advance VAV1 MGDs including MRT-6160 (DDY391). In connection with the first patient visit of the study, Monte Rosa will receive a $50 million milestone payment from Novartis.

 

“We are very pleased that Novartis is advancing MRT-6160 into clinical development for Sjögren’s disease by launching a global Phase 2 study,” said Markus Warmuth, M.D., Chief Executive Officer of Monte Rosa Therapeutics. “Sjögren’s disease is not only an area of high unmet medical need, but also an indication driven by both pathogenic autoimmune T cells and B cells and so well-aligned with the biological effects of a VAV1-directed MGD. We believe this milestone reflects the strong progress being made in the program, and further validates the potential of our QuEEN™ product engine to address disease-driving proteins that have long been considered undruggable. We look forward to the continued development of MRT-6160, and to building on the momentum across our partnered and wholly owned pipeline as we work to bring meaningful new therapeutic options to patients.”

 

This study is a Phase 2a/b, randomized, double-blind, placebo-controlled, multi-center trial to evaluate efficacy, safety, and tolerability of up to 52 weeks of treatment with MRT-6160 (DDY391) in participants with Sjögren's disease, to support dose selection for Phase 3. More information about the study, “A Phase 2a/b Study to Assess the Efficacy, Safety and Tolerability of DDY391 in Participants With Sjögren's Disease,” can be found at ClinicalTrials.gov, study identifier: NCT07737743.

 

MRT-6160 (DDY391) is a potent, highly selective, and orally bioavailable investigational molecular glue degrader of VAV1, a key signaling protein downstream of both the T- and B-cell receptors. Available preclinical and clinical data support the potential of MRT-6160 (DDY391) to address multiple immune-mediated diseases. In a Phase 1 study, MRT-6160 (DDY391) demonstrated sustained, dose-dependent VAV1

 


img106802192_0.jpg

 

degradation of greater than 90% in peripheral blood T cells after single and multiple-dose administration, as well as suppression of key inflammatory biomarkers. The administration of MRT-6160 (DDY391) was generally well tolerated, with no serious adverse effects observed.

 

About Sjögren’s Disease

Sjögren’s disease is a serious, progressive, autoimmune disease that affects approximately 0.25% of the population2 and impacts multiple organs, causing a wide spectrum of symptoms such as dryness, fatigue, pain, and an increased risk of lymphoma, which can carry a significant burden and impact on quality of life3,4. Its heterogeneous nature often causes it to go unrecognized or misdiagnosed5. It is estimated that 50% of people with Sjögren’s disease are undiagnosed6.

 

Novartis Agreement Details

Monte Rosa has a global exclusive development and commercialization license agreement with Novartis to advance VAV1-directed MGDs, including MRT-6160. Under the terms of the agreement, Novartis has exclusive worldwide rights to develop, manufacture and commercialize MRT-6160 and other VAV1 MGDs and is responsible for all clinical development and commercialization, starting with Phase 2 clinical studies. Monte Rosa is eligible to receive up to $2.1 billion in development, regulatory, and sales milestones, beginning upon initiation of Phase 2 studies. Novartis is responsible for conducting and funding Phase 2 studies. Monte Rosa will co-fund any Phase 3 clinical development and will share 30% of any profits and losses associated with the manufacturing and commercialization of MRT-6160 in the U.S., and is also eligible for tiered royalties on ex-U.S. net sales.

 

About Monte Rosa

Monte Rosa Therapeutics is a clinical-stage biotechnology company developing highly selective molecular glue degrader (MGD) medicines for patients living with serious diseases. MGDs are small molecule protein degraders that have the potential to treat many diseases that other modalities, including other degraders, cannot. Monte Rosa’s QuEEN™ (Quantitative and Engineered Elimination of Neosubstrates) discovery engine combines AI-guided chemistry, diverse chemical libraries, structural biology, and proteomics to rationally design MGDs with unprecedented selectivity. Monte Rosa has developed the industry’s leading pipeline of first-in-class and only-in-class MGDs, spanning autoimmune and inflammatory diseases, oncology, and beyond, with three programs in the clinic. Monte Rosa has ongoing collaborations with leading pharmaceutical companies in the areas of immunology, oncology, and neurology. For more information, visit www.monterosatx.com.

 

References

 

1.
National Academies of Sciences, Engineering, and Medicine; Health and Medicine Division; Board on Health Care Services; Committee on Selected Immune Disorders and Disability. Sjögren’s Disease/Syndrome. [Last accessed: December 2025] https://www.ncbi.nlm.nih.gov/books/NBK584486/
2.
Conrad N, et al. Incidence, prevalence, and co-occurrence of autoimmune disorders over time and by age, sex, and socioeconomic status: a population-based cohort study of 22 million individuals in the UK. Lancet. 2023;401(10391):1878–1890
3.
Negrini S, et al. Sjögren’s syndrome: a systemic autoimmune disease. Clin Exp Med. 2022; 22(1):9–25
4.
Mariette X, Criswell LA. Primary Sjögren’s symptoms. N Engl J Med. 2018;378:931–939

 


img106802192_0.jpg

 

5.
Gairy K, et al. Burden of illness among subgroups of patients with primary Sjögren’s syndrome and systemic involvement. Rheumatology. 2021; 60(4):1871–188
6.
Narváez J, et al. Prevalence of Sjögren’s syndrome in the general adult population in Spain: estimating the proportion of undiagnosed cases. Sci Rep. 2020;10(1):10627

 

Forward-Looking Statements

This communication includes express and implied “forward-looking statements,” including forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Forward-looking statements include all statements that are not historical facts and in some cases, can be identified by terms such as “may,” “might,” “will,” “could,” “would,” “should,” “expect,” “intend,” “plan,” “objective,” “anticipate,” “believe,” “estimate,” “predict,” “potential,” “continue,” “ongoing,” or the negative of these terms, or other comparable terminology intended to identify statements about the future. Forward-looking statements contained herein include, but are not limited to, statements about the ongoing development of our VAV1-directed MGD, referred to as DDY391 (formerly designated MRT-6160), including the Phase 2 clinical study in participants with Sjögren’s disease being conducted by Novartis, our expectations regarding the potential of DDY391 to address multiple immune-mediated diseases, statements regarding additional Phase 2 studies expected to evaluate DDY391 across immune-mediated diseases and associated milestone payments, statements about Monte Rosa’s eligibility to receive milestone payments from Novartis, including upon initiation of Phase 2 studies, and up to $2.1 billion in development, regulatory, and sales milestones, statements regarding the global exclusive development and commercialization license agreement with Novartis, statements about the potential of our QuEEN™ discovery engine to address disease-driving proteins that have long been considered undruggable, statements around the advancement and application of our pipeline, including our partnered and wholly owned programs, our ability to optimize collaborations with industry partners on our development programs, and our expectations of success for our programs and the strength of our financial position, among others. By their nature, these statements are subject to numerous risks and uncertainties, including those risks and uncertainties set forth in our most recent Annual Report on Form 10-K for the year ended December 31, 2025, filed with the U.S. Securities and Exchange Commission on March 17, 2026, and any subsequent filings, that could cause actual results, performance or achievement to differ materially and adversely from those anticipated or implied in the statements. You should not rely upon forward-looking statements as predictions of future events. Although our management believes that the expectations reflected in our statements are reasonable, we cannot guarantee that the future results, performance, or events and circumstances described in the forward-looking statements will be achieved or occur. Recipients are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date such statements are made and should not be construed as statements of fact. We undertake no obligation to publicly update any forward-looking statements, whether as a result of new information, any future presentations, or otherwise, except as required by applicable law. Certain information contained in these materials and any statements made orally during any presentation of these materials that relate to the materials or are based on studies, publications, surveys and other data obtained from third-party sources and our own internal estimates and research. While we believe these third-party studies, publications, surveys and other data to be reliable as of the date of these materials, we have not independently verified, and make no representations as to the adequacy, fairness, accuracy or completeness of, any information obtained from third-party sources. In addition, no independent source has evaluated the reasonableness or accuracy of our internal estimates or research and no reliance should be made on any information or statements made in these materials relating to or based on such internal estimates and research.

 

 


img106802192_0.jpg

 

Investors
Andrew Funderburk

ir@monterosatx.com

 

Media
Cory Tromblee, Scient PR

media@monterosatx.com

 

###

 

 


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