Form 8-K

8-K — Monte Rosa Therapeutics, Inc.

Accession: 0001193125-26-448527

Filed: 2026-11-05

Period: 2026-11-05

CIK: 0001826457

SIC: 2836 (BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES))

Item: Results of Operations and Financial Condition

Item: Financial Statements and Exhibits

Documents

8-K — glue-20261105.htm (Primary)

EX-99.1 (glue-ex99_1.htm)

GRAPHIC (img106802192_0.jpg)

GRAPHIC (img106802192_1.jpg)

XML — IDEA: XBRL DOCUMENT (R1.htm)

8-K

8-K (Primary)

Filename: glue-20261105.htm · Sequence: 1

8-K

false000182645700018264572026-11-052026-11-05

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): November 5, 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 2.02. Results of Operations and Financial Condition

On November 5, 2026, Monte Rosa Therapeutics, Inc. (the "Company") announced its financial results for the quarter ended September 30, 2026. 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 under Item 2.02 in this Current Report on 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 9.01. Financial Statements and Exhibits

(d) Exhibits

99.1

Press Release issued by Monte Rosa Therapeutics, Inc. dated November 5, 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: November 5, 2026

By:

/s/ Markus Warmuth

Markus Warmuth

President and Chief Executive Officer

EX-99.1

Filename: glue-ex99_1.htm · Sequence: 2

EX-99.1

Exhibit 99.1

Monte Rosa Therapeutics Announces Third Quarter 2026 Financial Results and Business Updates

Positive GFORCE-1 Phase 1 results showed MRT-8102 reduced key pathogenic drivers of atherosclerotic cardiovascular disease (ASCVD) to levels comparable to healthy volunteers across all three dose levels, with treatment-emergent adverse event rates comparable to placebo; Phase 2 initiation in coronary artery disease anticipated in H1 2027

Initiation of Phase 2 study of MRT-8102 in gout expected in Q4 2026, with data update expected in H2 2027; additional Phase 2 initiation in hidradenitis suppurativa anticipated in H1 2027

Initiated MODeFIRe-1 Phase 2 study of MRT-2359 in combination with apalutamide in heavily pretreated metastatic castration-resistant prostate cancer (mCRPC) patients with androgen receptor (AR) mutations; Phase 2 data update expected in 2027; updated Phase 1/2 study data expected this year

Novartis initiated Phase 2a/b studies of VAV1-directed MGD MRT-6160 (DDY391) in Sjögren’s disease and psoriatic arthritis, triggering a total of $87.5 million in Phase 2 milestone payments to date to Monte Rosa

Strong balance sheet with cash, cash equivalents, restricted cash, and marketable securities of $582.6 million (not including MRT-6160 Phase 2 initiation milestones) as of September 30, 2026, expected to support operations into 2029

BOSTON, Mass., Nov. 5, 2026 – Monte Rosa Therapeutics, Inc. (Nasdaq: GLUE), a clinical-stage biotechnology company developing novel molecular glue degrader (MGD)-based medicines, today announced business highlights and financial results for the third quarter ended September 30, 2026.

“The last quarter marks a tremendously important step forward for our clinical portfolio, with a positive readout from the GFORCE-1 study of MRT-8102, the initiation of Phase 2 development for MRT-2359, and the advancement of our partnered VAV1 program into two Phase 2 studies,” said Markus Warmuth, M.D., Chief Executive Officer of Monte Rosa Therapeutics. “The GFORCE-1 results reinforce our view that targeting NEK7 at the top of the NLRP3 signaling cascade could address a broader set of disease drivers than targeting individual downstream cytokines. Our planned Phase 2 studies in coronary artery disease (CAD), gout, and hidradenitis suppurativa, conditions with major unmet needs, are intended to deepen our understanding of the therapeutic potential of NEK7 degradation. In CAD, our innovative study design integrates molecular and imaging-based readouts to explore how MRT-8102’s broad biological activity translates into changes in coronary plaque biology, to inform patient selection and design for an efficient future Phase 3 study.”

Dr. Warmuth continued: “We are particularly excited about the opportunity in gout, where there is a substantial unmet need for effective flare prevention that is well tolerated with prolonged use. With the emergence of next-generation urate-lowering drugs and their propensity to induce flares in the first 6 to 12 months of use, we believe the need for a well-tolerated, non-immunosuppressive flare prevention treatment will only increase. We expect initial data from our Phase 2 gout study in H2 2027. Across the broader pipeline, we are pursuing a focused development strategy for MRT-2359 through MODeFIRe-1, evaluating its potential in combination with apalutamide in mCRPC patients with AR mutations. We have shown previously that degradation of GSPT1 dampens MYC signaling in CRPC, a pathway we believe is

moving to center stage for new treatment options in CRPC. We look forward to a data update from this Phase 2 study in 2027, as well as a final data update from our completed Phase 1/2 study of MRT-2359 in combination with enzalutamide by year-end. Novartis’s advancement of MRT-6160 (DDY391) into Phase 2 studies in Sjögren’s disease and psoriatic arthritis expands the evaluation of VAV1 degradation across immune-mediated diseases and brings additional non-dilutive funding to Monte Rosa. With our balance sheet expected to support operations into 2029, we are well positioned to pursue these opportunities while maintaining a disciplined focus on generating clinical evidence and advancing our pipeline.”

RECENT HIGHLIGHTS

MRT-8102, NEK7-directed MGD for inflammatory diseases driven by NEK7/NLRP3 and IL-1

•

In October, Monte Rosa reported positive results from GFORCE-1 (NCT07119125), a Phase 1 study of MRT-8102 in 108 obese subjects with elevated cardiovascular disease risk. Across all three dose levels, MRT-8102 achieved median NEK7 degradation of approximately 80% to 90%. MRT-8102 also resulted in substantial reductions of IL-1β as well as HMGB1, calprotectin, S100A12, and SAA, damage-associated molecular patterns (DAMPs) linked to pathogenic biology within atherosclerotic plaques and vessel walls. MRT-8102 was well tolerated, with no serious adverse events, adverse event rates similar to placebo, and no evidence of increased infection risk.

•

With dose selection informed by the GFORCE-1 data, Monte Rosa plans to initiate three Phase 2 studies of MRT-8102:

GEMINI-1, a Phase 2 study in patients with gout, is expected to initiate in Q4 2026. The study will evaluate prevention of flare recurrence following management of acute flares, with initial data expected in H2 2027.

GFORCE-2, a focused Phase 2b study in patients with stable coronary artery disease and residual inflammation, is expected to initiate in H1 2027. The study is expected to evaluate imaging-based coronary artery plaque assessment, such as fat attenuation index (FAI), along with NLRP3 genetics and molecular drivers of local disease pathogenesis and systemic inflammation, to inform the design of an innovative and efficient Phase 3 study focused on the most disease-modifiable patient population.

GALAXY-1, a Phase 2 study in patients with moderate to severe hidradenitis suppurativa, is expected to initiate in H1 2027.

•

Due to prioritization of the MRT-8102 Phase 2 study initiations, Investigational New Drug (IND) submission for the next-generation NEK7 MGD is now anticipated in 2027.

MRT-2359, GSPT1-directed MGD for mCRPC

•

In August, Monte Rosa dosed the first patient in MODeFIRe-1 (NCT07745361), a Phase 2 study of MRT-2359 in combination with apalutamide in AR-mutant mCRPC patients who received prior treatment with a second-generation AR inhibitor. The study will enroll up to 25 patients, with MRT-2359 administered orally at 0.5 mg on a 21 days on, 7 days off schedule. Endpoints include PSA response, RECIST response, duration of response, radiographic progression-free survival, PSA progression-free survival, and safety. Monte Rosa has a clinical supply agreement with Johnson & Johnson to support the study.

•

Enrollment in the initial Phase 1/2 study expansion arm, in patients with mCRPC, has been completed. A total of 6 patients with AR mutations were enrolled and treated with MRT-2359 in combination with enzalutamide. Monte Rosa plans to provide an update on this patient subset by the end of the year. Interim data were presented at the ASCO Genitourinary Cancers Symposium (ASCO GU) in February.

MRT-6160 (DDY391), VAV1-directed MGD for immune-mediated conditions

•

In September, Monte Rosa announced achievement of a milestone associated with its collaborator Novartis initiating a global Phase 2a/b randomized, double-blind, placebo-controlled study (NCT07737743), evaluating the efficacy, safety, and tolerability of up to 52 weeks of treatment with MRT-6160 (DDY391) in participants with Sjögren’s disease. The first patient visit triggered a $50 million milestone payment to Monte Rosa.

•

In October, Monte Rosa announced achievement of an additional milestone associated with Novartis initiating a second Phase 2 study of MRT-6160 (DDY391) in participants with active moderate to severe psoriatic arthritis (PsA). The Phase 2a/b randomized, double-blind, placebo-controlled, multicenter study (NCT07801495) will evaluate the efficacy, safety, tolerability, and dose-response relationship of MRT-6160 (DDY391). The first patient visit triggered a $37.5 million milestone payment to Monte Rosa.

•

The Sjögren’s and PsA studies are the first two of several studies expected for MRT-6160 (DDY391). Under its global exclusive development and commercialization license agreement with Novartis, Monte Rosa is eligible for additional Phase 2 study initiation milestone payments.

CDK2 and Cyclin E1-directed MGD programs for solid tumors

•

Monte Rosa expects to submit IND applications for its CDK2 and cyclin E1 (CCNE1)-directed MGD programs in 2027.

ANTICIPATED UPCOMING MILESTONES AND DEVELOPMENT PRIORITIES

Immunology and inflammation programs

•

Initiate GEMINI-1 Phase 2 study of MRT-8102 in gout in Q4 2026, with initial data expected in H2 2027.

•

Initiate GFORCE-2 Phase 2b study of MRT-8102 in stable coronary artery disease in H1 2027.

•

Initiate GALAXY-1 Phase 2 study of MRT-8102 in moderate to severe hidradenitis suppurativa in H1 2027.

•

Monte Rosa expects its collaborator, Novartis, to initiate additional Phase 2 studies of MRT-6160 (DDY391) in immune-mediated diseases.

Oncology programs

•

Provide a clinical data update on the initial Phase 1/2 expansion arm exploring MRT-2359 in combination with enzalutamide in mCRPC by the end of 2026.

•

Provide a clinical data update on the MODeFIRe-1 Phase 2 study of MRT-2359 in combination with apalutamide in mCRPC patients with AR mutations in 2027.

•

Submit an IND application for a CDK2-directed MGD in 2027.

•

Submit an IND application for a CCNE1-directed MGD in 2027.

THIRD QUARTER 2026 FINANCIAL RESULTS

Collaboration Revenue: Collaboration revenue for the third quarter of 2026 was $54.4 million, compared to $12.8 million for the third quarter of 2025. The increase was primarily driven by recognition of collaboration revenue from the $50.0 million milestone triggered by the initiation of the Novartis Phase 2 study of MRT-6160 (DDY391) in participants with Sjögren's disease. The $37.5 million milestone triggered by the initiation of the Novartis Phase 2 study of MRT-6160 (DDY391) in participants with psoriatic arthritis in October is not reflected in third quarter collaboration revenue as it was triggered after the end of the quarter. Collaboration revenue represents amounts earned from Monte Rosa’s collaboration and license agreements with Roche and Novartis.

Research and Development (R&D) Expenses: R&D expenses for the third quarter of 2026 were $45.4 million, compared to $36.7 million for the third quarter of 2025. The increase was primarily driven by increased spending on development and discovery programs. R&D expenses included non-cash stock-based compensation of $3.3 million for the third quarter of 2026, compared to $2.5 million in the same period in 2025.

General and Administrative (G&A) Expenses: G&A expenses for the third quarter of 2026 were $10.9 million, compared to $9.1 million for the third quarter of 2025. G&A expenses included non-cash stock-based compensation of $3.0 million for the third quarter of 2026, compared to $1.9 million in the same period in 2025.

Net Income (Loss): Net income for the third quarter of 2026 was $3.1 million, compared to a net loss of $27.1 million for the third quarter of 2025.

Cash Position and Financial Guidance: Cash, cash equivalents, restricted cash, and marketable securities as of September 30, 2026, were $582.6 million, compared to $626.0 million as of June 30, 2026. The decrease of $43.4 million was primarily due to operational use of cash. In September, Monte Rosa announced achievement of a $50 million milestone associated with the first patient visit of the Novartis Phase 2 study of MRT-6160 (DDY391) in participants with Sjögren’s disease. In October, Monte Rosa announced achievement of a $37.5 million milestone associated with the first patient visit of the Novartis Phase 2 study of MRT-6160 (DDY391) in participants with active moderate to severe psoriatic arthritis. Cash receipts from these milestones are not reflected in the September 30th cash balance as the payments had not yet been received as of that date. Monte Rosa expects that its cash, cash equivalents, restricted cash, and marketable securities will support operations into 2029.

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.

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 our ability to grow our product pipeline, our ability to successfully complete research and further development and

commercialization of our drug candidates in current or future indications, including the timing and results of our clinical trials and our ability to conduct and complete clinical trials, statements regarding our progress and speed of development of only-in-class and first-in-class molecular glue degrader therapeutics, statements about our QuEEN™ discovery engine and the broad potential applications of the platform and our ability to create long-term value through focused pipeline execution and strategic collaborations, as well as to expand the targetable protein space for MGD drug discovery, statements about our potential to rationally design MGDs with unprecedented selectivity, statements about the advancement and timeline of our preclinical and clinical programs, pipeline and the various products therein, including (i) the ongoing development of our VAV1-directed degrader, referred to as MRT-6160 (DDY391), including the initiation of Phase 2 clinical studies in Sjögren's disease and psoriatic arthritis by our collaborator Novartis, our expectations regarding the milestone payments triggered by the initiation of such Phase 2 studies, additional Phase 2 study activations expected to evaluate the potential of MRT-6160 (DDY391) across immune-mediated diseases, our eligibility for additional Phase 2 study initiation milestone payments, (ii) the ongoing development of our NEK7-directed MGD, referred to as MRT-8102, including the positive results from the GFORCE-1 Phase 1 study and the clinical significance of the data observed, statements regarding the potential of MRT-8102 to normalize local and systemic pathologic drivers of ASCVD and to provide differentiated clinical impact across NEK7/NLRP3-driven inflammatory diseases, including compared with targeting individual downstream cytokines, our expectations to initiate multiple Phase 2 studies of MRT-8102, including the GEMINI-1 study in gout patients in Q4 2026 with initial data expected in H2 2027, the GFORCE-2 Phase 2b study in patients with stable coronary artery disease and residual inflammation in H1 2027, including use of coronary artery imaging, NLRP3 genetics and biomarkers to identify a disease-modifiable patient population and inform the design of a potential Phase 3 study, and the GALAXY-1 study in moderate to severe hidradenitis suppurativa patients in H1 2027, statements regarding dose selection informed by GFORCE-1 data for further development across various NLRP3-driven diseases, statements regarding the potential of MRT-8102 in gout, (iii) the ongoing development of a next-generation NEK7-directed MGD and expected IND submission in 2027, (iv) our ongoing clinical development of MRT-2359, including the initiation of the MODeFIRe-1 Phase 2 study of MRT-2359 in combination with apalutamide in mCRPC patients with AR mutations, with potential to expand the study into additional patient subsets, our plans to provide updated data from the initial Phase 1/2 study expansion arm in patients with metastatic CRPC by the end of the year, statements regarding the clinical significance of the data observed and the potential of MRT-2359 to benefit patients with mCRPC with AR mutations, and our clinical supply agreement with Johnson & Johnson to support such trial, and (v) progress of our CDK2 and cyclin E1-directed MGD programs, including the timing of IND application submissions in 2027 for CDK2-directed and cyclin E1-directed MGDs, as well as statements related to the expected potential clinical benefit of any of our candidates, advancement and application of our platform, our ability to capitalize on and potential benefits resulting from our research and translational insights, including announcements related to preclinical programs, as well as our ability to optimize collaborations with industry partners, statements about obligations under our collaboration agreements, expectations around the receipt of payments under such agreements and the future development and commercialization of various products, statements regarding regulatory filings, including the planned timing of such filings, and potential review by regulatory authorities, our use of capital, expenses and other financial results in the future, ability to fund operations and capital expenditures into 2029, as well as our expectations of success for our programs, strength of collaboration relationships 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, as well as the risk that outcomes of preclinical studies may not be predictive of clinical trial results and 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.

Condensed Consolidated Balance Sheets

(in thousands, except share amounts)

(unaudited)

September 30,

December 31,

2026

2025

Assets

Current assets:

Cash and cash equivalents

45,180

129,883

Marketable securities

532,546

247,221

Collaboration receivable

50,000

7,000

Other receivables

7,624

4,600

Prepaid expenses and other current assets

4,715

4,481

Total current assets

640,065

393,185

Property and equipment, net

28,632

25,986

Operating lease right-of-use assets

23,343

24,386

Restricted cash

4,918

4,954

Other long-term assets

767

148

Total assets

697,725

448,659

Liabilities and stockholders’ equity

Current liabilities:

Accounts payable

$ 3,347

$ 3,550

Accrued expenses and other current liabilities

33,414

26,694

Current deferred revenue

21,098

29,571

Current portion of operating lease liability

4,187

4,397

Total current liabilities

62,046

64,212

Deferred revenue, net of current

102,261

111,332

Defined benefit plan liability

5,131

5,265

Operating lease liability, net of current

32,079

34,794

Total liabilities

201,517

215,603

Stockholders’ equity

Common stock, $0.0001 par value; 500,000,000 shares authorized, 85,431,211 and 65,543,723 shares issued and outstanding as of September 30, 2026 and December 31, 2025, respectively

Additional paid-in capital

1,064,442

714,090

Accumulated other comprehensive loss

(6,192

)

(3,827

)

Accumulated deficit

(562,051

)

(477,214

)

Total stockholders’ equity

496,208

233,056

Total liabilities and stockholders’ equity

697,725

448,659

Consolidated Statements of Income (Loss)

(in thousands)

(unaudited)

Three months ended

September 30,

Nine months ended

September 30,

2026

2025

2026

2025

Collaboration revenue

54,366

12,768

67,544

120,891

Operating expenses:

Research and development

45,363

36,678

137,396

99,521

General and administrative

10,942

9,065

31,251

25,863

Total operating expenses

56,305

45,743

168,647

125,384

Loss from operations

(1,939

)

(32,975

)

(101,103

)

(4,493

)

Other income:

Interest income

5,625

2,746

17,132

9,253

Foreign currency exchange gain (loss)

(29

)

110

1,534

Gain on disposal of property and equipment

—

Total other income

5,718

2,717

17,242

10,846

Net income (loss) before income taxes

3,779

(30,258

)

(83,861

)

6,353

Income tax (provision) benefit

(716

)

3,177

(976

)

1,156

Net income (loss)

3,063

(27,081

)

(84,837

)

7,509

Investors

Andrew Funderburk

ir@monterosatx.com

Media

Cory Tromblee, Scient PR

media@monterosatx.com

###

GRAPHIC

Filename: img106802192_0.jpg · Sequence: 3

Binary file (12665 bytes)

Download img106802192_0.jpg

GRAPHIC

Filename: img106802192_1.jpg · Sequence: 4

Binary file (12665 bytes)

Download img106802192_1.jpg

XML — IDEA: XBRL DOCUMENT

XML

Filename: R1.htm · Sequence: 7

v3.26.3

Document And Entity Information

Nov. 05, 2026

Cover [Abstract]

Amendment Flag

false

Entity Central Index Key

0001826457

Document Type

8-K

Document Period End Date

Nov. 05, 2026

Entity Registrant Name

MONTE ROSA THERAPEUTICS, INC.

Entity Incorporation, State or Country Code

Entity File Number

001-40522

Entity Tax Identification Number

84-3766197

Entity Address, Address Line One

321 Harrison Avenue

Entity Address, Address Line Two

Suite 900

Entity Address, City or Town

Boston

Entity Address, State or Province

Entity Address, Postal Zip Code

02118

City Area Code

617

Local Phone Number

949-2643

Written Communications

false

Soliciting Material

false

Pre-commencement Tender Offer

false

Pre-commencement Issuer Tender Offer

false

Title of 12(b) Security

Common Stock, $0.0001 par value per share

Trading Symbol

GLUE

Security Exchange Name

NASDAQ

Entity Emerging Growth Company

true

Entity Ex Transition Period

false

- Definition

Boolean flag that is true when the XBRL content amends previously-filed or accepted submission.

+ References

No definition available.

+ Details

Name:

dei_AmendmentFlag

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

Period Type:

duration

- Definition

Area code of city

+ References

No definition available.

+ Details

Name:

dei_CityAreaCode

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

Period Type:

duration

- Definition

Cover page.

+ References

No definition available.

+ Details

Name:

dei_CoverAbstract

Namespace Prefix:

dei_

Data Type:

xbrli:stringItemType

Balance Type:

Period Type:

duration

- Definition

For the EDGAR submission types of Form 8-K: the date of the report, the date of the earliest event reported; for the EDGAR submission types of Form N-1A: the filing date; for all other submission types: the end of the reporting or transition period. The format of the date is YYYY-MM-DD.

+ References

No definition available.

+ Details

Name:

dei_DocumentPeriodEndDate

Namespace Prefix:

dei_

Data Type:

xbrli:dateItemType

Balance Type:

Period Type:

duration

- Definition

The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'.

+ References

No definition available.

+ Details

Name:

dei_DocumentType

Namespace Prefix:

dei_

Data Type:

dei:submissionTypeItemType

Balance Type:

Period Type:

duration

- Definition

Address Line 1 such as Attn, Building Name, Street Name

+ References

No definition available.

+ Details

Name:

dei_EntityAddressAddressLine1

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

Period Type:

duration

- Definition

Address Line 2 such as Street or Suite number

+ References

No definition available.

+ Details

Name:

dei_EntityAddressAddressLine2

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

Period Type:

duration

- Definition

Name of the City or Town

+ References

No definition available.

+ Details

Name:

dei_EntityAddressCityOrTown

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

Period Type:

duration

- Definition

Code for the postal or zip code

+ References

No definition available.

+ Details

Name:

dei_EntityAddressPostalZipCode

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

Period Type:

duration

- Definition

Name of the state or province.

+ References

No definition available.

+ Details

Name:

dei_EntityAddressStateOrProvince

Namespace Prefix:

dei_

Data Type:

dei:stateOrProvinceItemType

Balance Type:

Period Type:

duration

- Definition

A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

+ Details

Name:

dei_EntityCentralIndexKey

Namespace Prefix:

dei_

Data Type:

dei:centralIndexKeyItemType

Balance Type:

Period Type:

duration

- Definition

Indicate if registrant meets the emerging growth company criteria.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

+ Details

Name:

dei_EntityEmergingGrowthCompany

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

Period Type:

duration

- Definition

Indicate if an emerging growth company has elected not to use the extended transition period for complying with any new or revised financial accounting standards.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Securities Act

-Number 7A

-Section B

-Subsection 2

+ Details

Name:

dei_EntityExTransitionPeriod

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

Period Type:

duration

- Definition

Commission file number. The field allows up to 17 characters. The prefix may contain 1-3 digits, the sequence number may contain 1-8 digits, the optional suffix may contain 1-4 characters, and the fields are separated with a hyphen.

+ References

No definition available.

+ Details

Name:

dei_EntityFileNumber

Namespace Prefix:

dei_

Data Type:

dei:fileNumberItemType

Balance Type:

Period Type:

duration

- Definition

Two-character EDGAR code representing the state or country of incorporation.

+ References

No definition available.

+ Details

Name:

dei_EntityIncorporationStateCountryCode

Namespace Prefix:

dei_

Data Type:

dei:edgarStateCountryItemType

Balance Type:

Period Type:

duration

- Definition

The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

+ Details

Name:

dei_EntityRegistrantName

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

Period Type:

duration

- Definition

The Tax Identification Number (TIN), also known as an Employer Identification Number (EIN), is a unique 9-digit value assigned by the IRS.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b-2

+ Details

Name:

dei_EntityTaxIdentificationNumber

Namespace Prefix:

dei_

Data Type:

dei:employerIdItemType

Balance Type:

Period Type:

duration

- Definition

Local phone number for entity.

+ References

No definition available.

+ Details

Name:

dei_LocalPhoneNumber

Namespace Prefix:

dei_

Data Type:

xbrli:normalizedStringItemType

Balance Type:

Period Type:

duration

- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 13e

-Subsection 4c

+ Details

Name:

dei_PreCommencementIssuerTenderOffer

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

Period Type:

duration

- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 14d

-Subsection 2b

+ Details

Name:

dei_PreCommencementTenderOffer

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

Period Type:

duration

- Definition

Title of a 12(b) registered security.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection b

+ Details

Name:

dei_Security12bTitle

Namespace Prefix:

dei_

Data Type:

dei:securityTitleItemType

Balance Type:

Period Type:

duration

- Definition

Name of the Exchange on which a security is registered.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 12

-Subsection d1-1

+ Details

Name:

dei_SecurityExchangeName

Namespace Prefix:

dei_

Data Type:

dei:edgarExchangeCodeItemType

Balance Type:

Period Type:

duration

- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as soliciting material pursuant to Rule 14a-12 under the Exchange Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Exchange Act

-Number 240

-Section 14a

-Subsection 12

+ Details

Name:

dei_SolicitingMaterial

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

Period Type:

duration

- Definition

Trading symbol of an instrument as listed on an exchange.

+ References

No definition available.

+ Details

Name:

dei_TradingSymbol

Namespace Prefix:

dei_

Data Type:

dei:tradingSymbolItemType

Balance Type:

Period Type:

duration

- Definition

Boolean flag that is true when the Form 8-K filing is intended to satisfy the filing obligation of the registrant as written communications pursuant to Rule 425 under the Securities Act.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Securities Act

-Number 230

-Section 425

+ Details

Name:

dei_WrittenCommunications

Namespace Prefix:

dei_

Data Type:

xbrli:booleanItemType

Balance Type:

Period Type:

duration