Monte Rosa Therapeutics : Corporate Presentation – March 2025

GLUE

Proteome Editing Through Molecular Glue Degraders

Innovating Beyond New Heights | March 2025

Monte Rosa Therapeutics - Company Overview

Proteome editing with molecular glue degraders

Unique and

Industry-leading

differentiated "only in

class" portfolio

discovery engine

combining use of AI with

Arsenal of rationally

experimental platform

designed MGDs to edit

to enable rational design

the proteome by

of novel MGDs

degrading proteins with

unprecedented precision

Strong financial

position providing cash

runway into 2028

through multiple

anticipated proof-of-

concept clinical readouts

3

Our Molecular Glue Degraders (MGDs) Edit the Proteome

Ubiquitin chain

Neosubstrate

(target protein)

Neosubstrate

MGDUbiquitination

MGD

Ligase

Ligase

Ternary

Neosubstrate

complex

Proteasome-mediated

degradation of neosubstrate

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Monte Rosa's rationally designed MGDs have potential applications in oncology,

immunology, neuroscience and other therapeutic areas

Key Insights into Surface Interactions Drive Only-in-Class MGD Designs

E3 ligase

E3 ligase

neosurface

Neosubstrate footprint

MGD footprint

Interrogating surfaces using

geometric deep learning informs

reprogrammable ligase and

matching target space…

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Key Insights into Surface Interactions Drive Only-in-Class MGD Designs

...and creates broad opportunity to eliminate undruggable, disease-driving proteins through

"only-in-class" MGDs

Grow

Target Space

(e.g., I&I, neurology)

MGDs

Activate

New E3 Ligases

CRBN

Ligases

Expand

Chemical Space

(MGD Library)

6

Three Ways to Eliminate a Disease-Causing Protein

MGDs can directly and precisely target proteins that cause disease

MGD

CRISPR gene editing

RNAi/ASO

MGD

DNA mRNA protein

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Three Ways to Eliminate a Disease-Causing Protein

MGDs provide advantages of large molecule modalities with orally dosed small molecules

MGD

Properties

Address

undruggable space

Highly selective

Orally bioavailable

Systemic

distribution

Scalable

manufacturing

Reversible

CRISPRRNAi/ASO

✓ ✓

✓ ✓

CRISPRRNAi/ASO

MGD

MGD

8

nucleus

DNA

mRNA

protein

Key Advantages of Our Rationally Designed MGDs

Unprecedented Selectivity

Catalytic Mechanism of Action

Target

Statistical significance (P-value; -log10)

Protein degradation (fold-change; log2)

POI-directed

CRBN MGD

+

POI

Complex

formation

POI degradation

MGD available for additional degradation

Unique insights into anatomy of protein-protein-MGD

interaction allows unprecedented MGD selectivity

Long lasting, catalytic protein degradation effect

creates differentiated target product profiles

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POI = protein of interest

Portfolio and Partnerships

Monte Rosa Pipeline and Upcoming Milestones

Oncology Immunology & Inflammation

Various

Next

Target

Compound

Indication(s)

Discovery

IND-Enabling

Clinical

Anticipated

Ownership

Milestone

VAV1

MRT-6160

Immune-mediated

Phase 2 initiation

*

Diseases

MRT-8102

IL-1β/NLRP3-driven

IND submission

in H1 2025

NEK7

Inflammatory

IND submission

CNS Optimized Diseases

in 2026

GSPT1

MRT-2359

Castration-resistant

Additional CRPC data

Prostate Cancer

in H2 2025

CCNE1 Amplified Tumors,

CCNE1/CDK2

Discovery

IND submission

Breast Cancer

in 2026

Multiple Targets

Discovery

I&I, Genetic Diseases,

Lead optimization

Oncology

Multiple Targets

Discovery

Oncology and

Undisclosed

Neurological Diseases

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* Monte Rosa has an exclusive global license agreement with Novartis for this asset.

Disclaimer

Monte Rosa Therapeutics Inc. published this content on March 20, 2025, and is solely responsible for the information contained therein. Distributed by Public, unedited and unaltered, on March 20, 2025 at 11:35:18.927.