Editas Medicine, Inc. · NASDAQ:EDIT

Editas Medicine — Investor Presentation (June 2026)

17 slides from Editas Medicine's investor presentation, June 2026

  1. Slide 1: Driving Durable, Transformative Medicines Forward

    Driving Durable, Transformative Medicines Forward June 2026 1

  2. Slide 2: Forward Looking Statements

    Forward Looking Statements This presentation contains forward-looking statements and information within the meaning of The Private Securities Litigation Re form Act of 1995. The words ‘‘anticipate,’’ ‘‘believe,’’ ‘‘continue,’’ ‘‘could,’’ ‘‘estimate,’’ ‘‘expect,’’ ‘‘intend,’’ ‘‘may,’’ ‘‘plan,’’ ‘‘pot

  3. Slide 3: EDIT-401: Potential to Transform the Hyperlipidemia Treatment Landscape

    Transformative Address significant unmet needs via Therapeutic one-time, durable treatment with meaningful patient and broader healthcare system impact Potential Novel Differentiated strategy unlocked by Therapeutic functionally upregulating protein expression Mechanisms Delivery platform enables pr

  4. Slide 4: Editas' Differentiated In Vivo Gene Editing Strategy

    Editas’ Differentiated In Vivo Gene Editing Strategy Genetic Genetic Non-genetic Knockdown Correction Knockdown* Functional Upregulation Edits Non-Coding Regions Addresses All Patients** One-time, Curative Potential Differentiated Therapeutic Strategy Harnessing the power of CRISPR gene editing and

  5. Slide 5: Transformative LDL-C Lowering Potential

    EDIT-401: Transformative LDL-C Lowering Potential Average LDL-C Reduction with Current Treatments EDIT-401 Uniquely vs. EDIT-401 Potential Positioned Time Baseline Intensive, lifelong reduction of LDL-C provides maximal clinical benefit7 Statins % Reduction Current standard of care May eliminate mul

  6. Slide 6: EDIT-401: Potential to Transform the Treatment of Hyperlipidemia

    EDIT-401: Potential to Transform the Treatment of Hyperlipidemia Delivering Addressing Aligning Best-in-Class Significant At-Risk Patient Benefits with Therapy Populations System Costs Single dose of EDIT-401 One-time treatment has achieved ~90% or ~10 million U.S. patients potential to enable great

  7. Slide 7: Large Opportunity Across At-risk Hyperlipidemia Patient Populations

    EDIT-401: Large Opportunity Across At-risk Hyperlipidemia Patient Populations 70 million US patients Heterozygous Familial Hypercholesterolemia with hyperlipidemia1 Highly prevalent monogenic genetic disorder that leads to elevated LDL-C2 1.2 Million ~10–20x 97% people are affected increased risk of

  8. Slide 8: Potential to Address Significant Burden on Healthcare Systems

    EDIT-401: Potential to Address Significant Burden on Healthcare Systems Limited Benefit ~75% of ASCVD patients do not achieve LDL-C goals1,2 EDIT-401 is poised to transform the treatment landscape and Inconvenient Regimens align clinical economic value Current Multi-drug approach with Standard of ch

  9. Slide 9: Potential Best-in-class LDL-C Reduction

    EDIT-401: Potential Best-in-class LDL-C Reduction EDIT-401 Therapeutic Strategy for LDLR upregulation • Edits non-coding, regulatory regions • ~10-40% functional editing achieves >90% mean LDL-C reduction in preclinical studies1 • At least 6-fold mean LDLR protein increase in preclinical studies 1 •

  10. Slide 10: Therapeutic Strategy De-Risked by Human Genetics

    EDIT-401: Therapeutic Strategy De-Risked by Human Genetics 7 Icelandic family members identified as carriers of partial LDLR 3’ UTR deletion1 Plasma LDL-C levels1 ∆ICE 3’ UTR carriers deletion carriers n = 101,857 Icelandic non-carriers Mean plasma LDL-C (mmol/l) No Adverse Events Observed in Icelan

  11. Slide 11: Achieved ~90% or Greater Mean Reduction in LDL-C and Lp(a) in NHPs

    EDIT-401: Achieved ~90% or Greater Mean Reduction in LDL-C and Lp(a) in NHPs A single dose of EDIT-401 LDL-C reductions Reductions in LDL-C and Promising preclinical achieved ~90% or remained durable Lp(a) were highly safety profile with no greater mean reduction through ~6 correlated, highlighting

  12. Slide 12: Durable, Rapid, and Robust LDL-C Reduction in NHPs

    EDIT-401: Durable, Rapid, and Robust LDL-C Reduction in NHPs Single dose of EDIT-4011 40 Vehicle (n=4) 1.5 mg/kg (n=4) 2.0 mg/kg (n=4) 3.0 mg/kg (n=4) • Rapid and robust LDL-C reduction 30 across a dose range 20 (% change from baseline) 10 0 -10 -20 • At least 6-fold mean increase in LDL-C -30 -40 L

  13. Slide 13: Achieved >90% Mean LDL-C Reduction in Wildtype Mice with LDLR Loss-of-Function

    EDIT-401: Achieved >90% Mean LDL-C Reduction in Wildtype Mice with LDLR Loss-of-Function and High LDL-C Wildtype Mice and Mice Heterozygous for LDLR Loss-of- Function with High Baseline LDL-C1 500 WT Vehicle WT Edited ✓ >90% mean LDL-C 400 Ldlr+/- Vehicle reduction Ldlr+/- Edited LDL-C mg/dL 300 ✓ S

  14. Slide 14: Up To ~90% Mean Lp(a) Reduction Achieved in NHPs

    EDIT-401: Up To ~90% Mean Lp(a) Reduction Achieved in NHPs Elevated Lp(a) adds independent genetically driven risk that can persist even when LDL-C is at goal Single dose of EDIT-4011 • Dose-dependent Lp(a) reduction Vehicle 1.5 mg/kg 3 mg/kg 6 mg/kg (n=3) (n=3) (n=3) (n=3) 60 50 40 • Rapid Lp(a) re

  15. Slide 15: Preclinical Safety Profile

    EDIT-401: Preclinical Safety Profile Single dose of EDIT-401 EDIT-401 safety observations at therapeutically relevant dose1: Group Mean ALT Group Mean Bilirubin 1.0 600 • Well-tolerated with no 500 Vehicle (n=9) 0.8 Vehicle (n=9) 1.5 mg/kg (n=14) adverse clinical 1.5 mg/kg (n=14) observations 400 0.

  16. Slide 16: EDIT-401: Key Anticipated Milestones

    Driving Durable, Transformative Medicines Forward EDIT-401: Key Anticipated Milestones Delivering Best- in-Class Therapy​ 2026 2027 Present additional preclinical data for EDIT-401 Complete enrollment in by mid-2026 clinical trial, dose-finding portion Addressing Submit CTN for EDIT-401 by mid-2026

  17. Slide 17: Programs Positioned for Development

    Programs Positioned for Development PROGRAM (OR DISEASE CANDIDATE) PRECLINICAL IND/CTA EARLY-STAGE LATE-STAGE DEVELOPMENT ENABLING CLINICAL CLINICAL & COMMERCIAL PARTNER CARDIO VASCUL AR EDIT-401: Hyperlipidemia H EM OG L OB I N - O PA TH I E S In Vivo HSC Editing – sickle cell disease In vivo HSC E

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