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Fundraising

Diagonal Therapeutics

Diagonal Therapeutics Raises $125M Series B | Antibody Therapeutics

Cambridge, MAJanuary 7, 20261 min read
Total Raised
$125M
Latest Round
Series B
Employees
80+

Diagonal Therapeutics Closes $125M Series B

Diagonal Therapeutics, developing disease-modifying clustering antibodies for rare genetic diseases, has raised $125 million in Series B funding.

The round was led by Sanofi Ventures and Janus Henderson Investors.

Key Highlights

  • Focus on rare genetic diseases
  • Novel antibody platform
  • Strategic pharma backing from Sanofi

Company Overview

Diagonal Therapeutics is pioneering a new class of therapeutics using clustering antibodies to address rare genetic diseases with high unmet medical need.

Company Info

Headquarters
Cambridge, MA
Team Size
80+
Last Round
$125M(Jan 2026)

Investors (2)

S
Sanofi VenturesLead
Lead Investor
Sanofi corporate venture arm
J
Janus Henderson
Lead Investor
Global asset manager

Topics

Series B(306)BiotechRare DiseaseAntibodyHealthcare

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