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Apr 4, 2026 10:16 PM

Anthropic Acquires Stealth Startup Coefficient Bio For $400 Million: Report

Anthropic has reportedly acquired stealth AI biology startup Coefficient Bio in an all-stock deal worth just over $400 million, as the AI startup behind the Claude chatbot eyes a potential IPO as early as October.

The acquisition was confirmed on Friday through a letter obtained by Newcomer.

A Moonshot For Science

Coefficient Bio was founded in September 2025 by Nathan Frey and Samuel Stanton, both formerly of Genentech's Prescient Design unit. Backed by venture firm Dimension, the startup develops AI models to automate complex laboratory workflows, including drug R&D planning and clinical regulatory strategy management.

The Newcomer reported that following the acquisition, Coefficient Bio will join Anthropic's Health Care Life Sciences team, led by Eric Kauderer-Abrams.

Anthropic and Coefficient Bio did ...