Add-on Acquisition • Software

Anthropic Acquires Bun

On December 2, 2025, Anthropic acquired software company Bun

Acquisition Context

This is Anthropic’s 1st transaction in the Software sector.
This is Anthropic’s 1st transaction in the United States.
This is Anthropic’s 1st transaction in California.

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M&A Deal Summary
Date	December 2, 2025
Target	Bun
Sector	Software
Buyer(s)	Anthropic
Deal Type	Add-on Acquisition

Target Company

Bun

San Francisco, California, United States

Bun is an open-source, all-in-one JavaScript/TypeScript runtime, bundler, package manager, and test runner. Bun was founded in 2019 and is based in San Francisco, California.

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Buyer Overview 1

Buyer

Anthropic

San Francisco, California, United States

Category	Company
Founded	2021
Sector	Information Technology

DESCRIPTION

Anthropic is an artificial-intelligence research and development firm focused on designing safe, interpretable, and steerable AI systems. Anthropic was founded in 2021 and is based in San Francisco, California.

Deal Context for Buyer	#
Overall	1 of 1
Sector: Software	1 of 1
Type: Add-on Acquisition	1 of 1
State: California	1 of 1
Country: United States	1 of 1
Year: 2025	1 of 1

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