Anthropic files S-1 registration statement with SEC, kicking off IPO process

shauntrennery · x · 2026-10-26

Anthropic has filed an S-1 registration statement with the SEC (dated October 26), formally starting its path to a public offering:

Registrant: Anthropic, PBC, a Delaware corporation headquartered at 548 Market Street, San Francisco.
Leadership listed: CEO/co-founder Dario Amodei and President/co-founder Daniela Amodei.
Counsel: Wilson Sonsini Goodrich & Rosati and Freshfields US LLP.
Offering timing: "as soon as practicable" after effectiveness — no pricing or date set yet.

The S-1 filing is the key regulatory gate for a US IPO, signaling the process has moved into a concrete phase.