Anthropic filed its preliminary Form S-1

• The registration statement describes a proposed Nasdaq Class A listing under the ticker ANT.
• Offering size, IPO pricing, final outstanding shares, and prospectus / first-trading dates remain undisclosed in this snapshot.
• The filing describes four contractual holder groups with staggered, earnings-linked lockups. Actual cohort quantities and calendar release dates are unconfirmed.

SEC S-1Filing index