🇺🇸Anthropic filed its S-1 for an IPO and applied to list on the Nasdaq Global Select Market under ANT.

The reported filing covers a proposed initial public offering of Class A common stock. Crunchbase describes the S-1 as 335 pages long, while Telegram reporting says its risk-factor section exceeds 90 pages. The listing application is not a completed IPO, and the supplied material does not establish an offering price, proceeds, or final dilution.

The reported financial disclosures show substantial revenue growth alongside increasing distribution costs. First-half 2026 revenue was $16.3 billion versus $1.2 billion a year earlier; second-quarter revenue was $11.6 billion, with $974 million in operating profit. Sales through Amazon, Google, and Microsoft represented 48% of first-half revenue versus 11% in 2023, while first-half sales, marketing, and partner costs rose from $120 million to $3.2 billion, principally reflecting a $2.7 billion increase in channel-partner fees.

Borrowing and compute requirements are separate from IPO proceeds. Reporting identifies $6.2 billion of existing debt at June 30 and a five-year, $15 billion revolving credit facility led by Morgan Stanley; separate messages describe spending of up to $114.5 billion with Google through 2033 and up to $120.5 billion on SpaceXAI NVIDIA compute, without equivalent timing or conditions for the latter. Anthropic warned that it could need additional financing earlier than anticipated, might not sustain profitability, and expected near-term compute demand to exceed supply.

Ownership disclosures and risk warnings add important qualifications. Reports say each of the seven founders owns approximately 1.4% and has pledged 80% of their personal Anthropic shares to charity; a separate message reports a 1-for-1,000 reverse split specifically of Class T common stock, not all share classes. The reported S-1 warnings cover compute access and allocation, the effectiveness of AI safeguards, selective government scrutiny, and higher cooling-related electricity and water requirements associated with rising temperatures.