Anthropic files S-1 for Nasdaq listing as "ANT"

The S-1 lands after months of speculation about Anthropic's timing and financials. The filing shows a company that has crossed into operating profitability while carrying enormous compute commitments, and it includes the standard registration disclaimer Anthropic used to announce the filing. Revenue growth above 1,000% year over year in the last quarter and a 21% free-cash-flow margin over the last six months, as summarized by Jamin Ball, frame the scale of the business relative to its age.

The filing also details how Anthropic raised capital: about $128.6B of preferred stock proceeds and $11.3B of convertible notes from Amazon and Google issued in 2023–2025, of which about $5B has converted. The remaining $6.2B of principal carries a $108.6B fair-value liability because it converts at $2–5/share versus a ~$59 Series H price, which is why the headline $80.7B H1 net loss includes $81.1B of non-cash charges tied to financial instruments.

Beyond the numbers, the S-1 pitches "Virtual Collaborators" for knowledge workers, a population estimated to exceed one billion in 2028, and it discloses that Anthropic recently delayed pre-training of a new frontier model. The filing's roughly 400 pages also draw attention to a mismatch between consumption-based revenue and long-term compute obligations, and to limited shareholder influence—points that may shape how public-market investors read the listing.