Fortune: Anthropic Q3 growth slowed and costs jumped, amended IPO filing shows

jeremyakahn · x · 2026-11-03

Fortune reports that Anthropic published an amended IPO prospectus on the SEC website, disclosing Q3 revenue of $17B for the quarter ended September 30 — up from $11.6B in Q2 and $1.4B a year earlier — though growth slowed and costs jumped sharply. It's a media report on the same filing detailing the swing to an operating loss.

Related event: Anthropic's Amended S-1 Shows $17B Q3 Revenue but Return to Loss(14 posts)→

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