Anthropic formally filed for its IPO on Monday, planning to list as "ANT". H1 2026 revenue was $16.3B (vs $1.2B a year earlier) with an operating loss of $693M, while the $80.7B net loss was mostly noncash adjustments tied to convertible debt.
As of Sept 30 it had 11,900+ customers spending $100K+, 1,900+ at $1M+ and ~250 at $10M+. Its seven co-founders form a "Founder LLC" holding 50.1% of voting power; raise size and price are not yet disclosed.