Anthropic to unveil IPO prospectus after Labor Day

Anthropic plans to publicly release its IPO prospectus after the US Labor Day holiday, hold an investor day in mid-September, and list on a US exchange as soon as late September or early October, The Information reported September 2, 2026. The offering is being targeted at a valuation of roughly $1.5 trillion to $2 trillion, with reports suggesting it could raise more than $60 billion in what would be the largest IPO on record, and Anthropic is weighing letting existing shareholders sell shares directly and using lockup periods longer than the standard 180 days.