The secondary share sale, designed to provide liquidity to current and former employees, could amount to $6 billion.
The deal valued the San Francisco-based software company at $2.5 billion, with Accel and 01A participating alongside new investors Salesforce Ventures and S32.
The $600 million secondary deal will reportedly comprise stakes in five technology companies, including OpenAI, while providing a new commitment to Anthropic.
The secondary share sale reportedly allows eligible employees to sell up to 25% of their vested shares in the wearable technology startup.
Salica Investments also participated in the secondary share sale, which valued the UK-based wealth management platform at $1.1 billion.
The digital bank has reportedly kicked off its employee liquidity event, pricing shares at $2,017 each.
Venture secondaries platform Forge won a reprieve from Anthropic's blacklist, while rival Hiive remains stuck in the Claude-maker's crosshairs.
The Claude maker is reportedly seeking to raise $30 billion in what would be its largest funding round to date, at a $900 billion valuation.
The secondary sale reportedly fell short of its $6 billion expectation as employees look towards a highly anticipated IPO.
The Claude-maker is reportedly pursuing the secondary share sale alongside a primary funding round.
