At least 18 US public pension funds already own part of Anthropic ahead of its IPO, Equable finds

Nov 14, 2026
The pension research group traced the holdings through Spark Capital funds named in Anthropic's S-1, and says most public plans will own the stock through index funds within months.

At least 18 US public pension funds hold shares of Anthropic ahead of its initial public offering, according to a brief from the Equable Institute, a public pension research organisation. Another 28 public pension funds invest in an Insight Partners fund that may also hold Anthropic shares.

Equable based the analysis on Anthropic's S-1, which lists holders of more than 5% of its shares, and found six private funds managed by Spark Capital. The pension funds with the most capital committed to those Spark vehicles include the Texas County & District Retirement System, with $210 million across three funds, the South Carolina Retirement System Investment Commission with $110 million, and the Orange County Employees' Retirement System with $101.6 million, ai-CIO reports. Pension funds rarely disclose which companies their private funds own, Equable notes.

"Almost every public pension plan is about to become an owner of Anthropic over the next several months," Equable CEO Anthony Randazzo told ai-CIO, because the stock will enter most US equity indexes once it is public. Anthropic plans to offer 825 million shares at $70 to $78 each, with the IPO set for November 19, according to ai-CIO.

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