Anthropic puts 5% of its shares into a public benefit fund that it wholly owns

Anthropic, the artificial intelligence company behind Claude, has placed 5% of its shares in the Anthropic Public Benefit Fund, a limited liability company that it wholly owns. It announced the fund on October 18, 2026, saying it “might explore large donations to traditional nonprofits or direct distributions to specific populations.”

Its registration statement for an initial public offering, filed with the Securities and Exchange Commission on October 26, says Anthropic has contributed 846,840,960 non-voting Class N shares to the fund, 5% of its fully diluted shares as of June 30, 2026 (assuming convertible notes held by Amazon are converted in full), and that stockholders approved the issuance in October. Anthropic has not given the stake a dollar value, and the offering’s price range has not been set.

What the fund may do

Anthropic says most of its public-benefit work, such as AI safety and biomedical research, stays inside the company. The fund, it says, will have “increased flexibility and scale.” The announcement’s example is AI’s effect on the labor market: Anthropic has committed $200 million to studying and addressing it, and says “bolder approaches may be needed.” The filing says the fund’s shares may be donated, transferred or sold.

How the stake can grow

After the offering, the board may issue the fund, or another designee, up to a further 2% of the company’s shares each time the share price rises 50% above the previous milestone, starting from the IPO price. Among other tests, the closing price must have been above the milestone on at least 90 of the previous 120 trading days. Because each threshold sits 50% above the last, they compound: 1.5 times the IPO price, then 2.25 times, then about 3.4 times. Each grant is at the board’s discretion.

An LLC, not a 501(c)(3)

Anthropic says it chose an LLC over a 501(c)(3) “to give adjustability between different forms of giving,” and that none of the Anthropic equity the LLC holds will be used for lobbying or political giving, in the US or abroad. The prospectus does not mention it.

A 501(c)(3) may not make influencing legislation a substantial part of its activities or take part in campaigns for or against candidates, the IRS says, and exempt organizations must make annual returns such as Form 990 available for public inspection. Anthropic has not said whether the no-lobbying commitment will be binding, or what it will publish about the fund’s grants.

Who decides

Anthropic’s board will decide the fund’s distributions until it approves a governance structure, when authority is expected to pass to designated managers. The initial managers are Dario Amodei, the chief executive; Daniela Amodei, the president and board chair; Jack Clark, a co-founder; and Neil “Buddy” Shah, chief executive of the Clinton Health Access Initiative and chair of the Long-Term Benefit Trust, which generally has the power to elect and remove a majority of Anthropic’s board.

Anthropic is a Delaware public benefit corporation: under state law, a for-profit company whose board must balance stockholders’ financial interests, the interests of those materially affected by its conduct, and the public benefit named in its charter. Directors owe no duty to any person because of that person’s interest in the public benefit, and only stockholders with at least 2% of the shares, or at a listed company $2 million of stock if that is less, can sue to enforce the balancing duty.

The 20% figure

Anthropic says that, with its co-founders’ pledges to donate 80% of their equity and an employee donation match in which about half its staff take part, “roughly 20% of Anthropic shares will be dedicated to the public good.” The filing calls the co-founders’ pledges “voluntary, revocable” and says they “do not constitute legally binding obligations.” Expenses for the match were $541 million in 2025, about 4% of total operating expenses.

Reaction

Elon Musk wrote on X on October 18: “I recommend giving the shares directly to the public.” David Sacks, whom the White House named in March 2026 as a co-chair of its science and technology advisory council, wrote: “You’ve put 20% of your equity in an LLC. Whether it serves the public good remains to be seen.” By Anthropic’s figures, the LLC holds 5%; the rest of the 20% comes from the founders’ pledges and the employee match.

What is not yet known

• What the fund’s governance structure will be, and when it will be approved
• The IPO price, which sets the first milestone for further grants
• Which organizations or populations the fund will support, and when
• What the fund will disclose about its grants