Anthropic's IPO filing gives its founders 50.1% of votes and no economic rights

The filing: founders keep control, trust picks the board majority

On October 26, 2026, Anthropic, PBC filed a Form S-1 with the Securities and Exchange Commission for an initial public offering of Class A common stock. The company says it has applied to list on the Nasdaq Global Select Market under the symbol "ANT." The filing is a preliminary prospectus: the share counts, the price range and the dollar totals are blank, and the document states the securities cannot be sold until the registration statement is effective. Anthropic will sell some shares; selling stockholders will sell others and keep those proceeds.

The headline detail is not the offering. It is who will hold power afterward.

How the share classes work

Most public companies run on a simple idea: one share, one vote, and the shares carry the profits. Anthropic's filing splits those two things apart across several classes of stock.

• Class A: the stock sold in the IPO. One vote per share, with economic rights. It is not convertible.
• Class F: a single share, issued just before the offering to a limited liability company organized by the co-founders. It carries votes equal to 50.1% of total voting power on general matters, including electing directors other than the Class T directors. It has no economic rights. Dario Amodei, Daniela Amodei and five other co-founders will initially be the Founder LLC's only members.
• Class T: held by the Long-Term Benefit Trust, which the company describes as an independent body of financially disinterested trustees. Class T lets the trust elect and remove directors who together make up a majority of the authorized board. It has no other voting rights and no economic rights.
• Class E: to be issued to employees other than the co-founders. It votes only on limited matters and has no economic rights.
• Class N: identical to Class A except it has no vote, and it converts to Class A on sale to an unaffiliated third party. The filing says holders are primarily strategic business partners.

The company also says it is a Delaware public benefit corporation. That means directors must balance stockholders' financial interests, the interests of people materially affected by the company's conduct, and a stated purpose: the responsible development and maintenance of advanced AI for the long-term benefit of humanity. Because of the Class F block, Anthropic also calls itself a "controlled company" under Nasdaq rules, a status that generally relaxes some board-independence requirements.

Who gains and who is exposed

The founders gain durable control without owning a matching share of the economics. Public investors get the profit claim but, by the filing's own description, cannot outvote the Founder LLC on general matters or choose the board majority the trust elects. Anyone who buys Class A is buying a stake whose governance was designed to constrain what shareholders can demand.

Strategic partners holding Class N stock are exposed in a different way: they hold economics without votes, and conversion happens when they sell to an unaffiliated buyer. Employees holding Class E have a voice only on limited matters.

The overlooked group is enterprise customers. A company whose board majority is picked by a trust, and whose legal duty includes a stated public purpose, may make decisions a purely profit-driven vendor would not. That could cut either way for buyers building on its products, and the filing excerpt does not say how.

Questions You Should Be Asking

• If the trust and the Founder LLC hold the control levers, what concrete remedy do Class A holders have when their interests conflict with the stated public benefit purpose?
• The Founder LLC starts with seven co-founders as members. What happens to that 50.1% block if members leave, disagree or sell, and who decides?
• What power does the trust actually exercise day to day, and has it ever overruled management? The excerpt describes its authority but gives no track record.
• For customers: does this structure change contract terms, pricing risk or continuity commitments, or is it invisible to the commercial relationship?
• What do the blank sections, including price range, share counts and financials, reveal once filled in, and what changes between this draft and the final prospectus?

What To Watch Next

Watch for the amended S-1 that fills in the price range and share counts, and for the Risk Factors section on governance structure, which the filing flags as the place to read about these risks. How the market prices Class A stock with this control structure, and whether the final terms of the trust and Founder LLC change, will show how much investors accept giving up.