Key Takeaways
- Anthropic created a single Class F share that holds 50.1% of voting power, letting the founders overrule outside investors as long as at least three founders stay at the firm.
- The company established a Long-Term Benefit Trust to name board members, but the trust shares power equally with the corporate board rather than exercising unilateral control.
- A contested seventh board seat defaults to a vote by Class E shareholders, an equity class created for employees who donate stock to charity.
- The founders pledged 80% of their personal equity to charitable causes and backed it up with an uncapped 3:1 company match for employee equity donations.
The Class F Share Keeps Amazon and Google at Bay
Anthropic raised billions from corporate backers like Amazon and Google. Normal corporate governance would hand those massive investors board seats, veto rights, and eventually strategic control. Anthropic bypassed this standard path entirely. In their S-1 filing, they detailed a voting structure built around a single Class F share.
This structure addresses a classic founder trap. Frontier model development requires billions of dollars in compute, but accepting outside capital usually means trading away your independence. By tying majority control to the active presence of three founders rather than percentage ownership, Anthropic lets equity dilution run wild without giving up operational command. The corporate giants get financial upside, but they cannot dictate product strategy or push for an unwanted sale.
Class E Shares Give Board Power to Philanthropic Employees
Tech companies usually issue dual-class stock to strip voting rights from rank-and-file workers. Anthropic did something different. They designed Class E shares, a class reserved specifically for workers who donate equity to charity.
Patrick McKenzie noted how unusual this is: “I don't think I've ever heard of another company explicitly privileging employees with share classes. Generally it's something of the reverse.” (play from 14:12)
This share class interacts directly with the company's governing trust. While Anthropic created a Long-Term Benefit Trust to protect its core mission, the trust does not hold unchecked authority. Mowshowitz explained the mechanics: "And similarly, they have set up a Long-Term Benefit Trust, which will appoint nominally four of the seven board members over the long term, which in theory would have given them control of the company. But if you look at the actual details, the board appoints three, the Long-Term Benefit Trust appoints three, and then there's the seventh seat, which is suggested by the Long-Term Benefit Trust, but has to be effectively approved by the founders, and if the founders don't agree, then it goes to the vote of the employees who donated stock to charity, also known as the Class E shares."
The incentives favor mission-driven staff. Mowshowitz added: “The founders have famously pledged 80% of their shares to charity, and they've offered very, very generous matching donations for those who want to give their stock away.” (play from 15:45) By combining an uncapped 3:1 match with tie-breaking board power, Anthropic built an internal voting bloc of employees who have already proved they care more about mission than personal liquidity.
What to Do With This
Review your cap table and investor agreements before your next funding round. If you plan to accept capital from strategic partners whose corporate priorities could clash with your product roadmap, draft protective voting provisions today. Decide right now which core decisions require a founder supermajority, and write sunset clauses tied to founder retention rather than ownership percentages.