Anthropic charity-match expense exceeds $660 million and may reach billions

Charity matching costs rise sharply

Anthropic booked more than $660 million in non-cash expense related to stock matches for employee charity gifts from October 2025 to March 2026. The Information reported the figure, citing investors who had seen the company's IPO figures.

The portion covering the first quarter of 2026 was about $125 million. That amount represented roughly 10% of employee expenses and 2% of operating costs. The overall charge is projected to climb into the billions after the IPO, which would dilute other shareholders.

Contributions compared with BlackRock

Anthropic's 2025 contributions totaled $540 million, compared with $109 million from BlackRock. Calcbench identified BlackRock as the next-largest Fortune 500 donor by this measure.

Calcbench CEO Pranav Ghai said Anthropic's exclusion of the charity-match charge from adjusted profit was "not common at all." The expense was recorded as non-cash, even though the projected post-IPO growth in the charge could affect shareholder dilution.

Dilution falls on later investors

Anthropic's seven co-founders are ineligible for the charity match. Each has pledged to give away at least 80% of their wealth. Their exclusion from the program concentrates the dilution on later joiners and outside investors.

Those outside investors paid into a May round that valued Anthropic at $965 billion. The charity-match expense comes amid continued pre-IPO coverage of Anthropic this quarter.

Sources: The Information Via Ai Weekly