A new SFGATE interview revives the question of whether the Craigslist founder is still a billionaire. His foundation's Form 990s confirm the philanthropy is real — and show exactly where the claim stops being checkable.

Drew Magary's SFGATE culture column this week put a question to Craig Newmark that the Craigslist founder has spent years deflecting: after the billions, the Giving Pledge and the self-described "peasant" wardrobe, is he still, technically, a billionaire? Newmark's answer, as it has been elsewhere, is no. The public record can confirm part of that — and shows exactly where the claim stops being checkable.

Start with what's documented. Forbes last put a number on Newmark in April 2020: $1.3 billion, ranked No. 1613, before dropping him from its billionaire list that year. There is no current Forbes estimate. In December 2025 he and his wife, Eileen, signed the Giving Pledge, committing the standard "majority of wealth" — no dollar figure, no timeline. By Newmark's own account, given to industry outlet AIM Group and repeated since, he "gave away all my Craigslist equity" to charity.

His foundation's own filings show real money moving. The Craig Newmark Foundation — a 501(c)(3), EIN 47-5338517 — reported $138.9 million in net assets on its 2025 Form 990-PF, filed June 17, 2026, against $9.46 million in charitable disbursements. It is a foundation spending itself down: net assets have fallen from roughly $209 million in 2020 to $139 million in 2025, with disbursements ($43.6M in 2023, $15.9M in 2024) outrunning dividend income year after year. Newmark draws no salary as president. Named gifts trace out from there — about $30 million to CUNY's journalism school, now bearing his name, plus multiyear commitments to veterans' groups and university cybersecurity clinics.

Here is where the record goes dark. That (c)(3) is not where the Craigslist money sits. Reporting from 2023 placed roughly $392 million of his remaining Craigslist equity in a separate 501(c)(4) — a vehicle that discloses far less than a private foundation's annual 990. The "$450 million given away" figure that Fortune and others cite does not reconcile to the itemized gifts on the public record; the bulk lives inside entities that never publish a line-item accounting. So "not a billionaire" rests on Newmark's word plus his absence from a list — not on any independent 2025 valuation.

And the underlying asset is a moving target. Craigslist, still private and never audited in public, saw revenue fall from about $1.04 billion in 2018 to $302 million in 2025, per AIM Group; a single third-party estimate this year pegged the company at $3.0 billion. Newmark reportedly owned north of 40%. Whether the equity he "gave away" is worth what it was when he pledged it, nobody outside the cap table can say.

The honest read: the philanthropy is real and, unusually among his peers, actually documented in the 990s — this is not a press release. The billionaire question isn't settled by the interview; it comes back "unverifiable," which is its own kind of answer. What to watch: whether the 501(c)(4)'s holdings ever surface, and whether Craigslist's revenue slide changes the math on a fortune Newmark insists is already gone.