Net worth
$25.5B
Forbes Real-Time · as of Sep 24, 2026
Latest moves
No moves from Greg Brockman in the digest yet. The archive grows every morning.
Recent SEC filings
This person doesn't file with the SEC.
Footprint
Companies
Stakes
Stripeabout 7.5 million shares worth… · as of Mar 2026
source ↗More
- Stake
- about 7.5 million shares worth more than $471M (his former employer; first CTO)
- Stake as of
- 2026-03
CoreWeaveCRWV · undisclosed stake (testified… · as of May 2026
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- Ticker
- CRWV
- Stake
- undisclosed stake (testified at trial; CoreWeave has a deal with OpenAI)
- Stake as of
- 2026-05
Cerebras and Helion (stakes disclosed alongside CoreWeave and Stripe)as of May 2026
source ↗Financial interest in Sam Altman's family office (per trial testimony)as of May 2026
source ↗Private deals
Testified in Musk v. Altman that his OpenAI stake is worth nearly $30B despite investing no money of his own (Forbes…May 2026
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- In full
- Testified in Musk v. Altman that his OpenAI stake is worth nearly $30B despite investing no money of his own (Forbes headline)
- Date
- 2026-05-04
Legal & regulatory
Defendant in Musk v. Altman (N.D. Cal., Judge Yvonne Gonzalez Rogers): on 2026-05-18 an advisory jury found Musk's…
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- In full
- Defendant in Musk v. Altman (N.D. Cal., Judge Yvonne Gonzalez Rogers): on 2026-05-18 an advisory jury found Musk's claims time-barred and the judge adopted the verdict; Musk said he would appeal
Research gaps: No SEC person CIK exists for Greg Brockman; the EDGAR entity search on 2026-09-24 found no match. OpenAI has no public S-1 on EDGAR, only related fund entities such as the OpenAI Startup Fund. Forbes and Axios returned 403, so the new items rest on headlines and search summaries. Exact OpenAI % is still unverified from a primary document. No real estate or foundation found.
What to watch
OpenAI IPO: confidential draft registration filed with SEC in 2026 (reported late May/June); Reuters reported OpenAI…
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- In full
- OpenAI IPO: confidential draft registration filed with SEC in 2026 (reported late May/June); Reuters reported OpenAI may wait until 2027. A public S-1 would disclose insider stakes
Musk appeal of the Musk v. Altman verdict
source ↗CoreWeave (CRWV) as a listed holding tied to OpenAI contracts; conflict-of-interest scrutiny of his outside stakes
source ↗OpenAI pre-IPO leadership refresh: senior executives leave as Brockman takes a broader 'founder mode' role across the…Aug 14, 2026
source ↗More
- In full
- OpenAI pre-IPO leadership refresh: senior executives leave as Brockman takes a broader 'founder mode' role across the company (Axios, seen only as a search headline/summary)
- When
- 2026-08-14