Companies / Artificial intelligence / OpenAI

OpenAI

Frontier AI research and products. San Francisco, CA · Founded 2015 · openai.com ↗
☆ Watch 18 I want to buy Sell my shares
Last round
$852B
Closed round · Mar 2026
For sale
None
Nobody’s selling. Yet.
Buyer demand
$2.67M
18 buyers · avg $819B
Last settled
—
No settlements yet
Watching
18
+1 this week
Valuation history
Post-money at each sourced round · buyer demand overlaid
$500B$1000B Funding · $300BFunding · 2025Closed round · $852BClosed round · 2026 Demand avg $819B
$500B$1000B Funding · $300BFun·25Closed round · $852BClo·26 Demand avg $819B
Funding rounds
Every number links to where we got it
RoundDateRaisedPost-moneySource
Closed roundMar 2026$122B$852BOpenAI ↗
FundingMar 2025$40B$300BOpenAI ↗
Key people & investors
SASam AltmanCEO
GBGreg BrockmanPresident
Investors: Microsoft, SoftBank, Thrive, Khosla
News
OpenAI closes round at $852B with $122B committed
openai.com · Mar 31, 2026
Alerts
Ping me when a new block lists, demand crosses $2.7M, or a round is announced. We promise not to email you about webinars.
SEEKING SELLER
$2.67M
requested by 18 buyers, who'd pay up to $819B on average. Nobody's selling. Yet.
≤ $750B$400K
$800B$1.1M
$850B$900K
$900B+$266.7K
Have OpenAI shares? Sell into this Join the buyers · add your request
Buy requests are non-binding until a seller lists and you confirm. They're a signal, not a cheque.
Implied price per share
Based on 5B fully-diluted shares (est.)
Closed round (Mar 2026)$170.40
Buyer demand avg ($819B)$163.88
Alerts
Ping me when a new block lists, demand crosses $2.7M, or a round is announced. We promise not to email you about webinars.