Where does OpenAI's cap table come from?

Share classes are assembled from certificates of incorporation, priced-round filings, and disclosures across OpenAI's 25 recorded funding rounds.

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OpenAI

Software Development Applications · San Francisco, CA · Founded 2015 · In IPO Registration

Developer of machine learning systems designed for general-purpose artificial intelligence applications. OpenAI is based in San Francisco, CA and was founded in 2015. It is valued at about $1.16 trillion as of Oct 2026, set by secondary market price, up 36% since its later-stage round in Mar 2026. It has raised $178 billion across 25 recorded rounds; the latest was a $520 million debt round in Jul 2026.

PMV mark · valuation

$1.2T

Oct 2026

Secondary market · $/share

$955

Total raised

$178.1B

Last round

Debt - General

Jul 2026

Cap table — not yet on record

OpenAI's share-class structure hasn't surfaced in our sources yet. Cap tables are assembled from certificates of incorporation, round filings, and disclosures as they land.

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The prices on OpenAI

·Every dated print: 42 trades with prices and structures
·111 fund marks: filer, period, implied $/share
·The monthly marks chart, 43 months in dollars
·Price per share on 1 round

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Frequently asked about OpenAI

Where does OpenAI's cap table come from?: Share classes are assembled from certificates of incorporation, priced-round filings, and disclosures across OpenAI's 25 recorded funding rounds.