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Fact·f_FZb1inTwrQ·Fact

OpenAI — Equity Stake: 27%

Verdictconfirmed99%
1 check · 4/29/2026

1 → confirmed

Our claim

entire record
Subject
OpenAI
Property
Equity Stake
Value
27%
As Of
October 2025
Notes
Microsoft equity stake in OpenAI Group PBC after restructuring; valued at approximately $135B on $500B valuation. Down from previous 32.5% stake. Microsoft invested $13.8B total ($11.6B funded as of September 2025).

Source evidence

1 src · 1 check
confirmed99%primaryHaiku 4.5 · 4/11/2026

NoteThe source explicitly states multiple times that Microsoft received a 27% stake in OpenAI as part of the for-profit restructuring deal. This is mentioned in the headline, subheading, and body text. The claim matches the source material exactly.

Case № f_FZb1inTwrQFiled 4/29/2026Confidence 99%
Source Check: Equity Stake | Longterm Wiki