Fact · Speech recognition
27percent
After the October 2025 restructuring, Microsoft's investment in OpenAI Group PBC represented roughly 27 percent ownership, on an as-converted diluted basis.
Checked against its source on October 17, 2026
In the source's own words
“representing roughly 27% ownership on an as-converted diluted basis”
OpenAI completes recapitalization, Microsoft expands partnership, Converge Digest, Converge Digest, 2025, Paragraph on the Microsoft agreement.
Open the original- What it measures
- The figure is stated in OpenAI's announcement and relayed in the report. Ownership is shown as a diluted estimate, not a fixed count of shares.
- What it does not show
- An as-converted diluted estimate at one date. Other reports round the figure differently, and the stake can change.