CNBC, 2025-10-28; retrieved 2026-09-15 tier 4 press (primary)confirmed

OpenAI completes restructure, solidifying Microsoft as a major shareholder

https://www.cnbc.com/2025/10/28/open-ai-for-profit-microsoft.html

'the OpenAI Foundation will hold a 26% stake in the for-profit'; Foundation equity worth about $130 billion; nonprofit retains control. Fetched 2026-09-15; span present.

Signals citing this source

SecureBio, F (against): Accepted an OpenAI Foundation grant in 2026 for the Detection division; the foundation's endowment is a stake in OpenAI and its board largely overlaps.“the OpenAI Foundation will hold a 26% stake in the for-profit”
SecureBio, F (against): The OpenAI Foundation granted SecureBio Detection $17.2M; the Foundation's endowment is a stake of roughly a quarter of OpenAI PBC with a near-identical board.

Ledger rows citing this URL

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