--- title: "Elon Musk has lost his lawsuit against Sam Altman and OpenAI" type: "News" locale: "en" url: "https://longbridge.com/en/news/286803660.md" description: "Elon Musk lost his lawsuit against Sam Altman, Greg Brockman, OpenAI, and Microsoft, as California jurors ruled unanimously that his claims were filed too late. Musk accused them of 'stealing a charity' by forming a for-profit affiliate, but the jury found that any alleged harms occurred before the legal filing deadline. This story is still developing." datetime: "2026-05-18T17:35:14.000Z" locales: - [zh-CN](https://longbridge.com/zh-CN/news/286803660.md) - [en](https://longbridge.com/en/news/286803660.md) - [zh-HK](https://longbridge.com/zh-HK/news/286803660.md) --- # Elon Musk has lost his lawsuit against Sam Altman and OpenAI Elon Musk’s claim that he was mistreated by his OpenAI cofounders failed after nine California jurors decided in a unanimous verdict that his lawsuits had been filed too late. Musk had accused Sam Altman, Greg Brockman, OpenAI and Microsoft of “stealing a charity” by creating a for-profit affiliate to the frontier AI lab. Jurors, however, found that any harms that Musk suffered came before the deadline for filing his claims under the law. _This is a developing story and will be updated._ ### Related Stocks - [MSFU.US](https://longbridge.com/en/quote/MSFU.US.md) - [MSFO.US](https://longbridge.com/en/quote/MSFO.US.md) - [MSFX.US](https://longbridge.com/en/quote/MSFX.US.md) - [MSFL.US](https://longbridge.com/en/quote/MSFL.US.md) - [MSFT.US](https://longbridge.com/en/quote/MSFT.US.md) ## Related News & Research - [Jury rejects Musk’s case, clearing OpenAI IPO path](https://longbridge.com/en/news/286928473.md) - [Microsoft Stock Edges Higher After Jury Rules Against Musk In OpenAI Trial](https://longbridge.com/en/news/286808280.md) - [Microsoft feared being too dependent on OpenAI, Musk-Altman trial testimony reveals](https://longbridge.com/en/news/286318824.md) - [Microsoft, OpenAI end exclusivity with $38B revenue cap](https://longbridge.com/en/news/286585801.md) - [Sam Altman to Testify This Tuesday as OpenAI Case Reaches Boiling Point](https://longbridge.com/en/news/286123402.md)