Elon Musk

President, Treasurer, Chief Executive Officer and director X.AI Holdings Corp. Date uncertain

Holding company formed when xAI acquired X in an all-stock deal (March 2025); Tesla's 2026 proxy describes his roles there in the past tense and says the company became a SpaceX subsidiary in February 2026, without giving an end date.^{1 2 3}

Senior Advisor to the President (special government employee) Executive Office of the President, United States (associated with the Department of Government Efficiency, DOGE) Former

White House special government employee advising on the DOGE effort; a February 2025 White House court filing said he was not a DOGE employee or its administrator. He announced his departure on 28 May 2025 and a White House official said off-boarding would begin that night.^{4 5 6}

Chief Executive Officer and board member xAI Former

Chief executive and director of the artificial intelligence company that makes the Grok chatbot; Tesla's 2026 proxy describes these roles as running through the March 2025 merger of X and xAI. His position after xAI became part of SpaceX (Feb 2026) is not stated in the sources reviewed.^{1 7}

Acquirer of Twitter, Inc. Twitter, Inc. (now X Corp.) Former

Completed the US$44 billion (US$54.20 per share) purchase of Twitter; the platform was later combined with xAI in March 2025.^{8 2}

Chief Technology Officer and board member X Corp. (formerly Twitter) Former

Technology chief and director of the social media company; Tesla's 2026 proxy describes these roles as running 'through the March 2025 merger of X and xAI'.¹

Board member Endeavor Group Holdings, Inc. Former

Director of the entertainment holding company.^{1 7}

Chairman of the Board SolarCity Corporation Former

Chaired the solar company until Tesla acquired it.¹

Chairman of the Board Tesla, Inc. Former

Left the chairman role under the 2018 SEC settlement; Robyn Denholm has chaired the board since November 2018.^{9 7}