Stock Markets April 9, 2026 03:07 PM

xAI Finance Chief Anthony Armstrong Departs Amid Senior-Level Exits

Armstrong, appointed CFO in October, had been overseeing finance for both xAI and X as the companies navigated advertiser disruptions and merger integration

By Ajmal Hussain
xAI Finance Chief Anthony Armstrong Departs Amid Senior-Level Exits

Anthony Armstrong, who took on the role of chief financial officer at xAI in October, has left the company as part of a wider set of senior departures, according to a report citing two people familiar with the matter. Armstrong, a former Morgan Stanley banker who advised Elon Musk during the acquisition of the social media platform X, reported to Bret Johnsen and was responsible for finance operations across both xAI and X. His departure comes as the linked businesses prepare a large initial public offering for SpaceX and continue efforts to restore advertising revenue to the social media platform.

Key Points

  • Anthony Armstrong, named xAI CFO in October, has left as part of a broader set of senior departures.
  • Armstrong had worked at Morgan Stanley and advised Elon Musk during the acquisition of X; he reported to Bret Johnsen and led finance operations for both xAI and X.
  • SpaceX is planning a large IPO seeking $75 billion and a valuation up to $1.75 trillion, with plans discussed to allocate shares to retail investors and host a retail event in June.

April 9 - Anthony Armstrong, named chief financial officer of xAI in October, has exited the company as part of a broader wave of senior-level departures, a report citing two people familiar with the matter said on Thursday.

Armstrong had been overseeing finance functions for both xAI and the social media platform X. Before joining xAI, he worked as a banker at Morgan Stanley and served as an adviser to Elon Musk during the acquisition of X.

Within the corporate reporting structure he answered to Bret Johnsen. Johnsen served as the finance chief of the combined entity following the merger that united xAI and SpaceX, according to earlier coverage. Armstrong’s remit included steering finance operations across the merged businesses.

At the social media business, Armstrong was charged with helping restore financial stability after an exodus of advertisers that followed a relaxation of content moderation standards under Musk’s ownership. That advertiser departure left the platform working to rebuild revenue while managing broader operational challenges.

The company did not immediately respond to a request for comment.

Separately, SpaceX is moving forward with plans for a highly anticipated initial public offering. The plan, as previously outlined to bankers, seeks to raise roughly $75 billion and could value the space company at as much as $1.75 trillion. Executives described plans at a bankers’ meeting to reserve a sizable portion of shares for retail investors and to host 1,500 of them at an event scheduled for June.

Armstrong’s departure joins other senior exits at the linked organizations, underscoring a period of leadership turnover as they prepare for major strategic milestones and work to stabilise commercial operations at the social platform.


Context and implications

  • Armstrong’s background in investment banking and his advisory role in the X acquisition framed his brief tenure as xAI CFO.
  • His responsibilities covered finance for both xAI and X, making his role central to efforts to stabilise the social media platform’s revenues.
  • The planned SpaceX IPO remains a major capital markets event outlined to bankers, including retail allotments and a June investor event.

Risks

  • Leadership turnover at xAI and X could complicate efforts to stabilise the social media platform’s advertising-driven revenue recovery - impacting the social media and advertising sectors.
  • Advertiser departures following changes to content moderation have already pressured the social platform’s finances, creating uncertainty about the pace of revenue restoration - affecting digital ad markets and media spending.
  • Management changes across the merged entities occur as SpaceX prepares a major IPO, introducing execution and timing risks for capital markets and investor appetite in the space sector.

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