Republican lawmakers are probing OpenAI CEO Sam Altman's personal investments as the AI firm eyes an IPO this week, amid market buzz. The House Oversight Committee opened a conflict‑of‑interest inquiry, and six GOP state attorneys general asked the SEC to review the case. The move follows a Wall Street Journal report that Altman urged OpenAI to back companies in which he holds stakes.

Separate from the congressional probe, Elon Musk has filed a lawsuit in federal court claiming Altman and OpenAI misled him into contributing tens of millions of dollars to a nonprofit that later converted to a for‑profit venture. Musk alleges the transformation enriched the founders while leaving early donors short‑changed, a charge that could amplify regulatory pressure as the company approaches its market debut.

Investors now face heightened uncertainty about OpenAI's valuation and governance standards. Any SEC finding that Altman's deals compromised the firm could delay or reshape the IPO, potentially affecting the multi‑billion‑dollar market entry many analysts expect. With political and legal challenges converging, the company must demonstrate clear separation between its leadership's private holdings and corporate decision‑making for shareholders.