Shortly after SpaceX listed, it was confirmed that 6 members of the U.S. House of Representatives or their family members bought the company’s shares, fuelling a growing conflict-of-interest controversy. Many of them are members of standing committees that oversee SpaceX’s business, including defence and space, artificial intelligence (AI) and financial markets.

CNBC reported on July 28 that, based on disclosures, the amount of SpaceX stock bought by 6 House members or their families over the 6 days after SpaceX’s June 12 initial public offering ranged from about $83,000 to $245,000.

The individuals identified were Representatives William Timmons, John McGuire, Dan Meuser, Gil Cisneros, John James and Jared Moskowitz. The U.S. congressional financial disclosure system requires transaction amounts to be reported in ranges, so the actual investment amounts can only be confirmed within those bands.

Timmons reported purchases of up to $100,000. Trades by James’ spouse and Meuser’s family were disclosed in the $15,001 to $50,000 range. Trades by McGuire’s spouse, Moskowitz and Cisneros were each in the $1,001 to $15,000 range.

The core of the controversy is not the stock purchases themselves but the overlap between the investment target and the lawmakers’ official authority. Five of the 6 are active in standing committees or subcommittees handling defence, satellite communications, AI and securities markets. SpaceX relies heavily on federal government licences and approvals and large government contracts. A securities filing submitted by the company showed about 20 percent of 2025 revenue came from federal agencies, and key customers included NASA, the Pentagon and intelligence agencies.

So far, no evidence has been identified that they used non-public information or violated congressional trading rules. The trades are also classified as legal under current law. Some lawmakers said trades were made in the names of spouses or dependents, and some said outside investment advisers managed their portfolios. Ethics experts, however, said such arrangements still do not resolve conflict-of-interest concerns.

Kedric Payne, director of ethics at the Campaign Legal Center, said the SpaceX investment cases go beyond whether there was simply insider trading and show conflict-of-interest issues involving public officials. He said potential conflicts can arise when committee work overseeing government contractors overlaps with personal investment in those companies, and that trades in the names of spouses or dependents carry the same problem.

Criticism has also been raised within Congress. Representative Pramila Jayapal said some lawmakers appeared to be focusing on growing personal wealth rather than legislating for constituents. Controversy has persisted even in cases such as Moskowitz, who is not on a committee that directly oversees SpaceX. Because lawmakers participate in votes on bills that can affect the defence budget and government contracts, concerns about conflicts exist regardless of committee membership, critics say.

Looking at individual trades, Cisneros bought SpaceX shares in his own name on June 18 and is currently a member of the House Armed Services Committee. James’ spouse bought shares on June 12, the day of the listing. James’ side said the spouse invested through a brokerage in the same way as ordinary investors, prompted by the children’s interest in the space industry.

McGuire’s spouse bought shares on June 15, and McGuire is active on subcommittees related to the military, foreign affairs and financial services. A dependent of Meuser also bought shares the same day. Timmons, McGuire and Meuser did not issue separate statements.

The trades also coincided with a period of extreme volatility in SpaceX’s share price. After starting trading at an IPO price of $135 and an opening price of $150, SpaceX rose to as high as $201.80 at one point in June based on closing prices. The stock closed at $113.46 on July 27, down about 16 percent from the IPO price and about 44 percent from the peak.

Because the disclosure system provides only ranges rather than exact transaction amounts, the actual profit or loss for each lawmaker or family member cannot be confirmed. Dan Weisskopf of Tidal Financial said actual investment performance may only be known after years, and that the situation in which legislative authority and investment assets coexist creates a grey area.

The flow of political money is also drawing renewed attention. A SpaceX employees political action committee spent about $1.9 million on federal elections from January 2025 to June 2026. Of $127,500 in donations in June this year, about 94 percent went to Republican candidates or Republican-leaning groups.

The controversy emerged shortly after the U.S. House passed the STOP Insider Trading Act, which restricts stock trading in individual companies by lawmakers and their families. The bill bans new purchases of individual stocks while allowing existing holdings to be maintained. It passed the House last week and now awaits Senate consideration.

Democrats, however, are criticising the current bill, saying it would be difficult to fundamentally prevent conflict-of-interest issues like the SpaceX case if it continues to allow existing stock holdings.