Sen. Markwayne Mullin (R-Okla.) could become the next leader of the Department of Homeland Security, as he was named recently the nominee to replace Kristi Noem by President Donald Trump. A current member of the Senate, Mullin has been an active stock trader in recent years.
Markwayne Mullin’s Recent Stock Transactions
Mullin made three stock trades on Feb. 25, according to data from the Benzinga Government Trades page. The senator bought $50,000 to $100,000 in UnitedHealth Group (NYSE:UNH) shares.
This joins a recent $15,001 to $50,000 purchase of the health insurance stock by the senator back in September 2025. Before that, Mullin had sold his previous holdings in the stock in August 2025.
The senator currently serves on the Committee on Health, Education, Labor and Pensions and on the subcommittee on Department of Labor, Health and Human Services, and Education and the subcommittee on Primary Health and Retirement Security.
These committee assignments could make the purchase of a health insurance stock a potential conflict of …Full story available on Benzinga.com
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