Sen. Markwayne Mullin (R-Okla.) could soon have a new title, with the 48-year-old receiving the nomination to replace Kristi Noem as the leader of the Department of Homeland Security by President Donald Trump. Mullin has been flagged for his recent stock trading activity, including buying oil and defense stocks ahead of geopolitical conflicts.
Markwayne Mullin’s Recent Stock Purchases
The trading activity of Markwayne Mullin can be tracked on the Benzinga Government Trades page.
Investors will see recent trades made by Mullin, which include buying stocks like FirstCash Holdings (NASDAQ:FCFS), Stride (NYSE:LRN), and VSE Corporation (NASDAQ:VSEC), all of which have market capitalizations under $10 billion.
The senator also recently purchased shares of Carpenter Technology (NYSE:CRS), a company that makes alloys used by defense companies. That stock and VSE, which has government contracts with the Air Force, have been flagged due to Mullin’s committee assignment on the Senate Armed Services Committee.
Benzinga recently highlighted that Mullin owns oil stocks like Chevron Corporation (NYSE:CVX) and ConocoPhillips (NYSE:COP) alongside defense stocks like L3Harris Technologies (NYSE:LHX) and RTX Corp (NYSE:RTX).
Oil and defense stocks have risen since the attack on Iran by the United States and have been somewhat heightened in recent months after the capture of the leader of Venezuela and continued tension in Russia, Ukraine and the Middle East.
As a member of a committee with inside information on the armed services, Mullin’s trades have sparked concerns about a potential conflict of interest.
Mullin has also been actively buying up shares of six of the seven Magnificent Seven stocks, marking some of his largest purchases in recent years.
In December, Mullin bought $100,000 to $250,000 in shares in each of Apple Inc (NASDAQ:AAPL), Amazon.com Inc (NASDAQ:AMZN), Alphabet Inc (NASDAQ:GOOGL), Microsoft Corporation (NASDAQ:MSFT) and NVIDIA Corporation (NASDAQ:NVDA). The senator also bought $50,000 to $100,000 in shares of Meta Platforms (NASDAQ:META) at the time.
Those transactions followed up a big purchase of $250,000 to $500,000 in shares of Microsoft stock in November.
Mullin has also been buying up shares of financial stocks like Citigroup (NYSE:C), Goldman Sachs (NYSE:GS), Mastercard (NYSE:MA), JPMorgan (NYSE:JPM) and American Express (NYSE:AXP) in recent months.
Markwayne Mullin’s Trading History
Worth an estimated $66 million according to data from Quiver Quantitative, Mullin has been one of the most active stock traders since 2023.
According to data, here is Mullin’s trading history by year:
- 2023: $5.18 million in stocks bought, $163,000 in stocks sold
- 2024: $3.7 million in stocks bought, $5.29 million in stocks sold
- 2025: $4.66 million in stocks bought, $3.15 million in stocks sold
- 2026 to date: $975,000 in stocks bought, $886,000 in stocks sold
In total, Mullin has made over 500 stocks trades with over $24 million in buy and sell transactions since 2023.
Benzinga has previously flagged the senator for questionable disclosures. In 2025, Mullin violated the STOCK Act by reporting transactions he made in 2023 two years later.
Mullin’s stock trading history could become a topic of debate during his confirmation hearings to become the next leader of the Department of Homeland Security.
With the Republican Party holding majorities in the House and Senate and often being more accommodating to former congressional members in hearings, Mullin will likely be confirmed for the role.
Image: Shutterstock
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