- 3+ members traded it the same way within 14 days▲
- Larger than this member's usual trade▲
- New position▲
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The Hill Wire · Member dossier
Markwayne Mullin
RepublicanFormer Senator · OK · left Mar 2026No longer in office
6.8 points behind the S&P 500
Copying Mullin's 62 purchases from the day each became public: +5.3%. The S&P over the same days: +12.1%.
Buys only, each purchase counted equally, not what Mullin earned. 18 of the 48 members with five or more priced purchases are ahead of the index. Mullin is not one of them. The typical member trails it by 2.8 points.
- Disclosed trades
- 90
- 62 purchases · 28 sales · made public since January 2026
- Disclosed volume
- $3.7M
- midpoints of the reported ranges, not what Mullin owns
- Made public
- 26 days
- Half of Mullin's trades were made public within 26 days; Congress overall 28; the law allows 45.
- On time
- 100%
- 79% across Congress
A former Oklahoma senator who ran his family's plumbing business
Markwayne Mullin is a businessman and member of the Cherokee Nation who assumed control of his family's plumbing business in 1998. He represented Oklahoma in the United States House of Representatives from 2013 to 2023 and the Senate from 2023 to 2026. He became United States secretary of homeland security in 2026.
Mullin's plumbing business experience connects his professional background to plumbing services and business operations.
businessman · plumbing business
Generated with AI, awaiting an editor · from Wikipedia · not from the filings
What the filings show
Markwayne Mullin, a former Republican senator from Oklahoma, disclosed frequent stock purchases and sales spread across many companies
Mullin's disclosed trading consists of frequent purchases and sales of individual stocks, spread widely across companies. The trades include no funds or options. Most activity is filed in joint accounts, with the rest split between his own accounts and his spouse's.
What to watch
- Joint accounts account for most disclosed activity; the ownership mix matters when reading trades attributed to Mullin.
- The filings met their deadlines, but the delay between trading and disclosure still matters.
- Technology features prominently within trading spread across many companies; a narrower focus would change the picture.
Generated with AI, awaiting an editor, from the member’s own filings · carries no figures and makes no claim about performance
Filings that stood out
this member's highest Signal Scores · of 100, how much a filing stands out, not a rating · sorted by score, never by price move
- 3+ members traded it the same way within 14 days▲
- Larger than this member's usual trade▲
- New position▲
- 3+ members traded it the same way within 14 days▲
- Larger than this member's usual trade▲
- New position▲
Public information from STOCK Act filings. Amounts are reported in ranges and shown as midpoints, filings arrive after the trades, and no personal profit or loss is disclosed. Not financial advice.