Who is Markwayne Mullin?
Markwayne Mullin is a Republican U.S. Senator from Oklahoma. Before the Senate, he served six terms in the U.S. House of Representatives representing Oklahoma's 2nd congressional district from 2013 to 2023. He won his Senate seat in a 2022 special election following the retirement of Jim Inhofe.
Mullin is a businessman who owned and operated a family plumbing and mechanical services company before entering Congress. His business background gives him a practical economic perspective that he has frequently cited in debates over regulatory and economic policy.
Most Traded Stocks
Based on all STOCK Act filings in Capitol Trader's database, Markwayne Mullin has traded these stocks most frequently:
| Ticker | Purchases | Sales | Total |
|---|---|---|---|
| UNH | ↑ 2 | ↓ 1 | 3 |
| LRN | ↑ 2 | ↓ 1 | 3 |
| INTU | ↑ 2 | ↓ 1 | 3 |
| GS | ↑ 1 | ↓ 2 | 3 |
| ADBE | ↑ 2 | ↓ 1 | 3 |
| VSEC | ↑ 2 | — | 2 |
| PRMB | — | ↓ 2 | 2 |
| NOW | ↑ 2 | — | 2 |
| MTZ | — | ↓ 2 | 2 |
| MSFT | ↑ 2 | — | 2 |
Net buying activity has been heaviest in UNH, LRN and INTU. Net selling has been most notable in GS and PRMB.
Trading Pattern Analysis
With 90 disclosed transactions, Mullin is among the most active traders in the Senate in Capitol Trader's database. His trading activity reflects consistent equity investment alongside his business interests.
His committee assignments in the Senate include Armed Services, Health, Education, Labor & Pensions (HELP), and Indian Affairs — sectors that together represent a wide swath of the U.S. economy, from defense contractors to pharmaceutical companies.
Recent Disclosed Trades
The six most recent STOCK Act disclosures filed by Markwayne Mullin:
Showing 6 most recent. View all 90 trades →
How to Interpret These Disclosures
All trade data shown here comes from official STOCK Act filings. Using this public government data for investment research is entirely legal — the STOCK Act was designed precisely to give citizens visibility into congressional trading activity.
Key limitations to keep in mind: the STOCK Act allows up to 45 days between a transaction and its public disclosure. By the time you see a filing, any information advantage that may have existed at the time of the trade has likely been incorporated into market prices.
Trade amounts are disclosed as ranges, not exact figures. For example, a filing showing "$50,001 – $100,000" means the actual amount could be anywhere in that bracket. This limits precision in dollar-value analysis.