Markwayne Mullin bought Intuitive Surgical Inc (NASDAQ: ISRG)
Markwayne Mullin (R-OK), a U.S. Senator, has disclosed 2 trades in Intuitive Surgical Inc (ISRG) since 2025, all purchases, worth an estimated $108K in disclosed volume (the midpoint of the dollar ranges members report, not exact amounts).
The trade highlighted here is a purchase: Markwayne Mullin bought $50,001 - $100,000 of Intuitive Surgical Inc (NASDAQ: ISRG) on September 24, 2025. Since that trade, ISRG is down -20.47% against the S&P 500 up +10.97%, an outperformance of -31.44%.
Across these filings, Markwayne Mullin has been a net buyer of ISRG. The most recent disclosed ISRG transaction shown was dated December 29, 2025. Each row in the table below links to that trade and its post-trade performance versus the market.
Data updated
Markwayne Mullin's ISRG trades vs the price
ISRG is down -20.47% since Markwayne Mullin bought on September 24, 2025, versus +10.97% for the S&P 500.
Performance since this trade
All Markwayne Mullin ISRG trades
Markwayne Mullin & ISRG trading FAQ
Is it legal for Markwayne Mullin to trade Intuitive Surgical Inc (ISRG) stock?
Yes. Members of Congress are allowed to trade individual stocks, including Intuitive Surgical Inc (ISRG), but the STOCK Act of 2012 requires them to publicly disclose each transaction within 45 days. Quantellect tracks those disclosures; this page does not imply the trade was improper.
When did Markwayne Mullin buy ISRG?
Markwayne Mullin disclosed a purchase of $50,001 - $100,000 of Intuitive Surgical Inc (ISRG) on September 24, 2025, according to public STOCK Act filings.
How has ISRG performed since Markwayne Mullin's trade?
Since Markwayne Mullin bought ISRG on September 24, 2025, the stock is down -20.47%, versus +10.97% for the S&P 500 over the same period, an outperformance of -31.44%.
How many times has Markwayne Mullin traded ISRG?
Markwayne Mullin has disclosed 2 ISRG trades since 2025. Every disclosed trade is listed on this page.
How soon must members of Congress disclose a trade?
Under the STOCK Act, members of Congress must publicly report a covered transaction within 45 days of the trade. Filings can still be delayed, amended, or contain errors.
Where can I see all congressional ISRG trades?
Quantellect tracks every disclosed congressional trade in Intuitive Surgical Inc (ISRG) on the Intuitive Surgical Inc congressional trading page, which aggregates filings across all members of Congress.
Markwayne Mullin's ISRG tradesAll congressional filings for Intuitive Surgical IncMarkwayne Mullin's full profile
Not investment advice. Congressional trading data is sourced from public STOCK Act disclosures, which are filed with a delay and may contain errors or be revised. Estimated prices and post-trade returns are derived algorithmically from public filings and end-of-day market data and describe historical activity, not a recommendation. Always do your own research and consult a licensed financial advisor before making investment decisions.