Markwayne Mullin bought Lam Research Corp (NASDAQ: LRCX)
Markwayne Mullin (R-OK), a U.S. Senator, has disclosed 6 trades in Lam Research Corp (LRCX) since 2023, 5 purchases and 1 sale, worth an estimated $256K in disclosed volume (the midpoint of the dollar ranges members report, not exact amounts).
The trade highlighted here is a purchase: Markwayne Mullin bought $15,001 - $50,000 of Lam Research Corp (NASDAQ: LRCX) on September 13, 2023. Since that trade, LRCX is up +362.60% against the S&P 500 up +71.98%, an outperformance of +290.62%.
Across these filings, Markwayne Mullin has been a net buyer of LRCX (a buy-to-sell ratio of 5.00). The most recent disclosed LRCX 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 LRCX trades vs the price
LRCX is up +362.60% since Markwayne Mullin bought on September 13, 2023, versus +71.98% for the S&P 500.
Performance since this trade
All Markwayne Mullin LRCX trades
Estimated profit is shown for buys only, marked to the latest close. It is an estimate and does not net later sells, taxes, or fees.
Markwayne Mullin & LRCX trading FAQ
Is it legal for Markwayne Mullin to trade Lam Research Corp (LRCX) stock?
Yes. Members of Congress are allowed to trade individual stocks, including Lam Research Corp (LRCX), 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 LRCX?
Markwayne Mullin disclosed a purchase of $15,001 - $50,000 of Lam Research Corp (LRCX) on September 13, 2023, according to public STOCK Act filings.
How has LRCX performed since Markwayne Mullin's trade?
Since Markwayne Mullin bought LRCX on September 13, 2023, the stock is up +362.60%, versus +71.98% for the S&P 500 over the same period, an outperformance of +290.62%.
How many times has Markwayne Mullin traded LRCX?
Markwayne Mullin has disclosed 6 LRCX trades since 2023 (5 purchases and 1 sale). 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 LRCX trades?
Quantellect tracks every disclosed congressional trade in Lam Research Corp (LRCX) on the Lam Research Corp congressional trading page, which aggregates filings across all members of Congress.
Markwayne Mullin's LRCX tradesAll congressional filings for Lam Research CorpMarkwayne 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.