The Lam Research Corporation - line shows up 73 times in the congressional disclosure record between 2012 and 2026, filed by 20 members: 43 purchases against 30 sales. On balance the chamber has been net buyers, and the purchases sit up 126.9% against the latest close.
*Purchases only, weighted by the midpoint of each disclosed dollar band and marked to the latest close. Filings report a range, never a share count, so this follows the stock rather than anyone's position size.
Members ranked by how their reported LRCX purchases have moved since, over roughly the last three years, weighted by disclosed band midpoint and marked to the latest close.
| Date | Member | Type | Amount | Est. price | Latest close | Return |
|---|---|---|---|---|---|---|
| 2026-08-13 | Sheldon Whitehouse | SELL | $1K–$15K | $337.01 | $237.50 2026-10-26 | +29.5% exit |
| 2026-06-05 | David J. Taylor | SELL | $1K–$15K | $303.28 | $237.50 2026-10-26 | +21.7% exit |
| 2026-04-27 | David J. Taylor | SELL | $1K–$15K | $259.47 | $237.50 2026-10-26 | +8.5% exit |
| 2026-03-30 | Alan Armstrong | BUY | $1K–$15K | $199.93 | $237.50 2026-10-26 | +18.8% |
| 2026-03-27 | Alan Armstrong | BUY | $1K–$15K | $211.41 | $237.50 2026-10-26 | +12.3% |
| 2026-03-12 | David J. Taylor | BUY | $1K–$15K | $209.49 | $237.50 2026-10-26 | +13.4% |
| 2026-02-26 | David J. Taylor | SELL | $1K–$15K | $239.07 | $237.50 2026-10-26 | +0.7% exit |
| 2026-02-03 | Cleo Fields | BUY | $15K–$50K | $230.10 | $237.50 2026-10-26 | +3.2% |
| 2026-01-08 | John Boozman | SELL | $1K–$15K | $200.96 | $237.50 2026-10-26 | -18.2% exit |
| 2026-01-08 | David J. Taylor | SELL | $15K–$50K | $200.96 | $237.50 2026-10-26 | -18.2% exit |
| 2025-12-29 | Markwayne Mullin | BUY | $50K–$100K | $175.87 | $237.50 2026-10-26 | +35.0% |
| 2025-09-22 | David J. Taylor | SELL | $1K–$15K | $132.20 | $237.50 2026-10-26 | -79.7% exit |
| 2025-09-03 | Jonathan Jackson | SELL | $1K–$15K | $97.74 | $237.50 2026-10-26 | -143.0% exit |
| 2025-08-28 | Sheldon Whitehouse | SELL | $15K–$50K | $104.09 | $237.50 2026-10-26 | -128.2% exit |
| 2025-08-13 | Jonathan Jackson | BUY | $1K–$15K | $106.74 | $237.50 2026-10-26 | +122.5% |
| 2025-08-07 | Byron Donalds | BUY | $1K–$15K | $99.15 | $237.50 2026-10-26 | +139.5% |
| 2025-07-18 | David J. Taylor | SELL | $1K–$15K | $100.66 | $237.50 2026-10-26 | -135.9% exit |
| 2025-05-13 | Markwayne Mullin | BUY | $15K–$50K | $85.25 | $237.50 2026-10-26 | +178.6% |
| 2025-04-16 | John Boozman | SELL | $1K–$15K | $65.14 | $237.50 2026-10-26 | -264.6% exit |
| 2025-04-08 | Markwayne Mullin | SELL | $50K–$100K | $60.25 | $237.50 2026-10-26 | -294.2% exit |
| 2025-04-04 | Marjorie Taylor Greene | BUY | $1K–$15K | $59.09 | $237.50 2026-10-26 | +301.9% |
| 2025-02-05 | John Boozman | SELL | $1K–$15K | $81.94 | $237.50 2026-10-26 | -189.8% exit |
| 2025-01-24 | William R. Keating | SELL | $1K–$15K | $79.68 | $237.50 2026-10-26 | -198.1% exit |
| 2024-12-19 | Sheldon Whitehouse | SELL | $15K–$50K | $71.21 | $237.50 2026-10-26 | -233.5% exit |
| 2024-11-25 | Marjorie Taylor Mrs Greene | BUY | $1K–$15K | $73.71 | $237.50 2026-10-26 | +222.2% |
| 2024-10-04 | Marjorie Taylor Mrs Greene | BUY | $1K–$15K | $81.54 | $237.50 2026-10-26 | +191.3% |
| 2024-09-23 | Josh Gottheimer | SELL | $1K–$15K | $78.41 | $237.50 2026-10-26 | -202.9% exit |
| 2024-09-20 | Marjorie Taylor Mrs Greene | BUY | $1K–$15K | $77.32 | $237.50 2026-10-26 | +207.2% |
| 2024-08-26 | Jonathan Jackson | SELL | $15K–$50K | $81.89 | $237.50 2026-10-26 | -190.0% exit |
| 2024-07-26 | John Boozman | SELL | $1K–$15K | $89.46 | $237.50 2026-10-26 | -165.5% exit |
| 2024-01-19 | Thomas H Tuberville | SELL | $1K–$15K | $82.63 | $237.50 2026-10-26 | -187.4% exit |
| 2024-01-19 | Jonathan Jackson | BUY | $15K–$50K | $82.63 | $237.50 2026-10-26 | +187.4% |
| 2024-01-10 | Rohit Khanna | BUY | $1K–$15K | $74.97 | $237.50 2026-10-26 | +216.8% |
| 2024-01-02 | Markwayne Mullin | BUY | $15K–$50K | $74.93 | $237.50 2026-10-26 | +217.0% |
| 2024-01-02 | Markwayne Mullin | BUY | $15K–$50K | $74.93 | $237.50 2026-10-26 | +217.0% |
| 2023-12-20 | John Boozman | SELL | $1K–$15K | $75.49 | $237.50 2026-10-26 | -214.6% exit |
| 2023-12-20 | John Boozman | SELL | $1K–$15K | $75.49 | $237.50 2026-10-26 | -214.6% exit |
| 2023-10-03 | Markwayne Mullin | BUY | $1K–$15K | $61.81 | $237.50 2026-10-26 | +284.2% |
| 2023-09-13 | Markwayne Mullin | BUY | $15K–$50K | $65.87 | $237.50 2026-10-26 | +260.6% |
| 2023-08-22 | Daniel S Sullivan | SELL | $1K–$15K | $66.68 | $237.50 2026-10-26 | -256.2% exit |
| 2023-08-22 | Daniel S Sullivan | SELL | $1K–$15K | $66.68 | $237.50 2026-10-26 | -256.2% exit |
| 2023-06-30 | JOHN BOOZMAN | SELL | $1K–$15K | $64.29 | $237.50 2026-10-26 | -269.4% exit |
| 2023-06-21 | John Curtis | SELL | $1K–$15K | $60.58 | $237.50 2026-10-26 | -292.0% exit |
| 2023-02-13 | William R. Keating | BUY | $1K–$15K | $51.03 | $237.50 2026-10-26 | +365.4% |
| 2022-11-30 | Daniel S Sullivan | BUY | $1K–$15K | $47.24 | $237.50 2026-10-26 | +402.8% |
| 2022-11-30 | Daniel S Sullivan | BUY | $1K–$15K | $47.24 | $237.50 2026-10-26 | +402.8% |
| 2022-08-23 | Rohit Khanna | BUY | $1K–$15K | $46.40 | $237.50 2026-10-26 | +411.9% |
| 2022-08-01 | Rohit Khanna | BUY | $1K–$15K | $50.28 | $237.50 2026-10-26 | +372.4% |
| 2022-06-27 | Rohit Khanna | BUY | $1K–$15K | $44.98 | $237.50 2026-10-26 | +428.0% |
| 2022-06-16 | Rohit Khanna | SELL | $15K–$50K | $41.83 | $237.50 2026-10-26 | -467.8% exit |
Buys are marked to the latest close and treated as open. A sell tagged rt closes an earlier disclosed buy in the same name. exit shows how the stock moved after the member sold.
20 members of the U.S. House and Senate have disclosed Lam Research Corporation - transactions under the STOCK Act — 43 purchases and 30 sales. The full member-by-member breakdown, with dates and dollar ranges, is in the table above.
No member of Congress has disclosed a LRCX purchase in the last 90 days. STOCK Act filings lag the trade by up to 45 days, so newer buys may still be pending disclosure.
Notional-weighted, lawmakers' disclosed LRCX buys are up 126.9% versus the latest close of $237.50. Each trade's own return — and realized round-trips on matched sells — is in the Return column.
Yes. Under the 2012 STOCK Act, members of Congress may buy and sell individual stocks but must publicly disclose each transaction within 45 days. Bargo surfaces those filings so you can see who traded LRCX and how it performed.