Congress trades in Lam Research Corporation (LRCX) (LRCX)
9 of the members we track disclosed 16 purchases of LRCX between 2023-02-14 and 2026-03-30, and 28 sales. Here is what the stock did afterwards.
Every purchase is measured over the three months after the transaction date, against XLK — the ETF standing in for Technology — over exactly the same dates. The second figure is the one that carries information: the first mostly reflects what the sector did. How LRCX was classified.
How these buys are tagged
Lam Research Corporation (LRCX) is a mega-cap, so a committee-aligned purchase here is tagged Aligned (Mega-cap) rather than Notable: owning a company this size says little about committee access. 8 are marked Cluster: A buy is marked Cluster when at least one other tracked member of Congress bought the same stock within 30 days of it, regardless of committee membership.
| Buys | Number | Return after 3 months | vs. sector | Beat their sector |
|---|---|---|---|---|
| All buys | 16 | +33.6% | +20.5% | 88% |
| Notable (committee-flagged) | 0 | Too few buys to measure | ||
| Unaligned (no committee overlap) | 13 | +37.9% | +23.2% | 85% |
| Cluster, excl. mega-caps | 0 | Too few buys to measure | ||
| Not clustered, excl. mega-caps | 0 | Too few buys to measure | ||
Who bought the most
- Markwayne Mullin — 5 buys
- Alan Armstrong — 2 buys
- Jonathan L. Jackson — 2 buys
- Josh Gottheimer — 2 buys
- David J. Taylor — 1 buy
Every disclosed purchase
| Member | Bought disclosed |
Signal | Price | 1W | 1M | 3M | vs sector |
|---|---|---|---|---|---|---|---|
| Alan Armstrong | 2026-03-30 2026-07-21 |
Unaligned Cluster | $199.93 | +10.4% | +24.4% | +105.5% | +60.1% |
| Alan Armstrong | 2026-03-27 2026-07-21 |
Unaligned Cluster | $211.41 | +3.3% | +26.7% | +79.3% | +39.9% |
| David J. Taylor | 2026-03-12 2026-03-20 |
Unaligned Cluster | $209.49 | +11.7% | +25.9% | +73.0% | +40.1% |
| Cleo Fields | 2026-02-03 2026-02-24 |
Unaligned | $230.10 | -1.5% | -6.7% | +19.9% | +3.3% |
| Markwayne Mullin | 2025-12-29 2026-01-16 |
Unaligned | $175.87 | +10.7% | +36.2% | +13.7% | +26.3% |
| Jonathan L. Jackson | 2025-08-13 2025-09-23 |
Unaligned Cluster | $106.74 | -7.1% | +9.6% | +51.2% | +41.7% |
| Byron Donalds | 2025-08-07 2025-09-05 |
Unaligned Cluster | $99.15 | +8.3% | +3.8% | +63.6% | +53.8% |
| Markwayne Mullin | 2025-05-13 2025-06-11 |
Unaligned | $85.25 | -1.1% | +7.5% | +23.5% | +8.2% |
| Val T. Hoyle | 2024-10-29 2025-09-12 |
Unaligned | $78.31 | -2.4% | -8.6% | -4.9% | -5.0% |
| Josh Gottheimer | 2024-01-25 2024-02-15 |
Aligned (Mega-cap) Cluster | $86.56 | -3.9% | +7.3% | +4.1% | +7.3% |
| Jonathan L. Jackson | 2024-01-19 2024-02-15 |
Unaligned Cluster | $82.63 | +1.5% | +12.1% | +5.3% | +9.1% |
| Markwayne Mullin | 2024-01-02 2025-08-12 |
Unaligned Cluster | $74.93 | +0.4% | +11.1% | +29.1% | +18.7% |
| John James | 2023-11-10 2024-09-02 |
Aligned (Mega-cap) | $68.54 | +2.2% | +2.6% | +33.0% | +17.2% |
| Markwayne Mullin | 2023-10-03 2023-11-01 |
Unaligned | $61.81 | +2.6% | +0.8% | +21.2% | +6.1% |
| Markwayne Mullin | 2023-09-13 2023-10-12 |
Unaligned | $65.87 | -6.0% | -2.1% | +11.5% | -0.3% |
| Josh Gottheimer | 2023-02-14 2023-03-17 |
Aligned (Mega-cap) | $51.62 | -7.3% | -0.2% | +8.3% | +2.0% |
Prices are the closing price on the transaction date, not what was paid: filings never disclose an execution price. Blank figures mean the window has not elapsed yet. Sales are not scored — a sale closes a position rather than opening one — so the 28 disclosed sales of LRCX are not in this table.
Download the data behind this page, or read how every figure is calculated. Trades in LRCX are a small part of the full rankings, which score each member across everything they bought.
Data last updated .