Lam Research Corp
LRCX- Exchange
- Nasdaq
- Industry
- Special Industry Machinery, NEC
- SEC CIK
- 0000707549
In the last 90 days, Lam Research Corp insiders filed 0 open-market purchases and 7 sales; 3,142 institutions reported holding it in 13F filings for Q2 2026, worth $463.5B in total; 6 superinvestors hold it, including Coatue Management and Tiger Global Management.
Members of Congress who traded LRCX
Since 2020, newest trade first. Options and trades reported under an earlier ticker are included.
- Trades
- 89
- Filings
- 73
- Members
- 23
- Buys / sells
- 37 / 52
- Estimated volume
- $1.37M
- Sum of range midpoints
| Member | Trades | Buys / sells | Est. volume | Last traded | Last filed |
|---|---|---|---|---|---|
| Sheldon WhitehouseDemocrat · Senate · RI | 3 | 0 / 3 | $73.0K | Aug 13, 2026 | Sep 2, 2026 |
| David J. TaylorRepublican · House · OH | 13 | 1 / 12 | $153.0K | Jun 5, 2026 | Jun 12, 2026 |
| Alan ArmstrongRepublican · Senate · OK | 1 | 1 / 0 | $8.00K | Mar 27, 2026 | Jul 21, 2026 |
| Cleo FieldsDemocrat · House · LA | 1 | 1 / 0 | $32.5K | Feb 3, 2026 | Feb 24, 2026 |
| John BoozmanRepublican · Senate · AR | 5 | 0 / 5 | $40.0K | Jan 8, 2026 | Feb 15, 2026 |
| Markwayne MullinRepublican · Senate · OK | 6 | 5 / 1 | $255.5K | Dec 29, 2025 | Jan 16, 2026 |
| Val T. HoyleDemocrat · House · OR | 3 | 1 / 2 | $24.0K | Sep 23, 2025 | Oct 10, 2025 |
| Jonathan L. JacksonDemocrat · House · IL | 4 | 2 / 2 | $81.0K | Sep 3, 2025 | Oct 15, 2025 |
| Byron DonaldsRepublican · House · FL | 2 | 2 / 0 | $16.0K | Aug 7, 2025 | Sep 5, 2025 |
| Jefferson ShreveRepublican · House · IN | 4 | 1 / 3 | $215.0K | May 12, 2025 | Jun 22, 2025 |
| Robert P. Bresnahan, Jr.Republican · House · PA | 2 | 1 / 1 | $16.0K | Apr 8, 2025 | May 8, 2025 |
| Julie JohnsonDemocrat · House · TX | 1 | 0 / 1 | $8.00K | Apr 7, 2025 | May 14, 2025 |
| Marjorie Taylor GreeneRepublican · House · GA | 4 | 4 / 0 | $32.0K | Apr 4, 2025 | Apr 7, 2025 |
| Gilbert Ray Cisneros, Jr.Democrat · House · CA | 1 | 0 / 1 | $32.5K | Jan 28, 2025 | Feb 11, 2025 |
| William R. KeatingDemocrat · House · MA | 3 | 2 / 1 | $24.0K | Jan 24, 2025 | Feb 25, 2025 |
| Josh GottheimerDemocrat · House · NJ | 12 | 4 / 8 | $96.0K | Oct 22, 2024 | Nov 6, 2024 |
| John JamesRepublican · House · MI | 3 | 1 / 2 | $24.0K | Sep 4, 2024 | Sep 6, 2024 |
| Kathy E. ManningDemocrat · House · NC | 11 | 7 / 4 | $137.0K | Jul 2, 2024 | Aug 16, 2024 |
| Tommy TubervilleRepublican · Senate · AL | 1 | 0 / 1 | $8.00K | Jan 19, 2024 | Feb 14, 2024 |
| John R. CurtisRepublican · House · UT | 4 | 1 / 3 | $32.0K | Dec 4, 2023 | Dec 15, 2023 |
| Greg StantonDemocrat · House · AZ | 2 | 1 / 1 | $16.0K | Oct 24, 2023 | Nov 9, 2023 |
| Dan SullivanRepublican · Senate · AK | 2 | 1 / 1 | $16.0K | Aug 22, 2023 | Sep 22, 2023 |
| Deborah K. RossDemocrat · House · NC | 1 | 1 / 0 | $32.5K | Apr 27, 2021 | Apr 30, 2021 |
Trades
Every reported trade in Lam Research Corp, newest filings first.
| Member | Asset | Type | Owner | Traded | Filed | Delay | Amount | Source |
|---|---|---|---|---|---|---|---|---|
| William R. KeatingDemocrat · House · MA | LRCXLam Research Corporation - Common Stock | Sell | Self | Jan 24, 2025 | Feb 25, 2025 | 32 days | $1K-$15K | Filing |
| John BoozmanRepublican · Senate · AR | LRCXLam Research Corp | Sell (partial) | Joint | Feb 5, 2025 | Mar 6, 2025 | 29 days | $1K-$15K | Filing |
| Marjorie Taylor GreeneRepublican · House · GA | LRCXLam Research Corporation - Common Stock | Buy | Self | Apr 4, 2025 | Apr 7, 2025 | 3 days | $1K-$15K | Filing |
| Jefferson ShreveRepublican · House · IN | LRCXLam Research Corporation - Common Stock | Buy | Self | Mar 31, 2025 | Apr 11, 2025 | 11 days | $50K-$100K | Filing |
| Jefferson ShreveRepublican · House · IN | LRCXLam Research Corporation - Common Stock | Sell (partial) | Self | Mar 5, 2025 | Apr 11, 2025 | 37 days | $50K-$100K | Filing |
| Jefferson ShreveRepublican · House · IN | LRCXLam Research Corporation - Common Stock | Sell (partial) | Self | Apr 7, 2025 | May 8, 2025 | 31 days | $15K-$50K | Filing |
| Robert P. Bresnahan, Jr.Republican · House · PA | LRCXLam Research Corporation - Common Stock | Sell | Self | Apr 8, 2025 | May 8, 2025 | 30 days | $1K-$15K | Filing |
| Markwayne MullinRepublican · Senate · OK | LRCXLam Research Corp | Sell (partial) | Joint | Apr 8, 2025 | May 12, 2025 | 34 days | $50K-$100K | Filing |
| John BoozmanRepublican · Senate · AR | LRCXLam Research Corp | Sell (partial) | Joint | Apr 16, 2025 | May 14, 2025 | 28 days | $1K-$15K | Filing |
| Julie JohnsonDemocrat · House · TX | LRCXLam Research Corporation - Common Stock | Sell | Joint | Apr 7, 2025 | May 14, 2025 | 37 days | $1K-$15K | Filing |
| Markwayne MullinRepublican · Senate · OK | LRCXLam Research Corp | Buy | Joint | May 13, 2025 | Jun 11, 2025 | 29 days | $15K-$50K | Filing |
| Jefferson ShreveRepublican · House · IN | LRCXLam Research Corporation - Common Stock | Sell | Self | May 12, 2025 | Jun 22, 2025 | 41 days | $15K-$50K | Filing |
| Markwayne MullinRepublican · Senate · OK | LRCXLam Research Corp | Buy | Joint | Jan 2, 2024 | Aug 12, 2025Amended | 24 days | $15K-$50K | Filing |
| David J. TaylorRepublican · House · OH | LRCXLam Research Corporation - Common Stock | Sell | Self | Jul 18, 2025 | Sep 2, 2025 | 46 daysLate | $1K-$15K | Filing |
| David J. TaylorRepublican · House · OH | LRCXLam Research Corporation - Common Stock | Sell | Self | Jul 18, 2025 | Sep 2, 2025 | 46 daysLate | $1K-$15K | Filing |
| Sheldon WhitehouseDemocrat · Senate · RI | LRCXLam Research Corp | Sell (partial) | Spouse | Aug 28, 2025 | Sep 3, 2025 | 6 days | $15K-$50K | Filing |
| Byron DonaldsRepublican · House · FL | LRCXLam Research Corporation - Common Stock | Buy | Spouse | Aug 7, 2025 | Sep 5, 2025 | 29 days | $1K-$15K | Filing |
| Byron DonaldsRepublican · House · FL | LRCXLam Research Corporation - Common Stock | Buy | Self | Aug 7, 2025 | Sep 5, 2025 | 29 days | $1K-$15K | Filing |
| Val T. HoyleDemocrat · House · OR | LRCXLam Research Corporation - Common Stock | Sell (partial) | Spouse | Feb 4, 2025 | Sep 12, 2025 | 220 daysLate | $1K-$15K | Filing |
| Val T. HoyleDemocrat · House · OR | LRCXLam Research Corporation - Common Stock | Buy | Spouse | Oct 29, 2024 | Sep 12, 2025 | 318 daysLate | $1K-$15K | Filing |
| Jonathan L. JacksonDemocrat · House · IL | LRCXLam Research Corporation - Common Stock | Buy | Spouse | Aug 13, 2025 | Sep 23, 2025 | 41 days | $1K-$15K | Filing |
| David J. TaylorRepublican · House · OH | LRCXLam Research Corporation - Common Stock | Sell | Self | Sep 22, 2025 | Oct 7, 2025 | 15 days | $1K-$15K | Filing |
| David J. TaylorRepublican · House · OH | LRCXLam Research Corporation - Common Stock | Sell | Self | Sep 22, 2025 | Oct 7, 2025 | 15 days | $1K-$15K | Filing |
| Val T. HoyleDemocrat · House · OR | LRCXLam Research Corporation - Common Stock | Sell | Spouse | Sep 23, 2025 | Oct 10, 2025 | 17 days | $1K-$15K | Filing |
| Jonathan L. JacksonDemocrat · House · IL | LRCXLam Research Corporation - Common Stock | Sell | Spouse | Sep 3, 2025 | Oct 15, 2025 | 42 days | $1K-$15K | Filing |
| Markwayne MullinRepublican · Senate · OK | LRCXLam Research Corporation - Common Stock | Buy | Joint | Dec 29, 2025 | Jan 16, 2026 | 18 days | $50K-$100K | Filing |
| David J. TaylorRepublican · House · OH | LRCXLam Research Corporation - Common Stock | Sell | Self | Jan 8, 2026 | Jan 21, 2026 | 13 days | $15K-$50K | Filing |
| David J. TaylorRepublican · House · OH | LRCXLam Research Corporation - Common Stock | Sell | Self | Jan 8, 2026 | Jan 21, 2026 | 13 days | $15K-$50K | Filing |
| David J. TaylorRepublican · House · OH | LRCXLam Research Corporation - Common Stock | Sell | Self | Jan 16, 2026 | Feb 2, 2026 | 17 days | $1K-$15K | Filing |
| John BoozmanRepublican · Senate · AR | LRCXLam Research Corp | Sell (partial) | Joint | Jan 8, 2026 | Feb 15, 2026 | 38 days | $1K-$15K | Filing |
| Cleo FieldsDemocrat · House · LA | LRCXLam Research Corporation - Common Stock | Buy | Self | Feb 3, 2026 | Feb 24, 2026 | 21 days | $15K-$50K | Filing |
| David J. TaylorRepublican · House · OH | LRCXLam Research Corporation - Common Stock | Sell | Self | Feb 26, 2026 | Mar 6, 2026 | 8 days | $1K-$15K | Filing |
| David J. TaylorRepublican · House · OH | LRCXLam Research Corporation - Common Stock | Sell | Self | Feb 26, 2026 | Mar 6, 2026 | 8 days | $1K-$15K | Filing |
| David J. TaylorRepublican · House · OH | LRCXLam Research Corporation - Common Stock | Buy | Self | Mar 12, 2026 | Mar 20, 2026 | 8 days | $1K-$15K | Filing |
| David J. TaylorRepublican · House · OH | LRCXLam Research Corporation - Common Stock | Sell | Self | Apr 27, 2026 | May 7, 2026 | 10 days | $1K-$15K | Filing |
| David J. TaylorRepublican · House · OH | LRCXLam Research Corporation - Common Stock | Sell | Self | Apr 27, 2026 | May 7, 2026 | 10 days | $1K-$15K | Filing |
| David J. TaylorRepublican · House · OH | LRCXLam Research Corporation - Common Stock | Sell | Self | Jun 5, 2026 | Jun 12, 2026 | 7 days | $1K-$15K | Filing |
| Alan ArmstrongRepublican · Senate · OK | LRCXLam Research Corporation - Common Stock | Buy | Self | Mar 27, 2026 | Jul 21, 2026 | 116 daysLate | $1K-$15K | Filing |
| Sheldon WhitehouseDemocrat · Senate · RI | LRCXLam Research Corporation - Common Stock | Sell (partial) | Spouse | Aug 13, 2026 | Sep 2, 2026 | 20 days | $1K-$15K | Filing |
Source: U.S. House Clerk and Senate Office of Public Records (eFD). Amounts are the ranges filers report.