SEC Form 4 · Updated Daily
LRCX
— LAM RESEARCH CORPORATION OwnershipInsider and institutional ownership derived from SEC Form 4 filings. Click any owner to see their holdings across every company they’ve filed on, and how their position has changed over time.
Current Reporting Owners
| Owner | Role | Shares Owned | As Of | Last Activity |
|---|---|---|---|---|
| Bettinger Douglas R | Director | 1,131,762 | 2026-03-04 | M |
| ARCHER TIMOTHY | Officer | 1,107,366 | 2026-10-23 | M |
| Vahedi Vahid | Officer | 309,870 | 2026-02-27 | A |
| Varadarajan Seshasayee | Officer | 233,026 | 2026-09-02 | M |
| BRANDT ERIC | Director | 198,905 | 2026-06-12 | S |
| CANNON MICHAEL R | Director | 191,375 | 2025-11-07 | A |
| Anstice Martin B | Director | 154,381 | 2018-05-22 | M |
| BAGLEY JAMES W | Director | 142,000 | 2011-03-08 | S |
| LORD PATRICK J | Officer | 107,397 | 2026-02-27 | F |
| INMAN GRANT M | Director | 87,638 | 2014-11-07 | A |
| TALWALKAR ABHIJIT Y | Director | 87,142 | 2026-07-13 | S |
| Rammohan Karthikeyan | Officer | 79,856 | 2026-03-06 | — |
| Correia Christina | Officer | 76,796 | 2026-02-27 | A |
| ARSCOTT DAVID G | Director | 63,933 | 2011-01-31 | A |
| Marks Jeffrey | Officer | 61,722 | 2010-08-25 | F |
| SPIVEY WILLIAM | Director | 60,016 | 2014-11-07 | A |
| ELKUS RICHARD J JR | Director | 59,368 | 2010-03-11 | S |
| Fernandes Neil J | Officer | 58,470 | 2026-06-01 | S |
| MADDOCK ERNEST E | Director | 55,365 | 2013-03-04 | F |
| Lego Catherine P | Director | 49,991 | 2022-04-26 | P |
| Harter Ava | Officer | 42,462.455 | 2026-08-31 | S |
| Bondur Thomas J | Officer | 34,505 | 2010-12-14 | S |
| Ahmed Sohail U | Director | 33,580 | 2025-11-06 | G |
| HARRIS JACK RAYMOND | Director | 33,578 | 2009-12-02 | S |
| O'Dowd Sarah A | Director | 32,084 | 2019-12-19 | S |
| Gottscho Richard A | Officer | 30,971 | 2023-03-01 | F |
| Srinivasan Mukund | Officer | 28,864 | 2012-01-05 | F |
| WOLPERT PATRICIA S | Director | 24,498 | 2010-02-01 | A |
| WHITAKER DELBERT | Director | 24,320 | 2012-06-04 | A |
| Saraswat Krishna | Director | 23,896 | 2015-11-06 | A |
| Meikle Scott Gerald | Officer | 23,056 | 2023-03-01 | F |
| Morita Masayuki | Officer | 22,990 | 2012-03-30 | F |
| Mayer Bethany | Director | 20,995 | 2026-09-09 | S |
| EL MANSY YOUSSEF A | Director | 19,286 | 2020-02-06 | S |
| Hariri Abdi | Officer | 18,616 | 2009-02-26 | A |
| Mehra Jyoti | Director | 18,475 | 2025-11-07 | A |
| Watanabe Seiichi | Director | 14,513 | 2009-02-02 | A |
| Lanza Stephen | Officer | 12,000 | 2008-09-29 | — |
| JENNINGS KEVIN | Officer | 11,804 | 2020-06-08 | G |
| BERDAHL ROBERT M | Director | 11,570 | 2012-02-03 | A |
| NEWBERRY STEPHEN G | Director | 9,847 | 2018-11-09 | A |
| Kang Ho Kyu | Director | 9,664 | 2025-11-07 | A |
| Dineen John M. | Director | 9,135 | 2025-11-07 | A |
| Perdikou Kim | Director | 8,910 | 2012-02-03 | A |
| Tsai Lih Shyng (Rick) | Director | 7,459 | 2023-11-10 | A |
| Hahn Ava | Officer | 5,775 | 2024-01-03 | M |
| Schisler George M | Officer | 5,661 | 2024-05-03 | S |
| Brennan Ita M | Director | 5,342 | 2025-11-07 | A |
| FIELDS MARK | Director | 5,322 | 2025-11-07 | A |
| VARON LESLIE F | Director | 2,834 | 2023-11-10 | A |
| Heckart Christine | Director | 2,310 | 2019-02-01 | S |
| Koh Young Bum | Director | 1,960 | 2017-11-10 | A |
| DEVGAN ANIRUDH | Director · Officer | 1,141 | 2026-02-06 | A |
| BRIGHT NICOLAS J | Officer | 1,032 | 2006-05-03 | C |
Recent Filings
| Date | Owner | Activity | Shares | Price | Owned After |
|---|---|---|---|---|---|
| 2026-10-23 | ARCHER TIMOTHY | Option exercise (derivative) | 31,400 | $0.00 | 0 |
| 2026-10-23 | ARCHER TIMOTHY | Open-market sale | 31,400 | $227.02 | 1,075,966 |
| 2026-10-23 | ARCHER TIMOTHY | Option exercise | 31,400 | $30.03 | 1,107,366 |
| 2026-09-09 | Mayer Bethany | Open-market sale | 9,557 | $314.74 | 20,995 |
| 2026-09-09 | ARCHER TIMOTHY | Option exercise (derivative) | 30,000 | $0.00 | 31,400 |
| 2026-09-09 | ARCHER TIMOTHY | Open-market sale | 30,000 | $319.26 | 1,075,966 |
| 2026-09-09 | ARCHER TIMOTHY | Option exercise | 30,000 | $30.03 | 1,105,966 |
| 2026-09-02 | Varadarajan Seshasayee | Option exercise (derivative) | 12,270 | $0.00 | 0 |
| 2026-09-02 | Varadarajan Seshasayee | Option exercise | 27,480 | $30.03 | 233,026 |
| 2026-09-02 | Varadarajan Seshasayee | Option exercise | 12,270 | $59.88 | 217,816 |
| 2026-09-02 | Varadarajan Seshasayee | Open-market sale | 20,000 | $291.32 | 205,546 |
| 2026-08-31 | Harter Ava | Open-market sale | 5,000 | $302.46 | 42,462.455 |
| 2026-08-06 | ARCHER TIMOTHY | Option exercise (derivative) | 30,000 | $0.00 | 61,400 |
| 2026-08-06 | ARCHER TIMOTHY | Open-market sale | 30,000 | $300.00 | 1,075,966 |
| 2026-08-06 | ARCHER TIMOTHY | Option exercise | 30,000 | $30.03 | 1,105,966 |
| 2026-08-05 | Harter Ava | Tax withholding | 5,790 | $307.42 | 47,462.455 |
| 2026-07-13 | TALWALKAR ABHIJIT Y | Open-market sale | 18,282 | $335.00 | 87,142 |
| 2026-07-02 | ARCHER TIMOTHY | Option exercise (derivative) | 30,000 | $0.00 | 91,400 |
| 2026-07-02 | ARCHER TIMOTHY | Open-market sale | 30,000 | $390.01 | 1,075,966 |
| 2026-07-02 | ARCHER TIMOTHY | Option exercise | 30,000 | $30.03 | 1,105,966 |
| 2026-06-12 | BRANDT ERIC | Open-market sale | 1,600 | $373.09 | 144,705 |
| 2026-06-12 | BRANDT ERIC | Open-market sale | 7,700 | $372.23 | 146,305 |
| 2026-06-12 | BRANDT ERIC | Open-market sale | 8,233 | $371.17 | 154,005 |
| 2026-06-12 | BRANDT ERIC | Open-market sale | 5,037 | $370.27 | 162,238 |
| 2026-06-12 | BRANDT ERIC | Open-market sale | 4,198 | $369.16 | 167,275 |
| 2026-06-12 | BRANDT ERIC | Open-market sale | 4,030 | $368.03 | 171,473 |
| 2026-06-12 | BRANDT ERIC | Open-market sale | 5,803 | $367.01 | 175,503 |
| 2026-06-12 | BRANDT ERIC | Open-market sale | 1,200 | $365.16 | 181,306 |
| 2026-06-12 | BRANDT ERIC | Open-market sale | 2,300 | $364.41 | 182,506 |
| 2026-06-12 | BRANDT ERIC | Open-market sale | 2,345 | $363.33 | 184,806 |
| 2026-06-12 | BRANDT ERIC | Open-market sale | 2,708 | $362.40 | 187,151 |
| 2026-06-12 | BRANDT ERIC | Open-market sale | 819 | $361.21 | 189,859 |
| 2026-06-12 | BRANDT ERIC | Open-market sale | 1,906 | $360.15 | 190,678 |
| 2026-06-12 | BRANDT ERIC | Open-market sale | 3,828 | $359.08 | 192,584 |
| 2026-06-12 | BRANDT ERIC | Open-market sale | 1,100 | $357.98 | 196,412 |
| 2026-06-12 | BRANDT ERIC | Open-market sale | 1,393 | $357.24 | 197,512 |
| 2026-06-12 | BRANDT ERIC | Open-market sale | 300 | $355.71 | 198,905 |
| 2026-06-11 | BRANDT ERIC | Open-market sale | 642 | $364.00 | 199,205 |
| 2026-06-11 | BRANDT ERIC | Open-market sale | 5,717 | $362.95 | 199,847 |
| 2026-06-11 | BRANDT ERIC | Open-market sale | 2,604 | $362.20 | 205,564 |
Source: SEC EDGAR Form 4 filings. For informational purposes only — not investment advice.