Comparable stake leader
VANGUARD CAPITAL MANAGEMENT LLC
SEC ownership of LAM RESEARCH CORP
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0000707549.
Disclosed value leader
BlackRock, Inc.
Comparable rows
1/50
Latest evidence
30 Jun 2026
- Public ticker
- LRCX on Nasdaq
- Parsed ownership sources
-
13F and 13D/G
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
VANGUARD CAPITAL MANAGEMENT LLC
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
1 of 50
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
VANGUARD CAPITAL MANAGEMENT LLC
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
30 Jun 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0000707549
- Issuer location
- Fremont, CA
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
3 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of LAM RESEARCH CORP (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
VANGUARD CAPITAL MANAGEME...
Disclosed value leader
BlackRock, Inc.
Comparable rows
1/50
Latest evidence
30 Jun 2026
13F
13D/G
Lead comparable stake: 7.5%
49 rows are not safely comparable across share classes.
13D/G row: VANGUARD CAPITAL MANAGEMENT LLC
Showing 1-8 of 50 holder rows.
Quick read
VANGUARD CAPITAL MANAGEMENT LLC leads the comparable SEC ownership view at 7.5%.
1 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens VANGUARD CAPITAL MANAGEMENT LLC's linked filing trail.
Comparable ownership
Top 1
VANGUARD CAPITAL MANAGEMENT LLC
7.5%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 50 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| VANGUARD CAPITAL MANAGEMENT LLC |
13F
13D/G
Company · Vanguard Capital Management
|
7.5%
Reported 13D/G
· 31 Mar 2026
|
$35,395,971,288
81,683,639 shares
|
— | 30 Jun 2026 |
| BlackRock, Inc. |
13F
Company
|
—
denominator unverified
|
$57,514,926,951
132,727,776 shares
|
— | 30 Jun 2026 |
| STATE STREET CORP |
13F
Company
|
—
denominator unverified
|
$26,320,467,878
60,704,130 shares
|
— | 30 Jun 2026 |
| Invesco Ltd. |
13F
Company
|
—
denominator unverified
|
$22,671,814,148
52,319,973 shares
|
— | 30 Jun 2026 |
| JPMORGAN CHASE & CO |
13F
Company
|
—
denominator unverified
|
$18,621,406,094
45,317,479 shares
|
— | 30 Jun 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC |
13F
Company
|
—
denominator unverified
|
$15,875,275,948
36,635,534 shares
|
— | 30 Jun 2026 |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
Company
|
—
denominator unverified
|
$14,923,007,951
34,506,240 shares
|
— | 30 Jun 2026 |
| FMR LLC |
13F
Company
|
—
denominator unverified
|
$14,593,625,918
33,677,858 shares
|
— | 30 Jun 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Net insider flow leans to selling over the last 12 months. Net value: -$175,780,107.
Buys
$0
Insiders: 0
Sells
$175,780,107
Insiders: 8
Net
-$175,780,107
Shares: -689,829
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 0
Shares: 689,829
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 136,442 | $0 | $38,810,626 | -$38,810,626 |
| 3-6 | 0 | 194,941 | $0 | $68,325,702 | -$68,325,702 |
| 6-9 | 0 | 120,066 | $0 | $27,953,242 | -$27,953,242 |
| 9-12 | 0 | 238,380 | $0 | $40,690,536 | -$40,690,536 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-20 of 27 reporting-owner rows connected to LAM RESEARCH CORP. Open a relationship link for the CIK-to-CIK filing trail.
Rows
27
Largest Forms 3/4/5 holder
Timothy Archer
Net 12M change
-$175.78M
Full value: -$175,780,107 · USD · 12-month changeLatest report
10 Nov 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Timothy Archer | President and CEO | $278,148,384 | -$64,164,866 | -19% | Mixed | 23 Oct 2026 |
| Douglas R. Bettinger | Chief Financial Officer & EVP | $246,183,112 | -$26,534,860 | -9.7% | Mixed | 04 Mar 2026 |
| Vahid Vahedi | Senior Vice President | $66,682,856 | Mixed | 27 Feb 2026 | ||
| Seshasayee Varadarajan | Senior Vice President | $63,836,704 | -$17,406,370 | -21% | Mixed | 02 Sep 2026 |
| Eric Brandt | Director | $47,818,244 | -$47,025,856 | -50% | Median | 06 Nov 2026 |
| Catherine P. Lego | Director | $36,593,412 | Mixed | 26 Apr 2022 | ||
| Abhijit Y. Talwalkar | Director | $28,908,222 | -$6,124,470 | -17% | Median | 06 Nov 2026 |
| Patrick J. Lord | Executive Vice President | $26,232,516 | Mixed | 27 Feb 2026 | ||
| Michael R. Cannon | Director | $25,625,112 | Mixed | 07 Nov 2025 | ||
| Karthikeyan Rammohan | SVP, Global Ops & Ent Solns | $22,442,101 | Mixed | 06 Mar 2026 | ||
| Richard A. Gottscho | Executive Vice President & CTO | $22,251,336 | Mixed | 01 Mar 2023 | ||
| Neil J. Fernandes | Senior Vice President | $20,187,036 | -$7,007,120 | -26% | Mixed | 01 Jun 2026 |
| Scott Gerald Meikle | Senior Vice President | $16,924,749 | Mixed | 01 Mar 2023 | ||
| Ava Harter | Chief Legal Officer | $14,977,773 | -$4,330,837 | -22% | Mixed | 31 Aug 2026 |
| Christina Correia | CVP , Chief Accounting Officer | $13,653,963 | Mixed | 27 Feb 2026 | ||
| Bethany Mayer | Director | $7,473,930 | -$3,185,728 | -30% | Median | 10 Nov 2026 |
| George M. Schisler | Chief Legal Officer | $6,847,753 | Mixed | 03 May 2024 | ||
| Jyoti Mehra | Director | $6,350,426 | Median | 06 Nov 2026 | ||
| Lih Shyng (rick) Tsai | Director | $5,459,988 | Mixed | 10 Nov 2023 | ||
| Sohail U. Ahmed | Director | $4,715,288 | Mixed | 06 Nov 2025 |
Recent insider transactions for LAM RESEARCH CORP
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Bethany Mayer | LRCX | Common Stock | Gift | 4.29% | 900 | 21,895 | 10 Nov 2026 | By Trust | ||
| Bethany Mayer | LRCX | Common Stock | Gift | -51.2% | -900 | 856 | 10 Nov 2026 | Direct | ||
| Ita M. Brennan | LRCX | Common Stock | Award | 16% | 856 | 6,198 | 06 Nov 2026 | Direct | ||
| Eric Brandt | LRCX | Common Stock | Award | 0.59% | 856 | 145,561 | 06 Nov 2026 | Direct | ||
| Anirudh Devgan | LRCX | Common Stock | Award | 75% | 856 | 1,997 | 06 Nov 2026 | Direct | ||
| John M. Dineen | LRCX | Common Stock | Award | 9.37% | 856 | 9,991 | 06 Nov 2026 | Direct | ||
| Mark Fields | LRCX | Common Stock | Award | 16.1% | 856 | 6,178 | 06 Nov 2026 | Direct | ||
| Ho Kyu Kang | LRCX | Common Stock | Award | 9.33% | 856 | 10,029 | 06 Nov 2026 | Direct | ||
| Jyoti Mehra | LRCX | Common Stock | Award | 4.63% | 856 | 19,331 | 06 Nov 2026 | Direct | ||
| Abhijit Y. Talwalkar | LRCX | Common Stock | Award | 0.98% | 856 | 87,998 | 06 Nov 2026 | Direct | ||
| Bethany Mayer | LRCX | Common Stock | Sale | -0.9% | -$3,336 | $208.50 | -16 | 1,756 | 06 Nov 2026 | Direct |
| Bethany Mayer | LRCX | Common Stock | Award | 93.4% | 856 | 1,772 | 06 Nov 2026 | Direct | ||
| Bethany Mayer | LRCX | Common Stock | Sale | -44% | -$174,422 | $242.59 | -719 | 916 | 02 Nov 2026 | Direct |
| Ho Kyu Kang | LRCX | Common Stock | Tax liability | -5.08% | -491 | 9,173 | 30 Oct 2026 | Direct | ||
| Timothy Archer | LRCX | Common Stock | Sale | -2.84% | -$7,128,428 | $227.02 | -31,400 | 1,075,966 | 23 Oct 2026 | Direct |
| Timothy Archer | LRCX | Common Stock | Options Exercise | 2.92% | 31,400 | 1,107,366 | 23 Oct 2026 | Direct | ||
| Timothy Archer | LRCX | Employee Stock Option (Right to Buy) | Options Exercise | -100% | -31,400 | 0 | 23 Oct 2026 | Direct | ||
| Timothy Archer | LRCX | Common Stock | Sale | -2.71% | -$9,577,800 | $319.26 | -30,000 | 1,075,966 | 09 Sep 2026 | Direct |
| Timothy Archer | LRCX | Common Stock | Options Exercise | 2.79% | 30,000 | 1,105,966 | 09 Sep 2026 | Direct | ||
| Timothy Archer | LRCX | Employee Stock Option (Right to Buy) | Options Exercise | -48.9% | -30,000 | 31,400 | 09 Sep 2026 | Direct | ||
| Bethany Mayer | LRCX | Common Stock | Sale | -31.3% | -$3,007,970 | $314.74 | -9,557 | 20,995 | 09 Sep 2026 | By Trust |
| Seshasayee Varadarajan | LRCX | Common Stock | Options Exercise | 20.6% | 39,750 | 233,026 | 02 Sep 2026 | Direct | ||
| Seshasayee Varadarajan | LRCX | Common Stock | Sale | -22.5% | -$17,406,370 | $291.32 | -59,750 | 205,546 | 02 Sep 2026 | Direct |
| Seshasayee Varadarajan | LRCX | Employee Stock Option (Right to Buy) | Options Exercise | -100% | -39,750 | 0 | 02 Sep 2026 | Direct | ||
| Ava Harter | LRCX | Common Stock | Sale | -10.5% | -$1,512,300 | $302.46 | -5,000 | 42,462 | 31 Aug 2026 | Direct |
| Timothy Archer | LRCX | Common Stock | Sale | -2.71% | -$9,000,000 | $300.00 | -30,000 | 1,075,966 | 06 Aug 2026 | Direct |
| Timothy Archer | LRCX | Common Stock | Options Exercise | 2.79% | 30,000 | 1,105,966 | 06 Aug 2026 | Direct | ||
| Timothy Archer | LRCX | Employee Stock Option (Right to Buy) | Options Exercise | -32.8% | -30,000 | 61,400 | 06 Aug 2026 | Direct | ||
| Ava Harter | LRCX | Common Stock | Tax liability | -10.9% | -5,790 | 47,462 | 05 Aug 2026 | Direct | ||
| Abhijit Y. Talwalkar | LRCX | Common Stock | Sale | -17.3% | -$6,124,470 | $335.00 | -18,282 | 87,142 | 13 Jul 2026 | Direct |
| Timothy Archer | LRCX | Common Stock | Sale | -2.71% | -$11,700,300 | $390.01 | -30,000 | 1,075,966 | 02 Jul 2026 | Direct |
| Timothy Archer | LRCX | Common Stock | Options Exercise | 2.79% | 30,000 | 1,105,966 | 02 Jul 2026 | Direct | ||
| Timothy Archer | LRCX | Employee Stock Option (Right to Buy) | Options Exercise | -24.7% | -30,000 | 91,400 | 02 Jul 2026 | Direct | ||
| Eric Brandt | LRCX | Common Stock | Sale | -27.4% | -$20,011,346 | $367.18 | -54,500 | 144,705 | 12 Jun 2026 | Direct |
| Eric Brandt | LRCX | Common Stock | Sale | -21.5% | -$19,118,360 | $350.80 | -54,500 | 199,205 | 11 Jun 2026 | Direct |
| Neil J. Fernandes | LRCX | Common Stock | Sale | -11.6% | -$2,371,226 | $309.60 | -7,659 | 58,470 | 01 Jun 2026 | Direct |
| Neil J. Fernandes | LRCX | Common Stock | Sale | -21.6% | -$4,635,894 | $255.14 | -18,170 | 66,129 | 01 May 2026 | Direct |
| Ava Harter | LRCX | Common Stock | Sale | -10.2% | -$1,554,547 | $258.66 | -6,010 | 53,205 | 27 Apr 2026 | Direct |
| Ava Harter | LRCX | Common Stock | Options Exercise | 11.3% | 6,010 | 59,215 | 27 Apr 2026 | Direct | ||
| Ava Harter | LRCX | Employee Stock Option (Right to Buy) | Options Exercise | -50% | -6,010 | 6,010 | 27 Apr 2026 | Direct | ||
| Vahid Vahedi | LRCX | Common Stock | Tax liability | -1.21% | -3,382 | 276,896 | 27 Mar 2026 | Direct | ||
| Ava Harter | LRCX | Common Stock | Tax liability | -5.17% | -3,199 | 58,705 | 27 Mar 2026 | Direct | ||
| Abhijit Y. Talwalkar | LRCX | Common Stock | Gift | -4.16% | -4,571 | 105,424 | 10 Mar 2026 | Direct | ||
| Douglas R. Bettinger | LRCX | Common Stock | Sale | -4.42% | -$11,214,270 | $224.03 | -50,057 | 1,081,705 | 04 Mar 2026 | Direct |
| Douglas R. Bettinger | LRCX | Common Stock | Options Exercise | 7.38% | 77,750 | 1,131,762 | 04 Mar 2026 | Direct | ||
| Douglas R. Bettinger | LRCX | Employee Stock Option (Right to Buy) | Options Exercise | -100% | -77,750 | 0 | 04 Mar 2026 | Direct | ||
| Ava Harter | LRCX | Common Stock | Sale | -2.74% | -$333,990 | $222.66 | -1,500 | 53,205 | 04 Mar 2026 | Direct |
| Douglas R. Bettinger | LRCX | Common Stock | Sale | -3.69% | -$9,284,542 | $230.22 | -40,329 | 1,054,012 | 02 Mar 2026 | Direct |
| Douglas R. Bettinger | LRCX | Common Stock | Options Exercise | 6.45% | 66,310 | 1,094,341 | 02 Mar 2026 | Direct | ||
| Douglas R. Bettinger | LRCX | Employee Stock Option (Right to Buy) | Options Exercise | -100% | -66,310 | 0 | 02 Mar 2026 | Direct |
* marks a reported price that did not pass the local price check.