Institutional HoldersBeta

Who holds a company, from every 13F filed for the quarter, one row per filer exactly as filed, against the latest share count the company reported.

LAM RESEARCH CORP

CIK 0000707549LRCX· quarter ending 2026-06-30

Shares outstanding

1,251,321,000

as of 2026-08-04 · 10-K cover page, filed 2026-08-07

Held by 13F filers

1,943,696

selection includes debt or preferreds — no % of shares outstanding

Holders

-6 vs 2026-03-31 · 2 new, 8 exited

Value

$408.1M

shares +4.5% vs prior quarter

Share classes (cover page of the 10-K filed 2026-08-07, as of 2026-08-04)

Class	Listed	Shares outstanding	Held by 13F filers	% of class	Holders	CUSIP
Common stock	LRCX · NASDAQ	1,251,321,000	1,074,411,996	85.9%	3,116	512807306

Each class is compared with its own share count; classes are not added together. A class that is not exchange-listed cannot be held by 13F filers.

Securities (CUSIPs held in 13F this quarter)

tick to combine

Count	CUSIP	Class (as filers write it)	Holders	Shares held	Class shares	% of class	Value	Options	Mapped via
	512807306	Stock	3,116	1,074,411,996	1,251,321,000	85.9%	$463.4B	61 call / 60 put	13DG	holders →
	512807108	Common Stocknot common	27	1,943,696	—	—	$408.1M	—	NPORT	holders →

Totals combine the ticked CUSIPs and update as you tick: common-stock classes by default; preferreds, notes, warrants and depositary shares are listed but not counted. "holders →" shows a single CUSIP on its own. Bonds are held as a principal amount, not shares. Options positions are never counted as holdings. 2 further CUSIPs map to this company (mostly bonds) but no 13F filer held them this quarter.

Top holders (27 of 27 · 512807108)

change vs 2026-03-31

#	Filer	Shares / principal	% of class	Value	Change
1	VESTOR CAPITAL, LLC	970,985	—	$208K	+911,130 (+1522.2%)
2	Mediolanum International Funds Ltd	349,671	—	$143.7M	-61,650 (-15.0%)
3	Harvest Fund Management Co., Ltd	139,588	—	$60.5M	-44,561 (-24.2%)
4	Covington Investment Advisors Inc.	138,717	—	$60.1M	-2,822 (-2.0%)
5	CULLINAN ASSOCIATES INC	64,500	—	$27.9M	—
6	MARCO INVESTMENT MANAGEMENT LLC	50,270	—	$21.8M	-9,100 (-15.3%)
7	Rheos Capital Works Inc.	47,500	—	$20.6M	—
8	KKM Financial LLC	40,744	—	$11.9M	-34,304 (-45.7%)
9	BERKSHIRE CAPITAL HOLDINGS INC	21,170	—	$9.2M	+21,160 (+211600.0%)
10	MATTHEWS INTERNATIONAL CAPITAL MANAGEMENT LLC	20,295	—	$8.8M	-7,840 (-27.9%)
11	DARA CAPITAL US, INC.	18,964	—	$8.2M	+4,341 (+29.7%)
12	Joseph Group Capital Management	18,363	—	$8.0M	-3,631 (-16.5%)
13	Cohen Klingenstein LLC	15,000	—	$6.5M	—
14	KIRTLAND HILLS CAPITAL MANAGEMENT, LLC	12,101	—	$5.2M	+488 (+4.2%)
15	FERGUSON WELLMAN CAPITAL MANAGEMENT, INC	11,626	—	$5.0M	+1,677 (+16.9%)
16	Ironwood Investment Counsel, LLC	5,567	—	$2.4M	-521 (-8.6%)
17	Berbice Capital Management LLC	5,300	—	$2.3M	+100 (+1.9%)
18	Sterling Investment Advisors, Ltd.	3,780	—	$1.6M	-350 (-8.5%)
19	KEYNOTE FINANCIAL SERVICES LLC	3,773	—	$1.6M	-1,300 (-25.6%)
20	U S WEALTH GROUP, LLC.	1,750	—	$758K	NEW
21	Greenwich Wealth Management LLC	1,188	—	$515K	-35 (-2.9%)
22	Councilmark Asset Management, LLC	1,072	—	$465K	—
23	CHECK CAPITAL MANAGEMENT INC/CA	1,000	—	$433K	NEW
24	Byrne Asset Management LLC	572	—	$248K	-25 (-4.2%)
25	OGOREK ANTHONY JOSEPH /NY/ /ADV	168	—	$72K	-28 (-14.3%)
26	Hanson & Doremus Investment Management	31	—	$13K	—
27	HUNTINGTON NATIONAL BANK	1	—	$814	—

Exited since 2026-03-31 (8 filers; largest 8 shown)

Cardano Risk Management B.V.	−652,032
Accent Capital Management, LLC	−13,907
Kentucky Retirement Systems	−13,407
DCF Advisers, LLC	−7,500
Poehling Capital Management, INC.	−3,300
NBT BANK N A /NY	−1,300
Promethos Capital, LLC	−1,155
Phillip James Consulting Co.	−66

Large holders from 13D/13G (latest per reporting person, last 2 years)

Filed when a holder crosses 5% or changes materially, so often more current than the quarter-end 13F. Percentages are the filer's own, against the share count they used.

Reporting person	Form	Filed	Event	Shares	% of class
Vanguard Capital Management	SCHEDULE 13G	2026-04-30	2026-03-31	93,575,293	7.49%
The Vanguard Group	SCHEDULE 13G/A	2026-03-27	2026-03-13	0	0%

Source: SEC Form 13F-HR information tables for the quarter ending 2026-06-30 (filed within 45 days of quarter end; amendments applied; values normalised to dollars), the share count from the company's latest 10-K/10-Q XBRL cover page, and Schedule 13D/13G filings. Each row is a legal 13F filer as filed — related entities (e.g. Vanguard's advisers) are not merged. Retail brokerage accounts are not reported on 13F, so the remainder is mostly retail and insiders.