Lam Research Corporation (LRCX) Institutional Ownership & Insider Trading

3,106 institutions reported holding Lam Research Corporation shares in 13F filings for the quarter ended 2026-06-30, according to EquiReason's reading of their SEC filings. 69 insider trades on Form 4 since 2025-10-01.

Source: SEC EDGAR filings · figures as of 2026-09-27 · read by EquiReason

LRCXLam Research CorporationFollow LRCX — free

Semiconductor Equipment & Materials · Technology

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Market cap: 287.4B
P/E TTM: 34.3
Dividend yield: 0.5%
52-week: —
Next earnings: 26 Jan, in 94 days

Institutions · all 13F filers

quarter to 30 Jun 2026 · filers in both quarters

3,106 institutions held 85.8% of the shares. Across filers that reported both quarters, shares held changed +1.7%.

Largest moves, shares (millions)

Institutional flow by quarter

net shares added or trimmed, millions · filers in both quarters

Quarter	Holders	Shares held, M	Change	Increased	New	Decreased	Closed
Jun 26	3,106	1072	+1.7%	887	534	1036	71
Mar 26	2,609	1011	-2.0%	778	316	945	74
Dec 25	2,326	1037	-2.6%	650	240	761	88
Sep 25	2,056	1044	+0.7%	615	276	598	61
Jun 25	1,838	1051	+1.4%	612	181	543	101
Mar 25	1,745	1018	+0.6%	608	210	454	100
Dec 24	1,621	1030	—	—	—	—	—
Sep 24	1,381	94	-14.2%	467	71	442	381

Lam Research Corporation — questions

Who owns Lam Research Corporation stock?: 3,106 institutions reported Lam Research Corporation shares in 13F filings for the quarter ended 2026-06-30. The largest: BlackRock, Inc. (10.6%), VANGUARD CAPITAL MANAGEMENT LLC (6.5%), STATE STREET CORP (4.9%).
Are Lam Research Corporation insiders buying or selling?: 69 insider trades on Form 4 since 2025-10-01; the full list, with dates, people and plan status, is on this page.

Every figure on this page comes from Lam Research Corporation's own SEC filings — see them on SEC EDGAR. Price data is licensed and shown only inside the product.

How these figures are read: methodology · EquiReason.

Important information. Figures on this page are taken from filings submitted to the U.S. Securities and Exchange Commission (SEC) and processed automatically by EquiReason. They may contain errors, omissions or delays, and EquiReason makes no representation or warranty as to their accuracy, completeness or timeliness. Always verify figures against the original filing on SEC EDGAR before relying on them.

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