Lam Research Ownership & Insider Activity

Lam Research (LRCX) institutional and insider ownership, recent insider transactions and ownership breakdown.

Insiders own 0.4% of shares outstanding. Institutional investors hold 62.6%. Over the past 90 days, insiders made 4 sales worth $26.5M.

Shares Outstanding

1.251B

Shares Float

1.119B

Insider Shares Owned

4.485M

Insider % Owned

0.4%

Institutional Shares Held

782.865M

Institutional % Held

62.6%

Ownership Breakdown

Net Insider Activity by Month

Purchases (90d)

Sales (90d)

$26.5M total

Net Activity

Net Selling

Net Value (90d)

-$26.5M

Lam Research Insider Transactions (Last 6 Months)

Date	Insider	Title	Type	Shares	Price	Value
Sep 9, 2026	TIMOTHY ARCHER	PRESIDENT AND CEO	SELL-OPTIONS	—	$174.65	$8.7M
Sep 9, 2026	Bethany Mayer	DIRECTOR	SELL	9.557K	$314.74	$3.0M
Sep 2, 2026	Seshasayee Varadarajan	SENIOR VICE PRESIDENT	SELL	20.000K	$165.28	$15.8M
Aug 31, 2026	Ava Harter	CHIEF LEGAL OFFICER	SELL	5.000K	$302.46	$1.5M
Aug 6, 2026	TIMOTHY ARCHER	PRESIDENT AND CEO	SELL-OPTIONS	—	$165.02	$8.1M
Jul 13, 2026	ABHIJIT TALWALKAR	DIRECTOR	SELL	18.282K	$335.00	$6.1M
Jul 2, 2026	TIMOTHY ARCHER	PRESIDENT AND CEO	SELL-OPTIONS	—	$210.02	$10.8M
Jun 12, 2026	ERIC BRANDT	DIRECTOR	SELL	54.500K	$367.18	$20.0M
Jun 11, 2026	ERIC BRANDT	DIRECTOR	SELL	54.500K	$350.80	$19.1M
Jun 1, 2026	Neil Fernandes	SENIOR VICE PRESIDENT	SELL	7.659K	$309.60	$2.4M
May 1, 2026	Neil Fernandes	SENIOR VICE PRESIDENT	SELL	18.170K	$255.14	$4.6M
Apr 27, 2026	Ava Harter	CHIEF LEGAL OFFICER	SELL-OPTIONS	—	$167.85	$1.1M

Date	Member	Party	Chamber	Action	Amount
Aug 13, 2026	Sheldon Whitehouse	D	Senate	Sale (Partial)	$1,001 - $15,000
Jun 5, 2026	David Taylor	R	House	Sale	$1,001 - $15,000
Apr 27, 2026	David Taylor	R	House	Sale	$1,001 - $15,000
Apr 27, 2026	David Taylor	R	House	Sale	$1,001 - $15,000
Mar 27, 2026	Alan Armstrong	R	Senate	Purchase	$1,001 - $15,000
Mar 12, 2026	David Taylor	R	House	Purchase	$1,001 - $15,000
Feb 26, 2026	David Taylor	R	House	Sale	$1,001 - $15,000
Feb 26, 2026	David Taylor	R	House	Sale	$1,001 - $15,000
Feb 3, 2026	Cleo Fields	D	House	Purchase	$15,001 - $50,000
Jan 16, 2026	David Taylor	R	House	Sale	$1,001 - $15,000
Jan 8, 2026	John Boozman	R	Senate	Sale (Partial)	$1,001 - $15,000
Jan 8, 2026	David Taylor	R	House	Sale	$15,001 - $50,000
Jan 8, 2026	David Taylor	R	House	Sale	$15,001 - $50,000
Dec 29, 2025	Markwayne Mullin	R	Senate	Purchase	$50,001 - $100,000
Sep 23, 2025	Val Hoyle	D	House	Sale	$1,001 - $15,000
Sep 22, 2025	David Taylor	R	House	Sale	$1,001 - $15,000
Sep 22, 2025	David Taylor	R	House	Sale	$1,001 - $15,000
Sep 3, 2025	Jonathan Jackson	D	House	Sale	$1,001 - $15,000
Aug 28, 2025	Sheldon Whitehouse	D	Senate	Sale (Partial)	$15,001 - $50,000
Aug 13, 2025	Jonathan Jackson	D	House	Purchase	$1,001 - $15,000