HEARTLAND ADVISORS INC

Position in LRCX — Lam Research Corp

CIK 937394 MILWAUKEE, WI

Position in LRCX

as of Mar 31, 2026 · filed May 6, 2026 Compact

Position Value

$1,861,405

-$3,744,740 QoQ

Shares Held

8,712

-73.4% QoQ

Ownership

0.001%

of shares outstanding

% of Portfolio

0.10%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Jun 2025

4 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Technology · as of Mar 31, 2026

HEARTLAND ADVISORS INC holds $28,829,368 across 4 Semiconductor Equipment & Materials names. LRCX ranks #4 (6.5% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	PLAB	Photronics Inc	370,675	$14,978,976
2	ICHR	Ichor Holdings, Ltd.	200,000	$9,322,000
3	AMAT	Applied Materials Inc /De	7,803	$2,666,987
4	LRCX	Lam Research Corp This page	8,712	$1,861,405

4 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$1,861,405	8,712	-73.4%	Shares	Defined	2026-05-06
2025-12-31	$5,606,145	32,750	-45.3%	Shares	Defined	2026-02-11
2025-09-30	$8,021,815	59,909	-14.2%	Shares	Defined	2025-11-07
2025-06-30	$6,794,624	69,803	—	Shares	Defined	2025-08-12
No filing history on record for this holder in this stock.