LAM RESEARCH CORP

Ticker: LRCX CUSIP: 512807306 Class: Common Stock

WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC's Holding History (CIK: 0001644956)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 110,668 Value ($000) $18,944 Avg Close $155.36 Range $130.80 - $179.80

Q3 2025

Shares 1,843,616 Value ($000) $246,860 Avg Close $105.52 Range $90.61 - $133.99

Q2 2025

Shares 1,908,368 Value ($000) $185,761 Avg Close $78.86 Range $55.98 - $97.67

Q1 2025

Shares 3,323,880 Value ($000) $241,646 Avg Close $78.11 Range $70.01 - $90.89

Q4 2024

Shares 3,410,320 Value ($000) $246,327 Avg Close $74.98 Range $68.04 - $85.51

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	110,668	$18,944	$155.36	$130.80 - $179.80
Q3 2025	1,843,616	$246,860	$105.52	$90.61 - $133.99
Q2 2025	1,908,368	$185,761	$78.86	$55.98 - $97.67
Q1 2025	3,323,880	$241,646	$78.11	$70.01 - $90.89
Q4 2024	3,410,320	$246,327	$74.98	$68.04 - $85.51