LAM RESEARCH CORP

Ticker: LRCX CUSIP: 512807306 Class: Common Stock

GREAT LAKES ADVISORS, LLC's Holding History (CIK: 0001078013)

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

Q4 2025

Shares 123,636 Value ($000) $21,164 Avg Close $155.36 Range $130.80 - $179.80

Q3 2025

Shares 123,167 Value ($000) $16,492 Avg Close $105.52 Range $90.61 - $133.99

Q2 2025

Shares 123,088 Value ($000) $11,981 Avg Close $78.86 Range $55.98 - $97.67

Q1 2025

Shares 129,408 Value ($000) $9,408 Avg Close $78.11 Range $70.01 - $90.89

Q4 2024

Shares 138,284 Value ($000) $9,988 Avg Close $74.98 Range $68.04 - $85.51

Q3 2024

Shares 15,033 Value ($000) $12,268 Avg Close $85.67 Range $70.58 - $111.29

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	123,636	$21,164	$155.36	$130.80 - $179.80
Q3 2025	123,167	$16,492	$105.52	$90.61 - $133.99
Q2 2025	123,088	$11,981	$78.86	$55.98 - $97.67
Q1 2025	129,408	$9,408	$78.11	$70.01 - $90.89
Q4 2024	138,284	$9,988	$74.98	$68.04 - $85.51
Q3 2024	15,033	$12,268	$85.67	$70.58 - $111.29