LAM RESEARCH CORP

Ticker: LRCX CUSIP: 512807306 Class: Common Stock

MARTINGALE ASSET MANAGEMENT L P's Holding History (CIK: 0000936944)

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

Q4 2025

Shares 49,161 Value ($000) $8,415 Avg Close $155.36 Range $130.80 - $179.80

Q3 2025

Shares 10,005 Value ($000) $1,340 Avg Close $105.52 Range $90.61 - $133.99

Q2 2025

Shares 8,056 Value ($000) $784 Avg Close $78.86 Range $55.98 - $97.67

Q3 2024

Shares 247 Value ($000) $202 Avg Close $85.67 Range $70.58 - $111.29

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	49,161	$8,415	$155.36	$130.80 - $179.80
Q3 2025	10,005	$1,340	$105.52	$90.61 - $133.99
Q2 2025	8,056	$784	$78.86	$55.98 - $97.67
Q3 2024	247	$202	$85.67	$70.58 - $111.29