LAM RESEARCH CORP

Ticker: LRCX CUSIP: 512807306 Class: Common Stock

Robeco Institutional Asset Management B.V.'s Holding History (CIK: 0001418773)

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

Q4 2025

Shares 2,161,975 Value ($000) $370,087 Avg Close $155.36 Range $130.80 - $179.80

Q3 2025

Shares 1,934,252 Value ($000) $258,996 Avg Close $105.52 Range $90.61 - $133.99

Q2 2025

Shares 1,854,296 Value ($000) $180,497 Avg Close $78.86 Range $55.98 - $97.67

Q1 2025

Shares 952,065 Value ($000) $69,215 Avg Close $78.11 Range $70.01 - $90.89

Q4 2024

Shares 943,240 Value ($000) $68,130 Avg Close $74.98 Range $68.04 - $85.51

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	2,161,975	$370,087	$155.36	$130.80 - $179.80
Q3 2025	1,934,252	$258,996	$105.52	$90.61 - $133.99
Q2 2025	1,854,296	$180,497	$78.86	$55.98 - $97.67
Q1 2025	952,065	$69,215	$78.11	$70.01 - $90.89
Q4 2024	943,240	$68,130	$74.98	$68.04 - $85.51