LAM RESEARCH CORP

Ticker: LRCX CUSIP: 512807306 Class: Common Stock

SECURITY NATIONAL BANK OF SO DAK's Holding History (CIK: 0001105909)

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

Q4 2025

Shares 10,385 Value ($000) $1,778 Avg Close $155.36 Range $130.80 - $179.80

Q3 2025

Shares 10,465 Value ($000) $1,401 Avg Close $105.52 Range $90.61 - $133.99

Q2 2025

Shares 10,335 Value ($000) $1,006 Avg Close $78.86 Range $55.98 - $97.67

Q1 2025

Shares 9,940 Value ($000) $723 Avg Close $78.11 Range $70.01 - $90.89

Q4 2024

Shares 6,610 Value ($000) $477 Avg Close $74.98 Range $68.04 - $85.51

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	10,385	$1,778	$155.36	$130.80 - $179.80
Q3 2025	10,465	$1,401	$105.52	$90.61 - $133.99
Q2 2025	10,335	$1,006	$78.86	$55.98 - $97.67
Q1 2025	9,940	$723	$78.11	$70.01 - $90.89
Q4 2024	6,610	$477	$74.98	$68.04 - $85.51