MONOLITHIC PWR SYS INC

Ticker: MPWR CUSIP: 609839105 Class: COM

FIRST AMERICAN TRUST, FSB's Holding History (CIK: 0000036066)

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

Q4 2025

Shares 6,383 Value ($000) $5,785 Avg Close $960.73 Range $831.77 - $1121.48

Q3 2025

Shares 6,334 Value ($000) $5,831 Avg Close $808.07 Range $684.50 - $934.81

Q2 2025

Shares 6,337 Value ($000) $4,635 Avg Close $633.58 Range $436.42 - $750.80

Q1 2025

Shares 6,162 Value ($000) $3,574 Avg Close $624.99 Range $550.94 - $718.03

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	6,383	$5,785	$960.73	$831.77 - $1121.48
Q3 2025	6,334	$5,831	$808.07	$684.50 - $934.81
Q2 2025	6,337	$4,635	$633.58	$436.42 - $750.80
Q1 2025	6,162	$3,574	$624.99	$550.94 - $718.03