DOLBY LABORATORIES INC

Ticker: DLB CUSIP: 25659T107 Class: Common Stock

Costello Asset Management, INC's Holding History (CIK: 0001760145)

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

Q4 2025

Shares 200 Value ($000) $13 Avg Close $66.55 Range $63.33 - $72.23

Q3 2025

Shares 200 Value ($000) $14 Avg Close $72.58 Range $68.17 - $75.82

Q2 2025

Shares 200 Value ($000) $15 Avg Close $73.57 Range $66.91 - $80.04

Q1 2025

Shares 200 Value ($000) $16 Avg Close $79.86 Range $73.65 - $87.57

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	200	$13	$66.55	$63.33 - $72.23
Q3 2025	200	$14	$72.58	$68.17 - $75.82
Q2 2025	200	$15	$73.57	$66.91 - $80.04
Q1 2025	200	$16	$79.86	$73.65 - $87.57