DOLBY LABORATORIES INC

Ticker: DLB CUSIP: 25659T107 Class: Common Stock

AlphaQuest LLC's Holding History (CIK: 0001883897)

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

Q4 2025

Shares 41,059 Value ($000) $2,637 Avg Close $66.55 Range $63.33 - $72.23

Q3 2025

Shares 10,860 Value ($000) $786 Avg Close $72.58 Range $68.17 - $75.82

Q2 2025

Shares 10,249 Value ($000) $761 Avg Close $73.57 Range $66.91 - $80.04

Q1 2025

Shares 11,667 Value ($000) $937 Avg Close $79.86 Range $73.65 - $87.57

Q4 2024

Shares 6,148 Value ($000) $480 Avg Close $74.21 Range $68.55 - $80.18

Q3 2024

Shares 2,913 Value ($000) $223 Avg Close $72.23 Range $64.27 - $79.27

Q2 2024

Shares 12,286 Value ($000) $973 Avg Close $77.78 Range $74.69 - $82.32

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	41,059	$2,637	$66.55	$63.33 - $72.23
Q3 2025	10,860	$786	$72.58	$68.17 - $75.82
Q2 2025	10,249	$761	$73.57	$66.91 - $80.04
Q1 2025	11,667	$937	$79.86	$73.65 - $87.57
Q4 2024	6,148	$480	$74.21	$68.55 - $80.18
Q3 2024	2,913	$223	$72.23	$64.27 - $79.27
Q2 2024	12,286	$973	$77.78	$74.69 - $82.32