QUANTUM CORP

Ticker: QMCO CUSIP: 747906600 Class: Stock

AlphaQuest LLC's Holding History (CIK: 0001883897)

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

Q4 2025

Shares 29,386 Value ($000) $190 Avg Close $8.97 Range $6.22 - $15.33

Q3 2025

Shares 35,536 Value ($000) $353 Avg Close $8.41 Range $6.51 - $12.83

Q2 2025

Shares 4,707 Value ($000) $47 Avg Close $11.05 Range $7.25 - $15.30

Q1 2025

Shares 9,653 Value ($000) $139 Avg Close $21.79 Range $10.11 - $60.88

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	29,386	$190	$8.97	$6.22 - $15.33
Q3 2025	35,536	$353	$8.41	$6.51 - $12.83
Q2 2025	4,707	$47	$11.05	$7.25 - $15.30
Q1 2025	9,653	$139	$21.79	$10.11 - $60.88