QUANTUM CORP

Ticker: QMCO CUSIP: 747906600 Class: Stock

Tower Research Capital LLC (TRC)'s Holding History (CIK: 0001533421)

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

Q4 2025

Shares 582 Value ($000) $4 Avg Close $8.97 Range $6.22 - $15.33

Q3 2025

Shares 427 Value ($000) $4 Avg Close $8.41 Range $6.51 - $12.83

Q2 2025

Shares 722 Value ($000) $7 Avg Close $11.05 Range $7.25 - $15.30

Q1 2025

Shares 2,294 Value ($000) $33 Avg Close $21.79 Range $10.11 - $60.88

Q4 2024

Shares 144 Value ($000) $8 Avg Close $14.51 Range $2.88 - $90.64

Q3 2024

Shares 2,264 Value ($000) $8 Avg Close $5.65 Range $2.22 - $10.00

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	582	$4	$8.97	$6.22 - $15.33
Q3 2025	427	$4	$8.41	$6.51 - $12.83
Q2 2025	722	$7	$11.05	$7.25 - $15.30
Q1 2025	2,294	$33	$21.79	$10.11 - $60.88
Q4 2024	144	$8	$14.51	$2.88 - $90.64
Q3 2024	2,264	$8	$5.65	$2.22 - $10.00