QUANTUM CORP

Ticker: QMCO CUSIP: 747906600 Class: Stock

SBI Securities Co., Ltd.'s Holding History (CIK: 0001851815)

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

Q4 2025

Shares 2,425 Value ($000) $16 Avg Close $8.97 Range $6.22 - $15.33

Q3 2025

Shares 5,970 Value ($000) $59 Avg Close $8.41 Range $6.51 - $12.83

Q2 2025

Shares 5,636 Value ($000) $56 Avg Close $11.05 Range $7.25 - $15.30

Q1 2025

Shares 2,827 Value ($000) $41 Avg Close $21.79 Range $10.11 - $60.88

Q4 2024

Shares 3,598 Value ($000) $194 Avg Close $14.51 Range $2.88 - $90.64

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	2,425	$16	$8.97	$6.22 - $15.33
Q3 2025	5,970	$59	$8.41	$6.51 - $12.83
Q2 2025	5,636	$56	$11.05	$7.25 - $15.30
Q1 2025	2,827	$41	$21.79	$10.11 - $60.88
Q4 2024	3,598	$194	$14.51	$2.88 - $90.64