AMTECH SYS INC

Ticker: ASYS CUSIP: 032332504 Class: COM PAR $0.01N

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

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

Q4 2025

Shares 130 Value ($000) $2 Avg Close $9.01 Range $6.75 - $13.26

Q3 2025

Shares 151 Value ($000) $1 Avg Close $6.11 Range $4.30 - $10.25

Q2 2025

Shares 241 Value ($000) $1 Avg Close $3.91 Range $3.20 - $4.95

Q1 2025

Shares 231 Value ($000) $1 Avg Close $5.16 Range $4.74 - $6.41

Q4 2024

Shares 210 Value ($000) $1 Avg Close $5.67 Range $4.95 - $6.14

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	130	$2	$9.01	$6.75 - $13.26
Q3 2025	151	$1	$6.11	$4.30 - $10.25
Q2 2025	241	$1	$3.91	$3.20 - $4.95
Q1 2025	231	$1	$5.16	$4.74 - $6.41
Q4 2024	210	$1	$5.67	$4.95 - $6.14