AMTECH SYS INC

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

GROUP ONE TRADING, L.P.'s Holding History (CIK: 0000932540)

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

Q4 2025
Shares 7,549 Value ($000) $95 Avg Close $9.01 Range $6.75 - $13.26
Q3 2025
Shares 2,024 Value ($000) $19 Avg Close $6.11 Range $4.30 - $10.25
Q1 2024
Shares 1,052 Value ($000) $6 Avg Close $4.51 Range $3.37 - $5.45
Q4 2023
Shares 2,052 Value ($000) $9 Avg Close $6.79 Range $3.59 - $8.12
Q3 2021
Shares 2,204 Value ($000) $25 Avg Close $10.24 Range $8.75 - $12.70
Q1 2021
Shares 669 Value ($000) $8 Avg Close $9.25 Range $6.25 - $13.20
Q3 2020
Shares 1,500 Value ($000) $7 Avg Close $5.15 Range $4.71 - $5.94
Q4 2019
Shares 300 Value ($000) $2 Avg Close $5.80 Range $4.75 - $7.21
Q3 2018
Shares 260 Value ($000) $1 Avg Close $5.48 Range $4.56 - $6.23
Q2 2018
Shares 1,090 Value ($000) $7 Avg Close $7.80 Range $5.85 - $10.67
Q1 2018
Shares 4,590 Value ($000) $34 Avg Close $9.00 Range $6.92 - $11.53
Q4 2017
Shares 300 Value ($000) $3 Avg Close $12.22 Range $9.31 - $15.45
Q3 2017
Shares 600 Value ($000) $7 Avg Close $10.06 Range $8.13 - $13.06
Q2 2013
Shares 519 Value ($000) $3 Avg Close $4.48 Range $3.21 - $7.93