AMTECH SYS INC

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

OBERWEIS ASSET MANAGEMENT INC/'s Holding History (CIK: 0000937886)

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

Q3 2023
Shares 118,900 Value ($000) $906 Avg Close $9.09 Range $7.30 - $11.98
Q2 2023
Shares 118,900 Value ($000) $1,137 Avg Close $9.08 Range $8.44 - $10.44
Q1 2023
Shares 118,900 Value ($000) $1,134 Avg Close $9.39 Range $7.81 - $11.44
Q4 2022
Shares 113,900 Value ($000) $866 Avg Close $9.06 Range $7.50 - $11.73
Q3 2022
Shares 113,900 Value ($000) $968 Avg Close $9.21 Range $6.66 - $13.45
Q2 2022
Shares 108,900 Value ($000) $795 Avg Close $8.63 Range $6.99 - $10.26
Q1 2022
Shares 110,700 Value ($000) $1,114 Avg Close $9.55 Range $7.81 - $11.10
Q4 2021
Shares 102,500 Value ($000) $1,013 Avg Close $11.54 Range $8.38 - $15.78
Q3 2021
Shares 67,500 Value ($000) $772 Avg Close $10.24 Range $8.75 - $12.70