AMTECH SYS INC

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

OLD SECOND NATIONAL BANK OF AURORA's Holding History (CIK: 0000903783)

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

Q3 2019

Shares 7,313 Value ($000) $39 Avg Close $5.48 Range $4.79 - $6.25

Q2 2019

Shares 7,313 Value ($000) $40 Avg Close $6.10 Range $4.95 - $7.18

Q1 2019

Shares 3,526 Value ($000) $19 Avg Close $4.94 Range $4.35 - $5.45

Q4 2018

Shares 3,526 Value ($000) $16 Avg Close $4.88 Range $4.03 - $5.83

Q3 2018

Shares 3,526 Value ($000) $19 Avg Close $5.48 Range $4.56 - $6.23

Q2 2018

Shares 3,526 Value ($000) $21 Avg Close $7.80 Range $5.85 - $10.67

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2019	7,313	$39	$5.48	$4.79 - $6.25
Q2 2019	7,313	$40	$6.10	$4.95 - $7.18
Q1 2019	3,526	$19	$4.94	$4.35 - $5.45
Q4 2018	3,526	$16	$4.88	$4.03 - $5.83
Q3 2018	3,526	$19	$5.48	$4.56 - $6.23
Q2 2018	3,526	$21	$7.80	$5.85 - $10.67