AMTECH SYS INC

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

D. E. Shaw & Co., Inc.'s Holding History (CIK: 0001009207)

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

Q2 2021

Shares 24,958 Value ($000) $241 Avg Close $10.26 Range $8.35 - $14.24

Q3 2019

Shares 16,287 Value ($000) $86 Avg Close $5.48 Range $4.79 - $6.25

Q2 2019

Shares 16,287 Value ($000) $90 Avg Close $6.10 Range $4.95 - $7.18

Q1 2019

Shares 16,187 Value ($000) $86 Avg Close $4.94 Range $4.35 - $5.45

Q4 2018

Shares 16,187 Value ($000) $73 Avg Close $4.88 Range $4.03 - $5.83

Q3 2018

Shares 16,187 Value ($000) $86 Avg Close $5.48 Range $4.56 - $6.23

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2021	24,958	$241	$10.26	$8.35 - $14.24
Q3 2019	16,287	$86	$5.48	$4.79 - $6.25
Q2 2019	16,287	$90	$6.10	$4.95 - $7.18
Q1 2019	16,187	$86	$4.94	$4.35 - $5.45
Q4 2018	16,187	$73	$4.88	$4.03 - $5.83
Q3 2018	16,187	$86	$5.48	$4.56 - $6.23