AMTECH SYS INC

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

PDT Partners, LLC's Holding History (CIK: 0001564702)

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

Q1 2018

Shares 74,001 Value ($000) $542 Avg Close $9.00 Range $6.92 - $11.53

Q4 2017

Shares 107,200 Value ($000) $1,080 Avg Close $12.22 Range $9.31 - $15.45

Q3 2017

Shares 59,664 Value ($000) $715 Avg Close $10.06 Range $8.13 - $13.06

Q2 2017

Shares 26,600 Value ($000) $225 Avg Close $7.31 Range $5.17 - $9.19

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2018	74,001	$542	$9.00	$6.92 - $11.53
Q4 2017	107,200	$1,080	$12.22	$9.31 - $15.45
Q3 2017	59,664	$715	$10.06	$8.13 - $13.06
Q2 2017	26,600	$225	$7.31	$5.17 - $9.19