AMTECH SYS INC

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

Portolan Capital Management, LLC's Holding History (CIK: 0001350290)

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

Q1 2021

Shares 358,149 Value ($000) $4,233 Avg Close $9.25 Range $6.25 - $13.20

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2021	358,149	$4,233	$9.25	$6.25 - $13.20