Portolan Capital Management - AMTECH SYS INC ownership

AMTECH SYS INC's ticker is ASYS and the CUSIP is 032332504. A total of 67 filers reported holding AMTECH SYS INC in Q1 2021. The put-call ratio across all filers is 0.33 and the average weighting 0.1%.

Quarter-by-quarter ownership
Portolan Capital Management ownership history of AMTECH SYS INC
ValueSharesWeighting
Q1 2021$4,233,000358,1490.33%
Other shareholders
AMTECH SYS INC shareholders Q1 2021
NameSharesValueWeighting ↓
Pacific Ridge Capital Partners, LLC 938,182$11,089,0002.10%
Roubaix Capital, LLC 98,885$1,169,0000.79%
Cannell Capital 257,172$3,040,0000.68%
Ibex Investors LLC 105,896$1,252,0000.43%
Portolan Capital Management 358,149$4,233,0000.33%
EAM Investors, LLC 142,121$1,680,0000.25%
WHITE PINE CAPITAL LLC 60,451$715,0000.23%
ESSEX INVESTMENT MANAGEMENT CO LLC 147,204$1,740,0000.21%
IRONWOOD INVESTMENT MANAGEMENT LLC 30,849$365,0000.19%
WealthTrust Axiom LLC 47,381$560,0000.19%
View complete list of AMTECH SYS INC shareholders