WELLINGTON MANAGEMENT GROUP LLP - AMTECH SYS INC ownership

AMTECH SYS INC's ticker is ASYS and the CUSIP is 032332504. A total of 33 filers reported holding AMTECH SYS INC in Q2 2013. The put-call ratio across all filers is 0.51 and the average weighting 0.1%.

Quarter-by-quarter ownership
WELLINGTON MANAGEMENT GROUP LLP ownership history of AMTECH SYS INC
ValueSharesWeighting
Q1 2015$1,524,000
+728.3%
136,307
+440.3%
0.00%
Q3 2013$184,000
+15.0%
25,2300.0%0.00%
Q2 2013$160,00025,2300.00%
Other shareholders
AMTECH SYS INC shareholders Q2 2013
NameSharesValueWeighting ↓
HARBERT FUND ADVISORS, INC. 818,501$3,986,0004.54%
Pacific Ridge Capital Partners, LLC 1,041,884$5,074,0001.39%
Alambic Investment Management, L.P. 52,658$256,0000.64%
22NW, LP 127,743$622,0000.34%
IRONWOOD INVESTMENT MANAGEMENT LLC 31,537$154,0000.12%
WealthTrust Axiom LLC 55,203$268,0000.12%
Ancora Advisors LLC 243,632$1,186,0000.05%
ROYCE & ASSOCIATES LP 624,306$3,040,0000.03%
Brandywine Global Investment Management, LLC 492,057$2,397,0000.02%
BARINGS LLC 88,808$386,0000.01%
View complete list of AMTECH SYS INC shareholders