Is ASYS a good stock to own? Find out who bought Amtech Systems, who sold Amtech Systems (ASYS) stock, and who holds a large position in Amtech Systems.

• Hollow Brook Associates owns 369501 shares worth $3.08M
• Royce & Associates owns 271900 shares worth $981559
• Vanguard owns 238169 shares worth $850263
• Diversified Investment Strategies owns 186265 shares worth $678004
• ARONSON JOHNSON ORTIZ owns 183500 shares worth $689960
• STATE STREET CORPORATION owns 146379 shares worth $1.22M
• ZPR Investment Management owns 141555 shares worth $532246
• CalPERS owns 134930 shares worth $487097
• PanAgora Asset Management owns 132516 shares worth $1.13M
• Batterymarch Financial Management owns 124230 shares worth $1.03M
• Inves owns 121675 shares worth $1.01M
• Guggenheim Capital, LLC Managers owns 118746 shares worth $982029
• Walthausen & Co owns 115504 shares worth $420434
• Renaissance Technologies owns 114996 shares worth $418585
• Jacobs Levy Equity Management owns 108100 shares worth $900473
• Ardsley Advisory Partners owns 100000 shares worth $376000
• HighTower Advisors owns 100000 shares worth $8000
• Brandywine Global Investment Management owns 99500 shares worth $375115
• Bridgeway Capital Management owns 96900 shares worth $312018
• Springbok Capital Management owns 88977 shares worth $741178
• Janney Montgomery Scott owns 87650 shares worth $319046
• Ancora Advisors owns 83360 shares worth $302596
• AQR Capital Management owns 75300 shares worth $283128
• United Services Automobile Association owns 67700 shares worth $563941
• ALGERT COLDIRON INVESTORS owns 63849 shares worth $531862
• Two Sigma Investments owns 57981 shares worth $190177
• GRT Capital Partners owns 57500 shares worth $189750
• Technical Financial Services owns 51777 shares worth $441140
• GSA Capital Partners owns 46323 shares worth $149160
• Wellington Management Company owns 45488 shares worth $378915
• Oxford Asset Management owns 45026 shares worth $375066

• Teachers Advisors sold on Sept. 30, 2011
• Perimeter Capital Partners sold on June 30, 2011
• Perritt Capital Management sold on June 30, 2011
• Craig A. Drill sold on June 30, 2011
• Oberweis Asset Management sold on June 30, 2011
• NUMERIC INVESTORS sold on June 30, 2011
• SAM Sustainable Asset Management sold on June 30, 2011
• Credit Suisse AG sold on June 30, 2011
• MCKINLEY CAPITAL MANAGEMENT sold on June 30, 2011
• American Century Companies sold on June 30, 2011
• OppenheimerFunds sold on June 30, 2011
• PEAK6 Investments sold on June 30, 2011
• DnB NOR Asset Management AS sold on March 31, 2011
• Allianz Global Investors of America sold on March 31, 2011
• Savitr Capital sold on March 31, 2011
• Hillsdale Investment Management sold on March 31, 2011
• Driehaus Capital Management sold on Dec. 31, 2010
• Austin W. Marxe and David M. Greenhouse sold on Dec. 31, 2010
• HIGHBRIDGE CAPITAL MANAGEMENT sold on Dec. 31, 2010
• MindShare Capital Management sold on Dec. 31, 2010
• Keane Capital Management sold on Dec. 31, 2010
• Heather K. Mellem, Esq. sold on Dec. 31, 2010

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