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

• Donald Smith & Co owns 6.06M shares worth $40.46M
• Waddell & Reed Financial owns 5.47M shares worth $36.53M
• Paradigm Capital Management owns 2.84M shares worth $18.95M
• Munder Capital Management owns 2.35M shares worth $15.83M
• Signia Capital Management owns 2.06M shares worth $13.79M
• Vanguard owns 1.93M shares worth $12.91M
• Integrity Asset Management owns 1.85M shares worth $10.95M
• ALLIANCEBERNSTEIN owns 1.79M shares worth $11.94M
• LSV Asset Management owns 1.66M shares worth $11.09M
• Acadian Asset Management owns 1.43M shares worth $8.54M
• GMT Capital owns 1.36M shares worth $7.32M
• Dalton, Greiner, Hartman, Maher & Co owns 1.22M shares worth $7.41M
• NorthPointe Capital owns 1.13M shares worth $6.76M
• STATE STREET CORPORATION owns 1.09M shares worth $7.25M
• CalPERS owns 1.00M shares worth $6.69M
• American Century Companies owns 996831 shares worth $5.35M
• State of Wisconsin Investment Board owns 970241 shares worth $6.48M
• Batterymarch Financial Management owns 900652 shares worth $6.02M
• Royce & Associates owns 824000 shares worth $4.91M
• Allianz Global Investors of America owns 777600 shares worth $4.73M
• Punch & Associates Investment Management owns 678534 shares worth $3.64M
• Diker Management owns 643500 shares worth $3.91M
• Bridgeway Capital Management owns 632814 shares worth $4.21M
• AQR Capital Management owns 595337 shares worth $3.55M
• Ameriprise Financial owns 592136 shares worth $3.61M
• Teachers Advisors owns 586690 shares worth $3.57M
• Schroder Investment Management owns 579363 shares worth $3.87M

• First Trust Advisors sold on Dec. 31, 2011
• Damian Sousa sold on June 30, 2011
• OppenheimerFunds sold on June 30, 2011
• Oxford Asset Management sold on June 30, 2011
• Renaissance Technologies sold on March 31, 2011
• FMR sold on Dec. 31, 2010
• Inves sold on Dec. 31, 2010
• D. E. Shaw & Co sold on Dec. 31, 2010

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