| SC 13G/A | 2014-02-07 | WADDELL & REED FINANCIAL INC | PHOTRONICS INC | 7,233,326 | 11.7% | EDGAR |
| SC 13G/A | 2014-01-30 | BlackRock Inc. | PHOTRONICS INC | 3,681,211 | 6.0% | EDGAR |
| SC 13G/A | 2013-12-10 | WADDELL & REED FINANCIAL INC | PHOTRONICS INC | 6,861,859 | 11.2% | EDGAR |
| SC 13G | 2013-05-22 | BARROW HANLEY MEWHINNEY & STRAUSS LLC | PHOTRONICS INC | 3,252,680 | 5.8% | EDGAR |
| SC 13G | 2013-02-13 | DONALD SMITH & CO., INC. | PHOTRONICS INC | 6,062,609 | 10.0% | EDGAR |
| SC 13G/A | 2013-02-11 | DIMENSIONAL FUND ADVISORS LP | PHOTRONICS INC | 4,679,872 | 7.7% | EDGAR |
| SC 13G/A | 2013-02-11 | BlackRock Inc. | PHOTRONICS INC | 3,454,532 | 5.7% | EDGAR |
| SC 13G/A | 2013-02-07 | WADDELL & REED FINANCIAL INC | PHOTRONICS INC | 5,578,462 | 9.2% | EDGAR |
| SC 13G | 2013-01-09 | LETKO, BROSSEAU & ASSOCIATES INC | PHOTRONICS INC | 2,835,538 | 4.7% | EDGAR |
| SC 13G | 2013-01-02 | STEELHEAD PARTNERS LLC | PHOTRONICS INC | 4,115,909 | 6.4% | EDGAR |
| SC 13G/A | 2012-08-16 | GMT CAPITAL CORP | PHOTRONICS INC | 587,600 | 1.0% | EDGAR |
| SC 13G/A | 2012-06-13 | GMT CAPITAL CORP | PHOTRONICS INC | 738,800 | 1.2% | EDGAR |
| SC 13G/A | 2012-05-24 | DONALD SMITH & CO., INC. | PHOTRONICS INC | 6,077,736 | 10.1% | EDGAR |
| SC 13G/A | 2012-03-22 | GMT CAPITAL CORP | PHOTRONICS INC | 872,100 | 1.4% | EDGAR |
| SC 13G/A | 2012-02-21 | GMT CAPITAL CORP | PHOTRONICS INC | 1,016,300 | 1.7% | EDGAR |
| SC 13G/A | 2012-02-14 | DIMENSIONAL FUND ADVISORS LP | PHOTRONICS INC | 4,418,152 | 7.3% | EDGAR |
| SC 13G/A | 2012-02-14 | CITADEL ADVISORS LLC | PHOTRONICS INC | - | 3.8% | EDGAR |
| SC 13G/A | 2012-02-14 | WADDELL & REED FINANCIAL INC | PHOTRONICS INC | 1,979,400 | 3.3% | EDGAR |
| SC 13G | 2012-02-13 | DONALD SMITH & CO., INC. | PHOTRONICS INC | 5,340,834 | 8.9% | EDGAR |
| SC 13G | 2012-02-09 | BlackRock Inc. | PHOTRONICS INC | 3,170,442 | 5.3% | EDGAR |