X0306 4 2018-02-21 0000810136 PHOTRONICS INC PLAB 0000900574 MACRICOSTAS CONSTANTINE S 15 SECOR ROAD P.O. BOX 5226 BROOKFIELD CT 06804 true Common Stock 2018-02-21 4 M 0 50000 6.32 A 542575 D Common Stock 2018-02-21 4 M 0 60000 5.46 A 602575 D Common Stock 2018-02-21 4 S 0 110000 7.65 D 492575 D Stock Options (Right to Buy) 6.32 2018-02-21 4 M 0 50000 0 D 2015-12-09 2021-12-09 Common Stock 50000 0 D Stock Options (Right to Buy) 5.46 2018-02-21 4 M 0 60000 0 D 2016-12-07 2022-12-07 Common Stock 60000 0 D This transaction was executed in multiple trades. The price reported above reflects the weighted average sale price. The reporting person undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and the prices at which the transaction was effected. /s/ Richelle E. Burr, attorney-in-fact for Constantine S. Macricostas 2018-02-23