X0609 4 2026-04-14 0000810136 PHOTRONICS INC PLAB 0002040274 Wang Hsueh-Chun false 15 SECOR ROAD BROOKFIELD CT 06804 true SVP/COO IC & US/EU Mnstrm Ops false COMMON STOCK 2026-04-14 4 S 0 19250 45.3 D 113560 D These shares were sold in multiple transactions at prices ranging from $45.22 - $45.45. The price reported is a weighted average. The reporting person undertakes to provide, upon request by the SEC staff, the issuer, or any security holder of the issuer, full information regarding the number of shares sold at each separate price within the range. /s/Brandon DeSocio, attorney-in-fact for Wang Hsueh-Chun 2026-04-16