Photronics, Inc. (NASDAQ: PLAB) Shares Plunge 36%, Erasing $1.1 Billion in Market Value, Securities Class Action Filed – HBSS

Hagens Berman announced it is investigating potential securities law violations by Photronics regarding statements made about its high-end IC photomask business. The investigation covers the period between December 10, 2025, and May 27, 2026, preceding a 36% drop in share price. Investors who suffered losses have until September 4, 2026, to seek appointment as lead plaintiff in the class action lawsuit.

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