Form4.ai tracks every SEC insider trade in real time. See every PLAB insider filing with a free account — no card.
See every PLAB insider filing — free account, no card.
Free accountPHOTRONICS INC (PLAB) has 6 SEC Form 4 insider filings on record in the last 90 days. No insider purchases were filed — 4 sales totalling $1.1M. Most recent filing: Oct. 2, 2026.
Open-market value, last 90 days
Form 4 filings by type, last 90 days
| Date | Insider | Trade | Value | Price since buy |
|---|---|---|---|---|
| Oct 2, 2026 SEC filing | Rivera Eric President, CFO | Tax withholding | $89,315 | — |
| Oct 2, 2026 SEC filing | ZHANG RUI VP, CAO & Corporate Controller | Tax withholding | $12,085 | — |
| Oct 1, 2026 SEC filing | Lee Kang Jyh Director | Sold | $307,500 | — |
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Form 4 is the filing company officers, directors and 10% shareholders must submit to the SEC within two business days of trading their own company's stock. Open-market purchases generally carry more signal than sales, which are often scheduled in advance. More on how this works.