🕵️ Photronics Inc ($PLAB)
SEC insider & ownership activity, last 12 months · CIK 810136 · every row links its SEC filing
Over the last 12 months insiders sold $25.2M with no open-market buying against it. Lee Kang Jyh sold $8.3M through a program of 23 sale notices averaging $354K (Aug–Apr). No red-flag 8-Ks in the window.
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Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
0 buyers, $0 (0 lots) · 10 sellers, $25.2M (52 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Lee Kang Jyh | 0 | – | 24 | $8.3M | Apr 16, 2026 |
| George Macricostas | 0 | – | 3 | $5.2M | Apr 8, 2026 |
| Macrcostas Family Foudation, Inc. | 0 | – | 1 | $2.3M | Apr 14, 2026 |
| Wang Hsueh-Chun | 0 | – | 6 | $2.2M | Apr 14, 2026 |
| Rivera Eric | 0 | – | 3 | $1.9M | Apr 13, 2026 |
| Paladino Mary | 0 | – | 2 | $1.4M | Jan 6, 2026 |
| Christopher J. Progler | 0 | – | 3 | $1.3M | Dec 12, 2025 |
| Park Han Kyung | 0 | – | 4 | $1.3M | Jan 16, 2026 |
| Mitchell G. Tyson | 0 | – | 4 | $905K | Apr 1, 2026 |
| Zhang Rui | 0 | – | 2 | $289K | Apr 17, 2026 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| Blackrock, Inc. | 15.0% | 13G | Apr 29, 2025 | filing ↗ | |
| Dimensional Fund Advisors LP | 6.2% | 13G | Jul 14, 2026 | filing ↗ |
Planned insider sales (Form 144)
| Seller | Planned | Approx. sale date | |
|---|---|---|---|
| Paladino Mary | $1.1M | Apr 17, 2026 | filing ↗ |
| Zhang Rui | $213K | Apr 17, 2026 | filing ↗ |
| Lee Kang Jyh | $458K | Apr 16, 2026 | filing ↗ |
| Lee Kang Jyh | $461K | Apr 16, 2026 | filing ↗ |
| Lee Kang Jyh | $451K | Apr 15, 2026 | filing ↗ |
| Macrcostas Family Foudation, Inc. | $2.3M | Apr 14, 2026 | filing ↗ |
| Wang Hsueh-Chun | $872K | Apr 14, 2026 | filing ↗ |
| Lee Kang Jyh | $225K | Apr 13, 2026 | filing ↗ |
| Rivera Eric | $45K | Apr 13, 2026 | filing ↗ |
| Wang Hsueh-Chun | $525K | Apr 9, 2026 | filing ↗ |
| Lee Kang Jyh | $220K | Apr 9, 2026 | filing ↗ |
| Rivera Eric | $1.8M | Apr 9, 2026 | filing ↗ |
| George Macricostas 2013 TR DTD 12/24/13 | $4.8M | Apr 8, 2026 | filing ↗ |
| Wang Hsueh-Chun | $427K | Apr 8, 2026 | filing ↗ |
| Zhang Rui | $76K | Apr 8, 2026 | filing ↗ |
| Lee Kang Jyh | $216K | Apr 8, 2026 | filing ↗ |
| George Macricostas | $240K | Apr 8, 2026 | filing ↗ |
| Lee Kang Jyh | $203K | Apr 6, 2026 | filing ↗ |
| Mitchell G. Tyson | $423K | Apr 1, 2026 | filing ↗ |
| Wang Hsueh-Chun | $421K | Apr 1, 2026 | filing ↗ |
| Lee Kang Jyh | $210K | Apr 1, 2026 | filing ↗ |
| Lee Kang Jyh | $204K | Mar 26, 2026 | filing ↗ |
| George Macricostas | $280K | Mar 26, 2026 | filing ↗ |
| Lee Kang Jyh | $390K | Mar 23, 2026 | filing ↗ |
| Lee Kang Jyh | $358K | Mar 19, 2026 | filing ↗ |
| Lee Kang Jyh | $345K | Jan 16, 2026 | filing ↗ |
| Park Han Kyung | $218K | Jan 16, 2026 | filing ↗ |
| Lee Kang Jyh | $341K | Jan 15, 2026 | filing ↗ |
| Christopher J. Progler | $2.4M | Jan 13, 2026 | filing ↗ |
| Lee Kang Jyh | $344K | Jan 13, 2026 | filing ↗ |
| Park Han Kyung | $253K | Jan 13, 2026 | filing ↗ |
| Lee Kang Jyh | $330K | Jan 12, 2026 | filing ↗ |
| Lee Kang Jyh | $348K | Jan 7, 2026 | filing ↗ |
| Mitchell G. Tyson | $176K | Jan 6, 2026 | filing ↗ |
| Paladino Mary | $395K | Jan 6, 2026 | filing ↗ |
| Lee Kang Jyh | $354K | Jan 6, 2026 | filing ↗ |
| Lee Kang Jyh | $339K | Jan 5, 2026 | filing ↗ |
| Lee Kang Jyh | $293K | Jan 2, 2026 | filing ↗ |
| Lee Kang Jyh | $300K | Dec 22, 2025 | filing ↗ |
| Lee Kang Jyh | $729K | Dec 15, 2025 | filing ↗ |
| Christopher J. Progler | $895K | Dec 12, 2025 | filing ↗ |
| Mitchell G. Tyson | $181K | Dec 12, 2025 | filing ↗ |
| Lee Kang Jyh | $771K | Dec 12, 2025 | filing ↗ |
| Park Han Kyung | $522K | Dec 12, 2025 | filing ↗ |
| Christopher J. Progler | $226K | Dec 1, 2025 | filing ↗ |
| Mitchell G. Tyson | $125K | Oct 7, 2025 | filing ↗ |
| Lee Kang Jyh | $253K | Oct 6, 2025 | filing ↗ |
| Paladino Mary | $1.0M | Oct 2, 2025 | filing ↗ |
| Park Han Kyung | $330K | Sep 3, 2025 | filing ↗ |
| Christopher J. Progler | $219K | Sep 2, 2025 | filing ↗ |
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Earnings (2.02) | May 28, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 28, 2026 | filing ↗ |
| Shareholder vote (5.07) | Apr 8, 2026 | filing ↗ |
| Officer/director changes (5.02) | Jan 12, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jan 12, 2026 | filing ↗ |
| Officer/director changes (5.02) | Jan 1, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jan 1, 2026 | filing ↗ |
| Officer/director changes (5.02) | Dec 29, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Dec 29, 2025 | filing ↗ |
| Earnings (2.02) | Dec 10, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Dec 10, 2025 | filing ↗ |
| Earnings (2.02) | Aug 27, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Aug 27, 2025 | filing ↗ |
| Earnings (2.02) | Feb 25, 2025 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Feb 25, 2025 | filing ↗ |