Photronics's three largest insider shareholders as of March 23, 2026 are Constantine S Macricostas (Director, 460.89K shares), George Macricostas (Ceo, 455.26K shares), Peter S Kirlin (Chief Executive Officer, 438.57K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Constantine S Macricostas | 460,895 | 0 | 07 Jan, 2026 | |
| George Macricostas | Ceo | 455,262 | 0 | 07 Jan, 2026 |
| Peter S Kirlin | Chief Executive Officer | 438,571 | 0 | 02 Mar, 2022 |
| Kang Jyh Lee | 410,850 | 0 | 20 Jan, 2026 | |
| Richelle E Burr | Evp, Cao, Gc Secretary | 269,354 | 0 | 22 May, 2024 |
| Eric Rivera | President, Cfo | 177,690 | 0 | 11 Feb, 2026 |
| Christopher J Progler | Evp, Chief Technology Officer | 165,591 | 0 | 16 Dec, 2025 |
| Hsueh-Chun Wang | Svp/Coo Ic Us/Eu Mnstrm Ops | 164,685 | 0 | 07 Jan, 2026 |
| John P Jordan | Evp, Cfo | 138,756 | 0 | 27 Feb, 2024 |
| Han Kyung Park | Svp Gm Of Fpd Ops | 75,500 | 0 | 20 Jan, 2026 |
| Daniel Jl Liao | 68,782 | 0 | 22 Jan, 2026 | |
| Mitchell G Tyson | 43,199 | 0 | 07 Jan, 2026 | |
| Rui Zhang | Vp, Cao Corporate Controller | 33,387 | 0 | 11 Feb, 2026 |
| Adam M Lewis | 31,070 | 0 | 07 Jan, 2026 | |
| Mary Paladino | 23,820 | 0 | 07 Jan, 2026 | |
| Todd Anthony Alesio | Svp, Cao | 17,946 | 0 | 11 Feb, 2026 |
| David A. Garcia | 11,470 | 0 | 07 Jan, 2026 | |
| Walter M Fiederowicz | 5,000 | 0 | 17 Apr, 2025 | |
| Michelle Almeida | 1,234 | 0 | 22 Jan, 2026 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 09 Feb, 2026 | Rui Zhang | COMMON STOCK | A | 1,467 | $0.00 | 33,387 | D | A |
| 09 Feb, 2026 | Todd Anthony Alesio | COMMON STOCK | A | 983 | $0.00 | 17,946 | D | A |
| 09 Feb, 2026 | Eric Rivera | COMMON STOCK | A | 22,641 | $0.00 | 177,690 | D | A |
| 20 Jan, 2026 | Daniel Jl Liao | COMMON STOCK | A | 1,234 | $0.00 | 68,782 | D | A |
| 20 Jan, 2026 | Michelle Almeida | COMMON STOCK | A | 1,234 | $0.00 | 1,234 | D | A |
| 13 Jan, 2026 | Han Kyung Park | COMMON STOCK | D | 7,500 | $33.70 | 81,750 | D | S |
| 16 Jan, 2026 | Kang Jyh Lee | COMMON STOCK | D | 10,000 | $34.51 | 410,850 | D | S |
| 16 Jan, 2026 | Han Kyung Park | COMMON STOCK | D | 6,250 | $34.89 | 75,500 | D | S |
| 15 Jan, 2026 | Kang Jyh Lee | COMMON STOCK | D | 10,000 | $34.13 | 415,850 | D | S |
| 13 Jan, 2026 | Kang Jyh Lee | COMMON STOCK | D | 10,000 | $34.42 | 425,850 | D | S |
| 12 Jan, 2026 | Kang Jyh Lee | COMMON STOCK | D | 10,000 | $33.05 | 435,850 | D | S |
| 07 Jan, 2026 | Kang Jyh Lee | COMMON STOCK | D | 10,000 | $34.83 | 445,850 | D | S |
| 03 Jan, 2026 | Constantine S Macricostas | COMMON STOCK | A | 1,272 | $0.00 | 460,895 | D | A |
| 03 Jan, 2026 | Mary Paladino | COMMON STOCK | A | 1,272 | $0.00 | 35,070 | D | A |
| 03 Jan, 2026 | Eric Rivera | COMMON STOCK | A | 40,407 | $0.00 | 155,049 | D | A |
| 03 Jan, 2026 | Han Kyung Park | COMMON STOCK | A | 23,945 | $0.00 | 113,195 | D | A |
| 03 Jan, 2026 | Hsueh-Chun Wang | COMMON STOCK | A | 28,435 | $0.00 | 164,685 | D | A |
| 03 Jan, 2026 | George Macricostas | COMMON STOCK | A | 177,432 | $0.00 | 455,262 | D | A |
| 03 Jan, 2026 | Mitchell G Tyson | COMMON STOCK | A | 1,272 | $0.00 | 48,199 | D | A |
| 03 Jan, 2026 | David A. Garcia | COMMON STOCK | A | 1,272 | $0.00 | 11,470 | D | A |