Photronics, Inc.
A maker of photomasks—the precision quartz "blueprints" used to print the microscopic circuits inside the chips and flat-panel displays that power smartphones, computers, and TVs. Founded in 1969 by Deno Macricostas, who started the company in a Connecticut garage after designing early photomask equipment for a prior employer. Today it runs fabrication plants across North America, Europe, and Asia.
Bought 539.9K · Sold 589.7K
Granted 606.3K · Sold 433.3K
Granted 872.6K · Sold 476.7K
Granted 1.52M · Bought 22.1K · Sold 3.42M
Granted 758.0K · Sold 474.3K
Granted 473.7K · Bought 2.3K · Sold 161.3K
Granted 286.5K · Sold 126.0K
Granted 144.0K · Sold 75.0K
Granted 614.1K · Sold 427.6K
Granted 283.4K · Bought 12.7K · Sold 208.1K
Granted 207.8K · Bought 8.0K · Sold 11.2K
Granted 147.9K · Sold 42.5K
Granted 125.0K
Granted 66.4K · Sold 51.1K
Granted 106.0K · Sold 16.0K
Granted 61.9K · Sold 76.3K
Granted 72.5K
Granted 37.0K
Granted 261.5K · Sold 233.6K
Granted 54.5K · Sold 19.8K
Granted 1.5K · Sold 6.3K
Granted 983
Granted 12.5K · Bought 2.6K
Granted 341.8K · Sold 367.1K
Granted 5.0K
Granted 20.0K · Sold 770
Granted 77.8K · Sold 54.0K
| Insider | Stake change | Holds now | Granted / vested | Bought | Sold |
|---|---|---|---|---|---|
| GMT Capital CorpFormer 10% Holder · 15 transactions | — | 5.36Mas of Apr 2011 | — | 539.9K | 589.7K |
| Macricostas GeorgeCEO · 96 transactions | — | 448.8K | 606.3K | — | 433.3K |
| Kirlin Peter SChief Executive Officer · 123 transactions | — | 438.6Kas of Feb 2022 | 872.6K | — | 476.7K |
| Macricostas Constantine SDirector · 426 transactions | — | 423.9K | 1.52M | 22.1K | 3.42M |
| Lee Kang JyhDirector · 73 transactions | — | 365.9K | 758.0K | — | 474.3K |
| Burr Richelle EEVP, CAO, GC & Secretary · 107 transactions | — | 269.4Kas of May 2024 | 473.7K | 2.3K | 161.3K |
| Fiorita Joseph A JrDirector · 42 transactions | — | 202.4Kas of Feb 2020 | 286.5K | — | 126.0K |
| Jeong Soo HongPresident and COO Asia · 14 transactions | — | 179.4Kas of Dec 2014 | 144.0K | — | 75.0K |
| Progler Christopher JEVP, Chief Technology Officer · 169 transactions | — | 165.6K | 614.1K | — | 427.6K |
| Smith Sean TFormer SVP & CFO · 70 transactions | — | 152.9Kas of Dec 2017 | 283.4K | 12.7K | 208.1K |
| Jordan John PEVP, CFO · 46 transactions | — | 141.1Kas of Feb 2024 | 207.8K | 8.0K | 11.2K |
| Rivera EricPresident, CFO · 19 transactions | — | 136.2K | 147.9K | — | 42.5K |
| Luttati Michael JChief Executive Officer, Director · 5 transactions | — | 128.4Kas of Jan 2008 | 125.0K | — | — |
| Wang Hsueh-ChunSVP/COO IC & US/EU Mnstrm Ops · 8 transactions | — | 113.6K | 66.4K | — | 51.1K |
| Hsia Liang ChooDirector · 12 transactions | — | 90.0Kas of Jan 2020 | 106.0K | — | 16.0K |
| Park Han KyungSVP & GM of FPD Ops · 9 transactions | — | 75.5K | 61.9K | — | 76.3K |
| Liao Daniel JLDirector · 8 transactions | — | 72.5K | 72.5K | — | — |
| Maris Willem DDirector · 5 transactions | — | 56.0Kas of Dec 2010 | 37.0K | — | — |
| Tyson Mitchell GDirector · 151 transactions | — | 36.9K | 261.5K | — | 233.6K |
| Lewis Adam MDirector · 7 transactions | — | 34.8K | 54.5K | — | 19.8K |
| Zhang RuiVP, CAO & Corporate Controller · 3 transactions | — | 27.1K | 1.5K | — | 6.3K |
| Alesio Todd AnthonySVP, CAO · 1 transaction | — | 17.0K | 983 | — | — |
| Garcia David A.Director · 4 transactions | — | 15.2K | 12.5K | 2.6K | — |
| Fiederowicz Walter MFormer Director · 102 transactions | — | 5.0Kas of Apr 2025 | 341.8K | — | 367.1K |
| Almeida MichelleDirector · 2 transactions | — | 5.0K | 5.0K | — | — |
| Lewis Edwin LSenior VP, Gen Counsel & Secty · 5 transactions | — | 4.6Kas of Nov 2007 | 20.0K | — | 770 |
| Paladino MaryDirector · 11 transactions | — | 1.3K | 77.8K | — | 54.0K |
Select a row to see that insider’s individual transactions. Sum of the holdings confirmed in the 12 months before this insider's last filing. A Form 4 reports a holding per line — held directly, or through a named trust, partnership or foundation, and in each share class separately — never a person’s total. Lines not restated in that time are left out and shown apart: an active filer restates what they still hold, so a line they did not restate is more often an entity since renamed, whose shares a successor line reports too. An amber marker means some were left out.
Net open-market activity over all recorded history: -6.68M shares. Grants, option exercises and tax withholding are excluded — they are compensation mechanics, not decisions to buy or sell.