Nasdaq · CIK 0000810136
PLAB PHOTRONICS INC
Insider trading from SEC Form 4. Last filing 11 d ago. Close $29.62 on Oct 9, 2026, +46% from the 52-week low and -46% from the high.
PHOTRONICS INC (PLAB) has 75 SEC Form 4 filings on file from 16 insiders, the latest filed on Oct 2, 2026. In the last 90 days insiders made 0 open-market buys worth $0 and 4 open-market sells worth $1.1M, net -$1.1M.
50 open-market trades have been scored at PLAB. The newest: Kang Jyh Lee (CHIEF EXECUTIVE OFFICER) sold $308k of stock on Sep 29, 2026, filed Oct 1, 2026, scored 37 (weak). The largest of the 50 shown: Christopher J Progler (EVP, Chief Technology Officer) sold $1.6M on Dec 19, 2024, scored 50 (moderate). 2 insiders sold within 14 days of each other around Sep 29, 2026.
PLAB closed at $29.62 on Oct 9, 2026, 46% above its 52-week low and 46% below its 52-week high.
25 Form 144 notices of planned sales are on file, the latest filed Dec 22, 2025.
Last 90 days
Price and insider trades, last year
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
Open-market buys and sells at PHOTRONICS INC, scored.
| Score | Insider | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 37Weak | Kang Jyh Lee CHIEF EXECUTIVE OFFICER sell | $308k 10,000 shares | -3% | +53% from low-43% from high | |
| 42Moderate | Han Kyung Park SVP & GM of FPD Ops sell | $289k 9,500 shares | -13% | +50% from low-45% from high | |
| 35Weak | Kang Jyh Lee CHIEF EXECUTIVE OFFICER sell | $221k 7,500 shares | -2% | +47% from low-46% from high | |
| 37Weak | Kang Jyh Lee CHIEF EXECUTIVE OFFICER sell | $297k 10,000 shares | -3% | +50% from low-45% from high | |
| 12Weak | Kang Jyh Lee CHIEF EXECUTIVE OFFICER sell | $204k 5,000 shares | -1% | +138% from low-9% from high | |
| 31Weak | Kang Jyh Lee CHIEF EXECUTIVE OFFICER sell | $390k 10,000 shares | -3% | +135% from low-10% from high | |
| 30Weak | Kang Jyh Lee CHIEF EXECUTIVE OFFICER sell | $358k 10,000 shares | -2% | +121% from low-15% from high | |
| 45Moderate | Kang Jyh Lee CHIEF EXECUTIVE OFFICER sell | $345k 10,000 shares | -2% | +107% from low-13% from high | |
| 52Moderate | Han Kyung Park SVP & GM of FPD Ops sell | $471k 13,750 shares | -15% | +100% from low-16% from high | |
| 45Moderate | Kang Jyh Lee CHIEF EXECUTIVE OFFICER sell | $341k 10,000 shares | -2% | +105% from low-14% from high | |
| 45Moderate | Kang Jyh Lee CHIEF EXECUTIVE OFFICER sell | $344k 10,000 shares | -2% | +100% from low-16% from high | |
| 45Moderate | Kang Jyh Lee CHIEF EXECUTIVE OFFICER sell | $331k 10,000 shares | -2% | +102% from low-15% from high | |
| 45Moderate | Kang Jyh Lee CHIEF EXECUTIVE OFFICER sell | $348k 10,000 shares | -2% | +109% from low-12% from high | |
| 51Moderate | Kang Jyh Lee CHIEF EXECUTIVE OFFICER sell | $693k 20,000 shares | -4% | +100% from low-16% from high | |
| 47Moderate | Mitchell G Tyson director sell | $176k 5,000 shares | -10% | +111% from low-11% from high | |
| 56Moderate | Mary Paladino director sell | $395k 11,250 shares | -32% | +111% from low-11% from high | |
| 44Moderate | Kang Jyh Lee CHIEF EXECUTIVE OFFICER sell | $293k 8,750 shares | -2% | +100% from low-16% from high | |
| 44Moderate | Kang Jyh Lee CHIEF EXECUTIVE OFFICER sell | $300k 8,750 shares | -2% | +106% from low-13% from high | |
| 40Moderate | Kang Jyh Lee CHIEF EXECUTIVE OFFICER sell | $1.5M 40,000 shares | -8% | +117% from low-8% from high | |
| 53Moderate | Han Kyung Park SVP & GM of FPD Ops sell | $522k 13,750 shares | -13% | +117% from low-8% from high | |
| 42Moderate | Mitchell G Tyson director sell | $181k 5,000 shares | -10% | +117% from low-8% from high | |
| 59Moderate | Christopher J Progler EVP, Chief Technology Officer sell | $895k 25,000 shares | -13% | +117% from low-8% from high | |
| 23Weak | Christopher J Progler EVP, Chief Technology Officer sell | $225k 10,000 shares | -5% | +34% from low-20% from high | |
| 41Moderate | Mitchell G Tyson director sell | $125k 5,000 shares | -9% | +39% from low-17% from high | |
| 43Moderate | Kang Jyh Lee CHIEF EXECUTIVE OFFICER sell | $253k 10,000 shares | -2% | +50% from low-11% from high | |
| 75Notable | Mary Paladino director sell | $1.0M 42,750 shares | -56% | +47% from low-12% from high | |
| 50Moderate | Han Kyung Park SVP & GM of FPD Ops sell | $330k 15,000 shares | -13% | +31% from low-22% from high | |
| 22Weak | Christopher J Progler EVP, Chief Technology Officer sell | $219k 10,000 shares | -5% | +32% from low-22% from high | |
| 42Moderate | Kang Jyh Lee CHIEF EXECUTIVE OFFICER sell | $203k 8,750 shares | -2% | +36% from low-19% from high | |
| 7Weak | Christopher J Progler EVP, Chief Technology Officer sell | $211k 10,000 shares | -5% | +26% from low-25% from high | |
| 42Moderate | Mitchell G Tyson director sell | $300k 15,000 shares | -21% | +19% from low-29% from high | |
| 69Notable | Constantine S Macricostas director sell | $596k 29,500 shares | -100% | +21% from low-28% from high | |
| 36Weak | David A. Garcia director buy | $50k 2,650 shares | +35% | +12% from low-33% from high | |
| 17Weak | Kang Jyh Lee CHIEF EXECUTIVE OFFICER sell | $90k 4,882 shares | -1% | +9% from low-35% from high | |
| 26Weak | Kang Jyh Lee CHIEF EXECUTIVE OFFICER sell | $517k 28,118 shares | -5% | +9% from low-35% from high | |
| 57Moderate | Kang Jyh Lee CHIEF EXECUTIVE OFFICER sell | $432k 20,000 shares | -4% | +8% from low-24% from high | |
| 22Weak | Christopher J Progler EVP, Chief Technology Officer sell | $216k 10,000 shares | -4% | +9% from low-23% from high | |
| 40Moderate | Walter M Fiederowicz other sell | $224k 12,548 shares | -72% | +6% from low-36% from high | |
| 29Weak | Walter M Fiederowicz other sell | $132k 7,000 shares | -29% | +15% from low-31% from high | |
| 31Weak | Walter M Fiederowicz other sell | $96k 5,000 shares | -17% | 0% from low-35% from high | |
| 52Moderate | Walter M Fiederowicz director sell | $216k 10,000 shares | -25% | +8% from low-23% from high | |
| 48Moderate | Walter M Fiederowicz director sell | $241k 10,000 shares | -24% | - | |
| 48Moderate | Walter M Fiederowicz director sell | $240k 10,000 shares | -17% | - | |
| 56Moderate | Kang Jyh Lee CHIEF EXECUTIVE OFFICER sell | $420k 17,500 shares | -3% | - | |
| 43Moderate | Han Kyung Park SVP & GM of FPD Ops sell | $268k 11,250 shares | -10% | - | |
| 58Moderate | Adam M Lewis director sell | $476k 19,750 shares | -47% | - | |
| 52Moderate | Kang Jyh Lee CHIEF EXECUTIVE OFFICER sell | $213k 8,750 shares | -2% | - | |
| 43Moderate | Kang Jyh Lee CHIEF EXECUTIVE OFFICER sell | $505k 20,000 shares | -4% | - | |
| 50Moderate | Christopher J Progler EVP, Chief Technology Officer sell | $1.6M 63,000 shares | -26% | - | |
| 53Moderate | Mitchell G Tyson director sell | $501k 20,000 shares | -23% | - |
Planned sales
Form 144 notices filed before a sale of restricted or control stock, newest first. The sale itself usually reaches a Form 4 within days. All planned sales
| Filed | Seller | Shares | Value | Sale date | Past 3 months |
|---|---|---|---|---|---|
| Dec 22, 2025 | Lee Kang Jyh Officer, Director | 8,750 0.01% of outstanding | $300k | Dec 22, 2025 | $1.8M |
| Dec 15, 2025 | Lee Kang Jyh Officer, Director | 20,000 0.03% of outstanding | $729k | Dec 15, 2025 | $1.0M |
| Dec 12, 2025 | Lee Kang Jyh Officer, Director | 20,000 0.03% of outstanding | $771k | Dec 12, 2025 | $253k |
| Dec 12, 2025 | Park Han Kyung Officer | 13,750 0.02% of outstanding | $522k | Dec 12, 2025 | none |
| Dec 12, 2025 | TYSON MITCHELL G Director | 5,000 0.01% of outstanding | $181k | Dec 12, 2025 | $125k |
| Dec 12, 2025 | Progler Christopher J Officer | 25,000 0.04% of outstanding | $895k | Dec 12, 2025 | $225k |
| Dec 1, 2025 | Progler Christopher J Officer | 10,000 0.02% of outstanding | $227k | Dec 1, 2025 | $219k |
| Oct 7, 2025 | TYSON MITCHELL G Director | 5,000 0.01% of outstanding | $125k | Oct 7, 2025 | $300k |
| Oct 6, 2025 | Lee Kang Jyh Officer, Director | 10,000 0.02% of outstanding | $253k | Oct 6, 2025 | $203k |
| Oct 2, 2025 | Paladino Mary Director | 42,750 0.07% of outstanding | $1.0M | Oct 2, 2025 | none |
| Sep 3, 2025 | Park Han Kyung Officer | 15,000 0.02% of outstanding | $330k | Sep 3, 2025 | none |
| Sep 2, 2025 | Progler Christopher J Officer | 10,000 0.02% of outstanding | $219k | Sep 2, 2025 | $211k |
| Aug 29, 2025 | Lee Kang Jyh Officer, Director | 8,750 0.01% of outstanding | $203k | Aug 29, 2025 | $607k |
| Jul 28, 2025 | Progler Christopher J Officer | 10,000 0.02% of outstanding | $211k | Jul 28, 2025 | none |
| Jul 10, 2025 | TYSON MITCHELL G Director | 15,000 0.02% of outstanding | $300k | Jul 10, 2025 | none |
| Jul 3, 2025 | MACRICOSTAS CONSTANTINE S Director | 29,500 0.05% of outstanding | $600k | Jul 2, 2025 | none |
| Jun 20, 2025 | Lee Kang Jyh Officer, Director | 4,882 0.01% of outstanding | $90k | Jun 20, 2025 | $733k |
| Jun 18, 2025 | Lee Kang Jyh Officer, Director | 28,118 0.05% of outstanding | $517k | Jun 18, 2025 | $432k |
| Apr 17, 2025 | WALTER FIEDEROWICZ Director | 5,000 0.01% of outstanding | $89k | Apr 17, 2025 | $444k |
| Apr 15, 2025 | FIEDEROWICZ WALTER M Director | 7,548 0.01% of outstanding | $135k | Apr 15, 2025 | $444k |
| Apr 9, 2025 | WALTER FIEDEROWICZ Director | 7,000 0.01% of outstanding | $132k | Apr 9, 2025 | $312k |
| Apr 3, 2025 | WALTER FIEDEROWICZ Director | 5,000 0.01% of outstanding | $96k | Apr 3, 2025 | $216k |
| Apr 1, 2025 | MACRICOSTAS CONSTANTINE S Director | 29,500 0.05% of outstanding | $600k | Apr 1, 2025 | none |
| Mar 26, 2025 | Lee Kang Jyh Officer, Director | 10,000 0.02% of outstanding | $216k | Mar 26, 2025 | $1.6M |
| Mar 25, 2025 | WALTER FIEDEROWICZ Director | 10,000 0.02% of outstanding | $216k | Mar 25, 2025 | $241k |
Transactions
The newest 50 of 115 rows filed, every code.
| Date | Insider | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Oct 1, 2026 | Rui Zhang VP, CAO & Corporate Controller | FTax withholding COMMON STOCK | -392 | $30.83 | $12k | 26,687 | 11 d ago |
| Oct 1, 2026 | Eric Rivera President, CFO | FTax withholding COMMON STOCK | -2,897 | $30.83 | $89k | 133,276 | 11 d ago |
| Sep 29, 2026 | Kang Jyh Lee CHIEF EXECUTIVE OFFICER | SOpen-market sale COMMON STOCK | -10,000 | $30.75 | $308k | 337,350 | 12 d ago |
| Sep 25, 2026 | Han Kyung Park SVP & GM of FPD Ops | SOpen-market sale COMMON STOCK | -9,500 | $30.37 | $289k | 66,000 | 14 d ago |
| Sep 24, 2026 | Kang Jyh Lee CHIEF EXECUTIVE OFFICER | SOpen-market sale COMMON STOCK | -7,500 | $29.50 | $221k | 347,350 | 15 d ago |
| Sep 22, 2026 | Kang Jyh Lee CHIEF EXECUTIVE OFFICER | SOpen-market sale COMMON STOCK | -10,000 | $29.70 | $297k | 354,850 | 19 d ago |
| Apr 13, 2026 | Michelle Almeida director | AGrant or award COMMON STOCK | +3,722 | $0.00 | $0 | 4,956 | Apr 15, 2026 |
| Apr 13, 2026 | David A. Garcia director | AGrant or award COMMON STOCK | +3,722 | $0.00 | $0 | 15,192 | Apr 15, 2026 |
| Mar 26, 2026 | Kang Jyh Lee CHIEF EXECUTIVE OFFICER | MOption exercise COMMON STOCK | +5,000 | $10.75 | $54k | 390,850 | Mar 30, 2026 |
| Mar 26, 2026 | Kang Jyh Lee CHIEF EXECUTIVE OFFICER | SOpen-market sale COMMON STOCK | -5,000 | $40.80 | $204k | 385,850 | Mar 30, 2026 |
| Mar 26, 2026 | Kang Jyh Lee CHIEF EXECUTIVE OFFICER | MOption exercise PHOTRONICS STOCK OPTIONSderivative | -5,000 | $0.00 | $0 | 5,000 | Mar 30, 2026 |
| Mar 23, 2026 | Kang Jyh Lee CHIEF EXECUTIVE OFFICER | SOpen-market sale COMMON STOCK | -10,000 | $39.00 | $390k | 385,850 | Mar 25, 2026 |
| Mar 19, 2026 | Kang Jyh Lee CHIEF EXECUTIVE OFFICER | SOpen-market sale COMMON STOCK | -10,000 | $35.80 | $358k | 400,850 | Mar 24, 2026 |
| Feb 9, 2026 | Rui Zhang VP, CAO & Corporate Controller | AGrant or award COMMON STOCK | +1,467 | $0.00 | $0 | 33,387 | Feb 11, 2026 |
| Feb 9, 2026 | Todd Anthony Alesio SVP, CAO | AGrant or award COMMON STOCK | +983 | $0.00 | $0 | 17,946 | Feb 11, 2026 |
| Feb 9, 2026 | Eric Rivera President, CFO | AGrant or award COMMON STOCK | +22,641 | $0.00 | $0 | 177,690 | Feb 11, 2026 |
| Jan 20, 2026 | Daniel JL Liao director | AGrant or award COMMON STOCK | +1,234 | $0.00 | $0 | 68,782 | Jan 22, 2026 |
| Jan 20, 2026 | Michelle Almeida director | AGrant or award COMMON STOCK | +1,234 | $0.00 | $0 | 1,234 | Jan 22, 2026 |
| Jan 16, 2026 | Kang Jyh Lee CHIEF EXECUTIVE OFFICER | SOpen-market sale COMMON STOCK | -10,000 | $34.51 | $345k | 410,850 | Jan 20, 2026 |
| Jan 13, 2026 | Han Kyung Park SVP & GM of FPD Ops | SOpen-market sale COMMON STOCK | -7,500 | $33.70 | $253k | 81,750 | Jan 20, 2026 |
| Jan 16, 2026 | Han Kyung Park SVP & GM of FPD Ops | SOpen-market sale COMMON STOCK | -6,250 | $34.89 | $218k | 75,500 | Jan 20, 2026 |
| Jan 15, 2026 | Kang Jyh Lee CHIEF EXECUTIVE OFFICER | SOpen-market sale COMMON STOCK | -10,000 | $34.13 | $341k | 415,850 | Jan 16, 2026 |
| Jan 13, 2026 | Kang Jyh Lee CHIEF EXECUTIVE OFFICER | SOpen-market sale COMMON STOCK | -10,000 | $34.42 | $344k | 425,850 | Jan 15, 2026 |
| Jan 12, 2026 | Kang Jyh Lee CHIEF EXECUTIVE OFFICER | SOpen-market sale COMMON STOCK | -10,000 | $33.05 | $331k | 435,850 | Jan 14, 2026 |
| Jan 7, 2026 | Kang Jyh Lee CHIEF EXECUTIVE OFFICER | SOpen-market sale COMMON STOCK | -10,000 | $34.83 | $348k | 445,850 | Jan 9, 2026 |
| Jan 3, 2026 | George Macricostas CEO | AGrant or award COMMON STOCK | +177,432 | $0.00 | $0 | 455,262 | Jan 7, 2026 |
| Jan 3, 2026 | Constantine S Macricostas director | AGrant or award COMMON STOCK | +1,272 | $0.00 | $0 | 460,895 | Jan 7, 2026 |
| Jan 3, 2026 | Eric Rivera EVP, CFO | AGrant or award COMMON STOCK | +40,407 | $0.00 | $0 | 155,049 | Jan 7, 2026 |
| Jan 3, 2026 | Hsueh-Chun Wang SVP/COO IC & US/EU Mnstrm Ops | AGrant or award COMMON STOCK | +28,435 | $0.00 | $0 | 164,685 | Jan 7, 2026 |
| Jan 3, 2026 | Han Kyung Park SVP & GM of FPD Ops | AGrant or award COMMON STOCK | +23,945 | $0.00 | $0 | 113,195 | Jan 7, 2026 |
| Jan 3, 2026 | Mitchell G Tyson director | AGrant or award COMMON STOCK | +1,272 | $0.00 | $0 | 48,199 | Jan 7, 2026 |
| Jan 3, 2026 | Mary Paladino director | AGrant or award COMMON STOCK | +1,272 | $0.00 | $0 | 35,070 | Jan 7, 2026 |
| Jan 5, 2026 | Kang Jyh Lee CHIEF EXECUTIVE OFFICER | SOpen-market sale COMMON STOCK | -10,000 | $33.90 | $339k | 465,850 | Jan 7, 2026 |
| Jan 3, 2026 | David A. Garcia director | AGrant or award COMMON STOCK | +1,272 | $0.00 | $0 | 11,470 | Jan 7, 2026 |
| Jan 3, 2026 | Adam M Lewis director | AGrant or award COMMON STOCK | +1,272 | $0.00 | $0 | 31,070 | Jan 7, 2026 |
| Jan 6, 2026 | Kang Jyh Lee CHIEF EXECUTIVE OFFICER | SOpen-market sale COMMON STOCK | -10,000 | $35.41 | $354k | 455,850 | Jan 7, 2026 |
| Jan 6, 2026 | Mitchell G Tyson director | SOpen-market sale COMMON STOCK | -5,000 | $35.21 | $176k | 43,199 | Jan 7, 2026 |
| Jan 6, 2026 | Mary Paladino director | SOpen-market sale COMMON STOCK | -11,250 | $35.11 | $395k | 23,820 | Jan 7, 2026 |
| Jan 2, 2026 | Kang Jyh Lee CHIEF EXECUTIVE OFFICER | SOpen-market sale COMMON STOCK | -8,750 | $33.54 | $293k | 475,850 | Jan 6, 2026 |
| Oct 14, 2025 | Eric Rivera EVP, CFO | AGrant or award COMMON STOCK | +882 | $19.83 | $17k | 120,697 | Jan 6, 2026 |
| Jan 2, 2026 | Eric Rivera EVP, CFO | FTax withholding COMMON STOCK | -686 | $33.41 | $23k | 120,011 | Jan 6, 2026 |
| Jan 2, 2026 | Eric Rivera EVP, CFO | FTax withholding COMMON STOCK | -1,372 | $33.41 | $46k | 118,639 | Jan 6, 2026 |
| Jan 2, 2026 | Eric Rivera EVP, CFO | FTax withholding COMMON STOCK | -1,019 | $33.41 | $34k | 117,620 | Jan 6, 2026 |
| Jan 2, 2026 | Eric Rivera EVP, CFO | FTax withholding COMMON STOCK | -2,978 | $33.41 | $99k | 114,642 | Jan 6, 2026 |
| Dec 22, 2025 | Kang Jyh Lee CHIEF EXECUTIVE OFFICER | SOpen-market sale COMMON STOCK | -8,750 | $34.31 | $300k | 484,600 | Dec 23, 2025 |
| Dec 12, 2025 | Christopher J Progler EVP, Chief Technology Officer | SOpen-market sale Common Stock | -25,000 | $35.78 | $895k | 165,591 | Dec 16, 2025 |
| Dec 12, 2025 | Kang Jyh Lee CHIEF EXECUTIVE OFFICER | SOpen-market sale COMMON STOCK | -20,000 | $38.53 | $771k | 493,350 | Dec 16, 2025 |
| Dec 12, 2025 | Han Kyung Park SVP & GM of FPD Ops | SOpen-market sale COMMON STOCK | -13,750 | $37.99 | $522k | 89,250 | Dec 16, 2025 |
| Dec 12, 2025 | Mitchell G Tyson director | SOpen-market sale COMMON STOCK | -5,000 | $36.17 | $181k | 46,927 | Dec 16, 2025 |
| Dec 15, 2025 | Kang Jyh Lee CHIEF EXECUTIVE OFFICER | MOption exercise COMMON STOCK | +20,000 | $11.35 | $227k | 513,350 | Dec 16, 2025 |
Insiders
Everyone who has filed a Form 4 here.
- Todd Anthony AlesioSVP, CAO
- Michelle Almeidadirector
- Walter M Fiederowiczdirector, other
- David A. Garciadirector
- Adam M Lewisdirector
- Kang Jyh LeeCHIEF EXECUTIVE OFFICER
- Daniel JL Liaodirector
- Constantine S Macricostasdirector
- George MacricostasCEO
- Mary Paladinodirector
- Han Kyung ParkSVP & GM of FPD Ops
- Christopher J ProglerEVP, Chief Technology Officer
- Eric RiveraPresident, CFO
- Mitchell G Tysondirector
- Hsueh-Chun WangSVP/COO IC & US/EU Mnstrm Ops
- Rui ZhangVP, CAO & Corporate Controller
Questions about PLAB
Answered from the filings on this page, as of the latest one.
Are insiders buying PLAB?
As of Oct 2, 2026, SEC Form 4 filings show 0 open-market buys worth $0 by 0 insiders and 4 open-market sells worth $1.1M by 2 insiders at PHOTRONICS INC in the last 90 days, net -$1.1M. Only purchases (code P) and sales (code S) count; grants, option exercises and tax withholding do not.
Who was the last insider to trade PLAB on the open market?
Kang Jyh Lee (CHIEF EXECUTIVE OFFICER) sold $308k of PLAB on Sep 29, 2026 and filed the Form 4 on Oct 1, 2026. InsiderTell scored 37 (weak), with 2 insiders on the same side within 14 days.
How many insiders file Form 4 at PHOTRONICS INC?
16 people have filed a Form 4 at PHOTRONICS INC, among them Todd Anthony Alesio (SVP, CAO), Michelle Almeida (director), Walter M Fiederowicz (director). Officers, directors and holders of more than 10% of a share class must report their trades within two business days.
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.