Skip to content

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

Net insider value
-$1.1M
more sold than bought
Buys
0
$0 by 0 insiders
Sells
4
$1.1M by 2 insiders
Insiders on file
16
with a Form 4 at this company

Price and insider trades, last year

PLABOct 9, 2026 · close 29.62

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.

ScoreInsiderValueHoldingsPrice contextFiled
37WeakKang Jyh Lee
CHIEF EXECUTIVE OFFICER
sell
$308k
10,000 shares
-3%+53% from low-43% from high
42ModerateHan Kyung Park
SVP & GM of FPD Ops
sell
$289k
9,500 shares
-13%+50% from low-45% from high
35WeakKang Jyh Lee
CHIEF EXECUTIVE OFFICER
sell
$221k
7,500 shares
-2%+47% from low-46% from high
37WeakKang Jyh Lee
CHIEF EXECUTIVE OFFICER
sell
$297k
10,000 shares
-3%+50% from low-45% from high
12WeakKang Jyh Lee
CHIEF EXECUTIVE OFFICER
sell
$204k
5,000 shares
-1%+138% from low-9% from high
31WeakKang Jyh Lee
CHIEF EXECUTIVE OFFICER
sell
$390k
10,000 shares
-3%+135% from low-10% from high
30WeakKang Jyh Lee
CHIEF EXECUTIVE OFFICER
sell
$358k
10,000 shares
-2%+121% from low-15% from high
45ModerateKang Jyh Lee
CHIEF EXECUTIVE OFFICER
sell
$345k
10,000 shares
-2%+107% from low-13% from high
52ModerateHan Kyung Park
SVP & GM of FPD Ops
sell
$471k
13,750 shares
-15%+100% from low-16% from high
45ModerateKang Jyh Lee
CHIEF EXECUTIVE OFFICER
sell
$341k
10,000 shares
-2%+105% from low-14% from high
45ModerateKang Jyh Lee
CHIEF EXECUTIVE OFFICER
sell
$344k
10,000 shares
-2%+100% from low-16% from high
45ModerateKang Jyh Lee
CHIEF EXECUTIVE OFFICER
sell
$331k
10,000 shares
-2%+102% from low-15% from high
45ModerateKang Jyh Lee
CHIEF EXECUTIVE OFFICER
sell
$348k
10,000 shares
-2%+109% from low-12% from high
51ModerateKang Jyh Lee
CHIEF EXECUTIVE OFFICER
sell
$693k
20,000 shares
-4%+100% from low-16% from high
47ModerateMitchell G Tyson
director
sell
$176k
5,000 shares
-10%+111% from low-11% from high
56ModerateMary Paladino
director
sell
$395k
11,250 shares
-32%+111% from low-11% from high
44ModerateKang Jyh Lee
CHIEF EXECUTIVE OFFICER
sell
$293k
8,750 shares
-2%+100% from low-16% from high
44ModerateKang Jyh Lee
CHIEF EXECUTIVE OFFICER
sell
$300k
8,750 shares
-2%+106% from low-13% from high
40ModerateKang Jyh Lee
CHIEF EXECUTIVE OFFICER
sell
$1.5M
40,000 shares
-8%+117% from low-8% from high
53ModerateHan Kyung Park
SVP & GM of FPD Ops
sell
$522k
13,750 shares
-13%+117% from low-8% from high
42ModerateMitchell G Tyson
director
sell
$181k
5,000 shares
-10%+117% from low-8% from high
59ModerateChristopher J Progler
EVP, Chief Technology Officer
sell
$895k
25,000 shares
-13%+117% from low-8% from high
23WeakChristopher J Progler
EVP, Chief Technology Officer
sell
$225k
10,000 shares
-5%+34% from low-20% from high
41ModerateMitchell G Tyson
director
sell
$125k
5,000 shares
-9%+39% from low-17% from high
43ModerateKang Jyh Lee
CHIEF EXECUTIVE OFFICER
sell
$253k
10,000 shares
-2%+50% from low-11% from high
75NotableMary Paladino
director
sell
$1.0M
42,750 shares
-56%+47% from low-12% from high
50ModerateHan Kyung Park
SVP & GM of FPD Ops
sell
$330k
15,000 shares
-13%+31% from low-22% from high
22WeakChristopher J Progler
EVP, Chief Technology Officer
sell
$219k
10,000 shares
-5%+32% from low-22% from high
42ModerateKang Jyh Lee
CHIEF EXECUTIVE OFFICER
sell
$203k
8,750 shares
-2%+36% from low-19% from high
7WeakChristopher J Progler
EVP, Chief Technology Officer
sell
$211k
10,000 shares
-5%+26% from low-25% from high
42ModerateMitchell G Tyson
director
sell
$300k
15,000 shares
-21%+19% from low-29% from high
69NotableConstantine S Macricostas
director
sell
$596k
29,500 shares
-100%+21% from low-28% from high
36WeakDavid A. Garcia
director
buy
$50k
2,650 shares
+35%+12% from low-33% from high
17WeakKang Jyh Lee
CHIEF EXECUTIVE OFFICER
sell
$90k
4,882 shares
-1%+9% from low-35% from high
26WeakKang Jyh Lee
CHIEF EXECUTIVE OFFICER
sell
$517k
28,118 shares
-5%+9% from low-35% from high
57ModerateKang Jyh Lee
CHIEF EXECUTIVE OFFICER
sell
$432k
20,000 shares
-4%+8% from low-24% from high
22WeakChristopher J Progler
EVP, Chief Technology Officer
sell
$216k
10,000 shares
-4%+9% from low-23% from high
40ModerateWalter M Fiederowicz
other
sell
$224k
12,548 shares
-72%+6% from low-36% from high
29WeakWalter M Fiederowicz
other
sell
$132k
7,000 shares
-29%+15% from low-31% from high
31WeakWalter M Fiederowicz
other
sell
$96k
5,000 shares
-17%0% from low-35% from high
52ModerateWalter M Fiederowicz
director
sell
$216k
10,000 shares
-25%+8% from low-23% from high
48ModerateWalter M Fiederowicz
director
sell
$241k
10,000 shares
-24%-
48ModerateWalter M Fiederowicz
director
sell
$240k
10,000 shares
-17%-
56ModerateKang Jyh Lee
CHIEF EXECUTIVE OFFICER
sell
$420k
17,500 shares
-3%-
43ModerateHan Kyung Park
SVP & GM of FPD Ops
sell
$268k
11,250 shares
-10%-
58ModerateAdam M Lewis
director
sell
$476k
19,750 shares
-47%-
52ModerateKang Jyh Lee
CHIEF EXECUTIVE OFFICER
sell
$213k
8,750 shares
-2%-
43ModerateKang Jyh Lee
CHIEF EXECUTIVE OFFICER
sell
$505k
20,000 shares
-4%-
50ModerateChristopher J Progler
EVP, Chief Technology Officer
sell
$1.6M
63,000 shares
-26%-
53ModerateMitchell 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

FiledSellerSharesValueSale datePast 3 months
Dec 22, 2025 Lee Kang Jyh
Officer, Director
8,750
0.01% of outstanding
$300kDec 22, 2025$1.8M
Dec 15, 2025 Lee Kang Jyh
Officer, Director
20,000
0.03% of outstanding
$729kDec 15, 2025$1.0M
Dec 12, 2025 Lee Kang Jyh
Officer, Director
20,000
0.03% of outstanding
$771kDec 12, 2025$253k
Dec 12, 2025 Park Han Kyung
Officer
13,750
0.02% of outstanding
$522kDec 12, 2025none
Dec 12, 2025 TYSON MITCHELL G
Director
5,000
0.01% of outstanding
$181kDec 12, 2025$125k
Dec 12, 2025 Progler Christopher J
Officer
25,000
0.04% of outstanding
$895kDec 12, 2025$225k
Dec 1, 2025 Progler Christopher J
Officer
10,000
0.02% of outstanding
$227kDec 1, 2025$219k
Oct 7, 2025 TYSON MITCHELL G
Director
5,000
0.01% of outstanding
$125kOct 7, 2025$300k
Oct 6, 2025 Lee Kang Jyh
Officer, Director
10,000
0.02% of outstanding
$253kOct 6, 2025$203k
Oct 2, 2025 Paladino Mary
Director
42,750
0.07% of outstanding
$1.0MOct 2, 2025none
Sep 3, 2025 Park Han Kyung
Officer
15,000
0.02% of outstanding
$330kSep 3, 2025none
Sep 2, 2025 Progler Christopher J
Officer
10,000
0.02% of outstanding
$219kSep 2, 2025$211k
Aug 29, 2025 Lee Kang Jyh
Officer, Director
8,750
0.01% of outstanding
$203kAug 29, 2025$607k
Jul 28, 2025 Progler Christopher J
Officer
10,000
0.02% of outstanding
$211kJul 28, 2025none
Jul 10, 2025 TYSON MITCHELL G
Director
15,000
0.02% of outstanding
$300kJul 10, 2025none
Jul 3, 2025 MACRICOSTAS CONSTANTINE S
Director
29,500
0.05% of outstanding
$600kJul 2, 2025none
Jun 20, 2025 Lee Kang Jyh
Officer, Director
4,882
0.01% of outstanding
$90kJun 20, 2025$733k
Jun 18, 2025 Lee Kang Jyh
Officer, Director
28,118
0.05% of outstanding
$517kJun 18, 2025$432k
Apr 17, 2025 WALTER FIEDEROWICZ
Director
5,000
0.01% of outstanding
$89kApr 17, 2025$444k
Apr 15, 2025 FIEDEROWICZ WALTER M
Director
7,548
0.01% of outstanding
$135kApr 15, 2025$444k
Apr 9, 2025 WALTER FIEDEROWICZ
Director
7,000
0.01% of outstanding
$132kApr 9, 2025$312k
Apr 3, 2025 WALTER FIEDEROWICZ
Director
5,000
0.01% of outstanding
$96kApr 3, 2025$216k
Apr 1, 2025 MACRICOSTAS CONSTANTINE S
Director
29,500
0.05% of outstanding
$600kApr 1, 2025none
Mar 26, 2025 Lee Kang Jyh
Officer, Director
10,000
0.02% of outstanding
$216kMar 26, 2025$1.6M
Mar 25, 2025 WALTER FIEDEROWICZ
Director
10,000
0.02% of outstanding
$216kMar 25, 2025$241k

Transactions

The newest 50 of 115 rows filed, every code.

DateInsiderTransactionSharesPriceValueHoldings afterFiled
Oct 1, 2026Rui Zhang
VP, CAO & Corporate Controller
FTax withholding
COMMON STOCK
-392$30.83$12k26,68711 d ago
Oct 1, 2026Eric Rivera
President, CFO
FTax withholding
COMMON STOCK
-2,897$30.83$89k133,27611 d ago
Sep 29, 2026Kang Jyh Lee
CHIEF EXECUTIVE OFFICER
SOpen-market sale
COMMON STOCK
-10,000$30.75$308k337,35012 d ago
Sep 25, 2026Han Kyung Park
SVP & GM of FPD Ops
SOpen-market sale
COMMON STOCK
-9,500$30.37$289k66,00014 d ago
Sep 24, 2026Kang Jyh Lee
CHIEF EXECUTIVE OFFICER
SOpen-market sale
COMMON STOCK
-7,500$29.50$221k347,35015 d ago
Sep 22, 2026Kang Jyh Lee
CHIEF EXECUTIVE OFFICER
SOpen-market sale
COMMON STOCK
-10,000$29.70$297k354,85019 d ago
Apr 13, 2026Michelle Almeida
director
AGrant or award
COMMON STOCK
+3,722$0.00$04,956Apr 15, 2026
Apr 13, 2026David A. Garcia
director
AGrant or award
COMMON STOCK
+3,722$0.00$015,192Apr 15, 2026
Mar 26, 2026Kang Jyh Lee
CHIEF EXECUTIVE OFFICER
MOption exercise
COMMON STOCK
+5,000$10.75$54k390,850Mar 30, 2026
Mar 26, 2026Kang Jyh Lee
CHIEF EXECUTIVE OFFICER
SOpen-market sale
COMMON STOCK
-5,000$40.80$204k385,850Mar 30, 2026
Mar 26, 2026Kang Jyh Lee
CHIEF EXECUTIVE OFFICER
MOption exercise
PHOTRONICS STOCK OPTIONSderivative
-5,000$0.00$05,000Mar 30, 2026
Mar 23, 2026Kang Jyh Lee
CHIEF EXECUTIVE OFFICER
SOpen-market sale
COMMON STOCK
-10,000$39.00$390k385,850Mar 25, 2026
Mar 19, 2026Kang Jyh Lee
CHIEF EXECUTIVE OFFICER
SOpen-market sale
COMMON STOCK
-10,000$35.80$358k400,850Mar 24, 2026
Feb 9, 2026Rui Zhang
VP, CAO & Corporate Controller
AGrant or award
COMMON STOCK
+1,467$0.00$033,387Feb 11, 2026
Feb 9, 2026Todd Anthony Alesio
SVP, CAO
AGrant or award
COMMON STOCK
+983$0.00$017,946Feb 11, 2026
Feb 9, 2026Eric Rivera
President, CFO
AGrant or award
COMMON STOCK
+22,641$0.00$0177,690Feb 11, 2026
Jan 20, 2026Daniel JL Liao
director
AGrant or award
COMMON STOCK
+1,234$0.00$068,782Jan 22, 2026
Jan 20, 2026Michelle Almeida
director
AGrant or award
COMMON STOCK
+1,234$0.00$01,234Jan 22, 2026
Jan 16, 2026Kang Jyh Lee
CHIEF EXECUTIVE OFFICER
SOpen-market sale
COMMON STOCK
-10,000$34.51$345k410,850Jan 20, 2026
Jan 13, 2026Han Kyung Park
SVP & GM of FPD Ops
SOpen-market sale
COMMON STOCK
-7,500$33.70$253k81,750Jan 20, 2026
Jan 16, 2026Han Kyung Park
SVP & GM of FPD Ops
SOpen-market sale
COMMON STOCK
-6,250$34.89$218k75,500Jan 20, 2026
Jan 15, 2026Kang Jyh Lee
CHIEF EXECUTIVE OFFICER
SOpen-market sale
COMMON STOCK
-10,000$34.13$341k415,850Jan 16, 2026
Jan 13, 2026Kang Jyh Lee
CHIEF EXECUTIVE OFFICER
SOpen-market sale
COMMON STOCK
-10,000$34.42$344k425,850Jan 15, 2026
Jan 12, 2026Kang Jyh Lee
CHIEF EXECUTIVE OFFICER
SOpen-market sale
COMMON STOCK
-10,000$33.05$331k435,850Jan 14, 2026
Jan 7, 2026Kang Jyh Lee
CHIEF EXECUTIVE OFFICER
SOpen-market sale
COMMON STOCK
-10,000$34.83$348k445,850Jan 9, 2026
Jan 3, 2026George Macricostas
CEO
AGrant or award
COMMON STOCK
+177,432$0.00$0455,262Jan 7, 2026
Jan 3, 2026Constantine S Macricostas
director
AGrant or award
COMMON STOCK
+1,272$0.00$0460,895Jan 7, 2026
Jan 3, 2026Eric Rivera
EVP, CFO
AGrant or award
COMMON STOCK
+40,407$0.00$0155,049Jan 7, 2026
Jan 3, 2026Hsueh-Chun Wang
SVP/COO IC & US/EU Mnstrm Ops
AGrant or award
COMMON STOCK
+28,435$0.00$0164,685Jan 7, 2026
Jan 3, 2026Han Kyung Park
SVP & GM of FPD Ops
AGrant or award
COMMON STOCK
+23,945$0.00$0113,195Jan 7, 2026
Jan 3, 2026Mitchell G Tyson
director
AGrant or award
COMMON STOCK
+1,272$0.00$048,199Jan 7, 2026
Jan 3, 2026Mary Paladino
director
AGrant or award
COMMON STOCK
+1,272$0.00$035,070Jan 7, 2026
Jan 5, 2026Kang Jyh Lee
CHIEF EXECUTIVE OFFICER
SOpen-market sale
COMMON STOCK
-10,000$33.90$339k465,850Jan 7, 2026
Jan 3, 2026David A. Garcia
director
AGrant or award
COMMON STOCK
+1,272$0.00$011,470Jan 7, 2026
Jan 3, 2026Adam M Lewis
director
AGrant or award
COMMON STOCK
+1,272$0.00$031,070Jan 7, 2026
Jan 6, 2026Kang Jyh Lee
CHIEF EXECUTIVE OFFICER
SOpen-market sale
COMMON STOCK
-10,000$35.41$354k455,850Jan 7, 2026
Jan 6, 2026Mitchell G Tyson
director
SOpen-market sale
COMMON STOCK
-5,000$35.21$176k43,199Jan 7, 2026
Jan 6, 2026Mary Paladino
director
SOpen-market sale
COMMON STOCK
-11,250$35.11$395k23,820Jan 7, 2026
Jan 2, 2026Kang Jyh Lee
CHIEF EXECUTIVE OFFICER
SOpen-market sale
COMMON STOCK
-8,750$33.54$293k475,850Jan 6, 2026
Oct 14, 2025Eric Rivera
EVP, CFO
AGrant or award
COMMON STOCK
+882$19.83$17k120,697Jan 6, 2026
Jan 2, 2026Eric Rivera
EVP, CFO
FTax withholding
COMMON STOCK
-686$33.41$23k120,011Jan 6, 2026
Jan 2, 2026Eric Rivera
EVP, CFO
FTax withholding
COMMON STOCK
-1,372$33.41$46k118,639Jan 6, 2026
Jan 2, 2026Eric Rivera
EVP, CFO
FTax withholding
COMMON STOCK
-1,019$33.41$34k117,620Jan 6, 2026
Jan 2, 2026Eric Rivera
EVP, CFO
FTax withholding
COMMON STOCK
-2,978$33.41$99k114,642Jan 6, 2026
Dec 22, 2025Kang Jyh Lee
CHIEF EXECUTIVE OFFICER
SOpen-market sale
COMMON STOCK
-8,750$34.31$300k484,600Dec 23, 2025
Dec 12, 2025Christopher J Progler
EVP, Chief Technology Officer
SOpen-market sale
Common Stock
-25,000$35.78$895k165,591Dec 16, 2025
Dec 12, 2025Kang Jyh Lee
CHIEF EXECUTIVE OFFICER
SOpen-market sale
COMMON STOCK
-20,000$38.53$771k493,350Dec 16, 2025
Dec 12, 2025Han Kyung Park
SVP & GM of FPD Ops
SOpen-market sale
COMMON STOCK
-13,750$37.99$522k89,250Dec 16, 2025
Dec 12, 2025Mitchell G Tyson
director
SOpen-market sale
COMMON STOCK
-5,000$36.17$181k46,927Dec 16, 2025
Dec 15, 2025Kang Jyh Lee
CHIEF EXECUTIVE OFFICER
MOption exercise
COMMON STOCK
+20,000$11.35$227k513,350Dec 16, 2025
50 of 115 rows shown.

Insiders

Everyone who has filed a Form 4 here.

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.