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PLAB
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Photronics, Inc.

PLAB · Technology · Photronics, Inc., together with its subsidiaries, engages in the manufacture and sale of photomask products and services in the United Stat…

Photronics, Inc. (PLAB), in the Technology sector, has 39 disclosed filings on Paydirt over the trailing twelve months from 10 corporate insiders: 0 purchases and 39 sales, 2 filed past the deadline. Filers took a median of 2 days from execution to disclosure, and the most recent trade was executed Sep 29 and filed Oct 2. The most active filer was Kang Jyh Lee with 22 filings. Data as of Nov 7 2026.

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Filings, ttm
39
0 buys · 39 sells · 2 late
Traders, ttm
10
10 insiders
Volume, ttmiDollar value disclosed in the window
$23.9M
estimated for Congress, as filed for insiders
Median delay
2d
execution to disclosure
Last traded
Sep 29
Filed Oct 1
ADViAverage daily dollar volume
$37.0M
market data
Share price · 12M
$29.71 (+32.2%)
$54.96$37.62$20.28Nov 10 2025Apr 27Oct 8

Adjusted for splits and dividends.

Volume by month
$14.5M$7.3M$0Dec 2024Jun 2025Dec 2025Jun 2026Dec 2024 · sells $4.1MJan 2025 · sells $1.9MMar 2025 · sells $425KApr 2025 · sells $699KJun 2025 · sells $517KJul 2025 · sells $895KSep 2025 · sells $752KOct 2025 · sells $1.4MDec 2025 · sells $3.6MJan 2026 · sells $3.7MMar 2026 · sells $952KApr 2026 · sells $14.5MSep 2026 · sells $807KOct 2026 · sells $308K
Buys $0 Sells $34.6M

Estimated for Congress, as filed for insiders · by filing month · past 24 months

Who filed · past 24 months
KL Kang Jyh Lee Director 33 filings · 0 buys, 33 sales HP Han Kyung Park SVP & GM of FPD Ops 7 filings · 0 buys, 7 sales MT Mitchell G Tyson Director 6 filings · 0 buys, 6 sales WF Walter M Fiederowicz Other 5 filings · 0 buys, 5 sales CP Christopher J Progler EVP, Chief Technology Officer 4 filings · 0 buys, 4 sales HW Hsueh-Chun Wang SVP/COO IC & US/EU Mnstrm Ops 4 filings · 0 buys, 4 sales CM Constantine S Macricostas Director 2 filings · 0 buys, 2 sales MP Mary Paladino Director 2 filings · 0 buys, 2 sales
All 12 filers AL Adam M Lewis Director 1 filing · 0 buys, 1 sale GM George Macricostas CEO 1 filing · 0 buys, 1 sale ER Eric Rivera President, CFO 1 filing · 0 buys, 1 sale RZ Rui Zhang VP, CAO & Corporate Controller 1 filing · 0 buys, 1 sale
Recent filings
Kang Jyh LeeSALE Director $308K
10,000 sh × $30.75
Exec Sep 29
Filed Oct 1 · 8:52 PM ET
Han Kyung ParkSALE SVP & GM of FPD Ops $289K
9,500 sh × $30.37
Exec Sep 25
Filed Sep 29 · 9:23 PM ET
Kang Jyh LeeSALE Director $221K
7,500 sh × $29.50
Exec Sep 24
Filed Sep 28 · 8:46 PM ET
Kang Jyh LeeSALE Director $297K
10,000 sh × $29.70
Exec Sep 22
Filed Sep 24 · 9:35 PM ET
Rui ZhangSALE VP, CAO & Corporate Controller $213K
4,556 sh × $46.70
Exec Apr 17
Filed Apr 21 · 5:30 PM ET
Kang Jyh LeeSALE Director $918K
20,000 sh across 2 lots
Exec Apr 16
Filed Apr 20 · 5:30 PM ET
Kang Jyh LeeSALE Director $451K
10,000 sh × $45.10
Exec Apr 15
Filed Apr 17 · 5:30 PM ET
Hsueh-Chun WangSALE SVP/COO IC & US/EU Mnstrm Ops $872K
19,250 sh × $45.30
Exec Apr 14
Filed Apr 16 · 5:30 PM ET
Kang Jyh LeeSALE Director $225K
5,000 sh × $45.00
Exec Apr 13
Filed Apr 15 · 5:30 PM ET
Constantine S MacricostasSALE Director $2.3M
50,000 sh × $45.35
Exec Apr 14
Filed Apr 14 · 5:30 PM ET
Kang Jyh LeeSALE Director $220K
5,000 sh × $44.00
Exec Apr 9
Filed Apr 13 · 5:30 PM ET
Eric RiveraSALE President, CFO $1.8M
40,635 sh × $44.00
Exec Apr 9
Filed Apr 13 · 5:30 PM ET
Hsueh-Chun WangSALE SVP/COO IC & US/EU Mnstrm Ops $525K
11,875 sh × $44.25
Exec Apr 9
Filed Apr 13 · 5:30 PM ET
Kang Jyh LeeSALE Director $216K
5,000 sh × $43.27
Exec Apr 8
Filed Apr 10 · 5:30 PM ET
Hsueh-Chun WangSALE SVP/COO IC & US/EU Mnstrm Ops $427K
10,000 sh × $42.69
Exec Apr 8
Filed Apr 10 · 5:30 PM ET
George MacricostasSALE CEO $5.2M
121,194 sh across 3 lots
Exec Apr 8
Filed Apr 10 · 5:30 PM ET
Kang Jyh LeeSALE Director $203K
5,000 sh × $40.53
Exec Apr 6
Filed Apr 8 · 5:30 PM ET
Kang Jyh LeeSALE Director $210K
5,000 sh × $42.00
Exec Apr 1
Filed Apr 3 · 5:30 PM ET
Hsueh-Chun WangSALE SVP/COO IC & US/EU Mnstrm Ops $349K
8,286 sh across 2 lots
Exec Apr 1
Filed Apr 3 · 5:30 PM ET
Mitchell G TysonSALE Director $423K
10,000 sh × $42.31
Exec Apr 1
Filed Apr 3 · 5:30 PM ET
Kang Jyh LeeSALE Director $204K
5,000 sh × $40.80
Exec Mar 26
Filed Mar 30 · 5:30 PM ET
Kang Jyh LeeSALE Director $390K
10,000 sh × $39.00
Exec Mar 23
Filed Mar 25 · 5:30 PM ET
Kang Jyh LeeSALE Director $358K
10,000 sh × $35.80
Exec Mar 19
Filed Mar 24 · 5:30 PM ET †
Han Kyung ParkSALE SVP & GM of FPD Ops $471K
13,750 sh across 2 lots
Exec Jan 13
Filed Jan 20 · 5:30 PM ET †
Kang Jyh LeeSALE Director $345K
10,000 sh × $34.51
Exec Jan 16
Filed Jan 20 · 5:30 PM ET