SEC Form 4
Photronics Inc (PLAB) insider trading
In the 12 months to Oct 26, 2026, 10 PLAB insiders reported open-market sales of $24.2M across 41 filings; no open-market purchases were filed.
Latest filing · Last 12 months · Source: SEC EDGAR · How we count
- Open-market sales
- $24.2M
- 41 filings · 10 insiders
- Open-market purchases
- $0
- 0 filings
- Pre-arranged sales (10b5-1)
- 1 of 41
- $225.2K of $24.2M sold (1%)
Who traded PLAB, and when
- Sale
- Sale, pre-arranged (10b5-1)
PLAB daily close from Oct 27, 2025 to Oct 26, 2026, between $20.28 and $54.96, last $28.28. 41 sale and 0 purchase filings by 10 insiders, marked at their filing dates. Kang Jyh Lee, Director: sold $8.7M across 22 filings, first filed Dec 16, 2025, last Oct 1, 2026. George Macricostas, CEO: sold $5.2M across 1 filing, first filed Apr 10, 2026, last Apr 10, 2026. Constantine S. Macricostas, Director: sold $2.3M across 1 filing, first filed Apr 14, 2026, last Apr 14, 2026. Hsueh-Chun Wang, SVP/COO IC & US/EU Mnstrm Ops: sold $2.2M across 4 filings, first filed Apr 3, 2026, last Apr 16, 2026. Eric Rivera, President, CFO: sold $1.9M across 2 filings, first filed Apr 13, 2026, last Apr 15, 2026. Han Kyung Park, SVP & GM of FPD Ops: sold $1.3M across 3 filings, first filed Dec 16, 2025, last Sep 29, 2026. 4 others: sold $2.6M across 8 filings, first filed Dec 2, 2025, last Apr 21, 2026.
Largest mark · tap a row for others
George Macricostas · CEO
Sale $5,203,718
121,194 shares at $42.94 avg
Filed Apr 10, 2026 · traded Apr 8
Close on filing date $44.90
Kang Jyh Lee · Director
Director
$8.7M soldGeorge Macricostas · CEO
CEO
$5.2M soldConstantine S. Macricostas · Director
Director
$2.3M soldHsueh-Chun Wang · SVP/COO IC & US/EU Mnstrm Ops
SVP/COO IC & US/EU Mnstrm Ops
$2.2M soldEric Rivera · President, CFO
President, CFO
$1.9M soldHan Kyung Park · SVP & GM of FPD Ops
SVP & GM of FPD Ops
$1.3M sold4 others
Combined, one mark per week
$2.6M soldOpen-market trades
41 filings in the last 12 months| Insider | Role | Sold | Bought | Filings | Pre-arranged (10b5-1) | Last filed |
|---|---|---|---|---|---|---|
| Kang Jyh Lee | Director | $8.7M | — | 22 | — | |
| George Macricostas | CEO | $5.2M | — | 1 | — | |
| Constantine S. Macricostas | Director | $2.3M | — | 1 | — | |
| Hsueh-Chun Wang | SVP/COO IC & US/EU Mnstrm Ops | $2.2M | — | 4 | — | |
| Eric Rivera | President, CFO | $1.9M | — | 2 | — | |
| Han Kyung Park | SVP & GM of FPD Ops | $1.3M | — | 3 | — | |
| Christopher J. Progler | EVP, Chief Technology Officer | $1.1M | — | 2 | 20% of sales | |
| Mitchell G. Tyson | Director | $780.0K | — | 3 | — | |
| Mary Paladino | Director | $395.0K | — | 1 | — | |
| Rui Zhang | VP, CAO & Corporate Controller | $289.0K | — | 2 | — |
| Filed | Insider | Type | Shares | Avg price | Value | Held after | Source |
|---|---|---|---|---|---|---|---|
traded | Kang Jyh Lee Director | Sale | 10,000 | $30.75 | $307.5K | 337,350 | |
traded | Han Kyung Park SVP & GM of FPD Ops | Sale | 9,500 | $30.37 | $288.5K | 66,000 | |
traded | Kang Jyh Lee Director | Sale | 7,500 | $29.50 | $221.3K | 347,350 | |
traded | Kang Jyh Lee Director | Sale | 10,000 | $29.70 | $297.0K | 354,850 | |
traded | Rui Zhang VP, CAO & Corporate Controller | Sale | 4,556 | $46.70 | $212.8K | 27,079 | |
traded | Kang Jyh Lee Director | Sale | 20,000 | $45.93 | $918.5K | 355,850 | |
traded | Kang Jyh Lee Director | Sale | 10,000 | $45.10 | $451.0K | 375,850 | |
traded | Hsueh-Chun Wang SVP/COO IC & US/EU Mnstrm Ops | Sale | 19,250 | $45.30 | $872.0K | 113,560 | |
traded | Eric Rivera President, CFO | Sale | 1,000 | $44.77 | $44.8K | 136,173 | |
traded | Kang Jyh Lee Director | Sale | 5,000 | $45.00 | $225.0K | 385,850 | |
traded | Constantine S. Macricostas Director | Sale | 50,000 | $45.35 | $2.3M | 0 | |
traded | Kang Jyh Lee Director | Sale | 5,000 | $44.00 | $220.0K | 385,850 | |
traded | Eric Rivera President, CFO | Sale | 41,517 | $44.00 | $1.8M | 176,808 | |
traded | Hsueh-Chun Wang SVP/COO IC & US/EU Mnstrm Ops | Sale | 11,875 | $44.25 | $525.5K | 132,810 | |
traded | Kang Jyh Lee Director | Sale | 5,000 | $43.27 | $216.4K | 385,850 | |
traded | Hsueh-Chun Wang SVP/COO IC & US/EU Mnstrm Ops | Sale | 10,000 | $42.69 | $426.9K | 144,685 | |
traded | Rui Zhang VP, CAO & Corporate Controller | Sale | 1,752 | $43.50 | $76.2K | 31,635 | |
traded | George Macricostas CEO | Sale | 121,194 | $42.94 | $5.2M | 334,068 | |
traded | Kang Jyh Lee Director | Sale | 5,000 | $40.53 | $202.7K | 385,850 | |
traded | Kang Jyh Lee Director | Sale | 5,000 | $42.00 | $210.0K | 385,850 | |
traded | Hsueh-Chun Wang SVP/COO IC & US/EU Mnstrm Ops | Sale | 10,000 | $42.08 | $420.8K | 160,499 | |
traded | Mitchell G. Tyson Director | Sale | 10,000 | $42.31 | $423.1K | 33,199 | |
traded | Kang Jyh Lee Director | Sale | 5,000 | $40.80 | $204.0K | 385,850 | |
traded | Kang Jyh Lee Director | Sale | 10,000 | $39.00 | $390.0K | 385,850 | |
traded | Kang Jyh Lee Director | Sale | 10,000 | $35.80 | $358.0K | 400,850 | |
traded | Han Kyung Park SVP & GM of FPD Ops | Sale | 13,750 | $34.24 | $470.8K | 75,500 | |
traded | Kang Jyh Lee Director | Sale | 10,000 | $34.51 | $345.1K | 410,850 | |
traded | Kang Jyh Lee Director | Sale | 10,000 | $34.13 | $341.3K | 415,850 | |
traded | Kang Jyh Lee Director | Sale | 10,000 | $34.42 | $344.2K | 425,850 | |
traded | Kang Jyh Lee Director | Sale | 10,000 | $33.05 | $330.5K | 435,850 | |
traded | Kang Jyh Lee Director | Sale | 10,000 | $34.83 | $348.3K | 445,850 | |
traded | Mitchell G. Tyson Director | Sale | 5,000 | $35.21 | $176.1K | 43,199 | |
traded | Mary Paladino Director | Sale | 11,250 | $35.11 | $395.0K | 23,820 | |
traded | Kang Jyh Lee Director | Sale | 20,000 | $34.66 | $693.1K | 455,850 | |
traded | Kang Jyh Lee Director | Sale | 8,750 | $33.54 | $293.5K | 475,850 | |
traded | Kang Jyh Lee Director | Sale | 8,750 | $34.31 | $300.2K | 484,600 | |
traded | Kang Jyh Lee Director | Sale | 40,000 | $37.49 | $1.5M | 493,350 | |
traded | Han Kyung Park SVP & GM of FPD Ops | Sale | 13,750 | $37.99 | $522.4K | 89,250 | |
traded | Mitchell G. Tyson Director | Sale | 5,000 | $36.17 | $180.9K | 46,927 | |
traded | Christopher J. Progler EVP, Chief Technology Officer | Sale | 25,000 | $35.78 | $894.5K | 165,591 | |
traded | Christopher J. Progler EVP, Chief Technology Officer | SalePre-arranged (10b5-1) | 10,000 | $22.52 | $225.2K | 190,591 |
GET /stocks/filings/vX/form-4?tickers=PLAB&filing_date.gte=2025-10-26&sort=filing_date.desc&limit=500{
"status": "OK",
"results": [
{
"tickers": [
"PLAB"
],
"issuer_cik": "0000810136",
"owner_cik": "0001748668",
"accession_number": "0001140361-26-038315",
"form_type": "4",
"filing_date": "2026-10-01",
"period_of_report": "2026-09-29",
"issuer_name": "PHOTRONICS INC",
"issuer_trading_symbol": "PLAB",
"owner_name": "Lee Kang Jyh",
"is_director": true,
"is_officer": false,
"is_ten_percent_owner": false,
"is_other": false,
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "COMMON STOCK",
"transaction_timeliness": "O",
"aff_10b5_one": false,
"transaction_date": "2026-09-29",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 10000,
"transaction_price_per_share": 30.75,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 337350,
"transaction_value": 307500,
"direct_or_indirect": "D",
"footnotes": [
{
"id": "F1",
"description": "These shares were sold in multiple transactions at prices ranging from $30.75 to $30.78. The price reported is a weighted average. The reporting person undertakes to provide, upon request by the SEC staff, the issuer, or any security holder of the issuer, full information regarding the number of shares sold at each separate price within the range."
}
]
},
{
"tickers": [
"PLAB"
],
"issuer_cik": "0000810136",
"owner_cik": "0002027437",
"accession_number": "0001140361-26-038036",
"form_type": "4",
"filing_date": "2026-09-29",
"period_of_report": "2026-09-25",
"issuer_name": "PHOTRONICS INC",
"issuer_trading_symbol": "PLAB",
"owner_name": "Park Han Kyung",
"is_director": false,
"is_officer": true,
"is_ten_percent_owner": false,
"is_other": false,
"officer_title": "SVP & GM of FPD Ops",
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "COMMON STOCK",
"transaction_timeliness": "O",
"aff_10b5_one": false,
"transaction_date": "2026-09-25",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 9500,
"transaction_price_per_share": 30.37,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 66000,
"transaction_value": 288515,
"direct_or_indirect": "D"
}
]
}
// trimmed to 2 resultsThe response includes every Form 4 record; this page keeps open-market purchases and sales on common stock and removes duplicate joint-filer rows.
Other insider activity (not market trades) · 38 records
- Option exercises8 records
- Tax withholding6 records
- Grants and awards21 records
- Gifts2 records
- Other1 record
Reported on Form 4 but not purchases or sales in the market, so not counted in the totals above.
How to read this page
- Open-market purchase or sale
- A buy or sell of the company's stock at market price. Grants, option exercises, shares withheld for tax, gifts and employee stock plan purchases are listed separately and not counted.
- Pre-arranged (10b5-1)
- The insider marked the filing as made under a trading plan set up in advance (SEC Rule 10b5-1). The mark covers the whole filing, and an unmarked filing may still be under a plan.
- Filing date
- Insiders have two business days to report a trade. Totals and the chart use the filing date, when the trade became public.
Frequently asked questions
Has Photronics Inc's CEO sold stock?
Yes. George Macricostas (CEO) sold 121,194 shares ($5.2M) in Apr 2026.
How current is PLAB’s insider data?
These are PLAB Form 4 filings from the last year, refreshed daily. The Massive Form 4 API has the full, continuously updated record.
What counts as an open-market buy or sell?
Only purchases and sales at the market price. Option exercises, grants, gifts, and shares withheld for taxes are reported on Form 4 but are left out of the buy and sell totals.
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This page joins two Massive endpoints: Form 4 filings and daily prices. Ask an agent to watch for new filings:
Using the Massive API (massive.com/docs/llms.txt), check Form 4 filings for PLAB every day with transaction_code=P and tell me when an insider files an open-market purchase, with their role, shares, price and the filing link.
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