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PLAB · PHOTRONICS INC

Everything on this page is public record — SEC Form 4 filings and congressional disclosures — alongside any INSIDER SCANNER research case for this company.

Open-market buys0
Open-market sells4
Research cases0
Last filing2026-09-29

Insider flow: Selling only — a count of disclosed transactions, not a rating or a recommendation.

Insider transaction timeline

Every reported transaction, positioned by trade date. Purchases sit above the axis, sales below; circle area is proportional to dollar value. No share-price line is drawn — this feed carries transaction prices only, and a price history inferred from them would imply market data the filings do not contain.

Open-market purchase Open-market sale
2026-09-22 — Lee Kang Jyh · sold 10,000 @ $29.70 2026-09-24 — Lee Kang Jyh · sold 7,500 @ $29.50 2026-09-25 — Park Han Kyung · sold 9,500 @ $30.37 2026-09-29 — Lee Kang Jyh · sold 10,000 @ $30.75
2026-09-222026-09-29

Insider participation

One row per insider, one cell per reported transaction, shaded by value. Repeat buying and activity clustered in time are visible at a glance.

Lee Kang Jyh Director
Park Han Kyung SVP & GM of FPD Ops
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The analysis built on top of these filings

The filings above are public record and stay public here. What an account adds for $PLAB is the reading of them — and for this company, that is what the list below says it is, no more.

  • Transaction timelineThe [{'transaction_date': '2026-09-29', 'insider_name': 'Lee Kang Jyh', 'insider_title': 'Director', 'transaction_type': 'Open-market sell', 'shares': 10000.0, 'price': 30.75, 'value': 307500.0, 'is_buy': False}, {'transaction_date': '2026-09-25', 'insider_name': 'Park Han Kyung', 'insider_title': 'SVP & GM of FPD Ops', 'transaction_type': 'Open-market sell', 'shares': 9500.0, 'price': 30.37, 'value': 288515.0, 'is_buy': False}, {'transaction_date': '2026-09-24', 'insider_name': 'Lee Kang Jyh', 'insider_title': 'Director', 'transaction_type': 'Open-market sell', 'shares': 7500.0, 'price': 29.5, 'value': 221250.0, 'is_buy': False}, {'transaction_date': '2026-09-22', 'insider_name': 'Lee Kang Jyh', 'insider_title': 'Director', 'transaction_type': 'Open-market sell', 'shares': 10000.0, 'price': 29.7, 'value': 297000.0, 'is_buy': False}] reported transactions plotted over the window rather than listed, so concentration is visible.

Not available for PLAB today: no reported open-market purchases in this window, so there is no insider cost basis to compute; no research case — nothing here has cleared the scoring threshold. Both appear on this page on their own if that changes.

A free account opens all of it.

Not financial advice. This page reports public filings and past research output. It is not a recommendation to buy or sell, and no price target here is a prediction. Trade at your own risk.