Han Kyung Park is VP at PHOTRONICS INC (PLAB). They have made 7 open-market trades across 1 company since 2024, most recently 2026-09-25.
CIK 0002027437
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
0 open-market purchases, against 7 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| PLAB | 66,000 | $1.8M |
Shares reported on the most recent Form 4, priced at the 2026-09-29 close.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| PLAB | SELL | 2026-09-25 | 2026-09-29 | $30.37 | $289K | -4.9% | -6.5% | — |
| PLAB | SELL | 2026-01-13 | 2026-01-20 | $34.24 | $471K | -1.8% | +5.9% | +40.0% |
| PLAB | SELL | 2025-12-12 | 2025-12-16 | $37.99 | $1.0M | -4.2% | -0.6% | +0.2% |
| PLAB | SELL | 2025-09-03 | 2025-09-05 | $22.00 | $330K | +2.7% | +9.9% | +5.4% |
| PLAB | SELL | 2025-01-07 | 2025-01-08 | $24.63 | $554K | +0.8% | -5.2% | -28.8% |
| PLAB | SELL | 2025-01-06 | 2025-01-07 | $24.29 | $547K | -0.2% | -5.2% | -28.1% |
| PLAB | SELL | 2024-12-24 | 2024-12-27 | $23.80 | $268K | -0.3% | -4.1% | -9.8% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.