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Photronics stock timeline
A year of the price with every insider trade, planned sale, earnings report and material 8-K marked
252 sessions+20.7% to $27.36
Photronics (PLAB) stock rose 21% over the last 252 sessions, to $27.36. On the way it reported 0 quarters, its insiders filed 26 open-market trades and 4 Form 144 notices of planned sales, and the company filed 3 material 8-Ks. Each is marked on the price and listed with what the stock did next.
Each mark, and what followed
| Date | Kind | What | Next session | 5 sessions | 21 sessions |
|---|---|---|---|---|---|
| Sep 29, 2026 | Form 144 | Form 144: Kang Jyh Lee plans to sell $308K | +1.8% (+2.0% vs SPY) | +1.8% (+0.6% vs SPY) | −5.7% (−6.2% vs SPY) |
| Sep 25, 2026 | Form 144 | Form 144: Han Kyung Park plans to sell $289K | +2.0% (+1.4% vs SPY) | +3.4% (+3.8% vs SPY) | −5.7% (−4.8% vs SPY) |
| Sep 25, 2026 | Insider sale | Park Han Kyung sold $289K | +2.0% (+1.4% vs SPY) | +3.4% (+3.8% vs SPY) | −5.7% (−4.8% vs SPY) |
| Sep 24, 2026 | Form 144 | Form 144: Kang Jyh Lee plans to sell $221K | −1.8% (−1.7% vs SPY) | +1.4% (+2.1% vs SPY) | −8.4% (−7.9% vs SPY) |
| Sep 24, 2026 | Insider sale | Lee Kang Jyh sold $221K | −1.8% (−1.7% vs SPY) | +1.4% (+2.1% vs SPY) | −8.4% (−7.9% vs SPY) |
| Sep 22, 2026 | Form 144 | Form 144: Kang Jyh Lee plans to sell $297K | +3.6% (+3.6% vs SPY) | +3.9% (+4.9% vs SPY) | −2.5% (−1.9% vs SPY) |
| Sep 22, 2026 | Insider sale | Lee Kang Jyh sold $297K | +3.6% (+3.6% vs SPY) | +3.9% (+4.9% vs SPY) | −2.5% (−1.9% vs SPY) |
| Apr 17, 2026 | Insider sale | Zhang Rui sold $213K | +5.4% (+4.2% vs SPY) | +9.6% (+8.7% vs SPY) | +8.7% (+3.5% vs SPY) |
| Apr 16, 2026 | Insider sale | Lee Kang Jyh sold $918K | 0.0% (−0.3% vs SPY) | +8.8% (+7.2% vs SPY) | +12.6% (+5.9% vs SPY) |
| Apr 15, 2026 | Insider sale | Lee Kang Jyh sold $451K | +0.3% (−0.5% vs SPY) | +8.1% (+6.7% vs SPY) | +12.6% (+6.0% vs SPY) |
| Apr 14, 2026 | Insider sale | Wang Hsueh-Chun sold $872K | +0.1% (−1.1% vs SPY) | +7.6% (+4.4% vs SPY) | +13.0% (+5.6% vs SPY) |
| Apr 14, 2026 | Insider sale | Macricostas Constantine S sold $2.3M | +0.1% (−1.1% vs SPY) | +7.6% (+4.4% vs SPY) | +13.0% (+5.6% vs SPY) |
| Apr 13, 2026 | Insider sale | Rivera Eric sold $45K | +1.7% (+0.7% vs SPY) | +7.5% (+3.0% vs SPY) | +20.2% (+11.8% vs SPY) |
| Apr 13, 2026 | Insider sale | Lee Kang Jyh sold $225K | +1.7% (+0.7% vs SPY) | +7.5% (+3.0% vs SPY) | +20.2% (+11.8% vs SPY) |
| Apr 9, 2026 | Insider sale | Wang Hsueh-Chun sold $525K | +2.7% (+2.1% vs SPY) | +5.8% (+2.3% vs SPY) | +15.1% (+7.2% vs SPY) |
| Apr 9, 2026 | Insider sale | Rivera Eric sold $1.8M | +2.7% (+2.1% vs SPY) | +5.8% (+2.3% vs SPY) | +15.1% (+7.2% vs SPY) |
| Apr 9, 2026 | Insider sale | Lee Kang Jyh sold $220K | +2.7% (+2.1% vs SPY) | +5.8% (+2.3% vs SPY) | +15.1% (+7.2% vs SPY) |
| Apr 8, 2026 | Insider sale | Zhang Rui sold $76K | +7.2% (+4.7% vs SPY) | +12.7% (+7.5% vs SPY) | +25.7% (+15.0% vs SPY) |
| Apr 8, 2026 | Insider sale | Wang Hsueh-Chun sold $427K | +7.2% (+4.7% vs SPY) | +12.7% (+7.5% vs SPY) | +25.7% (+15.0% vs SPY) |
| Apr 8, 2026 | Insider sale | Macricostas George sold $5.2M | +7.2% (+4.7% vs SPY) | +12.7% (+7.5% vs SPY) | +25.7% (+15.0% vs SPY) |
| Apr 8, 2026 | Insider sale | Lee Kang Jyh sold $216K | +7.2% (+4.7% vs SPY) | +12.7% (+7.5% vs SPY) | +25.7% (+15.0% vs SPY) |
| Apr 6, 2026 | Insider sale | Lee Kang Jyh sold $203K | −0.9% (−1.4% vs SPY) | +9.4% (+5.9% vs SPY) | +19.2% (+10.1% vs SPY) |
| Apr 1, 2026 | Insider sale | Wang Hsueh-Chun sold $421K | +1.2% (+0.4% vs SPY) | +6.9% (+3.0% vs SPY) | +20.3% (+10.3% vs SPY) |
| Apr 1, 2026 | Insider sale | Tyson Mitchell G sold $423K | +1.2% (+0.4% vs SPY) | +6.9% (+3.0% vs SPY) | +20.3% (+10.3% vs SPY) |
| Apr 1, 2026 | Insider sale | Lee Kang Jyh sold $210K | +1.2% (+0.4% vs SPY) | +6.9% (+3.0% vs SPY) | +20.3% (+10.3% vs SPY) |
| Mar 26, 2026 | Insider sale | Lee Kang Jyh sold $204K | −8.4% (−6.6% vs SPY) | −5.7% (−5.4% vs SPY) | +18.9% (+10.6% vs SPY) |
| Mar 23, 2026 | Insider sale | Lee Kang Jyh sold $390K | +7.8% (+6.7% vs SPY) | +8.6% (+10.8% vs SPY) | +31.0% (+22.8% vs SPY) |
| Mar 19, 2026 | Insider sale | Lee Kang Jyh sold $358K | +4.3% (+4.6% vs SPY) | +20.0% (+20.5% vs SPY) | +31.2% (+23.8% vs SPY) |
| Jan 16, 2026 | Insider sale | Park Han Kyung sold $218K | +0.9% (+1.0% vs SPY) | +1.4% (+1.9% vs SPY) | +12.1% (+13.5% vs SPY) |
| Jan 16, 2026 | Insider sale | Lee Kang Jyh sold $345K | +0.9% (+1.0% vs SPY) | +1.4% (+1.9% vs SPY) | +12.1% (+13.5% vs SPY) |
| Jan 13, 2026 | 8-K | Directors and officers: departures, appointments, pay | −0.9% (−0.7% vs SPY) | +2.2% (+4.7% vs SPY) | +12.3% (+12.7% vs SPY) |
| Jan 7, 2026 | 8-K | Directors and officers: departures, appointments, pay | −9.2% (−9.2% vs SPY) | −10.4% (−10.5% vs SPY) | +6.6% (+6.5% vs SPY) |
| Jan 2, 2026 | 8-K | Directors and officers: departures, appointments, pay | −0.1% (−0.8% vs SPY) | −0.2% (−1.8% vs SPY) | +5.2% (+4.3% vs SPY) |
Insiders’ record here
In the year on the chart, Photronics' insiders reported 0 open-market buys ($0) and 26 sales ($17.1M). Of the 23 old enough to score, 21 were followed by the stock doing what the trade implied over the next 63 sessions (beating SPY after a buy, lagging it after a sale); the median excess return after a buy was — and after a sale −43.8%.
Across the whole universe (19,782 scored trades), insider buys beat the market 46% of the time and sales were followed by a lagging stock 61% of the time; buys of $1M or more 39%. Every pattern →
What this kind of 8-K usually did
| Item | 8-Ks | Next session, median | Up next session | 21 sessions, median | Typical size |
|---|---|---|---|---|---|
| 5.02 Directors and officers: departures, appointments, pay | 39,174 | −0.1% | 48% | +0.7% | ±1.4% |
Across every company in the move-odds universe, measured from the close before the filing. Every 8-K item ranked →
Photronics: every quarter → Live insider trades →
Prices are daily closes; filings and trades are as filed with the SEC (Form 4 within two business days of the trade, 8-K within four of the event). Moves after a mark are the stock's close-to-close change and the same for SPY; they describe the record, not what the next one will do. Not investment advice.