Insider · CIK 0001748668
Kang Jyh Lee
ceoofficerdirector
Files at PLAB (PHOTRONICS INC). First filing Dec 20, 2024, latest Oct 1, 2026.
In brief
Kang Jyh Lee files SEC Form 4 as CEO and director at PLAB (PHOTRONICS INC). Since Dec 20, 2024, Kang Jyh Lee has reported 0 open-market buys worth $0 and 30 open-market sells worth $11M, the latest filed on Oct 1, 2026.
A track record needs three past buys with six months of prices behind them; Kang Jyh Lee has 0, so none is measured yet.
The newest scored trade: sold $308k of PLAB on Sep 29, 2026, filed Oct 1, 2026, scored 37 (weak). In the last 12 months: 0 buys worth $0 and 22 sells worth $8.7M.
Track record
Not enough history
Fewer than three past buys with six months of prices.
Median 6-month excess
-
after past buys, n = 0
Hit rate
-
past buys that beat the index over 6 months
Open-market trades
0 / 30
$0 bought, $11M sold
Where the trades landed
Last year at the company this insider has traded most, with each buy and sell on the bar it happened.
PLAB: PHOTRONICS INC
PLABOct 9, 2026 · close 29.62
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
This insider’s open-market buys and sells, scored.
| Score | Company | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 37Weak | PHOTRONICS INC | $308k 10,000 shares | -3% | +53% from low-43% from high | |
| 35Weak | PHOTRONICS INC | $221k 7,500 shares | -2% | +47% from low-46% from high | |
| 37Weak | PHOTRONICS INC | $297k 10,000 shares | -3% | +50% from low-45% from high | |
| 54Moderate | PHOTRONICS INC | $919k 20,000 shares | -5% | +174% from low-0% from high | |
| 47Moderate | PHOTRONICS INC | $451k 10,000 shares | -3% | +174% from low0% from high | |
| 27Weak | PHOTRONICS INC | $225k 5,000 shares | -1% | +173% from low0% from high | |
| 27Weak | PHOTRONICS INC | $220k 5,000 shares | -1% | +166% from low0% from high | |
| 27Weak | PHOTRONICS INC | $216k 5,000 shares | -1% | +159% from low-1% from high | |
| 27Weak | PHOTRONICS INC | $203k 5,000 shares | -1% | +142% from low-7% from high | |
| 27Weak | PHOTRONICS INC | $210k 5,000 shares | -1% | +145% from low-6% from high | |
| 27Weak | PHOTRONICS INC | $204k 5,000 shares | -1% | +138% from low-9% from high | |
| 46Moderate | PHOTRONICS INC | $390k 10,000 shares | -3% | +135% from low-10% from high | |
| 45Moderate | PHOTRONICS INC | $358k 10,000 shares | -2% | +121% from low-15% from high | |
| 45Moderate | PHOTRONICS INC | $345k 10,000 shares | -2% | +107% from low-13% from high | |
| 45Moderate | PHOTRONICS INC | $341k 10,000 shares | -2% | +105% from low-14% from high | |
| 45Moderate | PHOTRONICS INC | $344k 10,000 shares | -2% | +100% from low-16% from high | |
| 45Moderate | PHOTRONICS INC | $331k 10,000 shares | -2% | +102% from low-15% from high | |
| 45Moderate | PHOTRONICS INC | $348k 10,000 shares | -2% | +109% from low-12% from high | |
| 51Moderate | PHOTRONICS INC | $693k 20,000 shares | -4% | +100% from low-16% from high | |
| 44Moderate | PHOTRONICS INC | $293k 8,750 shares | -2% | +100% from low-16% from high | |
| 44Moderate | PHOTRONICS INC | $300k 8,750 shares | -2% | +106% from low-13% from high | |
| 40Moderate | PHOTRONICS INC | $1.5M 40,000 shares | -8% | +117% from low-8% from high | |
| 43Moderate | PHOTRONICS INC | $253k 10,000 shares | -2% | +50% from low-11% from high | |
| 42Moderate | PHOTRONICS INC | $203k 8,750 shares | -2% | +36% from low-19% from high | |
| 17Weak | PHOTRONICS INC | $90k 4,882 shares | -1% | +9% from low-35% from high | |
| 26Weak | PHOTRONICS INC | $517k 28,118 shares | -5% | +9% from low-35% from high | |
| 57Moderate | PHOTRONICS INC | $432k 20,000 shares | -4% | +8% from low-24% from high | |
| 56Moderate | PHOTRONICS INC | $420k 17,500 shares | -3% | - | |
| 52Moderate | PHOTRONICS INC | $213k 8,750 shares | -2% | - | |
| 43Moderate | PHOTRONICS INC | $505k 20,000 shares | -4% | - |
Planned sales
Form 144 notices this insider filed before selling restricted or control stock, newest first.
| Filed | Company | Shares | Value | Sale date | Past 3 months |
|---|---|---|---|---|---|
| Sep 29, 2026 | PLAB PHOTRONICS INC | 10,000 0.02% of outstanding | $308k | Sep 29, 2026 | $518k |
| Sep 24, 2026 | PLAB PHOTRONICS INC | 7,500 0.01% of outstanding | $221k | Sep 24, 2026 | $297k |
| Sep 22, 2026 | PLAB PHOTRONICS INC | 10,000 0.02% of outstanding | $297k | Sep 22, 2026 | none |
| Apr 16, 2026 | PLAB PHOTRONICS INC | 10,000 0.02% of outstanding | $461k | Apr 16, 2026 | $2.8M |
| Apr 16, 2026 | PLAB PHOTRONICS INC | 10,000 0.02% of outstanding | $458k | Apr 16, 2026 | $2.8M |
| Apr 15, 2026 | PLAB PHOTRONICS INC | 10,000 0.02% of outstanding | $451k | Apr 15, 2026 | $2.7M |
| Apr 13, 2026 | PLAB PHOTRONICS INC | 5,000 0.01% of outstanding | $225k | Apr 13, 2026 | $2.8M |
| Apr 9, 2026 | PLAB PHOTRONICS INC | 5,000 0.01% of outstanding | $220k | Apr 9, 2026 | $2.9M |
| Apr 8, 2026 | PLAB PHOTRONICS INC | 5,000 0.01% of outstanding | $216k | Apr 8, 2026 | $3.4M |
| Apr 6, 2026 | PLAB PHOTRONICS INC | 5,000 0.01% of outstanding | $203k | Apr 6, 2026 | $3.2M |
| Apr 1, 2026 | PLAB PHOTRONICS INC | 5,000 0.01% of outstanding | $210k | Apr 1, 2026 | $3.6M |
| Mar 26, 2026 | PLAB PHOTRONICS INC | 5,000 0.01% of outstanding | $204k | Mar 26, 2026 | $3.4M |
| Mar 23, 2026 | PLAB PHOTRONICS INC | 10,000 0.02% of outstanding | $390k | Mar 23, 2026 | $3.1M |
| Mar 19, 2026 | PLAB PHOTRONICS INC | 10,000 0.02% of outstanding | $358k | Mar 19, 2026 | $3.0M |
| Jan 16, 2026 | PLAB PHOTRONICS INC | 10,000 0.02% of outstanding | $345k | Jan 16, 2026 | $4.2M |
| Jan 15, 2026 | PLAB PHOTRONICS INC | 10,000 0.02% of outstanding | $341k | Jan 15, 2026 | $3.8M |
| Jan 13, 2026 | PLAB PHOTRONICS INC | 10,000 0.02% of outstanding | $344k | Jan 13, 2026 | $3.5M |
| Jan 12, 2026 | PLAB PHOTRONICS INC | 10,000 0.02% of outstanding | $331k | Jan 12, 2026 | $3.1M |
| Jan 7, 2026 | PLAB PHOTRONICS INC | 10,000 0.02% of outstanding | $348k | Jan 7, 2026 | $2.8M |
| Jan 6, 2026 | PLAB PHOTRONICS INC | 10,000 0.02% of outstanding | $354k | Jan 6, 2026 | $2.7M |
| Jan 5, 2026 | PLAB PHOTRONICS INC | 10,000 0.02% of outstanding | $339k | Jan 5, 2026 | $2.3M |
| Jan 2, 2026 | PLAB PHOTRONICS INC | 8,750 0.01% of outstanding | $293k | Jan 2, 2026 | $2.1M |
| Dec 22, 2025 | PLAB PHOTRONICS INC | 8,750 0.01% of outstanding | $300k | Dec 22, 2025 | $1.8M |
| Dec 15, 2025 | PLAB PHOTRONICS INC | 20,000 0.03% of outstanding | $729k | Dec 15, 2025 | $1.0M |
| Dec 12, 2025 | PLAB PHOTRONICS INC | 20,000 0.03% of outstanding | $771k | Dec 12, 2025 | $253k |
Transactions
The newest 50 of 55 rows this insider has filed.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Sep 29, 2026 | PLAB PHOTRONICS INC | SOpen-market sale COMMON STOCK | -10,000 | $30.75 | $308k | 337,350 | 12 d ago |
| Sep 24, 2026 | PLAB PHOTRONICS INC | SOpen-market sale COMMON STOCK | -7,500 | $29.50 | $221k | 347,350 | 15 d ago |
| Sep 22, 2026 | PLAB PHOTRONICS INC | SOpen-market sale COMMON STOCK | -10,000 | $29.70 | $297k | 354,850 | 19 d ago |
| Apr 16, 2026 | PLAB PHOTRONICS INC | SOpen-market sale COMMON STOCK | -10,000 | $46.05 | $461k | 365,850 | Apr 20, 2026 |
| Apr 16, 2026 | PLAB PHOTRONICS INC | SOpen-market sale COMMON STOCK | -10,000 | $45.80 | $458k | 355,850 | Apr 20, 2026 |
| Apr 15, 2026 | PLAB PHOTRONICS INC | SOpen-market sale COMMON STOCK | -10,000 | $45.10 | $451k | 375,850 | Apr 17, 2026 |
| Apr 13, 2026 | PLAB PHOTRONICS INC | MOption exercise COMMON STOCK | +5,000 | $8.60 | $43k | 390,850 | Apr 15, 2026 |
| Apr 13, 2026 | PLAB PHOTRONICS INC | SOpen-market sale COMMON STOCK | -5,000 | $45.00 | $225k | 385,850 | Apr 15, 2026 |
| Apr 13, 2026 | PLAB PHOTRONICS INC | MOption exercise PHOTRONICS STOCK OPTIONSderivative | -5,000 | $0.00 | $0 | 0 | Apr 15, 2026 |
| Apr 9, 2026 | PLAB PHOTRONICS INC | MOption exercise COMMON STOCK | +5,000 | $8.60 | $43k | 390,850 | Apr 13, 2026 |
| Apr 9, 2026 | PLAB PHOTRONICS INC | SOpen-market sale COMMON STOCK | -5,000 | $44.00 | $220k | 385,850 | Apr 13, 2026 |
| Apr 9, 2026 | PLAB PHOTRONICS INC | MOption exercise PHOTRONICS STOCK OPTIONSderivative | -5,000 | $0.00 | $0 | 5,000 | Apr 13, 2026 |
| Apr 8, 2026 | PLAB PHOTRONICS INC | MOption exercise COMMON STOCK | +5,000 | $8.60 | $43k | 390,850 | Apr 10, 2026 |
| Apr 8, 2026 | PLAB PHOTRONICS INC | SOpen-market sale COMMON STOCK | -5,000 | $43.27 | $216k | 385,850 | Apr 10, 2026 |
| Apr 6, 2026 | PLAB PHOTRONICS INC | MOption exercise PHOTRONICS STOCK OPTIONSderivative | -5,000 | $0.00 | $0 | 10,000 | Apr 10, 2026 |
| Apr 6, 2026 | PLAB PHOTRONICS INC | MOption exercise COMMON STOCK | +5,000 | $8.60 | $43k | 390,850 | Apr 8, 2026 |
| Apr 6, 2026 | PLAB PHOTRONICS INC | SOpen-market sale COMMON STOCK | -5,000 | $40.53 | $203k | 385,850 | Apr 8, 2026 |
| Apr 6, 2026 | PLAB PHOTRONICS INC | MOption exercise PHOTRONICS STOCK OPTIONSderivative | -5,000 | $0.00 | $0 | 15,000 | Apr 8, 2026 |
| Apr 1, 2026 | PLAB PHOTRONICS INC | MOption exercise COMMON STOCK | +5,000 | $10.75 | $54k | 390,850 | Apr 3, 2026 |
| Apr 1, 2026 | PLAB PHOTRONICS INC | SOpen-market sale COMMON STOCK | -5,000 | $42.00 | $210k | 385,850 | Apr 3, 2026 |
| Apr 1, 2026 | PLAB PHOTRONICS INC | MOption exercise PHOTRONICS STOCK OPTIONSderivative | -5,000 | $0.00 | $0 | 0 | Apr 3, 2026 |
| Mar 26, 2026 | PLAB PHOTRONICS INC | MOption exercise COMMON STOCK | +5,000 | $10.75 | $54k | 390,850 | Mar 30, 2026 |
| Mar 26, 2026 | PLAB PHOTRONICS INC | SOpen-market sale COMMON STOCK | -5,000 | $40.80 | $204k | 385,850 | Mar 30, 2026 |
| Mar 26, 2026 | PLAB PHOTRONICS INC | MOption exercise PHOTRONICS STOCK OPTIONSderivative | -5,000 | $0.00 | $0 | 5,000 | Mar 30, 2026 |
| Mar 23, 2026 | PLAB PHOTRONICS INC | SOpen-market sale COMMON STOCK | -10,000 | $39.00 | $390k | 385,850 | Mar 25, 2026 |
| Mar 19, 2026 | PLAB PHOTRONICS INC | SOpen-market sale COMMON STOCK | -10,000 | $35.80 | $358k | 400,850 | Mar 24, 2026 |
| Jan 16, 2026 | PLAB PHOTRONICS INC | SOpen-market sale COMMON STOCK | -10,000 | $34.51 | $345k | 410,850 | Jan 20, 2026 |
| Jan 15, 2026 | PLAB PHOTRONICS INC | SOpen-market sale COMMON STOCK | -10,000 | $34.13 | $341k | 415,850 | Jan 16, 2026 |
| Jan 13, 2026 | PLAB PHOTRONICS INC | SOpen-market sale COMMON STOCK | -10,000 | $34.42 | $344k | 425,850 | Jan 15, 2026 |
| Jan 12, 2026 | PLAB PHOTRONICS INC | SOpen-market sale COMMON STOCK | -10,000 | $33.05 | $331k | 435,850 | Jan 14, 2026 |
| Jan 7, 2026 | PLAB PHOTRONICS INC | SOpen-market sale COMMON STOCK | -10,000 | $34.83 | $348k | 445,850 | Jan 9, 2026 |
| Jan 5, 2026 | PLAB PHOTRONICS INC | SOpen-market sale COMMON STOCK | -10,000 | $33.90 | $339k | 465,850 | Jan 7, 2026 |
| Jan 6, 2026 | PLAB PHOTRONICS INC | SOpen-market sale COMMON STOCK | -10,000 | $35.41 | $354k | 455,850 | Jan 7, 2026 |
| Jan 2, 2026 | PLAB PHOTRONICS INC | SOpen-market sale COMMON STOCK | -8,750 | $33.54 | $293k | 475,850 | Jan 6, 2026 |
| Dec 22, 2025 | PLAB PHOTRONICS INC | SOpen-market sale COMMON STOCK | -8,750 | $34.31 | $300k | 484,600 | Dec 23, 2025 |
| Dec 12, 2025 | PLAB PHOTRONICS INC | SOpen-market sale COMMON STOCK | -20,000 | $38.53 | $771k | 493,350 | Dec 16, 2025 |
| Dec 15, 2025 | PLAB PHOTRONICS INC | MOption exercise COMMON STOCK | +20,000 | $11.35 | $227k | 513,350 | Dec 16, 2025 |
| Dec 15, 2025 | PLAB PHOTRONICS INC | SOpen-market sale COMMON STOCK | -20,000 | $36.45 | $729k | 493,350 | Dec 16, 2025 |
| Dec 15, 2025 | PLAB PHOTRONICS INC | MOption exercise Stock Optionderivative | +20,000 | $0.00 | $0 | 0 | Dec 16, 2025 |
| Oct 6, 2025 | PLAB PHOTRONICS INC | SOpen-market sale COMMON STOCK | -10,000 | $25.33 | $253k | 513,350 | Oct 8, 2025 |
| Aug 29, 2025 | PLAB PHOTRONICS INC | SOpen-market sale COMMON STOCK | -8,750 | $23.20 | $203k | 523,350 | Sep 3, 2025 |
| Jun 20, 2025 | PLAB PHOTRONICS INC | MOption exercise COMMON STOCK | +4,882 | $12.13 | $59k | 536,982 | Jun 24, 2025 |
| Jun 20, 2025 | PLAB PHOTRONICS INC | SOpen-market sale COMMON STOCK | -4,882 | $18.35 | $90k | 532,100 | Jun 24, 2025 |
| Jun 20, 2025 | PLAB PHOTRONICS INC | MOption exercise Non-qualified Stock Option (right to buy)derivative | -4,882 | $0.00 | $0 | 0 | Jun 24, 2025 |
| Jun 18, 2025 | PLAB PHOTRONICS INC | MOption exercise COMMON STOCK | +28,118 | $12.13 | $341k | 560,218 | Jun 20, 2025 |
| Jun 18, 2025 | PLAB PHOTRONICS INC | SOpen-market sale COMMON STOCK | -28,118 | $18.40 | $517k | 532,100 | Jun 20, 2025 |
| Jun 18, 2025 | PLAB PHOTRONICS INC | MOption exercise Non-qualified Stock Option (right to buy)derivative | -28,118 | $0.00 | $0 | 4,882 | Jun 20, 2025 |
| Mar 19, 2025 | PLAB PHOTRONICS INC | SOpen-market sale COMMON STOCK | -10,000 | $21.60 | $216k | 542,100 | Apr 29, 2025 |
| Mar 26, 2025 | PLAB PHOTRONICS INC | SOpen-market sale COMMON STOCK | -10,000 | $21.60 | $216k | 532,100 | Apr 29, 2025 |
| Dec 24, 2024 | PLAB PHOTRONICS INC | SOpen-market sale COMMON STOCK | -17,500 | $24.00 | $420k | 528,350 | Dec 27, 2024 |
50 of 55 rows shown.
Questions about Kang Jyh Lee
Answered from the filings on this page, as of the latest one.
Is Kang Jyh Lee buying or selling?
In the last 12 months Kang Jyh Lee reported 0 open-market buys worth $0 and 22 open-market sells worth $8.7M on SEC Form 4; the latest was sold $308k of PLAB on Sep 29, 2026. Grants, option exercises and tax withholding are not counted.
How did Kang Jyh Lee's past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Kang Jyh Lee has 0.
Where does Kang Jyh Lee file Form 4?
Kang Jyh Lee has filed Form 4 at PLAB (PHOTRONICS INC) as CHIEF EXECUTIVE OFFICER. A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.