Lee Kang Jyh
Director · Officer · PLAB
As of 2026-09-16, Lee Kang Jyh has 59 Form 4 transactions on record across 1 company — 37 in the trailing 12 months.
Everything this person has disclosed to the SEC on Form 4 — across every company they file for — reconstructed from the public record. A filing history, not a tip sheet.
Pattern in the record: open-market sales filed in March in multiple years since 2025 — a recurring calendar cadence, more consistent with scheduled activity than a one-off decision.
Reconstructed holdings
- Direct $9.9M
- Indirect $0
| PLAB | direct | 355,850 sh | $9.9M |
Reconstructed from this person's own Form 4 filings — the total each filing reported owning afterward, priced at the close on the as-of date shown. A filed position can lag the real one.
Direct and indirect holdings (e.g. through a trust or fund) are tagged separately, as filed.
Trades by company
Filing ledger
| Date | Company | Action | Shares @ price | Value | Ownership Δ | Owned after | Filing |
|---|---|---|---|---|---|---|---|
| 2026-04-16 | PLAB | Sale | 10,000 @ $46.05 | $461K | −2.7% of holding | 365,850 | Form 4 |
| 2026-04-16 | PLAB | Sale | 10,000 @ $45.80 | $458K | −2.7% of holding | 355,850 | Form 4 |
| 2026-04-15 | PLAB | Sale | 10,000 @ $45.10 | $451K | −2.6% of holding | 375,850 | Form 4 |
| 2026-04-13 | PLAB | Sale | 5,000 @ $45.00 | $225K | −1.3% of holding | 385,850 | Form 4 |
| 2026-04-09 | PLAB | Sale | 5,000 @ $44.00 | $220K | −1.3% of holding | 385,850 | Form 4 |
| 2026-04-08 | PLAB | Sale | 5,000 @ $43.27 | $216K | −1.3% of holding | 385,850 | Form 4 |
| 2026-04-06 | PLAB | Sale | 5,000 @ $40.53 | $203K | −1.3% of holding | 385,850 | Form 4 |
| 2026-04-01 | PLAB | Sale | 5,000 @ $42.00 | $210K | −1.3% of holding | 385,850 | Form 4 |
| 2026-03-26 | PLAB | Sale | 5,000 @ $40.80 | $204K | −1.3% of holding | 385,850 | Form 4 |
| 2026-03-23 | PLAB | Sale | 10,000 @ $39.00 | $390K | −2.5% of holding | 385,850 | Form 4 |
| 2026-03-19 | PLAB | Sale | 10,000 @ $35.80 | $358K | −2.4% of holding | 400,850 | Form 4 |
| 2026-01-16 | PLAB | Sale | 10,000 @ $34.51 | $345K | −2.4% of holding | 410,850 | Form 4 |
| 2026-01-15 | PLAB | Sale | 10,000 @ $34.13 | $341K | −2.3% of holding | 415,850 | Form 4 |
| 2026-01-13 | PLAB | Sale | 10,000 @ $34.42 | $344K | −2.3% of holding | 425,850 | Form 4 |
| 2026-01-12 | PLAB | Sale | 10,000 @ $33.05 | $331K | −2.2% of holding | 435,850 | Form 4 |
| 2026-01-07 | PLAB | Sale | 10,000 @ $34.83 | $348K | −2.2% of holding | 445,850 | Form 4 |
| 2026-01-06 | PLAB | Sale | 10,000 @ $35.41 | $354K | −2.1% of holding | 455,850 | Form 4 |
| 2026-01-05 | PLAB | Sale | 10,000 @ $33.90 | $339K | −2.1% of holding | 465,850 | Form 4 |
| 2026-01-02 | PLAB | Sale | 8,750 @ $33.54 | $293K | −1.8% of holding | 475,850 | Form 4 |
| 2025-12-22 | PLAB | Sale | 8,750 @ $34.31 | $300K | −1.8% of holding | 484,600 | Form 4 |
| 2025-12-15 | PLAB | Sale | 20,000 @ $36.45 | $729K | −3.9% of holding | 493,350 | Form 4 |
| 2025-12-12 | PLAB | Sale | 20,000 @ $38.53 | $771K | −3.9% of holding | 493,350 | Form 4 |
| 2025-10-06 | PLAB | Sale | 10,000 @ $25.33 | $253K | −1.9% of holding | 513,350 | Form 4 |
| 2025-08-29 | PLAB | Sale | 8,750 @ $23.20 | $203K | −1.6% of holding | 523,350 | Form 4 |
| 2025-06-20 | PLAB | Sale | 4,882 @ $18.35 | $90K | −0.9% of holding | 532,100 | Form 4 |
| 2025-06-18 | PLAB | Sale | 28,118 @ $18.40 | $517K | −5.0% of holding | 532,100 | Form 4 |
| 2025-03-26 | PLAB | Sale | 10,000 @ $21.60 | $216K | −1.8% of holding | 532,100 | Form 4 |
| 2025-03-19 | PLAB | Sale | 10,000 @ $21.60 | $216K | −1.8% of holding | 542,100 | Form 4 |
| 2025-03-05 | PLAB | Sale | 10,000 @ $20.90 | $209K | −1.8% of holding | 552,100 | Form 4 |
| 2025-01-17 | PLAB | Sale | 10,000 @ $24.47 | $245K | −1.7% of holding | 562,100 | Form 4 |
| 2025-01-16 | PLAB | Sale | 8,750 @ $24.40 | $214K | −1.5% of holding | 572,100 | Form 4 |
| 2025-01-06 | PLAB | Sale | 10,000 @ $25.02 | $250K | −1.7% of holding | 580,850 | Form 4 |
| 2025-01-02 | PLAB | Sale | 8,750 @ $24.20 | $212K | −1.7% of holding | 510,850 | Form 4 |
| 2025-01-02 | PLAB | Sale | 8,750 @ $24.00 | $210K | −1.7% of holding | 519,600 | Form 4 |
| 2024-12-24 | PLAB | Sale | 17,500 @ $24.00 | $420K | −3.2% of holding | 528,350 | Form 4 |
| 2024-12-20 | PLAB | Sale | 8,750 @ $24.33 | $213K | −1.6% of holding | 545,850 | Form 4 |
| 2024-12-19 | PLAB | Sale | 10,000 @ $25.29 | $253K | −1.8% of holding | 534,600 | Form 4 |
| 2024-12-19 | PLAB | Sale | 10,000 @ $25.25 | $253K | −1.9% of holding | 524,600 | Form 4 |
21 award / exercise / gift records — not counted as purchases
| Date | Company | Action | Shares | Owned after | Filing |
|---|---|---|---|---|---|
| 2026-04-13 | PLAB | Option exercise | 5,000 | 390,850 | Form 4 |
| 2026-04-13 | PLAB | Option exercise | 5,000 | 0 | Form 4 |
| 2026-04-09 | PLAB | Option exercise | 5,000 | 390,850 | Form 4 |
| 2026-04-09 | PLAB | Option exercise | 5,000 | 5,000 | Form 4 |
| 2026-04-08 | PLAB | Option exercise | 5,000 | 390,850 | Form 4 |
| 2026-04-06 | PLAB | Option exercise | 5,000 | 390,850 | Form 4 |
| 2026-04-06 | PLAB | Option exercise | 5,000 | 10,000 | Form 4 |
| 2026-04-06 | PLAB | Option exercise | 5,000 | 15,000 | Form 4 |
| 2026-04-01 | PLAB | Option exercise | 5,000 | 390,850 | Form 4 |
| 2026-04-01 | PLAB | Option exercise | 5,000 | 0 | Form 4 |
| 2026-03-26 | PLAB | Option exercise | 5,000 | 390,850 | Form 4 |
| 2026-03-26 | PLAB | Option exercise | 5,000 | 5,000 | Form 4 |
| 2025-12-15 | PLAB | Option exercise | 20,000 | 513,350 | Form 4 |
| 2025-12-15 | PLAB | Option exercise | 20,000 | 0 | Form 4 |
| 2025-06-20 | PLAB | Option exercise | 4,882 | 536,982 | Form 4 |
| 2025-06-20 | PLAB | Option exercise | 4,882 | 0 | Form 4 |
| 2025-06-18 | PLAB | Option exercise | 28,118 | 560,218 | Form 4 |
| 2025-06-18 | PLAB | Option exercise | 28,118 | 4,882 | Form 4 |
| 2025-01-03 | PLAB | Award / grant | 80,000 | 590,850 | Form 4 |
| 2024-12-19 | PLAB | Option exercise | 30,000 | 554,600 | Form 4 |
| 2024-12-19 | PLAB | Option exercise | 30,000 | — | Form 4 |
Source: SEC Form 4 filings. Each row links to its original filing.
Research tool, not investment advice — historical frequencies, not recommendations. A product of Marovel Technologies LLC. Full terms.