LEDS · Insider Trading
SemiLEDS Corporation
Every open-market purchase and sale reported by LEDS officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2025-11-28 | Chris Chang Yu | Director | A | +5,000 | — |
| 2025-11-28 | Edward Kuan Hsiung Hsieh | Director | A | +5,000 | — |
| 2025-11-28 | Walter Michael Gough | Director | A | +5,000 | — |
| 2025-07-14 | Hsin-Liang Christopher Lee | Chief Financial Officer | A | +8,000 | — |
| 2025-03-04 | J.R. Simplot Co | 10%+ Owner | J | +722,891 | +$1.20M |
| 2025-03-04 | Simplot Taiwan Inc. | 10%+ Owner | J | +722,891 | +$1.20M |
| 2025-03-04 | Trung T Doan | Chairman and CEO | J | +240,963 | +$400.00K |
| 2025-03-04 | Scott R. Simplot | Director | J | +722,891 | +$1.20M |
| 2024-11-27 | Walter Michael Gough | Director | A | +5,000 | — |
| 2024-11-27 | Chris Chang Yu | Director | A | +5,000 | — |
| 2024-11-27 | Edward Kuan Hsiung Hsieh | Director | A | +5,000 | — |
| 2024-02-20 | Trung T Doan | Chairman and CEO | C | +629,921 | +$800.00K |
| 2024-01-10 | Scott R. Simplot | Director | MIXED | +1,355,365 | +$1.78M |
| 2024-01-10 | Simplot Taiwan Inc. | 10%+ Owner | MIXED | +1,355,365 | +$1.78M |
| 2024-01-10 | J.R. Simplot Co | 10%+ Owner | MIXED | +1,355,365 | +$1.78M |
| 2024-01-09 | Trung T Doan | Chairman and CEO | C | +178,106 | +$233.32K |
| 2023-07-11 | Walter Michael Gough | Director | A | +5,000 | — |
| 2023-07-11 | Edward Kuan Hsiung Hsieh | Director | A | +5,000 | — |
| 2023-04-26 | Hsin-Liang Christopher Lee | Chief Financial Officer | A | +8,000 | — |
| 2022-11-07 | Walter Michael Gough | Director | A | +5,000 | — |
| 2022-11-07 | Roger Lee | Director | A | +5,000 | — |
| 2022-11-07 | Edward Kuan Hsiung Hsieh | Director | A | +5,000 | — |
| 2021-11-12 | Hsin-Liang Christopher Lee | Chief Financial Officer | A | +8,000 | — |
| 2021-11-12 | Walter Michael Gough | Director | A | +5,000 | — |
| 2021-11-12 | Roger Lee | Director | A | +5,000 | — |
| 2021-11-12 | Edward Kuan Hsiung Hsieh | Director | A | +5,000 | — |
| 2021-02-09 | Hsin-Liang Christopher Lee | CFO | Sell | −11,500 | −$57.50K |
| 2020-11-30 | Edward Kuan Hsiung Hsieh | Director | A | +5,000 | — |
| 2020-11-30 | Walter Michael Gough | Director | A | +5,000 | — |
| 2020-11-30 | Roger Lee | Director | A | +5,000 | — |
| 2020-11-16 | Walter Michael Gough | Director | A | +2,500 | — |
| 2020-11-16 | Roger Lee | Director | A | +2,500 | — |
| 2020-11-16 | Edward Kuan Hsiung Hsieh | Director | A | +2,500 | — |
| 2020-11-16 | Hsin-Liang Christopher Lee | CFO | A | +1,800 | — |
| 2020-05-28 | Scott R. Simplot | Director | C | — | — |
| 2020-05-28 | J.R. Simplot Co | 10%+ Owner | C | — | — |
| 2020-05-28 | Simplot Taiwan Inc. | 10%+ Owner | C | — | — |
| 2020-05-27 | Trung T Doan | Chairman and CEO | C | +100,000 | +$300.00K |
| 2020-02-28 | J.R. Simplot Co | 10%+ Owner | MIXED | +500,000 | +$1.50M |
| 2020-02-28 | Scott R. Simplot | Director | MIXED | +500,000 | +$1.50M |
| 2020-02-28 | Simplot Taiwan Inc. | 10%+ Owner | J | +500,000 | — |
| 2020-02-25 | Trung T Doan | Chairman and CEO | Buy | — | — |
| 2020-01-13 | Hsin-Liang Christopher Lee | CFO | A | +8,000 | — |
| 2019-09-06 | Edward Kuan Hsiung Hsieh | Director | A | +2,500 | — |
| 2019-09-06 | Roger Lee | Director | A | +2,500 | — |
| 2019-09-06 | Walter Michael Gough | Director | A | +2,500 | — |
| 2018-07-12 | Roger Lee | Director | A | +2,500 | — |
| 2018-07-12 | Walter Michael Gough | Director | A | +2,500 | — |
| 2018-07-12 | Edward Kuan Hsiung Hsieh | Director | A | +2,500 | — |
| 2018-07-12 | Roger Lee | Director | A | +2,500 | — |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| J.R. Simplot Co | 10%+ Owner | 3,668,190 | $7.26M |
| Scott R. Simplot | Director | 3,199,226 | $6.33M |
| Simplot Taiwan Inc. | 10%+ Owner | 3,168,190 | $6.27M |
| Trung T Doan | Chairman and CEO | 1,674,105 | $3.31M |
| Edward Kuan Hsiung Hsieh | Director | 53,571 | $106.07K |
| Walter Michael Gough | Director | 41,068 | $81.31K |
| Hsin-Liang Christopher Lee | Chief Financial Officer | 33,800 | $66.92K |
| Chris Chang Yu | Director | 10,000 | $19.80K |
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the LEDS quote page; the site-wide leaderboard is on the insider transactions hub.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.