SEC Form 4 · Updated Daily
LEDS
— SEMILEDS CORPORATION OwnershipInsider and institutional ownership derived from SEC Form 4 filings. Click any owner to see their holdings across every company they’ve filed on, and how their position has changed over time.
Current Reporting Owners
| Owner | Role | Shares Owned | As Of | Last Activity |
|---|---|---|---|---|
| Simplot Scott R. | 10%+ Owner · Director | 3,199,226 | 2025-02-28 | J |
| Simplot Taiwan Inc. | 10%+ Owner | 3,168,190 | 2025-02-28 | J |
| J.R. Simplot Co | 10%+ Owner | 3,168,190 | 2025-02-28 | J |
| DOAN TRUNG T | Director | 1,516,962 | 2025-02-28 | J |
| Tran Anh Chuong | 10%+ Owner | 1,167,625 | 2013-01-15 | S |
| Well Thrive Ltd | 10%+ Owner | 577,000 | 2016-08-23 | — |
| Chang Sheng-Chun | 10%+ Owner | 577,000 | 2016-08-23 | — |
| Cokgor Ilkan | Officer | 200,000 | 2013-04-05 | A |
| Lau Jack | Director | 110,712 | 2014-04-21 | A |
| Young David | Officer | 103,571 | 2012-02-20 | A |
| Lin Chen-Hao Timothy | Officer | 60,000 | 2014-05-09 | A |
| Yeh Shung-Chiang (Jack) | Officer | 59,285 | 2010-12-08 | J |
| Hsieh Edward Kuan Hsiung | Director | 53,571 | 2025-11-27 | A |
| Gough Walter Michael | Director | 41,068 | 2025-11-27 | A |
| BECK RICHARD P | Director | 39,290 | 2012-02-07 | M |
| Lee Hsin-Liang Christopher | Officer | 33,800 | 2025-07-10 | A |
| HILL RICHARD | Director | 17,650 | 2012-02-07 | M |
| Johnson Mark | Director | 17,650 | 2012-02-07 | M |
| Lee Roger | Director | 17,500 | 2022-11-07 | A |
| del Prado Arthur H | Director | 12,042 | 2016-06-22 | D |
| SemiLEDs Corp | Officer | 11,500 | 2018-01-31 | A |
| Yu Chris Chang | Director | 10,000 | 2025-11-27 | A |
| LIN Yingku (Adam) | Officer | 1,750 | 2012-11-16 | D |
| Chin Lanfang (Lydia) | Officer | 1,000 | 2011-03-31 | A |
| Tuttle Mark Ewing | Officer | 0 | 2015-10-16 | D |
Recent Filings
| Date | Owner | Activity | Shares | Price | Owned After |
|---|---|---|---|---|---|
| 2025-11-27 | Hsieh Edward Kuan Hsiung | Grant / award | 5,000 | $0.00 | 53,571 |
| 2025-11-27 | Gough Walter Michael | Grant / award | 5,000 | $0.00 | 41,068 |
| 2025-11-27 | Yu Chris Chang | Grant / award | 5,000 | $0.00 | 10,000 |
| 2025-07-10 | Lee Hsin-Liang Christopher | Grant / award | 8,000 | $0.00 | 33,800 |
| 2025-02-28 | DOAN TRUNG T | J | 240,963 | $1.66 | 1,516,962 |
| 2025-02-28 | Simplot Scott R. | J | 722,891 | $1.66 | 3,199,226 |
| 2025-02-28 | Simplot Taiwan Inc. | J | 722,891 | $1.66 | 3,168,190 |
| 2025-02-28 | J.R. Simplot Co | J | 722,891 | $1.66 | 3,168,190 |
| 2024-11-27 | Hsieh Edward Kuan Hsiung | Grant / award | 5,000 | $0.00 | 48,571 |
| 2024-11-27 | Gough Walter Michael | Grant / award | 5,000 | $0.00 | 36,068 |
| 2024-11-27 | Yu Chris Chang | Grant / award | 5,000 | $0.00 | 5,000 |
| 2024-02-09 | DOAN TRUNG T | Conversion | 629,921 | $1.27 | 1,275,999 |
| 2024-01-08 | DOAN TRUNG T | Conversion (derivative) | 233,319 | $0.00 | 0 |
| 2024-01-08 | DOAN TRUNG T | Conversion | 178,106 | $1.31 | 646,078 |
| 2024-01-08 | J.R. Simplot Co | Conversion (derivative) | — | $0.00 | 0 |
| 2024-01-08 | J.R. Simplot Co | J | 305,343 | $1.31 | 2,445,299 |
| 2024-01-08 | J.R. Simplot Co | Conversion | 1,050,022 | $1.31 | 2,139,956 |
| 2024-01-08 | Simplot Taiwan Inc. | Conversion (derivative) | — | $0.00 | 0 |
| 2024-01-08 | Simplot Taiwan Inc. | J | 305,343 | $1.31 | 2,445,299 |
| 2024-01-08 | Simplot Taiwan Inc. | Conversion | 1,050,022 | $1.31 | 2,139,956 |
| 2024-01-08 | Simplot Scott R. | Conversion (derivative) | — | $0.00 | 0 |
| 2024-01-08 | Simplot Scott R. | J | 305,343 | $1.31 | 2,476,335 |
| 2024-01-08 | Simplot Scott R. | Conversion | 1,050,022 | $1.31 | 2,170,992 |
| 2023-07-07 | Hsieh Edward Kuan Hsiung | Grant / award | 5,000 | $0.00 | 43,571 |
| 2023-07-07 | Gough Walter Michael | Grant / award | 5,000 | $0.00 | 31,068 |
| 2023-04-25 | Lee Hsin-Liang Christopher | Grant / award | 8,000 | $0.00 | 25,800 |
| 2022-11-07 | Hsieh Edward Kuan Hsiung | Grant / award | 5,000 | $0.00 | 38,571 |
| 2022-11-07 | Gough Walter Michael | Grant / award | 5,000 | $0.00 | 26,068 |
| 2022-11-07 | Lee Roger | Grant / award | 5,000 | $0.00 | 17,500 |
| 2021-11-12 | Hsieh Edward Kuan Hsiung | Grant / award | 5,000 | $0.00 | 33,571 |
| 2021-11-12 | Gough Walter Michael | Grant / award | 5,000 | $0.00 | 21,068 |
| 2021-11-12 | Lee Roger | Grant / award | 5,000 | $0.00 | 12,500 |
| 2021-11-12 | Lee Hsin-Liang Christopher | Grant / award | 8,000 | $0.00 | 17,800 |
| 2021-02-09 | Lee Hsin-Liang Christopher | Open-market sale | 11,500 | $5.00 | 9,800 |
| 2020-11-12 | Hsieh Edward Kuan Hsiung | Grant / award | 2,500 | $0.00 | 26,071 |
| 2020-11-12 | Lee Hsin-Liang Christopher | Grant / award | 1,800 | $0.00 | 21,300 |
| 2020-11-12 | Lee Roger | Grant / award | 2,500 | $0.00 | 5,000 |
| 2020-11-12 | Gough Walter Michael | Grant / award | 2,500 | $0.00 | 13,568 |
| 2020-11-12 | Gough Walter Michael | Grant / award | 5,000 | $0.00 | 16,068 |
| 2020-11-12 | Lee Roger | Grant / award | 5,000 | $0.00 | 7,500 |
Source: SEC EDGAR Form 4 filings. For informational purposes only — not investment advice.