Figures computed from official regulatory filings — .
Ownershipinsiders 58.49% · institutions 1.83% · short 4.1% of float
In USD · as of Oct 5, 2026
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SemiLEDs Corporation develops, manufactures, and sells light emitting diode (LED) chips, components, and modules and systems in the United States, Taiwan, the Netherlands, Japan, and internationally. The company also sells enhanced vertical, LED product series in blue, white, green, and UV; LED chips to packagers or distributors; and lighting products primarily to original design manufacturers of lighting products and the end-users of lighting devices, as well as packs and sells its LED products. Its products are used for general lighting applications, including commercial, industrial, and residential lighting; LED luminaries and LED retrofits; and specialty industrial applications, including ultraviolet curing of polymers, LED light therapy in medical/cosmetic applications, counterfeit detection, germicidal and viricidal devices, LED lighting for horticulture applications, architectural lighting, and entertainment lighting. SemiLEDs Corporation was incorporated in 2005 and is based in Chu-Nan, Taiwan.
Market information source · Oct 5, 2026
SEC company identity · Oct 5, 2026
Open-market timeline · full history
6 buys13 sells— close pricebar = usd volume, √ scaleclick a period to filter the table
| Insider | Type | Value · USD | Signals | Details | |
|---|---|---|---|---|---|
| Gough Walter Michael | Award | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Yu Chris Chang | Award | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Hsieh Edward Kuan Hsiung | Award | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Lee Hsin-Liang Christopher | Award | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| DOAN TRUNG T | Other | $400K | SEC |
| J.R. Simplot Co | Other | $1.2M | SEC |
| Simplot Scott R. | Other | $1.2M | SEC |
| Simplot Taiwan Inc. | Other | $1.2M | SEC |
| Yu Chris Chang | Award | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Gough Walter Michael | Award | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Hsieh Edward Kuan Hsiung | Award | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| DOAN TRUNG T | Other | $800K | Unusual size | SEC |
| Simplot Scott R. | Other | $1.4M | SEC |
| Simplot Taiwan Inc. | Other | $400K | SEC |
| J.R. Simplot Co | OtherD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| J.R. Simplot Co | Other | $1.4M | SEC |
| Simplot Taiwan Inc. | Other | $1.4M | SEC |
| Simplot Taiwan Inc. | OtherD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Simplot Scott R. | Other | $400K | SEC |
| J.R. Simplot Co | Other | $400K | SEC |
| Simplot Scott R. | OtherD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| DOAN TRUNG T | Other | $233.3K | SEC |
| DOAN TRUNG T | OtherD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Gough Walter Michael | Award | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| Hsieh Edward Kuan Hsiung | Award | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |