The public view is the crawlable proof. The same sourced dataset is available through REST and MCP for agents, research scripts, and back-office tools.
| Date | Insider | Role | Action | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Nov 27, 2025 | Hsieh Edward Kuan Hsiung | Director | Grant(A) | 5K | — | $0 |
| Nov 27, 2025 | Gough Walter Michael | Director | Grant(A) | 5K | — | $0 |
| Nov 27, 2025 | Yu Chris Chang | Director | Grant(A) | 5K | — | $0 |
| Jul 10, 2025 | Lee Hsin-Liang Christopher | Chief Financial Officer | Grant(A) | 8K | — | $0 |
| Feb 28, 2025 | Simplot Scott R. | Director, 10% Owner | Other(J) | 723K | $1.66 | $1.2M |
| Feb 28, 2025 | Simplot Taiwan Inc. | 10% Owner | Other(J) | 723K | $1.66 | $1.2M |
| Feb 28, 2025 | J.R. Simplot Co | 10% Owner | Other(J) | 723K | $1.66 | $1.2M |
| Feb 28, 2025 | Doan Trung T | Chairman and CEO, Director, 10% Owner | Other(J) | 241K | $1.66 | $400K |
| Nov 27, 2024 | Hsieh Edward Kuan Hsiung | Director | Grant(A) | 5K | — | $0 |
| Nov 27, 2024 | Gough Walter Michael | Director | Grant(A) | 5K | — | $0 |
| Nov 27, 2024 | Yu Chris Chang | Director | Grant(A) | 5K | — | $0 |
| Feb 9, 2024 | Doan Trung T | Chairman and CEO, Director, 10% Owner | Conversion(C) | 630K | $1.27 | $800K |
| Jan 8, 2024 | J.R. Simplot Co | 10% Owner | Conversion(C) | 1.1M | $1.31 | $1.4M |
| Jan 8, 2024 | J.R. Simplot Co | 10% Owner | Other(J) | 305K | $1.31 | $400K |
| Jan 8, 2024 | J.R. Simplot Co | 10% Owner | Conversion(C) | 0 | — | $0 |
| Jan 8, 2024 | Simplot Taiwan Inc. | 10% Owner | Conversion(C) | 1.1M | $1.31 | $1.4M |
| Jan 8, 2024 | Simplot Taiwan Inc. | 10% Owner | Other(J) | 305K | $1.31 | $400K |
| Jan 8, 2024 | Simplot Taiwan Inc. | 10% Owner | Conversion(C) | 0 | — | $0 |
| Jan 8, 2024 | Simplot Scott R. | Director, 10% Owner | Other(J) | 305K | $1.31 | $400K |
| Jan 8, 2024 | Simplot Scott R. | Director, 10% Owner | Conversion(C) | 1.1M | $1.31 | $1.4M |
| Jan 8, 2024 | Simplot Scott R. | Director, 10% Owner | Conversion(C) | 0 | — | $0 |
| Jan 8, 2024 | Doan Trung T | Chairman and CEO, Director, 10% Owner | Conversion(C) | 178K | $1.31 | $233K |
| Jan 8, 2024 | Doan Trung T | Chairman and CEO, Director, 10% Owner | Conversion(C) | 233K | — | $0 |
| Jul 7, 2023 | Hsieh Edward Kuan Hsiung | Director | Grant(A) | 5K | — | $0 |
| Jul 7, 2023 | Gough Walter Michael | Director | Grant(A) | 5K | — | $0 |
| Apr 25, 2023 | Lee Hsin-Liang Christopher | Chief Financial Officer | Grant(A) | 8K | — | $0 |
| Nov 7, 2022 | Hsieh Edward Kuan Hsiung | Director | Grant(A) | 5K | — | $0 |
| Nov 7, 2022 | Gough Walter Michael | Director | Grant(A) | 5K | — | $0 |
| Nov 7, 2022 | Lee Roger | Director | Grant(A) | 5K | — | $0 |
| Nov 12, 2021 | Hsieh Edward Kuan Hsiung | Director | Grant(A) | 5K | — | $0 |
| Nov 12, 2021 | Gough Walter Michael | Director | Grant(A) | 5K | — | $0 |
| Nov 12, 2021 | Lee Roger | Director | Grant(A) | 5K | — | $0 |
| Nov 12, 2021 | Lee Hsin-Liang Christopher | Chief Financial Officer | Grant(A) | 8K | — | $0 |
| Feb 9, 2021 | Lee Hsin-Liang Christopher | CFO | Sell(S) | 12K | $5.00 | $58K |
| Nov 12, 2020 | Hsieh Edward Kuan Hsiung | Director | Grant(A) | 5K | — | $0 |
| Nov 12, 2020 | Lee Hsin-Liang Christopher | CFO | Grant(A) | 2K | — | $0 |
| Nov 12, 2020 | Gough Walter Michael | Director | Grant(A) | 5K | — | $0 |
| Nov 12, 2020 | Lee Roger | Director | Grant(A) | 5K | — | $0 |
| May 26, 2020 | J.R. Simplot Co | 10% Owner | Conversion(C) | 100K | $3.00 | $300K |
| May 26, 2020 | J.R. Simplot Co | 10% Owner | Conversion(C) | 100K | $3.00 | $300K |
| May 26, 2020 | Simplot Taiwan Inc. | 10% Owner | Conversion(C) | 0 | — | $0 |
| May 26, 2020 | Simplot Scott R. | Director, 10% Owner | Conversion(C) | 100K | $3.00 | $300K |
| May 26, 2020 | Simplot Scott R. | Director, 10% Owner | Conversion(C) | 100K | $3.00 | $300K |
| May 26, 2020 | Simplot Scott R. | Director, 10% Owner | Conversion(C) | 0 | $300,000.00as filed | — |
| May 26, 2020 | J.R. Simplot Co | 10% Owner | Conversion(C) | 0 | $300,000.00as filed | — |
| May 25, 2020 | Doan Trung T | Chairman and CEO, Director, 10% Owner | Conversion(C) | 100K | $3.00 | $300K |
| May 25, 2020 | Doan Trung T | Chairman and CEO, Director, 10% Owner | Conversion(C) | 0 | — | $0 |
| Feb 7, 2020 | J.R. Simplot Co | 10% Owner | Other(J) | 500K | — | $0 |
| Feb 7, 2020 | J.R. Simplot Co | 10% Owner | Other(J) | 500K | — | $0 |
| Feb 7, 2020 | Simplot Scott R. | Director, 10% Owner | Other(J) | 500K | — | $0 |
| Feb 7, 2020 | Simplot Scott R. | Director, 10% Owner | Other(J) | 500K | — | $0 |
| Feb 7, 2020 | Simplot Taiwan Inc. | 10% Owner | Other(J) | 500K | — | $0 |
| Feb 7, 2020 | Simplot Taiwan Inc. | 10% Owner | Other(J) | 1.5M | — | $0 |
| Feb 7, 2020 | J.R. Simplot Co | 10% Owner | Other(J) | 1.5M | $1,500,000.00as filed | — |
| Feb 7, 2020 | Simplot Scott R. | Director, 10% Owner | Other(J) | 1.5M | $1,500,000.00as filed | — |
| Feb 7, 2020 | Simplot Scott R. | Director, 10% Owner | Other(J) | 1.5M | $1,500,000.00as filed | — |
| Feb 7, 2020 | J.R. Simplot Co | 10% Owner | Other(J) | 1.5M | $1,500,000.00as filed | — |
| Jan 10, 2020 | Lee Hsin-Liang Christopher | CFO | Grant(A) | 8K | — | $0 |
| Dec 10, 2019 | Doan Trung T | Chairman and CEO, Director, 10% Owner | Buy(P) | 0 | $500,000.00as filed | — |
| Nov 25, 2019 | J.R. Simplot Co | 10% Owner | Buy(P) | 500K | $3.00 | $1.5M |
| Nov 25, 2019 | Simplot Scott R. | Director, 10% Owner | Buy(P) | 500K | $3.00 | $1.5M |
| Nov 25, 2019 | Simplot Scott R. | Director, 10% Owner | Buy(P) | 1.5M | $1,500,000.00as filed | — |
| Nov 25, 2019 | J.R. Simplot Co | 10% Owner | Buy(P) | 1.5M | $1,500,000.00as filed | — |
| Sep 5, 2019 | Hsieh Edward Kuan Hsiung | Director | Grant(A) | 3K | — | $0 |
| Sep 5, 2019 | Gough Walter Michael | Director | Grant(A) | 3K | — | $0 |
| Sep 5, 2019 | Lee Roger | Director | Grant(A) | 3K | — | $0 |
| Jul 10, 2018 | Hsieh Edward Kuan Hsiung | Director | Grant(A) | 3K | — | $0 |
| Jul 10, 2018 | Gough Walter Michael | Director | Grant(A) | 3K | — | $0 |
| Jul 10, 2018 | Gough Walter Michael | Director | Grant(A) | 3K | — | $0 |
| Jul 10, 2018 | Lee Roger | Director | Grant(A) | 3K | — | $0 |
| Jul 10, 2018 | Lee Roger | Director | Grant(A) | 3K | — | $0 |
| Jan 31, 2018 | SemiLEDs Corp | CFO | Grant(A) | 6K | — | $0 |
| Nov 21, 2017 | Lee Roger | Director | Grant(A) | 3K | — | $0 |
| Mar 31, 2017 | Hsieh Edward Kuan Hsiung | Director | Grant(A) | 3K | — | $0 |
| Mar 31, 2017 | Gough Walter Michael | Director | Grant(A) | 3K | — | $0 |
| Jun 22, 2016 | del Prado Arthur H | Director | Disposed to issuer(D) | 3K | — | $0 |
| Apr 12, 2016 | del Prado Arthur H | Director | Grant(A) | 25K | — | $0 |
| Apr 12, 2016 | Hsieh Edward Kuan Hsiung | Director | Grant(A) | 25K | — | $0 |
| Apr 12, 2016 | Gough Walter Michael | Director | Grant(A) | 25K | — | $0 |
| Oct 16, 2015 | Tuttle Mark Ewing | GM of SemiLEDs Optoelectronics | Disposed to issuer(D) | 259K | — | $0 |
| Aug 22, 2015 | Lee Hsin-Liang Christopher | Chief Financial Officer | Grant(A) | 25K | — | $0 |
| May 7, 2015 | del Prado Arthur H | Director | Grant(A) | 25K | — | $0 |
| May 7, 2015 | Hsieh Edward Kuan Hsiung | Director | Grant(A) | 25K | — | $0 |
| Jan 26, 2015 | Tuttle Mark Ewing | GM of SemiLEDs Optoelectronics | Sell(S) | 12K | $1.35 | $16K |
| Jan 9, 2015 | Lee Hsin-Liang Christopher | Chief Financial Officer | Grant(A) | 30K | — | $0 |
| May 9, 2014 | Lin Chen-Hao Timothy | Chief Financial Officer | Grant(A) | 25K | — | $0 |
| May 9, 2014 | Tuttle Mark Ewing | GM of SemiLEDs Optoelectronics | Grant(A) | 49K | — | $0 |
| May 9, 2014 | Tuttle Mark Ewing | GM of SemiLEDs Optoelectronics | Grant(A) | 146K | — | $0 |
| May 9, 2014 | Doan Trung T | Chairman and CEO, Director, 10% Owner | Grant(A) | 146K | — | $0 |
| May 9, 2014 | Doan Trung T | Chairman and CEO, Director, 10% Owner | Grant(A) | 49K | — | $0 |
| May 8, 2014 | Doan Trung T | Chairman and CEO, Director, 10% Owner | Buy(P) | 20K | $1.02 | $20K |
| Apr 21, 2014 | del Prado Arthur H | Director | Grant(A) | 25K | — | $0 |
| Apr 21, 2014 | Hsieh Edward Kuan Hsiung | Director | Grant(A) | 25K | — | $0 |
| Apr 21, 2014 | Lau Jack | Director | Grant(A) | 25K | — | $0 |
| Apr 17, 2014 | Tuttle Mark Ewing | GM of SemiLEDs Optoelectronics | Buy(P) | 1K | $1.09 | $1K |
| Apr 17, 2014 | Tuttle Mark Ewing | GM of SemiLEDs Optoelectronics | Buy(P) | 11K | $1.10 | $12K |
| Apr 17, 2014 | Tuttle Mark Ewing | GM of SemiLEDs Optoelectronics | Buy(P) | 200 | $1.09 | $218 |
| Apr 5, 2013 | Doan Trung T | Chairman and CEO, Director, 10% Owner | Grant(A) | 200K | — | $0 |
| Apr 5, 2013 | Tuttle Mark Ewing | Exec VP of Operations | Grant(A) | 200K | — | $0 |
| Apr 5, 2013 | Cokgor Ilkan | Exec VP of Sales & Marketing | Grant(A) | 200K | — | $0 |
Insider transactions sourced from SEC EDGAR Form 4 filings, normalized within minutes of acceptance. "Buy"/"Sell" mark open-market transactions (codes P/S), the tradeable signal. Awards, option exercises and tax-withholding are shown with their raw code. All data is public domain.
Issuer: SemiLEDs Corp, SEC CIK 0001333822. The symbol on a Form 4 is typed by the filer, so this page follows the issuer with the newest filing under LEDS and shows every filing by that issuer.
Coverage: Form 4 filings indexed 2006-01-02 → 2026-09-08. Earlier history is backfilling; this window widens as it deepens.
Programmatic access via the Arkolith API & MCP server (insider.transactions, insider.company).
Connected pages for LEDS