LEDS — SemiLEDs Corp
Price · 2024-08-26 → 2026-08-21
499 daily closes shownAnonymous view is capped at two years of history. A free account extends it to five, and Pro opens the whole archive back to 2016-04-18.
Performance
Technicals
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Measured signals that fired on LEDS
| date | signal | measured base rate |
|---|---|---|
| 2026-06-16 | Short volume far above its own normal short | -0.76% over 21 days · t = -2.79 · n = 5,897 statistically distinguishable from its control group |
Excess return against a matched control group, on a point-in-time universe that includes delisted companies. Most families do not survive that. How the measurement works →
Insider transactions (Form 4)
| date | insider | what | shares | price | value |
|---|---|---|---|---|---|
| 2025-11-27 | Yu Chris Chang Director | Grant or award 10b5-1 plan | 5.0K | 0.00 | 0 |
| 2025-11-27 | Gough Walter Michael Director | Grant or award 10b5-1 plan | 5.0K | 0.00 | 0 |
| 2025-11-27 | Hsieh Edward Kuan Hsiung Director | Grant or award 10b5-1 plan | 5.0K | 0.00 | 0 |
| 2025-07-10 | Lee Hsin-Liang Christopher Chief Financial Officer | Grant or award | 8.0K | 0.00 | 0 |
| 2025-02-28 | Simplot Scott R. Director | Other Acquisition/Disposition | 722.9K | 1.66 | 1.2M |
| 2025-02-28 | J.R. Simplot Co | Other Acquisition/Disposition | 722.9K | 1.66 | 1.2M |
| 2025-02-28 | Simplot Taiwan Inc. | Other Acquisition/Disposition | 722.9K | 1.66 | 1.2M |
| 2025-02-28 | DOAN TRUNG T Chairman and CEO | Other Acquisition/Disposition 10b5-1 plan | 241.0K | 1.66 | 400.0K |
| 2024-11-27 | Yu Chris Chang Director | Grant or award 10b5-1 plan | 5.0K | 0.00 | 0 |
| 2024-11-27 | Gough Walter Michael Director | Grant or award 10b5-1 plan | 5.0K | 0.00 | 0 |
Open-market purchases (code P) are the informative ones. Grants, option exercises and tax withholding are compensation mechanics, not decisions. How to read a Form 4 →
Largest institutional holders
| manager | value | shares |
|---|---|---|
| RENAISSANCE TECHNOLOGIES LLC | 77.1K | 61.7K |
| CITADEL ADVISORS LLC | 27.5K | 22.0K |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 25.7K | 20.5K |
| XTX Topco Ltd | 16.9K | 13.5K |
| Schonfeld Strategic Advisors LLC | 12.6K | 10.1K |
| SHP Wealth Management | 56 | 45 |
| UBS Group AG | 48 | 38 |
| SBI Securities Co., Ltd. | 6 | 5 |
| Caitong International Asset Management Co., Ltd | 1 | 1 |
13F positions as of 2026-03-31, filed up to 45 days after quarter end. Long-only US equity — shorts and derivatives never appear. What 13F does and does not show →
Latest SEC filings
| form | filed | period | |
|---|---|---|---|
| 8-K | 2026-07-27 | 2026-07-27 | on EDGAR ↗ |
| DEFA14A | 2026-07-15 | — | on EDGAR ↗ |
| DEF 14A | 2026-07-15 | 2026-07-15 | on EDGAR ↗ |
| ARS | 2026-07-15 | 2025-08-31 | on EDGAR ↗ |
| 8-K | 2026-07-15 | 2026-07-15 | on EDGAR ↗ |
| 8-K/A | 2026-07-15 | 2026-07-14 | on EDGAR ↗ |
| 10-Q | 2026-07-14 | 2026-05-31 | on EDGAR ↗ |
| 8-K | 2026-07-14 | 2026-07-14 | on EDGAR ↗ |
Short selling
This is off-exchange short volume, not short interest: it is flow, not position, and 40–50% is normal because market makers short to fill your buy. Why that number misleads →
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