DIOD (Diodes Inc)
Insider Trading Activity
Every open-market purchase and sale reported by DIOD 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.
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.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-13 | Evan Yu | Director | A | — | — |
| 2026-06-01 | Richard Dallas White | Corporate Secretary | Sell | — | — |
| 2026-06-01 | Francis Tang | Chief Technology Officer | Sell | — | — |
| 2026-05-28 | KEH SHEW LU | — | F | — | — |
| 2026-05-27 | Jin Zhao | President, Diodes Asia | Sell | — | — |
| 2026-05-27 | Gary Yu | President and CEO | MIXED | — | — |
| 2026-05-27 | Emily Yang | SVP Worldwide Sales/Marketing | Sell | — | — |
| 2026-05-27 | Francis Tang | Chief Technology Officer | Sell | — | — |
| 2026-05-27 | Andy Tsong | SVP Worldwide Products Group | Sell | — | — |
| 2026-05-21 | Emily Yang | SVP Worldwide Sales/Marketing | Sell | — | — |
| 2026-05-21 | Gary Yu | President and CEO | G | — | — |
| 2026-05-19 | Emily Yang | SVP Worldwide Sales/Marketing | Sell | — | — |
| 2026-05-13 | Huey-Jen Jenny Su | Director | A | — | — |
| 2026-05-13 | Jin Zhao | President, Diodes Asia | Sell | — | — |
| 2026-05-13 | Elizabeth Bull | Director | A | — | — |
| 2026-05-13 | Button Angie Chen | Director | A | — | — |
| 2026-05-13 | Brett R Whitmire | CFO | Sell | — | — |
| 2026-05-13 | Warren Chen | Director | A | — | — |
| 2026-05-13 | PHILIP J RITTER | Director | A | — | — |
| 2026-05-13 | Gary Yu | President and CEO | A | — | — |
| 2026-05-13 | Andy Tsong | SVP Worldwide Products Group | Sell | — | — |
| 2026-05-13 | Francis Tang | Chief Technology Officer | Sell | — | — |
| 2026-02-26 | Gary Yu | President and CEO | Sell | — | — |
| 2026-02-26 | Emily Yang | SVP Worldwide Sales/Marketing | Sell | — | — |
| 2026-02-24 | KEH SHEW LU | Director | Sell | — | — |
| 2026-02-17 | Brett R Whitmire | CFO | Sell | — | — |
| 2026-02-17 | Andy Tsong | SVP Worldwide Products Group | Sell | — | — |
| 2026-02-17 | Emily Yang | SVP Worldwide Sales/Marketing | Sell | — | — |
| 2026-02-04 | Brett R Whitmire | CFO | MIXED | — | — |
| 2026-02-04 | Gary Yu | President and CEO | MIXED | — | — |
| 2026-02-04 | Andy Tsong | SVP Worldwide Analog Products | MIXED | — | — |
| 2026-02-04 | Francis Tang | Chief Technology Officer | MIXED | — | — |
| 2026-02-04 | Emily Yang | SVP Worldwide Sales/Marketing | MIXED | — | — |
| 2026-02-04 | KEH SHEW LU | Director | F | — | — |
| 2026-02-04 | Jin Zhao | President, Diodes Asia | MIXED | — | — |
| 2025-11-13 | KEH SHEW LU | Director | Sell | — | — |
| 2025-08-28 | Brett R Whitmire | CFO | Sell | — | — |
| 2025-08-28 | Emily Yang | SVP Worldwide Sales/Marketing | Sell | — | — |
| 2025-08-21 | Emily Yang | SVP Worldwide Sales/Marketing | Sell | — | — |
| 2025-07-02 | Andy Tsong | SVP Worldwide Analog Products | F | — | — |
| 2025-05-28 | KEH SHEW LU | Director | F | — | — |
| 2025-05-28 | Gary Yu | President and CEO | F | — | — |
| 2025-05-22 | Emily Yang | SVP Worldwide Sales/Marketing | G | — | — |
| 2025-05-15 | Button Angie Chen | Director | A | — | — |
| 2025-05-15 | Elizabeth Bull | Director | A | — | — |
| 2025-05-15 | Gary Yu | President and CEO | A | — | — |
| 2025-05-15 | Huey-Jen Jenny Su | Director | A | — | — |
| 2025-05-15 | Robert E Feiger | Director | A | — | — |
| 2025-05-15 | Warren Chen | Director | A | — | — |
| 2025-05-15 | KEH SHEW LU | Director | A | — | — |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| — | 10%+ Owner | 7,766,615 | — |
| — | Director | 258,236 | — |
| — | SVP, Operations | 195,144 | — |
| — | Director | 156,625 | — |
| — | Director | 123,629 | — |
| — | President and CEO | 111,779 | — |
| — | Director | 95,005 | — |
| — | Director | 89,233 | — |
| — | VP of Corporate Admin | 89,117 | — |
| — | Chief Technology Officer | 74,303 | — |
| — | SVP Worldwide Sales/Marketing | 66,454 | — |
| — | Director | 61,900 | — |
| — | Director | 50,265 | — |
| — | SVP Worldwide Products Group | 48,170 | — |
| — | Director | 47,600 | — |
| — | CFO | 44,632 | — |
| — | President, Diodes Asia | 43,531 | — |
| — | Corporate Secretary | 42,375 | — |
| — | VP, Analog Bus. Group/Pericom | 28,777 | — |
| — | Vice President | 27,378 | — |
| — | Director | 27,240 | — |
| — | SVP Sales & Marketing | 20,332 | — |
| — | Director | 20,040 | — |
| — | President Asia Operations | 18,717 | — |
| — | VP Packaging Operations | 18,375 | — |
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 DIOD quote page; the site-wide leaderboard is on the insider transactions hub.