🕵️ Diodes Inc /DEL/ ($DIOD)
SEC insider & ownership activity, last 12 months · CIK 29002 · every row links its SEC filing
Over the last 12 months insiders sold $17.0M with no open-market buying against it. Lu Keh Shew sold $7.8M (Nov–Feb). 3 planned sales are pending, the largest $550K (Francis Tang). No red-flag 8-Ks in the window.
Monthly net open-market insider flow, last 12 months (up = net buying)
Insider flow
0 buyers, $0 (0 lots) · 8 sellers, $17.0M (32 lots)
| Insider | Buys | Bought | Sells | Sold | Last |
|---|---|---|---|---|---|
| Lu Keh Shew | 0 | – | 4 | $7.8M | Feb 20, 2026 |
| Francis Tang | 0 | – | 4 | $3.1M | May 29, 2026 |
| Brett R Whitmire | 0 | – | 4 | $2.3M | May 13, 2026 |
| Emily S Yang | 0 | – | 9 | $1.3M | May 27, 2026 |
| Gary Yu | 0 | – | 3 | $716K | May 27, 2026 |
| Jin Zhao | 0 | – | 3 | $708K | May 26, 2026 |
| Kuo-Ting Tsong | 0 | – | 3 | $692K | May 26, 2026 |
| White Richard Dallas | 0 | – | 2 | $319K | May 29, 2026 |
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| Blackrock, Inc. | 14.6% | 13G | Jul 17, 2025 | filing ↗ | |
| FMR LLC | 12.4% | 13G | May 6, 2026 | filing ↗ | |
| Abigail P. Johnson | 12.4% | 13G | May 6, 2026 | filing ↗ | |
| Vanguard Portfolio Management | 8.0% | 13G | Apr 29, 2026 | filing ↗ | |
| Vanguard Capital Management | 5.1% | 13G | Apr 29, 2026 | filing ↗ | |
| State Street Corporation | 5.0% | 13G | May 12, 2026 | filing ↗ | |
| Dimensional Fund Advisors LP | exited | 13G | Jul 14, 2026 | filing ↗ |
Planned insider sales (Form 144)
| Seller | Planned | Approx. sale date | |
|---|---|---|---|
| Francis Tang | $1.7M | May 29, 2026 | filing ↗ |
| White Richard Dallas | $330K | May 29, 2026 | filing ↗ |
| Emily S Yang | $330K | May 27, 2026 | filing ↗ |
| Francis Tang | $550K | May 27, 2026 | filing ↗ |
| Gary Yu | $400K | May 27, 2026 | filing ↗ |
| Jin Zhao | $394K | May 26, 2026 | filing ↗ |
| Francis Tang | $447K | May 26, 2026 | filing ↗ |
| Kuo-Ting Tsong | $169K | May 26, 2026 | filing ↗ |
| Emily S Yang | $215K | May 26, 2026 | filing ↗ |
| Emily S Yang | $194K | May 20, 2026 | filing ↗ |
| Emily S Yang | $203K | May 15, 2026 | filing ↗ |
| Brett R Whitmire | $1.7M | May 13, 2026 | filing ↗ |
| Francis Tang | $393K | May 12, 2026 | filing ↗ |
| Jin Zhao | $283K | May 12, 2026 | filing ↗ |
| Kuo-Ting Tsong | $292K | May 12, 2026 | filing ↗ |
| Emily S Yang | $151K | Feb 24, 2026 | filing ↗ |
| Gary Yu | $140K | Feb 24, 2026 | filing ↗ |
| LU Granchildrens Trust U/A DTD 08/26/2012 | $3.1M | Feb 20, 2026 | filing ↗ |
| Texastac Investments L.p. | $4.3M | Feb 20, 2026 | filing ↗ |
| Brett R Whitmire | $424K | Feb 13, 2026 | filing ↗ |
| Kuo-Ting Tsong | $231K | Feb 13, 2026 | filing ↗ |
| Emily S Yang | $72K | Feb 13, 2026 | filing ↗ |
| LU Granchildrens Trust | $185K | Nov 12, 2025 | filing ↗ |
| Texastac Investments L.p. | $99K | Nov 12, 2025 | filing ↗ |
| Emily S Yang | $56K | Aug 28, 2025 | filing ↗ |
| Brett R Whitmire | $112K | Aug 27, 2025 | filing ↗ |
| Emily S Yang | $53K | Aug 19, 2025 | filing ↗ |
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Officer/director changes (5.02) | Jul 27, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Jul 27, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jul 27, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Jul 15, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jul 15, 2026 | filing ↗ |
| Material agreement (1.01) | Jul 10, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Jul 10, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jul 10, 2026 | filing ↗ |
| Officer/director changes (5.02) | May 11, 2026 | filing ↗ |
| Shareholder vote (5.07) | May 11, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | May 11, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 11, 2026 | filing ↗ |
| Earnings (2.02) | May 7, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | May 7, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 7, 2026 | filing ↗ |
| Earnings (2.02) | May 7, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | May 7, 2026 | filing ↗ |
| Other events (8.01) | May 7, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | May 7, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Apr 16, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 16, 2026 | filing ↗ |
| Auditor change (4.01) | Mar 5, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Mar 5, 2026 | filing ↗ |
| Earnings (2.02) | Feb 10, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Feb 10, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Feb 10, 2026 | filing ↗ |
| Earnings (2.02) | Feb 10, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Feb 10, 2026 | filing ↗ |
| Other events (8.01) | Feb 10, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Feb 10, 2026 | filing ↗ |