Jin Zhao is VP at DIODES INC /DEL/ (DIOD). They have made 8 open-market trades across 1 company since 2021, most recently 2026-05-26.
CIK 0001848005
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
0 open-market purchases, against 8 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| DIOD | 43,531 | $3.5M |
Shares reported on the most recent Form 4, priced at the 2026-05-27 close.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| DIOD | SELL | 2026-05-26 | 2026-05-27 | $106.86 | $394K | -2.2% | -3.0% | -13.2% |
| DIOD | SELL | 2026-05-12 | 2026-05-13 | $102.36 | $283K | +6.2% | +6.8% | +1.2% |
| DIOD | SELL | 2026-02-02 | 2026-02-04 | $59.19 | $31K | +15.8% | +6.1% | +92.9% |
| DIOD | SELL | 2023-05-26 | 2023-05-26 | $94.88 | $107K | -4.4% | -9.4% | -16.7% |
| DIOD | SELL | 2023-02-28 | 2023-02-28 | $92.89 | $141K | -4.2% | -0.7% | -0.4% |
| DIOD | SELL | 2021-11-10 | 2021-11-12 | $109.83 | $125K | -0.9% | -5.5% | -15.2% |
| DIOD | SELL | 2021-08-24 | 2021-08-25 | $92.30 | $114K | +2.4% | +1.2% | +15.0% |
| DIOD | SELL | 2021-03-11 | 2021-03-12 | $84.06 | $103K | -6.2% | -5.0% | -7.8% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.