Shing Mao is Director at DIODES INC /DEL/ (DIOD). They have made 5 open-market trades across 1 company since 2006, most recently 2010-03-02.
CIK 0001196528
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 5 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| DIOD | 156,625 | $13.0M |
Shares reported on the most recent Form 4, priced at the 2010-03-03 close.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| DIOD | SELL | 2010-03-02 | 2010-03-03 | $20.93 | $126K | -11.8% | -1.4% | -1.4% |
| DIOD | SELL | 2007-11-29 | 2007-12-03 | $29.74 | $279K | -11.8% | -1.4% | -1.4% |
| DIOD | SELL | 2007-02-12 | 2007-02-13 | $35.70 | $357K | -11.8% | -1.4% | -1.4% |
| DIOD | SELL | 2006-05-18 | 2006-05-18 | $36.43 | $364K | -11.8% | -1.4% | -1.4% |
| DIOD | SELL | 2006-02-09 | 2006-02-09 | $38.60 | $193K | -11.8% | -1.4% | -1.4% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.