Chieh Chang is Director at OPLINK COMMUNICATIONS INC (OPLK). They have made 11 open-market trades across 2 companies since 2006, most recently 2014-12-23.
CIK 0001244060
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 11 sales. Too few scored purchases to measure a record yet.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| DIOD | SELL | 2014-07-02 | 2014-07-07 | $28.83 | $29K | -11.8% | -1.4% | -1.4% |
| OPLK | SELL | 2011-02-18 | 2011-03-02 | $28.14 | $1.7M | N/A | N/A | N/A |
| OPLK | SELL | 2011-02-03 | 2011-02-04 | $26.09 | $268K | N/A | N/A | N/A |
| OPLK | SELL | 2009-08-25 | 2009-08-27 | $13.51 | $203K | N/A | N/A | N/A |
| OPLK | SELL | 2006-11-22 | 2006-11-27 | $20.05 | $902K | N/A | N/A | N/A |
| OPLK | SELL | 2006-11-20 | 2006-11-21 | $20.11 | $1.1M | N/A | N/A | N/A |
| OPLK | SELL | 2006-11-10 | 2006-11-13 | $20.01 | $1.0M | N/A | N/A | N/A |
| OPLK | SELL | 2006-10-31 | 2006-11-03 | $19.72 | $986K | N/A | N/A | N/A |
| OPLK | SELL | 2006-08-28 | 2006-08-30 | $19.10 | $955K | N/A | N/A | N/A |
| OPLK | SELL | 2006-05-08 | 2006-05-09 | $19.30 | $659K | N/A | N/A | N/A |
| OPLK | SELL | 2006-05-04 | 2006-05-08 | $19.34 | $1.3M | N/A | N/A | N/A |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.