Xiaoxiong Zhang is 10% at SUPERCONDUCTOR TECHNOLOGIES INC (SCON). They have made 4 open-market trades across 1 company since 2009, most recently 2009-09-10.
CIK 0001441469
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 4 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| SCON | 2,940,361 | $26.1M |
Shares reported on the most recent Form 4, priced at the 2009-09-11 close.
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.