Derek Bell is VP of Engineering at POWER INTEGRATIONS INC (POWI). They have made 13 open-market trades across 1 company since 2007, most recently 2013-05-16.
CIK 0001182407
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 13 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| POWI | 26,752 | $1.2M |
Shares reported on the most recent Form 4, priced at the 2013-05-17 close.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| POWI | SELL · 10b5-1 | 2013-05-16 | 2013-05-17 | $44.90 | $90K | -9.0% | +0.6% | +0.6% |
| POWI | SELL | 2013-05-09 | 2013-05-10 | $42.53 | $24K | -9.0% | +0.6% | +0.6% |
| POWI | SELL | 2013-05-06 | 2013-05-08 | $42.29 | $49K | -9.0% | +0.6% | +0.6% |
| POWI | SELL · 10b5-1 | 2013-05-03 | 2013-05-07 | $43.90 | $75K | -9.0% | +0.6% | +0.6% |
| POWI | SELL · 10b5-1 | 2013-03-25 | 2013-03-27 | $43.90 | $12K | -9.0% | +0.6% | +0.6% |
| POWI | SELL | 2013-02-11 | 2013-02-13 | $42.71 | $5K | -9.0% | +0.6% | +0.6% |
| POWI | SELL | 2013-02-07 | 2013-02-08 | $44.84 | $305K | -9.0% | +0.6% | +0.6% |
| POWI | SELL · 10b5-1 | 2012-08-06 | 2012-08-08 | $36.90 | $295K | -9.0% | +0.6% | +0.6% |
| POWI | SELL · 10b5-1 | 2012-07-05 | 2012-07-09 | $38.79 | $310K | -9.0% | +0.6% | +0.6% |
| POWI | SELL · 10b5-1 | 2012-06-28 | 2012-06-29 | $36.94 | $37K | -9.0% | +0.6% | +0.6% |
| POWI | SELL · 10b5-1 | 2012-06-21 | 2012-06-22 | $40.18 | $121K | -9.0% | +0.6% | +0.6% |
| POWI | SELL · 10b5-1 | 2012-06-19 | 2012-06-21 | $40.90 | $123K | -9.0% | +0.6% | +0.6% |
| POWI | SELL · 10b5-1 | 2012-06-15 | 2012-06-19 | $38.90 | $78K | -9.0% | +0.6% | +0.6% |
| POWI | SELL · 10b5-1 | 2012-06-14 | 2012-06-15 | $38.24 | $38K | -9.0% | +0.6% | +0.6% |
| POWI | SELL · 10b5-1 | 2012-06-07 | 2012-06-07 | $41.00 | $246K | -9.0% | +0.6% | +0.6% |
| POWI | SELL · 10b5-1 | 2012-05-31 | 2012-06-01 | $40.52 | $243K | -9.0% | +0.6% | +0.6% |
| POWI | SELL · 10b5-1 | 2012-05-29 | 2012-05-30 | $41.43 | $207K | -9.0% | +0.6% | +0.6% |
| POWI | SELL · 10b5-1 | 2012-05-24 | 2012-05-29 | $41.86 | $42K | -9.0% | +0.6% | +0.6% |
| POWI | SELL · 10b5-1 | 2012-05-21 | 2012-05-23 | $41.50 | $622K | -9.0% | +0.6% | +0.6% |
| POWI | SELL · 10b5-1 | 2012-05-14 | 2012-05-15 | $41.82 | $669K | -9.0% | +0.6% | +0.6% |
| POWI | SELL | 2012-05-08 | 2012-05-10 | $41.64 | $24K | -9.0% | +0.6% | +0.6% |
| POWI | SELL · 10b5-1 | 2012-05-07 | 2012-05-09 | $41.67 | $667K | -9.0% | +0.6% | +0.6% |
| POWI | SELL | 2012-05-04 | 2012-05-04 | $42.57 | $21K | -9.0% | +0.6% | +0.6% |
| POWI | SELL · 10b5-1 | 2012-05-04 | 2012-05-08 | $38.90 | $584K | -9.0% | +0.6% | +0.6% |
| POWI | SELL · 10b5-1 | 2012-05-03 | 2012-05-04 | $37.99 | $38K | -9.0% | +0.6% | +0.6% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.