Lou Silverman is CEO at QUALITY SYSTEMS INC (QSII). They have made 3 open-market trades across 1 company since 2007, most recently 2026-07-01.
CIK 0001249935
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.
1 open-market purchase totalling $12K since 2015, against 2 sales. Too few scored purchases to measure a record yet.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| STAA | SELL | 2021-08-10 | 2021-08-12 | $145.55 | $5.8M | +0.4% | +1.5% | -17.8% |
| STAA | SELL | 2021-03-01 | 2021-03-03 | $104.78 | $5.0M | +0.3% | +14.8% | +55.0% |
| STAA | BUY | 2015-08-10 | 2015-08-11 | $8.18 | $12K | -4.9% | -0.3% | -0.3% |
| QCOR | SELL · 10b5-1 | 2014-04-07 | 2014-04-09 | $84.57 | $846K | N/A | N/A | N/A |
| QSII | SELL · 10b5-1 | 2007-06-12 | 2007-06-13 | $39.03 | $3.2M | +2.9% | +2.9% | +2.9% |
| QSII | SELL · 10b5-1 | 2007-06-12 | 2007-06-13 | $38.38 | $104K | +2.9% | +2.9% | +2.9% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.