Steven Williamson is CTO at ADVANCED PHOTONIX INC (API). They have made 10 open-market trades across 1 company since 2007, most recently 2015-05-08.
CIK 0001326595
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.
10 open-market purchases totalling $291K since 2007, never a sale. Across 10 scored buys the stock is up 12.2% at ninety days, and 12.0 points ahead of the S&P over the same stretch.
10 scored purchases · one row per filing · discretionary only
| Ticker | Shares | Value |
|---|---|---|
| API | 64,000 | $278K |
Shares reported on the most recent Form 4, priced at the 2014-08-22 close.
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 100% | 100% | 100% |
| Avg Move | +19.8% | +12.2% | +12.2% |
| Alpha | -37.8% | +12.0% | +12.0% |
| Scored | 10 | 10 | 10 |
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| API | BUY | 2010-11-30 | 2010-12-02 | $1.17 | $52K | +19.8% | +12.2% | +12.2% |
| API | BUY | 2008-03-19 | 2008-03-20 | $1.31 | $13K | +19.8% | +12.2% | +12.2% |
| API | BUY | 2008-03-18 | 2008-03-19 | $1.31 | $7K | +19.8% | +12.2% | +12.2% |
| API | BUY | 2008-03-13 | 2008-03-14 | $1.42 | $5K | +19.8% | +12.2% | +12.2% |
| API | BUY | 2008-02-21 | 2008-06-03 | $1.31 | $8K | +19.8% | +12.2% | +12.2% |
| API | BUY | 2008-02-20 | 2008-02-21 | $1.50 | $1K | +19.8% | +12.2% | +12.2% |
| API | BUY | 2008-02-19 | 2008-02-20 | $1.47 | $5K | +19.8% | +12.2% | +12.2% |
| API | BUY | 2008-02-14 | 2008-02-19 | $1.46 | $18K | +19.8% | +12.2% | +12.2% |
| API | BUY | 2007-09-06 | 2007-09-07 | $1.83 | $150K | +19.8% | +12.2% | +12.2% |
| API | BUY | 2007-08-20 | 2007-08-22 | $1.41 | $32K | +19.8% | +12.2% | +12.2% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.