Stephen Hochschuler is Director at Alphatec Holdings, Inc. (ATEC). They have made 5 open-market trades across 1 company since 2008, most recently 2026-07-31.
CIK 0001378563
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.
5 open-market purchases totalling $347K since 2008, never a sale. Across 5 scored buys the stock is down 5.3% at ninety days, and 5.5 points behind the S&P over the same stretch.
5 scored purchases · one row per filing · discretionary only
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 100% | 0% | 0% |
| Avg Move | +5.3% | -5.3% | -5.3% |
| Alpha | -4.0% | -5.5% | -5.5% |
| Scored | 5 | 5 | 5 |
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| ATEC | BUY | 2010-08-19 | 2010-09-21 | $2.26 | $226K | +5.3% | -5.3% | -5.3% |
| ATEC | BUY | 2009-03-12 | 2009-04-08 | $1.23 | $37K | +5.3% | -5.3% | -5.3% |
| ATEC | BUY | 2009-03-04 | 2009-04-08 | $1.65 | $33K | +5.3% | -5.3% | -5.3% |
| ATEC | BUY | 2008-12-01 | 2009-01-30 | $1.84 | $18K | +5.3% | -5.3% | -5.3% |
| ATEC | BUY | 2008-12-01 | 2009-03-06 | $1.65 | $33K | +5.3% | -5.3% | -5.3% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.