J. Sanford Miller is Director at VONAGE HOLDINGS CORP (VG). They have made 15 open-market trades across 5 companies since 2007, most recently 2025-07-28.
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 $6.7M since 2007, against 10 sales. Across 5 scored buys the stock is down 0.7% at ninety days, and 1.0 points behind the S&P over the same stretch.
5 scored purchases · one row per filing · discretionary only
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 0% | 0% | 0% |
| Avg Move | -14.1% | -0.7% | -0.7% |
| Alpha | -8.2% | -1.0% | -1.0% |
| Scored | 5 | 5 | 5 |
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 50% | 50% | 38% |
| Avg Move | +4.3% | +19.9% | +20.7% |
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| ZIP | SELL | 2025-07-28 | 2025-07-30 | $4.64 | $27K | -18.1% | +17.6% | +12.2% |
| ISPO | SELL | 2024-05-31 | 2024-06-04 | $4.06 | $9K | -2.4% | -11.2% | +0.5% |
| ISPO | SELL | 2024-02-29 | 2024-03-04 | $5.10 | $326K | -14.2% | -21.1% | -14.8% |
| HNST | SELL | 2023-11-15 | 2023-11-16 | $1.50 | $1.1M | +42.4% | +100.7% | +120.8% |
| ZIP | SELL | 2023-11-13 | 2023-11-15 | $11.89 | $1.1M | +6.3% | +14.0% | +14.5% |
| HNST | SELL | 2023-11-09 | 2023-11-14 | $1.49 | $2.0M | +28.2% | +84.6% | +126.8% |
| ISPO | SELL | 2023-07-12 | 2023-07-14 | $1.05 | $2K | +4.8% | -15.9% | -60.2% |
| ISPO | SELL | 2023-06-12 | 2023-06-14 | $1.06 | $39K | -12.6% | -9.6% | -34.7% |
| CRCM | SELL | 2017-12-12 | 2017-12-14 | $17.50 | $630K | +3.5% | +7.8% | +6.4% |
| CRCM | SELL | 2017-11-08 | 2017-11-13 | $18.78 | $43K | +5.2% | +1.6% | -4.2% |
| VG | BUY | 2007-11-19 | 2007-11-21 | $2.14 | $226K | -14.1% | -0.7% | -0.7% |
| VG | BUY | 2007-03-01 | 2007-03-05 | $5.24 | $382K | -14.1% | -0.7% | -0.7% |
| VG | BUY | 2007-02-26 | 2007-02-28 | $5.32 | $2.7M | -14.1% | -0.7% | -0.7% |
| VG | BUY | 2007-02-23 | 2007-02-28 | $5.40 | $1.1M | -14.1% | -0.7% | -0.7% |
| VG | BUY | 2007-02-21 | 2007-02-23 | $5.41 | $2.3M | -14.1% | -0.7% | -0.7% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.
| ZIP |
| 10,459 |
| $46K |
| ONDK | 6,225 | $11K |
| Total | $162.7M |
Shares reported on the most recent Form 4, priced at the 2024-09-12 close.
| Scored | 8 | 8 | 8 |