Todd C. Chaffee is 10% Owner at Amplitude, Inc. (AMPL). They have made 8 open-market trades across 4 companies since 2008, most recently 2024-03-18.
CIK 0001300134
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.
2 open-market purchases totalling $2.1M since 2008, against 6 sales. Too few scored purchases to measure a record yet.
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 50% | 33% | 50% |
| Avg Move | +0.5% | +3.6% | -14.6% |
| Scored | 6 | 6 | 6 |
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| ISPO | SELL | 2024-03-18 | 2024-03-20 | $4.01 | $4K | +6.7% | +5.1% | +0.8% |
| ZIP | SELL | 2023-09-07 | 2023-09-11 | $14.97 | $4.3M | -13.8% | -20.5% | -7.9% |
| ISPO | SELL | 2023-05-24 | 2023-05-26 | $0.95 | $15K | +14.1% | +0.0% | -20.3% |
| ZIP | SELL | 2023-03-14 | 2023-03-16 | $15.09 | $603K | +5.2% | +18.1% | +13.3% |
| AMPL | SELL | 2021-11-17 | 2021-11-19 | $71.68 | $3.7M | -8.8% | -25.7% | -75.3% |
| AMPL | SELL | 2021-09-29 | 2021-10-01 | $53.77 | $1.0M | -0.4% | +44.7% | +1.6% |
| SNCR | BUY | 2008-09-26 | 2008-09-29 | $10.43 | $2.0M | -12.7% | -3.6% | -3.6% |
| SNCR | BUY | 2008-03-07 | 2008-03-11 | $16.01 | $164K | -12.7% | -3.6% | -3.6% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.