Michael Waterman is Chief Sales Officer at ACV Auctions Inc. (ACVA). They have made 6 open-market trades across 1 company since 2021, most recently 2026-10-01.
CIK 0001851495
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 $1.0M since 2026, against 5 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| ACVA | 785,183 | $8.3M |
Shares reported on the most recent Form 4, priced at the 2026-10-05 close.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| ACVA | BUY | 2026-02-26 | 2026-03-02 | $4.66 | $1.0M | -8.1% | -19.3% | +23.8% |
| ACVA | SELL · 10b5-1 | 2025-07-08 | 2025-07-09 | $16.05 | $1.1M | -9.5% | -17.6% | -43.7% |
| ACVA | SELL · 10b5-1 | 2025-06-10 | 2025-06-12 | $16.75 | $743K | -2.0% | +1.9% | -34.9% |
| ACVA | SELL · 10b5-1 | 2025-05-13 | 2025-05-15 | $17.00 | $3.8M | -1.9% | -7.7% | -32.1% |
| ACVA | SELL · 10b5-1 | 2025-03-25 | 2025-03-27 | $16.10 | $3.7M | -11.6% | +1.7% | +8.3% |
| ACVA | SELL · 10b5-1 | 2025-02-04 | 2025-02-06 | $20.27 | $304K | -1.6% | -37.6% | -25.1% |
| ACVA | SELL · 10b5-1 | 2025-01-07 | 2025-01-10 | $20.46 | $1.6M | +8.7% | +6.2% | -31.2% |
| ACVA | SELL · 10b5-1 | 2024-12-10 | 2024-12-12 | $21.81 | $327K | +3.7% | -0.6% | -31.7% |
| ACVA | SELL · 10b5-1 | 2024-11-12 | 2024-11-14 | $20.91 | $898K | +11.9% | +6.1% | +7.3% |
| ACVA | SELL · 10b5-1 | 2024-10-15 | 2024-10-17 | $18.79 | $676K | -8.4% | +13.0% | +9.2% |
| ACVA | SELL | 2024-10-01 | 2024-10-03 | $19.95 | $642K | -3.1% | -11.4% | +7.6% |
| ACVA | SELL · 10b5-1 | 2024-09-17 | 2024-09-19 | $20.24 | $3.0M | -4.1% | -9.8% | -1.9% |
| ACVA | SELL · 10b5-1 | 2024-07-09 | 2024-07-11 | $17.51 | $922K | +7.4% | +2.3% | +8.2% |
| ACVA | SELL · 10b5-1 | 2024-05-29 | 2024-05-30 | $18.00 | $830K | +0.3% | -2.9% | +2.3% |
| ACVA | SELL · 10b5-1 | 2024-03-05 | 2024-03-07 | $18.47 | $374K | +1.1% | +0.5% | -2.7% |
| ACVA | SELL · 10b5-1 | 2024-01-09 | 2024-01-11 | $13.54 | $133K | -5.7% | +1.6% | +25.5% |
| ACVA | SELL · 10b5-1 | 2023-10-04 | 2023-10-05 | $14.60 | $76K | +3.8% | -0.1% | +0.8% |
| ACVA | SELL · 10b5-1 | 2023-07-25 | 2023-07-27 | $16.66 | $201K | +1.4% | -4.6% | -19.4% |
| ACVA | SELL · 10b5-1 | 2023-07-11 | 2023-07-13 | $17.65 | $382K | -7.2% | -10.6% | -13.4% |
| ACVA | SELL · 10b5-1 | 2023-06-14 | 2023-06-15 | $17.66 | $829K | -4.9% | -1.8% | -13.9% |
| ACVA | SELL · 10b5-1 | 2023-04-05 | 2023-04-06 | $12.10 | $20K | -2.2% | +10.8% | +36.8% |
| ACVA | SELL | 2023-01-10 | 2023-01-12 | $8.44 | $102K | +6.9% | +14.3% | +34.3% |
| ACVA | SELL | 2022-12-27 | 2022-12-29 | $7.52 | $845K | +14.4% | +20.8% | +57.4% |
| ACVA | SELL · 10b5-1 | 2022-05-02 | 2022-05-04 | $12.75 | $37K | -31.3% | -31.0% | -41.4% |
| ACVA | SELL | 2021-07-13 | 2021-07-15 | $23.19 | $4.4M | +14.2% | +5.1% | -2.3% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.