ACV Auctions's three largest insider shareholders as of September 17, 2026 are George Chamoun (Chief Executive Officer, 3.37Mn shares), George Chamoun (Chief Executive Officer, 3.10Mn shares), Venture Partners Ix L.P. Bessemer (TenPercentOwner, 3.00Mn shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | George Chamoun | Chief Executive Officer | 6,461,179 | 0 | 6,461,179 | 40.0% | 06 Jul, 2026 |
| 2 | William Zerella | Chief Financial Officer | 2,012,599 | 0 | 2,012,599 | 12.5% | 06 Jul, 2026 |
| 3 | Venture Partners Ix L.P. Bessemer | TenPercentOwner | 0 | 1,853,665 | 1,853,665 | 11.5% | 14 Sep, 2023 |
| 4 | Vikas Mehta | Chief Operating Officer | 1,482,209 | 0 | 1,482,209 | 9.2% | 06 Jul, 2026 |
| 5 | Michael Waterman | Chief Sales Officer | 1,211,293 | 0 | 1,211,293 | 7.5% | 06 Jul, 2026 |
| 6 | Leanne Fitzgerald | Chief Legal Officer | 1,029,135 | 0 | 1,029,135 | 6.4% | 06 Jul, 2026 |
| 7 | Craig Eric Anderson | Ccdso | 882,517 | 0 | 882,517 | 5.5% | 06 Jul, 2026 |
| 8 | Robert P Goodman | Director | 431,694 | 0 | 431,694 | 2.7% | 29 May, 2026 |
| 9 | Andrew Peer | Vp, Corporate Controller Cao | 255,308 | 0 | 255,308 | 1.6% | 13 Aug, 2026 |
| 10 | Brian J Radecki | Director | 187,916 | 0 | 187,916 | 1.2% | 29 May, 2026 |
| 11 | Brian Hirsch | Director | 127,178 | 0 | 127,178 | 0.8% | 29 May, 2026 |
| 12 | Kirsten Castillo | Director | 105,714 | 0 | 105,714 | 0.7% | 29 May, 2026 |
| 13 | Rene F Jones | Director | 65,714 | 0 | 65,714 | 0.4% | 29 May, 2026 |
| 14 | Eileen A Kamerick | Director | 47,236 | 0 | 47,236 | 0.3% | 29 May, 2026 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 11 Aug, 2026 | Andrew Peer | Vp, Corporate Controller Cao | Acquired A | 100,672 | $0.00 | $0 | 194,924 | Direct |
| 01 Jul, 2026 | Craig Eric Anderson | Ccdso | Disposed F | 5,185 | $7.29 | $37.80K | 488,966 | Direct |
| 01 Jul, 2026 | Michael Waterman | Chief Sales Officer | Disposed F | 8,824 | $7.29 | $64.33K | 816,604 | Direct |
| 01 Jul, 2026 | Leanne Fitzgerald | Chief Legal Officer | Disposed F | 7,183 | $7.29 | $52.36K | 560,026 | Direct |
| 01 Jul, 2026 | George Chamoun | Chief Executive Officer | Disposed F | 21,281 | $7.29 | $155.14K | 3,398,512 | Direct |
| 01 Jul, 2026 | Vikas Mehta | Chief Operating Officer | Disposed F | 4,487 | $7.29 | $32.71K | 835,600 | Direct |
| 01 Jul, 2026 | William Zerella | Chief Financial Officer | Disposed F | 3,459 | $7.29 | $25.22K | 1,095,181 | Direct |
| 01 Jul, 2026 | Andrew Peer | Vp, Corporate Controller Cao | Disposed F | 673 | $7.29 | $4.91K | 97,127 | Direct |
| 01 Jul, 2026 | Craig Eric Anderson | Ccdso | Disposed F | 3,645 | $7.29 | $26.57K | 485,321 | Direct |
| 01 Jul, 2026 | George Chamoun | Chief Executive Officer | Disposed F | 10,582 | $7.29 | $77.14K | 3,387,930 | Direct |
| 01 Jul, 2026 | Vikas Mehta | Chief Operating Officer | Disposed F | 6,382 | $7.29 | $46.52K | 829,218 | Direct |
| 01 Jul, 2026 | William Zerella | Chief Financial Officer | Disposed F | 4,481 | $7.29 | $32.67K | 1,090,700 | Direct |
| 01 Jul, 2026 | Andrew Peer | Vp, Corporate Controller Cao | Disposed F | 630 | $7.29 | $4.59K | 96,497 | Direct |
| 01 Jul, 2026 | Leanne Fitzgerald | Chief Legal Officer | Disposed F | 3,553 | $7.29 | $25.90K | 556,473 | Direct |
| 01 Jul, 2026 | Michael Waterman | Chief Sales Officer | Disposed F | 4,365 | $7.29 | $31.82K | 812,239 | Direct |
| 01 Jul, 2026 | Craig Eric Anderson | Ccdso | Disposed F | 4,430 | $7.29 | $32.29K | 480,891 | Direct |
| 01 Jul, 2026 | Michael Waterman | Chief Sales Officer | Disposed F | 3,459 | $7.29 | $25.22K | 808,780 | Direct |
| 01 Jul, 2026 | Vikas Mehta | Chief Operating Officer | Disposed F | 12,776 | $7.29 | $93.14K | 816,442 | Direct |
| 01 Jul, 2026 | William Zerella | Chief Financial Officer | Disposed F | 9,060 | $7.29 | $66.05K | 1,081,640 | Direct |
| 01 Jul, 2026 | George Chamoun | Chief Executive Officer | Disposed F | 9,422 | $7.29 | $68.69K | 3,378,508 | Direct |