Over the past 12 months, Definitive Healthcare insiders made no open-market purchases or sales of the stock.
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Vii Management, Llc Sea | Director | 0 | 15,284,815 | 15,284,815 | 46.8% | 24 Aug, 2023 |
| 2 | Kevin Coop | Chief Executive Officer | 4,975,229 | 0 | 4,975,229 | 15.2% | 06 Jul, 2026 |
| 3 | Casey Heller | Chief Financial Officer | 1,785,960 | 0 | 1,785,960 | 5.5% | 05 Oct, 2026 |
| 4 | Jason Ronald Krantz | Interim Ceo | 1,603,376 | 0 | 1,603,376 | 4.9% | 04 Aug, 2026 |
| 5 | Benjamin Graboske | Evp, Chief Data Officer | 1,312,027 | 0 | 1,312,027 | 4.0% | 26 Feb, 2026 |
| 6 | Robert W Musslewhite | Chief Executive Officer | 1,201,638 | 0 | 1,201,638 | 3.7% | 09 Jan, 2024 |
| 7 | Richard Douglas Booth | Chief Financial Officer | 905,008 | 0 | 905,008 | 2.8% | 05 May, 2025 |
| 8 | Kate Marie Shamsuddin | Chief Operating Officer | 878,255 | 0 | 878,255 | 2.7% | 05 Aug, 2025 |
| 9 | Jonathan Paris | Chief Legal Officer | 864,534 | 0 | 864,534 | 2.6% | 05 Oct, 2026 |
| 10 | Jonathan Maack | President | 699,650 | 0 | 699,650 | 2.1% | 07 May, 2024 |
| 11 | William Moschella | Chief Product Tech Officer | 451,302 | 0 | 451,302 | 1.4% | 04 Feb, 2025 |
| 12 | Carrie Lazorchak | Chief Revenue Officer | 421,528 | 0 | 421,528 | 1.3% | 16 Feb, 2024 |
| 13 | Joseph Gianni Mirisola | Chief Revenue Officer | 373,561 | 0 | 373,561 | 1.1% | 18 Sep, 2023 |
| 14 | Sastry Chilukuri | Director | 315,984 | 0 | 315,984 | 1.0% | 08 Jun, 2026 |
| 15 | Scott G Stephenson | Director | 313,314 | 0 | 313,314 | 1.0% | 08 Jun, 2026 |
| 16 | Kathleen A Winters | Director | 308,982 | 0 | 308,982 | 0.9% | 08 Jun, 2026 |
| 17 | Samuel A Hamood | Director | 289,396 | 0 | 289,396 | 0.9% | 08 Jun, 2026 |
| 18 | David Randall Winn | Director | 0 | 275,650 | 275,650 | 0.8% | 10 Aug, 2022 |
| 19 | Christopher Mitchell | Director | 226,126 | 0 | 226,126 | 0.7% | 24 Aug, 2023 |
| 20 | Jill Larsen | Director | 114,751 | 0 | 114,751 | 0.4% | 09 Jun, 2025 |
| 21 | Jeffrey Charles Haywood | Director | 41,934 | 0 | 41,934 | 0.1% | 24 Aug, 2023 |
| 22 | David M Samuels | Chief Legal Officer | 23,167 | 0 | 23,167 | 0.1% | 16 Sep, 2022 |
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 |
|---|---|---|---|---|---|---|---|---|
| 01 Oct, 2026 | Casey Heller | Chief Financial Officer | Disposed F | 12,542 | $0.94 | $11.74K | 1,785,960 | Direct |
| 01 Oct, 2026 | Jonathan Paris | Chief Legal Officer | Disposed F | 7,729 | $0.94 | $7.24K | 864,534 | Direct |
| 01 Sep, 2026 | Casey Heller | Chief Financial Officer | Disposed F | 41,093 | $0.90 | $37.08K | 1,798,502 | Direct |
| 01 Aug, 2026 | Jason Ronald Krantz | Director, TenPercentOwner, Other | Disposed F | 12,166 | $0.68 | $8.30K | 1,189,272 | Direct |
| 01 Aug, 2026 | Casey Heller | Chief Financial Officer | Disposed F | 1,881 | $0.68 | $1.28K | 1,839,595 | Direct |
| 01 Jul, 2026 | Kevin Coop | Chief Executive Officer | Disposed F | 37,593 | $0.80 | $30.07K | 4,975,229 | Direct |
| 01 Jul, 2026 | Jonathan Paris | Chief Legal Officer | Disposed F | 30,591 | $0.80 | $24.47K | 872,263 | Direct |
| 04 Jun, 2026 | Kathleen A Winters | Director | Acquired A | 189,190 | $0.00 | $0 | 308,982 | Direct |
| 04 Jun, 2026 | Sastry Chilukuri | Director | Acquired A | 189,190 | $0.00 | $0 | 315,984 | Direct |
| 04 Jun, 2026 | Samuel A Hamood | Director | Acquired A | 189,190 | $0.00 | $0 | 289,396 | Direct |
| 04 Jun, 2026 | Scott G Stephenson | Director | Acquired A | 189,190 | $0.00 | $0 | 313,314 | Direct |
| 01 Jun, 2026 | Casey Heller | Chief Financial Officer | Disposed F | 164,377 | $0.99 | $162.73K | 1,841,476 | Direct |
| 01 Jun, 2026 | Kevin Coop | Chief Executive Officer | Disposed F | 66,050 | $0.99 | $65.39K | 5,012,822 | Direct |
| 01 May, 2026 | Casey Heller | Chief Financial Officer | Disposed F | 1,469 | $0.99 | $1.45K | 2,005,853 | Direct |
| 01 May, 2026 | Jason Ronald Krantz | Director, TenPercentOwner, Other | Disposed F | 12,166 | $0.99 | $12.04K | 1,201,438 | Direct |
| 01 Apr, 2026 | Kevin Coop | Chief Executive Officer | Disposed F | 37,593 | $1.09 | $40.98K | 5,078,872 | Direct |
| 01 Apr, 2026 | Jason Ronald Krantz | Director, TenPercentOwner, Other | Disposed F | 45,154 | $1.09 | $49.22K | 1,213,604 | Direct |
| 01 Mar, 2026 | Kevin Coop | Chief Executive Officer | Disposed F | 175,524 | $1.28 | $224.67K | 5,116,465 | Direct |
| 24 Feb, 2026 | Jonathan Paris | Chief Legal Officer | Acquired A | 481,505 | $0.00 | $0 | 902,854 | Direct |
| 24 Feb, 2026 | Benjamin Graboske | Evp, Chief Data Officer | Acquired A | 631,068 | $0.00 | $0 | 1,312,027 | Direct |