As of April 22, 2026, Definitive Healthcare's top three insider holders are Lauren Young (Director, 62.49Mn shares), International Corp/Ma Advent (Director, 62.49Mn shares), Vii Management, Llc Sea (Director, 26.81Mn shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| International Corp/Ma Advent | - | 0 | 62,493,676 | 24 Nov, 2021 |
| Lauren Young | - | 0 | 62,493,676 | 24 Nov, 2021 |
| Vii Management, Llc Sea | - | 0 | 26,808,886 | 24 Nov, 2021 |
| Vii Management, Llc Sea | - | 0 | 16,741,337 | 15 May, 2023 |
| Vii Management, Llc Sea | - | 0 | 13,843,158 | 24 Aug, 2023 |
| Kevin Coop | Chief Executive Officer | 5,078,872 | 0 | 03 Apr, 2026 |
| Vii Management, Llc Sea | - | 0 | 2,791,929 | 24 Nov, 2021 |
| Casey Heller | Chief Financial Officer | 2,007,322 | 0 | 26 Feb, 2026 |
| Vii Management, Llc Sea | - | 0 | 1,743,478 | 15 May, 2023 |
| Vii Management, Llc Sea | - | 0 | 1,441,657 | 24 Aug, 2023 |
| Benjamin Graboske | Evp, Chief Data Officer | 1,312,027 | 0 | 26 Feb, 2026 |
| Jason Ronald Krantz | Interim Ceo | 1,213,604 | 0 | 03 Apr, 2026 |
| Robert W Musslewhite | Chief Executive Officer | 1,201,638 | 0 | 09 Jan, 2024 |
| Jonathan Paris | Chief Legal Officer | 902,854 | 0 | 26 Feb, 2026 |
| Jonathan Maack | President | 699,650 | 0 | 07 May, 2024 |
| Kate Marie Shamsuddin | Chief Operating Officer | 694,149 | 0 | 05 Aug, 2025 |
| Richard Douglas Booth | Chief Financial Officer | 652,630 | 0 | 05 May, 2025 |
| William Moschella | Chief Product Tech Officer | 451,302 | 0 | 04 Feb, 2025 |
| Jason Ronald Krantz | - | 0 | 450,000 | 09 Nov, 2022 |
| Carrie Lazorchak | Chief Revenue Officer | 421,528 | 0 | 16 Feb, 2024 |
| Jason Ronald Krantz | - | 414,104 | 0 | 18 Dec, 2023 |
| Richard Douglas Booth | Chief Financial Officer | 252,378 | 0 | 18 Dec, 2023 |
| Joseph Gianni Mirisola | Chief Revenue Officer | 188,363 | 0 | 21 Feb, 2023 |
| Joseph Gianni Mirisola | Chief Revenue Officer | 185,198 | 0 | 18 Sep, 2023 |
| Kate Marie Shamsuddin | Chief Product Officer | 184,106 | 0 | 18 Dec, 2023 |
| Sastry Chilukuri | - | 126,794 | 0 | 09 Jun, 2025 |
| Kathleen A Winters | - | 119,792 | 0 | 09 Jun, 2025 |
| Jeffrey Charles Haywood | - | 41,934 | 0 | 24 Aug, 2023 |
| David M Samuels | Chief Legal Officer | 23,167 | 0 | 16 Sep, 2022 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 01 Apr, 2026 | Kevin Coop | Class A Common Stock | D | 37,593 | $1.09 | 5,078,872 | D | F |
| 01 Apr, 2026 | Jason Ronald Krantz | Class A Common Stock | D | 45,154 | $1.09 | 1,213,604 | D | F |
| 01 Mar, 2026 | Kevin Coop | Class A Common Stock | D | 175,524 | $1.28 | 5,116,465 | D | F |
| 24 Feb, 2026 | Jonathan Paris | Class A Common Stock | A | 481,505 | $0.00 | 902,854 | D | A |
| 24 Feb, 2026 | Kevin Coop | Class A Common Stock | A | 1,735,437 | $0.00 | 5,291,989 | D | A |
| 24 Feb, 2026 | Benjamin Graboske | Class A Common Stock | A | 631,068 | $0.00 | 1,312,027 | D | A |
| 24 Feb, 2026 | Casey Heller | Class A Common Stock | A | 733,301 | $0.00 | 2,007,322 | D | A |
| 24 Feb, 2026 | Jason Ronald Krantz | Class A Common Stock | A | 242,719 | $0.00 | 1,258,758 | D | A |
| 01 Feb, 2026 | Casey Heller | Class A Common Stock | D | 1,469 | $2.32 | 1,274,021 | D | F |
| 01 Feb, 2026 | Jason Ronald Krantz | Class A Common Stock | D | 44,545 | $2.32 | 1,016,039 | D | F |
| 05 Jan, 2026 | Casey Heller | Class A Common Stock | A | 195,313 | $0.00 | 1,275,490 | D | A |
| 01 Jan, 2026 | Kevin Coop | Class A Common Stock | D | 28,236 | $2.87 | 3,556,552 | D | F |
| 22 Dec, 2025 | Benjamin Graboske | Class A Common Stock | D | 341,417 | $2.53 | 676,913 | D | F |
| 01 Nov, 2025 | Casey Heller | Class A Common Stock | D | 1,244 | $2.77 | 1,080,177 | D | F |
| 01 Nov, 2025 | Jason Ronald Krantz | Class A Common Stock | D | 18,796 | $2.77 | 1,060,584 | D | F |
| 01 Oct, 2025 | Kevin Coop | Class A Common Stock | D | 37,593 | $3.56 | 3,584,788 | D | F |
| 01 Oct, 2025 | Casey Heller | Class A Common Stock | D | 8,300 | $3.56 | 1,081,421 | D | F |
| 14 Sep, 2025 | Jason Ronald Krantz | Class A Common Stock | D | 4,093 | $4.15 | 1,079,380 | D | F |
| 01 Aug, 2025 | Jason Ronald Krantz | Class A Common Stock | D | 18,796 | $3.74 | 1,083,473 | D | F |
| 01 Aug, 2025 | Kate Marie Shamsuddin | Class A Common Stock | D | 4,741 | $3.74 | 694,149 | D | F |