Definitive Healthcare Corp. (DH) Insider Ownership

Historic Insider Ownership Trends

As of May 30, 2026, the three largest insider holders of DH are Lauren Young (Director, 62.49Mn shares), Christopher Egan (Director, 62.49Mn shares), International Corp/Ma Advent (Director, 62.49Mn shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares (Direct) Shares (Indirect) Report Date
International Corp/Ma Advent - 0 62,493,676 24 Nov, 2021
Robert W Musslewhite Chief Executive Officer 1,201,638 0 09 Jan, 2024
David M Samuels Chief Legal Officer 23,167 0 16 Sep, 2022
Kathleen A Winters - 119,792 0 09 Jun, 2025
Christopher Egan - 0 62,493,676 24 Nov, 2021
Richard Douglas Booth Chief Financial Officer 652,630 0 05 May, 2025
Samuel A Hamood - 100,206 0 09 Jun, 2025
Vii Management, Llc Sea - 0 26,808,886 24 Nov, 2021
Jonathan Paris Chief Legal Officer 902,854 0 26 Feb, 2026
Lauren Young - 0 62,493,676 24 Nov, 2021
Jeffrey Charles Haywood - 41,934 0 24 Aug, 2023
Kate Marie Shamsuddin Chief Operating Officer 694,149 0 05 Aug, 2025
Joseph Gianni Mirisola Chief Revenue Officer 188,363 0 21 Feb, 2023
Jason Ronald Krantz Interim Ceo 1,213,604 0 03 Apr, 2026
Kevin Coop Chief Executive Officer 5,078,872 0 03 Apr, 2026
Sastry Chilukuri - 126,794 0 09 Jun, 2025
Jonathan Maack President 699,650 0 07 May, 2024
Carrie Lazorchak Chief Revenue Officer 421,528 0 16 Feb, 2024
William Moschella Chief Product Tech Officer 451,302 0 04 Feb, 2025
Benjamin Graboske Evp, Chief Data Officer 1,312,027 0 26 Feb, 2026
Casey Heller Chief Financial Officer 2,007,322 0 26 Feb, 2026

* 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.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
01 Apr, 2026 Jason Ronald Krantz Class A Common Stock D 45,154 $1.09 1,213,604 D F
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 Benjamin Graboske Class A Common Stock A 631,068 $0.00 1,312,027 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 Jason Ronald Krantz Class A Common Stock A 242,719 $0.00 1,258,758 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
24 Feb, 2026 Jonathan Paris Class A Common Stock A 481,505 $0.00 902,854 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
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
01 Feb, 2026 Jason Ronald Krantz Class A Common Stock D 44,545 $2.32 1,016,039 D F
01 Feb, 2026 Casey Heller Class A Common Stock D 1,469 $2.32 1,274,021 D F
05 Jan, 2026 Casey Heller Class A Common Stock A 195,313 $0.00 1,275,490 D A
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