Kate Marie Shamsuddin

CIK: 0001878756

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)0 (0.0%)

Position reduction

Option Exercises (M)0 (0.0%)

Derivative conversions

Awards (A)3 (25.0%)

Compensation grants

Other (G, F, J, C, D, …)9 (75.0%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (1)

Definitive Healthcare Corp.

Officer

Discretionary Trading P&L

Holdings

Transaction History (12 total)

DH
Definitive Healthcare Corp.
Aug 1, 2025
Tax Payment(F)
Direct
4.7K shares at avg. $3.74$18K
DH
Definitive Healthcare Corp.
Jun 14, 2025
Tax Payment(F)
Direct
1K shares at avg. $3.65$4K
DH
Definitive Healthcare Corp.
May 1, 2025
Tax Payment(F)
Direct
4.6K shares at avg. $2.75$13K
DH
Definitive Healthcare Corp.
Apr 28, 2025
Award(A)
Direct
243.4K shares-
DH
Definitive Healthcare Corp.
Mar 14, 2025
Tax Payment(F)
Direct
1K shares at avg. $2.59$3K
DH
Definitive Healthcare Corp.
Feb 1, 2025
Tax Payment(F)
Direct
16.3K shares at avg. $4.86$79K
DH
Definitive Healthcare Corp.
Jan 21, 2025
Tax Payment(F)
Direct
5.3K shares at avg. $4.41$24K
DH
Definitive Healthcare Corp.
Jan 21, 2025
Award(A)
Direct
56.2K shares-
DH
Definitive Healthcare Corp.
Dec 14, 2024
Tax Payment(F)
Direct
1K shares at avg. $4.49$5K
DH
Definitive Healthcare Corp.
Nov 1, 2024
Tax Payment(F)
Direct
2.5K shares at avg. $4.18$10K
DH
Definitive Healthcare Corp.
Sep 29, 2024
Award(A)
Direct
113.4K shares-
DH
Definitive Healthcare Corp.
Sep 14, 2024
Tax Payment(F)
Direct
1K shares at avg. $4.44$5K

		Type	Shares	Price		Ownership
Aug 1, 2025	DH Definitive Healthcare Corp.	Tax Payment(F)	4,741	$3.74	$17,731	Direct
Jun 14, 2025	DH Definitive Healthcare Corp.	Tax Payment(F)	1,012	$3.65	$3,694	Direct
May 1, 2025	DH Definitive Healthcare Corp.	Tax Payment(F)	4,595	$2.75	$12,636	Direct
Apr 28, 2025	DH Definitive Healthcare Corp.	Award(A)	243,446	-	-	Direct
Mar 14, 2025	DH Definitive Healthcare Corp.	Tax Payment(F)	1,012	$2.59	$2,621	Direct
Feb 1, 2025	DH Definitive Healthcare Corp.	Tax Payment(F)	16,342	$4.86	$79,422	Direct
Jan 21, 2025	DH Definitive Healthcare Corp.	Tax Payment(F)	5,331	$4.41	$23,510	Direct
Jan 21, 2025	DH Definitive Healthcare Corp.	Award(A)	56,221	-	-	Direct
Dec 14, 2024	DH Definitive Healthcare Corp.	Tax Payment(F)	1,044	$4.49	$4,688	Direct
Nov 1, 2024	DH Definitive Healthcare Corp.	Tax Payment(F)	2,506	$4.18	$10,475	Direct
Sep 29, 2024	DH Definitive Healthcare Corp.	Award(A)	113,379	-	$0	Direct
Sep 14, 2024	DH Definitive Healthcare Corp.	Tax Payment(F)	1,044	$4.44	$4,635	Direct

1-12 of 12 transactions

About Shamsuddin Kate Marie

Shamsuddin Kate Marie (SEC CIK 0001878756) files insider reports with the SEC as CHIEF OPERATING OFFICER of Definitive Healthcare Corp. (DH).

Signal8 holds 10 ownership filings by Shamsuddin Kate Marie, all Form 4s, filed between Sep 17, 2024 and Aug 5, 2025. Those filings report 12 transactions, from Sep 14, 2024 to Aug 1, 2025. Signal8's Form 4 history starts in Sep 2024.

The business address on Shamsuddin Kate Marie's filings is in FRAMINGHAM, MA.

Recent filings by Shamsuddin Kate Marie

Aug 1, 2025: Tax withholding of DH shares (Form 4, code F).
Jun 14, 2025: Tax withholding of DH shares (Form 4, code F).
May 1, 2025: Tax withholding of DH shares (Form 4, code F).
Apr 28, 2025: Grant or award of DH shares (Form 4, code A).
Mar 14, 2025: Tax withholding of DH shares (Form 4, code F).

Other insiders filing for Definitive Healthcare Corp. (DH)

Ritchey Clay Brian, Chief Executive Officer
Heller Casey, Chief Financial Officer
Paris Jonathan, Chief Legal Officer
Krantz Jason Ronald, Director
Coop Kevin, Chief Executive Officer
Hamood Samuel A, Director

How to read Form 4 transaction codes