Casey Heller - 05 Jan 2026 Form 4 Insider Report for Definitive Healthcare Corp. (DH)

Reporting relationship: Chief Financial Officer
Issuer ticker: DH
Reported as of: 05 Jan 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 07 Jan 2026, 16:05:02 UTC
Prior SEC filing: 04 Nov 2025
Next SEC filing: 03 Feb 2026
Source filing: View source filing
Reporting owner signature: /s/ Jonathan Paris, Attorney-in-Fact

Key filing fact

Casey Heller filed Form 4 for Definitive Healthcare Corp. (DH) on 07 Jan 2026.

Key facts

This page summarizes Casey Heller's Form 4 filing for Definitive Healthcare Corp. (DH).
1 reported transaction and 0 derivative rows are listed below.
Accepted by SEC: 07 Jan 2026, 16:05.

Change

Previous filing in this sequence was filed on 04 Nov 2025.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0002052043 Primary reporting owner

Heller Casey

Relationship: Chief Financial Officer
Address: C/O DEFINITIVE HEALTHCARE CORP., 492 OLD CONNECTICUT PATH, SUITE 401, FRAMINGHAM
Signature: /s/ Jonathan Paris, Attorney-in-Fact
Signature date: 07 Jan 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

DH transaction

Class A Common Stock

Award

Transaction value: $0
Shares: +195,313
Change %: +18%
Price: $0.000000
Shares after: 1,275,490
Date: 05 Jan 2026
Ownership: Direct
Footnotes: F1

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 1 footnote

Footnote F1

Represents restricted stock units ("RSUs"), each representing a contingent right to receive one share of the Issuer's Class A Common Stock, par value $0.001 (the "Class A Common Stock"), with 50% of the RSUs vesting on January 1, 2027, followed by vesting in equal quarterly installments over the remaining 12 months thereafter, subject to the Reporting Person's continued service with the Issuer through each such vesting date.