[Form 4] Definitive Healthcare Corp. Insider Trading Activity

Rhea-AI Filing Summary

Definitive Healthcare Corp. (DH) insider Jason R. Krantz reported a transaction on 09/14/2025. The filing shows a disposition of 4,093 shares of Class A common stock at $4.15 per share, recorded as a sale to satisfy tax withholding related to vested restricted stock units. After the transaction, Mr. Krantz directly beneficially owns 1,079,380 shares and indirectly owns 450,000 shares held in trust by DH Holdings (formerly the Jason R. Krantz 2009 Trust). The filing was signed by an attorney-in-fact on 09/16/2025.

Positive

• Retains large stake: Direct ownership of 1,079,380 shares plus 450,000 shares indirectly held preserves significant alignment with shareholders.
• Clear disclosure: Footnotes explain the sale was for tax withholding on vested RSUs, providing transparency about the transaction's purpose.

Negative

• Minor dilution of personal holdings: A disposition of 4,093 shares reduced direct holdings, though amount is small relative to total ownership.

Insights

Financial Analyst

TL;DR: Routine tax-withholding sale; large remaining ownership retains alignment with shareholders.

The reported disposition of 4,093 shares at $4.15 appears to be a standard withholding event tied to RSU vesting rather than an open-market sale for liquidity. The reporting person still directly holds 1,079,380 shares and indirectly holds 450,000 shares in trust, representing a substantial ownership stake that preserves alignment with company performance. No derivative transactions or additional dispositions are reported. Impact on float and immediate market supply is minimal given the small size of the sale relative to total holdings.

Corporate Governance Expert

TL;DR: Disclosure consistent with Section 16 requirements; nature of indirect holdings is documented.

The form properly discloses relationship (Director and 10% owner) and specifies that 450,000 shares are held in trust by DH Holdings (f/k/a Jason R. Krantz 2009 Trust), with the reporting person as beneficiary. The explanatory footnotes clarify the tax-withholding nature of the transaction. Filing completeness and signature by attorney-in-fact meet procedural norms. No governance red flags or unexplained related-party transfers are evident from the form alone.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person^*

Krantz Jason Ronald

(Last) (First) (Middle)

C/O DEFINITIVE HEALTHCARE CORP.

492 OLD CONNECTICUT PATH, SUITE 401

(Street)

FRAMINGHAM MA 01701

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Definitive Healthcare Corp. [ DH ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director	X	10% Owner
	Officer (give title below)	X	Other (specify below)
			EXECUTIVE CHAIRMAN

3. Date of Earliest Transaction (Month/Day/Year)
09/14/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Class A Common Stock	09/14/2025		F(1)		4,093	D	$4.15	1,079,380	D
Class A Common Stock								450,000	I	See footnote(2)

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Represents the withholding of shares by the Issuer to satisfy the Reporting Person's tax withholding obligations in connection with the vesting and settlement of previously reported restricted stock units.

2. Amount beneficially owned in trust by DH Holdings (f/k/a Jason R. Krantz 2009 Trust), of which the reporting person is the beneficiary.

	/s/ Maria Borda, Attorney-in-Fact	09/16/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What transaction did Jason R. Krantz report on Form 4 for Definitive Healthcare (DH)?

The filing reports a disposition of 4,093 shares of Class A common stock on 09/14/2025 at a reported price of $4.15 per share.

Why were the shares disposed according to the Form 4?

Footnote 1 states the shares were withheld by the issuer to satisfy the reporting person’s tax withholding obligations in connection with the vesting and settlement of previously reported restricted stock units.

How many shares does Jason R. Krantz beneficially own after the transaction?

After the reported transaction, he directly beneficially owns 1,079,380 shares and indirectly beneficially owns 450,000 shares held in trust.

What is the nature of the indirect holdings reported on the Form 4?

Footnote 2 clarifies the 450,000 shares are beneficially owned in trust by DH Holdings (formerly the Jason R. Krantz 2009 Trust), of which the reporting person is the beneficiary.

When was the Form 4 signed and filed?

The filing shows the signature by attorney-in-fact Maria Borda on 09/16/2025.