[Form 4] Definitive Healthcare Corp. Insider Trading Activity

Rhea-AI Filing Summary

On 08/01/2025, Definitive Healthcare Corp. (DH) Chief Financial Officer Casey Heller filed a Form 4 reporting a routine tax-withholding transaction. The company withheld 1,244 Class A common shares (transaction code F) at an implied price of $3.74 per share to cover federal taxes triggered by the vesting of previously granted restricted stock units. Following the withholding, Heller still directly owns 1,089,721 shares, preserving the vast majority of his stake. No open-market purchase or discretionary sale occurred, and there were no derivative security movements disclosed. The filing is administrative in nature and does not indicate a change in role, outlook, or insider sentiment.

Insights

Financial Analyst

TL;DR: Routine tax-withholding of 1,244 DH shares by CFO; minimal value, ownership still >1.0 M shares; neutral impact.

The Form 4 shows a standard Code F disposition—shares withheld by the issuer to satisfy payroll taxes on RSU vesting. At $3.74, the gross value is roughly $4.7 K, immaterial versus the CFO’s remaining 1.09 M-share position. Because no discretionary sale occurred and the executive’s stake remains substantial, the filing provides little insight into insider sentiment or company fundamentals. I view the event as non-impactful for valuation or trading decisions.

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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hours per response:			0.5

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

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Heller Casey

(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)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Financial Officer

3. Date of Earliest Transaction (Month/Day/Year)
08/01/2025

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	08/01/2025		F(1)		1,244	D	$3.74	1,089,721	D

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.

Remarks:

Exhibit 24 - Power of Attorney

	/s/ Jonathan Paris, Attorney-in-Fact	08/05/2025
	** 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

How many DH shares did CFO Casey Heller dispose of on 08/01/2025?

The filing shows a withholding of 1,244 Class A common shares.

What transaction code was used in the DH Form 4?

Transaction code F, indicating shares withheld to pay taxes on RSU vesting.

How many Definitive Healthcare shares does the CFO own after the transaction?

After the withholding, Heller beneficially owns 1,089,721 shares directly.

At what price were the withheld DH shares valued?

The shares were valued at $3.74 each.

Does the Form 4 indicate any change in Casey Heller’s role at DH?

No; the filing is limited to a tax-withholding transaction, and Heller remains Chief Financial Officer.