Definitive Healthcare director granted 189K RSUs

Hamood Samuel A reported acquisition or exercise transactions in this Form 4 filing.

Rhea-AI Filing Summary

Hamood Samuel A reported acquisition or exercise transactions in this Form 4 filing.

Definitive Healthcare Corp. director Samuel A. Hamood received a grant of 189,190 restricted stock units, each representing one share of Class A Common Stock at no cash cost. These RSUs vest on the earlier of June 4, 2027 or the company’s next annual stockholder meeting, subject to his continued service.

Following this award, Hamood directly holds 289,396 Class A shares and has an additional 51,582 shares reported as indirectly held through AMHAM DH LLC.

Insider Trade Summary

Grant/Award: 189,190 shares

Grant/Award 2 txns

Insider Hamood Samuel A

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Class A Common Stock	189,190	$0.00	$0.00
holding	Class A Common Stock	--	--	--

Holdings After Transaction: Class A Common Stock — 289,396 shares (Direct); Class A Common Stock — 51,582 shares (Indirect, By AMHAM DH LLC)

Footnotes (1)

1. 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, vesting on the earlier of June 4, 2027 or the date of the Issuer's next annual meeting of stockholders, subject to the Reporting Person's continued service through the applicable vesting date.

Key Figures

RSU grant size: 189,190 RSUs RSU grant price: $0.0000 per share RSU vesting date: June 4, 2027 +2 more

5 metrics

RSU grant size 189,190 RSUs Grant of restricted stock units to director

RSU grant price $0.0000 per share Reported price per RSU granted

RSU vesting date June 4, 2027 Vests earlier of this date or next annual meeting

Direct holdings after grant 289,396 shares Class A Common Stock directly held post-award

Indirect holdings 51,582 shares Class A Common Stock held via AMHAM DH LLC

Key Terms

restricted stock units ("RSUs"), Class A Common Stock, annual meeting of stockholders

3 terms

restricted stock units ("RSUs") financial

"Represents restricted stock units ("RSUs"), each representing a contingent right to receive one share"

Restricted stock units (RSUs) are a company promise to give an employee shares of stock (or cash equivalent) in the future, but only after certain conditions—usually staying with the company for a set time or hitting performance goals—are met. Investors watch RSUs because when they vest they increase the number of shares outstanding and can lead insiders to sell shares, affecting share price, company dilution and the true cost of employee pay.

Class A Common Stock financial

"each representing a contingent right to receive one share of the Issuer's Class A Common Stock"

Class A common stock is a category of a company’s shares that carries a specific set of ownership rights—most commonly defined voting power and claims on dividends—set out in the company’s charter. For investors it matters because the class determines how much influence you have over corporate decisions, the share’s likely dividend and trading behavior, and how it compares in value to other share classes, like choosing a particular seat with different privileges at the company’s decision-making table.

annual meeting of stockholders financial

"vesting on the earlier of June 4, 2027 or the date of the Issuer's next annual meeting of stockholders"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did Definitive Healthcare (DH) report for Samuel A. Hamood?

Definitive Healthcare reported that director Samuel A. Hamood received 189,190 restricted stock units. Each RSU represents one share of Class A Common Stock and was granted at no cash price as part of his equity compensation.

When do Samuel A. Hamood’s 189,190 RSUs at Definitive Healthcare (DH) vest?

The 189,190 RSUs vest on the earlier of June 4, 2027 or Definitive Healthcare’s next annual meeting of stockholders. Vesting also requires Hamood to continue providing service to the company through the applicable vesting date.

How many Definitive Healthcare (DH) shares does Samuel A. Hamood hold after this Form 4?

After the reported grant, Samuel A. Hamood directly holds 289,396 shares of Definitive Healthcare Class A Common Stock. The filing also shows an additional 51,582 shares held indirectly through AMHAM DH LLC associated with him.

Was the Definitive Healthcare (DH) Form 4 for Samuel A. Hamood a stock purchase or sale?

The Form 4 shows a grant of 189,190 restricted stock units to Samuel A. Hamood, not an open-market purchase or sale. It reflects equity compensation rather than a discretionary buy or sell transaction in the market.

What is the price per share for Samuel A. Hamood’s Definitive Healthcare (DH) RSU grant?

The 189,190 restricted stock units were granted with a reported price per share of $0.0000. This indicates a compensation award, where Hamood can receive shares upon vesting without paying a cash exercise price.

What indirect holdings does Samuel A. Hamood report in Definitive Healthcare (DH) stock?

In addition to his direct holdings, Samuel A. Hamood reports 51,582 shares of Definitive Healthcare Class A Common Stock held indirectly. The filing notes these shares are owned through AMHAM DH LLC, indicating an entity-related ownership structure.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 06/09/2026 - 10:05 AM EDT Learn about SEC filing dates

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
Estimated average burden
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^*

Hamood Samuel A

(Last) (First) (Middle)

C/O DEFINITIVE HEALTHCARE CORP.

492 OLD CONNECTICUT PATH, SUITE 401

(Street)

FRAMINGHAM MASSACHUSETTS 01701

(City) (State) (Zip)

UNITED STATES

(Country)

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		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/04/2026

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

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

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

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	06/04/2026		A		189,190(1)	A	$0	289,396	D
Class A Common Stock								51,582	I	By AMHAM DH LLC

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 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, vesting on the earlier of June 4, 2027 or the date of the Issuer's next annual meeting of stockholders, subject to the Reporting Person's continued service through the applicable vesting date.

	/s/ Jonathan Paris, Attorney-in-Fact	06/08/2026
	** 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.
* Form 4: SEC 1474 (03-26)