Definitive Healthcare (DH) chair has 45,154 shares withheld for RSU tax obligations

Rhea-AI Filing Summary

Definitive Healthcare Corp. director and executive chairman Jason Ronald Krantz had 45,154 shares of Class A Common Stock withheld on April 1, 2026 at $1.09 per share to cover tax obligations tied to the vesting of previously reported RSUs. This was a tax-withholding disposition, not an open-market sale, and was satisfied by the issuer delivering shares for the liability.

After this event, Krantz directly held 1,213,604 shares of Class A Common Stock. He also beneficially owned an additional 450,000 shares held in trust by DH Holdings (f/k/a Jason R. Krantz 2009 Trust), of which he is the beneficiary.

Insider Trade Summary

2 transactions reported

Mixed 2 txns

Insider Krantz Jason Ronald

Role Director, 10% Owner

Type	Security	Shares	Price	Value
Tax Withholding	Class A Common Stock	45,154	$1.09	$49K
holding	DH Holdings (f/k/a Jason R. Krantz 2009 Trust)	--	--	--

Holdings After Transaction: Class A Common Stock — 1,213,604 shares (Direct); DH Holdings (f/k/a Jason R. Krantz 2009 Trust) — 450,000 shares (Indirect, See Footnote.)

Footnotes (1)

1. The transaction reported 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 RSUs. Amount beneficially owned in trust by DH Holdings (fka Jason R. Krantz 2009 Trust), of which the Reporting Person is the beneficiary.

Key Figures

Tax-withholding shares: 45,154 shares Tax-withholding price: $1.09 per share Direct holdings after transaction: 1,213,604 shares +2 more

5 metrics

Tax-withholding shares 45,154 shares Withheld on April 1, 2026 to cover RSU tax obligations

Tax-withholding price $1.09 per share Value used for withheld Class A Common Stock

Direct holdings after transaction 1,213,604 shares Class A Common Stock held directly by Jason Krantz after withholding

Indirect trust holdings 450,000 shares Beneficially owned in trust by DH Holdings for Jason Krantz

Tax-withholding dispositions count 1 transaction Single F-code tax-withholding disposition reported in Form 4

Key Terms

RSUs, tax withholding obligations, beneficially owned, Class A Common Stock, +1 more

5 terms

RSUs financial

"in connection with the vesting and settlement of previously reported RSUs"

RSUs, or restricted stock units, are a form of company shares given to employees as part of their compensation. They are typically awarded with certain restrictions, such as a waiting period before they can be fully owned or sold, similar to earning a gift that becomes fully yours over time. For investors, RSUs can impact a company's stock offerings and reflect how much the company relies on stock-based incentives to attract and retain talent.

tax withholding obligations financial

"to satisfy the reporting person's tax withholding obligations in connection with the vesting"

beneficially owned financial

"Amount beneficially owned in trust by DH Holdings"

Beneficially owned describes securities or assets where a person has the economic rights and control—such as the right to receive dividends and to direct voting—even if legal title is held in another name. Think of it like having the keys and using a car that’s registered to someone else: you get the benefits and make decisions. Investors care because beneficial ownership reveals who truly controls value and voting power, affecting corporate decisions and takeover dynamics.

Class A Common Stock financial

"The transaction reported represents the withholding of shares of 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.

indirect financial

"ownership_type: indirect, nature_of_ownership: See Footnote."

Form 4 Insider Transactions: What Each Field Means →

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^*

Krantz Jason Ronald

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
04/01/2026

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	04/01/2026		F		45,154(1)	D	$1.09	1,213,604	D
DH Holdings (f/k/a Jason R. Krantz 2009 Trust)								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. The transaction reported 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 RSUs.

2. Amount beneficially owned in trust by DH Holdings (fka Jason R. Krantz 2009 Trust), of which the Reporting Person is the beneficiary.

	/s/ Jonathan Paris, Attorney-in-Fact	04/03/2026
	** 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)

FAQ

What insider transaction did Definitive Healthcare (DH) report for Jason Krantz?

Definitive Healthcare reported that Jason Ronald Krantz had 45,154 Class A shares withheld to satisfy tax obligations from vesting RSUs. This Form 4 event reflects a tax-withholding disposition by the issuer, not an open-market stock sale by Krantz.

Was the Definitive Healthcare (DH) Form 4 transaction an insider sale of shares?

The Form 4 shows a tax-withholding disposition, not a market sale. Shares were withheld by the issuer at $1.09 per share to cover Jason Krantz’s tax liabilities from vesting RSUs, rather than being sold on an exchange to outside buyers.

How many Definitive Healthcare (DH) shares does Jason Krantz hold after this filing?

After the reported transaction, Jason Krantz directly held 1,213,604 shares of Class A Common Stock. In addition, he beneficially owned 450,000 shares held in trust by DH Holdings, a trust where he is identified as the beneficiary.

What price was used for the tax-withholding shares in the DH Form 4?

The tax-withholding disposition was recorded at $1.09 per share for 45,154 Class A shares. This price is used solely to value the shares withheld to satisfy Jason Krantz’s tax obligations arising from the vesting and settlement of previously reported RSUs.

How are DH Holdings trust shares related to Definitive Healthcare (DH) insider ownership?

The filing states that 450,000 shares are beneficially owned in trust by DH Holdings, formerly the Jason R. Krantz 2009 Trust. Jason Krantz is identified as the beneficiary, so these shares are reported as his indirect beneficial ownership alongside his direct holdings.