What is Chilukuri Sastry’s Definitive Healthcare share ownership after this Form 4 transaction?

After the reported RSU grant, Sastry’s total direct holdings are 315,984 shares of Class A Common Stock. This figure reflects the position immediately following the award and gives investors a snapshot of his current equity stake in the company.

Definitive Healthcare (DH) director awarded 189,190 RSUs, holdings now 315,984 shares

Filing Impact

(Neutral)

Filing Sentiment

(Neutral)

Form Type

Rhea-AI Filing Summary

Chilukuri Sastry reported acquisition or exercise transactions in this Form 4 filing.

Definitive Healthcare Corp. director Chilukuri Sastry received an equity grant of 189,190 shares of Class A Common Stock in the form of restricted stock units. These RSUs carry no purchase price and increase his direct holdings to 315,984 shares after the award.

Each RSU represents a contingent right to receive one share of Class A Common Stock. The units vest on the earlier of June 4, 2027 or the date of the company’s next annual stockholder meeting, conditioned on his continued service through the vesting date.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Chilukuri Sastry

Role null

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

Holdings After Transaction: Class A Common Stock — 315,984 shares (Direct, null)

Footnotes (1)

[object Object]

Key Figures

RSU grant size: 189,190 shares Post-grant holdings: 315,984 shares Grant price: $0.00 per share +2 more

5 metrics

RSU grant size 189,190 shares Restricted stock units of Class A Common Stock granted on June 4, 2026

Post-grant holdings 315,984 shares Total direct Class A Common Stock held after the RSU award

Grant price $0.00 per share Compensation award, not an open-market purchase

Vesting date June 4, 2027 Vests on earlier of this date or next annual meeting, with continued service

Security type Class A Common Stock Underlying shares deliverable upon RSU vesting and settlement

Key Terms

restricted stock units ("RSUs"), contingent right, vesting, continued service

4 terms

restricted stock units ("RSUs") financial

"Represents restricted stock units ("RSUs"), each representing a contingent right"

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.

contingent right financial

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

vesting financial

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

Vesting is the process by which you earn full ownership of something, like company stock or a retirement benefit, over time. It’s like earning the right to keep a gift piece by piece the longer you stay with a company, making sure employees stay committed before they receive all the benefits.

continued service financial

"subject to the Reporting Person's continued service through the applicable vesting date"

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 06/08/2026 - 04:30 PM Accepted by SEC EDGAR 06/08/2026 - 04:30 PM

FAQ

What did Definitive Healthcare (DH) director Chilukuri Sastry report on this Form 4?

Chilukuri Sastry reported receiving 189,190 restricted stock units of Definitive Healthcare Class A Common Stock. These RSUs are a stock-based compensation award and increase his direct holdings to 315,984 shares after the transaction recorded on June 4, 2026.

How many Definitive Healthcare shares did Chilukuri Sastry acquire in this grant?

He acquired 189,190 restricted stock units, each representing one share of Class A Common Stock. The grant price is shown as $0.00 per share because this is a compensation award rather than an open-market purchase of Definitive Healthcare stock.

What are the vesting terms of Chilukuri Sastry’s RSU award from Definitive Healthcare (DH)?

The RSUs vest on the earlier of June 4, 2027 or the date of Definitive Healthcare’s next annual stockholder meeting. Vesting is contingent on Sastry’s continued service with the company through the applicable vesting date, as described in the Form 4 footnote.

Was cash paid for the Definitive Healthcare (DH) RSUs reported by Chilukuri Sastry?

No cash was paid; the Form 4 lists a transaction price of $0.00 per share. This indicates the 189,190 RSUs were granted as a stock-based compensation award rather than purchased in the open market by the reporting director.

Are Chilukuri Sastry’s new Definitive Healthcare RSUs immediately exercisable or settled?

The RSUs are not immediately settled into shares. Each unit represents a contingent right to receive one share of Class A Common Stock, subject to vesting on the earlier of June 4, 2027 or the company’s next annual meeting.

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^*

Chilukuri Sastry

(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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Class A Common Stock	06/04/2026		A		189,190⁽¹⁾	A	$0	315,984	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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)

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)

Source: View Original Filing on SEC EDGAR