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Definitive Healthcare (DH) CFO has shares withheld to cover RSU tax bill

Filing Impact
(High)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Definitive Healthcare Corp.'s Chief Financial Officer Casey Heller reported a routine share disposition tied to taxes rather than a market trade. The company withheld 164,377 shares of Class A common stock at an effective value of $0.99 per share to cover Heller's tax obligations from vesting restricted stock units. After this tax-withholding transaction, Heller directly holds 1,841,476 shares of Class A common stock, indicating a substantial remaining equity position in the company.

Positive

  • None.

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Insider Heller Casey
Role Chief Financial Officer
Type Security Shares Price Value
Tax Withholding Class A Common Stock 164,377 $0.99 $163K
Holdings After Transaction: Class A Common Stock — 1,841,476 shares (Direct, null)
Footnotes (1)
  1. [object Object]
Tax-withholding shares 164,377 shares Shares withheld to cover tax obligations on RSU vesting
Effective value per share $0.99 per share Value used for tax-withholding disposition
Shares held after transaction 1,841,476 shares CFO’s direct Class A common stock holdings following transaction
tax withholding financial
"to satisfy the reporting person's tax withholding obligations in connection with the vesting"
Tax withholding is the practice of taking a portion of a payment—such as wages, dividends, or sale proceeds—before it reaches the recipient and sending that portion to the tax authority as an advance on the recipient’s eventual tax bill. For investors it matters because withholding reduces immediate cash received and affects after‑tax returns, estimated tax payments, and whether you may owe more or receive a refund when taxes are finally calculated, like having a small automatic savings set aside for your tax bill.
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.
Class A Common Stock financial
"security_title": "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.
tax-withholding disposition financial
"transaction_action": "tax-withholding disposition""
A tax-withholding disposition is an event or transaction—such as selling or transferring securities, exercising options, or receiving compensation—that triggers a requirement to hold back part of the payment and remit it to tax authorities. It matters to investors because it reduces the cash they receive immediately and can change the timing and amount of taxable income, like a cashier taking a portion of your sale proceeds to pay taxes before you get the rest.
Form 4 regulatory
"INSIDER FILING DATA (Form 4):"
Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.
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SEC Form 4
FORM 4UNITED 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*
Heller Casey

(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)
Director10% Owner
XOfficer (give title below)Other (specify below)
Chief Financial Officer
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
06/01/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm 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)
CodeVAmount(A) or (D)Price
Class A Common Stock06/01/2026F164,377(1)D$0.991,841,476D
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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount 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.
/s/ Jonathan Paris, Attorney-in-Fact06/03/2026
** Signature of Reporting PersonDate
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 Casey Heller?

Definitive Healthcare reported that CFO Casey Heller had 164,377 shares of Class A common stock withheld by the company. This was to satisfy tax obligations arising from the vesting and settlement of previously granted RSUs, not an open-market sale.

Was Casey Heller’s Definitive Healthcare (DH) transaction an open-market sale?

No, the filing shows a tax-withholding disposition coded “F,” meaning shares were withheld by the issuer. The footnote explains the shares covered Heller’s tax obligations on vesting RSUs, rather than being sold on the open market to outside buyers.

How many Definitive Healthcare (DH) shares were involved in the CFO’s tax withholding?

The transaction involved 164,377 shares of Class A common stock at an effective value of $0.99 per share. These shares were retained by Definitive Healthcare to satisfy CFO Casey Heller’s tax withholding obligations tied to previously reported restricted stock units.

How many Definitive Healthcare (DH) shares does CFO Casey Heller hold after the transaction?

After the reported tax-withholding disposition, CFO Casey Heller directly holds 1,841,476 shares of Definitive Healthcare Class A common stock. This post-transaction figure shows Heller retains a sizable equity stake despite the shares withheld for tax obligations on vested RSUs.

What does transaction code “F” mean in the Definitive Healthcare (DH) Form 4?

Transaction code “F” indicates a payment of exercise price or tax liability by delivering securities. In this Form 4, it reflects Definitive Healthcare withholding shares from CFO Casey Heller to cover tax obligations triggered by vesting and settlement of restricted stock units.