Joseph Gianni Mirisola - Sep 15, 2021 Form 3 Insider Report for Definitive Healthcare Corp. (DH)

Role: Chief Revenue Officer
Signature: By:/s/ David Samuels, as attorney-in-fact
Stock symbol: DH
Transactions as of: Sep 15, 2021
Transactions value $: $0
Form type: 3
Date filed: 9/15/2021, 08:19 PM
Next filing: Nov 24, 2021

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
holding	DH	Class A common stock						56.9K	Sep 15, 2021	Direct	F1

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
holding	DH	LLC Units of AIDH Management Holdings, LLC							Sep 15, 2021	Class A common stock	468K		Direct	F2, F3

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Represents restricted stock units subject to time-based vesting, 25% of which vest on the first anniversary of the date of grant, and the remaining 75% of which vest in substantially equal installments at the end of each three-month period measured from the first anniversary of the date of grant for a period of 36 months, subject to the Reporting Person's continued service with the Issuer and the terms of the applicable award agreement.
F2	AIDH Management Holdings, LLC ("Management Holdings") is a special purpose investment vehicle through which interests in AIDH Topco, LLC are indirectly owned. Certain unvested awards vest in equal installments on each of the first, second and third anniversaries of the Issuer's initial public offering, and the remainder of the unvested awards continue to vest pursuant to a four-year annual vesting schedule. Once vested the Reporting Person may exchange LLC Units of Management Holdings for LLC Units of AIDH Topco, LLC on a one-for-one basis, which are exchanged for shares of Class A common stock of the Issuer on a one-for-one basis, subject to certain exceptions, conditions and adjustments. The LLC Units of Management Holdings have no expiration date.
F3	(Continued from Footnote 2) At the time of any such exchange, an equal number of shares of Class B Common Stock of the Issuer held by the Reporting Person, which have no economic value and entitle holders thereof to one vote per share on all matters on which stockholders of the Issuer are entitled to vote generally, are cancelled.

Remarks:

Exhibit 24 - Power of Attorney