Sec Form 4 Filing - ADVENT INTERNATIONAL CORP/MA @ Definitive Healthcare Corp. - 2021-11-22

Insider filing report for Changes in Beneficial Ownership
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FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
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, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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1. Name and Address of Reporting Person
ADVENT INTERNATIONAL CORP/MA
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) _____ Other (specify below)
(Last) (First) (Middle)
PRUDENTIAL TOWER, 800 BOYLSTON STREET, SUITE 3300
3. Date of Earliest Transaction (MM/DD/YY)
11/22/2021
(Street)
BOSTON, MA02199-8069
4. If Amendment, Date Original Filed (MM/DD/YY)
6. Individual or Joint/Group Filing (Check Applicable Line)
_____ Form filed by One Reporting Person
__ X __ Form filed by More than One Reporting Person
(City) (State) (Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)
2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 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 11/22/2021 D 2,102,873( 1 ) D $ 34.74 62,493,676( 2 ) I See Notes( 2 )( 3 )( 4 )
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 (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 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
(MM/DD/YY)
7. Title and Amount of Underlying Securities
(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 of Derivative Security: 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
Reporting Owners
Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
ADVENT INTERNATIONAL CORP/MA
PRUDENTIAL TOWER
800 BOYLSTON STREET, SUITE 3300
BOSTON, MA02199-8069
X X
Sunley House Capital Master Limited Partnership
PRUDENTIAL TOWER
800 BOYLSTON STREET, SUITE 3300
BOSTON, MA02199-8069
X X
Sunley House Capital GP LP
PRUDENTIAL TOWER
800 BOYLSTON STREET, SUITE 3300
BOSTON, MA02199-8069
X X
SUNLEY HOUSE CAPITAL GP LLC
PRUDENTIAL TOWER
800 BOYLSTON STREET, SUITE 3300
BOSTON, MA02199-8069
X X
SUNLEY HOUSE CAPITAL MANAGEMENT LLC
PRUDENTIAL TOWER
800 BOYLSTON STREET, SUITE 3300
BOSTON, MA02199-8069
X X
Signatures
ADVENT INTERNATIONAL CORPORATION, By: /s/ Neil Crawford, Name: Neil Crawford, Title: Director, Fund Administration 11/24/2021
Signature of Reporting Person Date
Explanation of Responses:
( 1 )See Exhibit 99.1 for text of footnote (1).
( 2 )See Exhibit 99.1 for text of footnote (2).
( 3 )See Exhibit 99.1 for text of footnote (3).
( 4 )See Exhibit 99.1 for text of footnote (4).

Remarks:
Christopher Egan, a Managing Partner of Advent and Lauren Young, a Managing Director of Advent (together, the "Advent Directors"), each serve on the board of directors of the Issuer, and have been deputized to represent the Reporting Persons on the board of directors. By virtue of the Advent Directors' representation, for purposes of Section 16 of the Securities Exchange Act of 1934, each of the Reporting Persons may be deemed directors by deputization of the Issuer. The Advent Directors have filed separate Section 16 reports disclosing securities of the Issuer that they may be deemed to beneficially own for Section 16 purposes.Exhibit 99.1 (Footnotes to Form 4) and Exhibit 99.2 (Signatures and Joint Filer Information) are incorporated by reference.Form 5 of 5: This Form 4 is the fifth of five Forms 4 being filed relating to the same event. The Form 4 has been split into multiple filings because there are more than 10 Reporting Persons total, and the SEC's EDGAR filing system limits a single Form 4 to a maximum of 10 Reporting Persons. Each Form 4 will be filed by Designated Filer Advent International Corporation.

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).

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