SEC FORM 4 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).
1. Name and Address of Reporting Person*
ADVENT INTERNATIONAL CORP/MA

(Last) (First) (Middle)
PRUDENTIAL TOWER
800 BOYLSTON STREET, SUITE 3300

(Street)
BOSTON MA 02199-8069

(City) (State) (Zip)
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)
3. Date of Earliest Transaction (Month/Day/Year)
09/17/2021
4. If Amendment, Date of Original Filed (Month/Day/Year)
6. Individual or Joint/Group Filing (Check Applicable Line)
Form filed by One Reporting Person
X Form filed by More than One Reporting Person
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 09/17/2021 D 1,497,033(1) D $25.3125 64,596,549(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 (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
1. Name and Address of Reporting Person*
ADVENT INTERNATIONAL CORP/MA

(Last) (First) (Middle)
PRUDENTIAL TOWER
800 BOYLSTON STREET, SUITE 3300

(Street)
BOSTON MA 02199-8069

(City) (State) (Zip)
1. Name and Address of Reporting Person*
Advent International GPE IX Limited Partnership

(Last) (First) (Middle)
PRUDENTIAL TOWER
800 BOYLSTON STREET, SUITE 3300

(Street)
BOSTON MA 02199-8069

(City) (State) (Zip)
1. Name and Address of Reporting Person*
Advent International GPE IX-B Limited Partnership

(Last) (First) (Middle)
PRUDENTIAL TOWER
800 BOYLSTON STREET, SUITE 3300

(Street)
BOSTON MA 02199-8069

(City) (State) (Zip)
1. Name and Address of Reporting Person*
Advent International GPE IX-C Limited Partnership

(Last) (First) (Middle)
PRUDENTIAL TOWER
800 BOYLSTON STREET, SUITE 3300

(Street)
BOSTON MA 02199-8069

(City) (State) (Zip)
1. Name and Address of Reporting Person*
Advent International GPE IX-F Limited Partnership

(Last) (First) (Middle)
PRUDENTIAL TOWER
800 BOYLSTON STREET, SUITE 3300

(Street)
BOSTON MA 02199-8069

(City) (State) (Zip)
1. Name and Address of Reporting Person*
Advent International GPE IX-G Limited Partnership

(Last) (First) (Middle)
PRUDENTIAL TOWER
800 BOYLSTON STREET, SUITE 3300

(Street)
BOSTON MA 02199-8069

(City) (State) (Zip)
1. Name and Address of Reporting Person*
Advent International GPE IX-H Limited Partnership

(Last) (First) (Middle)
PRUDENTIAL TOWER
800 BOYLSTON STREET, SUITE 3300

(Street)
BOSTON MA 02199-8069

(City) (State) (Zip)
1. Name and Address of Reporting Person*
Advent International GPE IX-I Limited Partnership

(Last) (First) (Middle)
PRUDENTIAL TOWER
800 BOYLSTON STREET, SUITE 3300

(Street)
BOSTON MA 02199-8069

(City) (State) (Zip)
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 1 of 4: This Form 4 is the first of four 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.
ADVENT INTERNATIONAL CORPORATION, By: /s/ Neil Crawford, Name: Neil Crawford, Title: Director, Fund Administration 09/21/2021
** 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.

Exhibit 99.1

Footnotes to Form 4

(1)
Represents shares of Class A common stock sold to the Issuer by the following entities: (i) 431,167 shares sold by Advent International GPE IX Limited Partnership (“GPE-IX LP”), (ii) 85,438 shares sold by Advent International GPE IX-B Limited Partnership (“GPE IX-B LP”), (iii) 35,469 shares sold by Advent International GPE IX-C Limited Partnership (“GPE IX-C LP”), (iv) 37,213 shares sold by Advent International GPE IX-F Limited Partnership (“GPE IX-F LP”), (v) 122,449 shares sold by Advent International GPE IX-G Limited Partnership (“GPE IX-G LP”), (vi) 138,055 shares sold by Advent International GPE IX-H Limited Partnership (“GPE IX-H LP”), (vii) 78,198 shares sold by Advent International GPE IX-I Limited Partnership (“GPE IX-I LP”), (viii) 126,788 shares sold by Advent International GPE IX-A SCSP (“GPE IX-A SCSP”), (ix) 26,987 shares sold by Advent International GPE IX-D SCSP (“GPE IX-D SCSP”), (x) 54,844 shares sold by Advent International GPE IX-E SCSP (“GPE IX-E SCSP”), (xi) 2,478 shares sold Advent International GPE IX Strategic Investors SCSP (“GPE IX Strategic Investors SCSP”), (xii) 1,415 shares sold by Advent Partners GPE IX Limited Partnership (“AP GPE IX LP”), (xiii) 3,272 shares sold by Advent Partners GPE IX-A Limited Partnership (“AP GPE IX-A LP”), (xiv) 8,165 shares sold by Advent Partners GPE IX Cayman Limited Partnership (“AP GPE IX Cayman LP”), (xv) 1,377 shares sold by Advent Partners GPE IX-A Cayman Limited Partnership (“AP GPE IX-A Cayman LP”), (xvi) 22,849 shares sold by Advent Partners GPE IX-B Cayman Limited Partnership (“AP GPE IX-B Cayman LP”),  (xvii) 97,109 shares sold by Advent Global Technology Limited Partnership (“Global Technology LP”), (xviii) 75,573 shares sold by Advent Global Technology-B Limited Partnership (“Global Technology-B LP”), (xix) 40,918 shares sold by Advent Global Technology-C Limited Partnership (“Global Technology-C LP”), (xx) 48,987 shares sold by Advent Global Technology-D Limited Partnership (“Global Technology-D LP”), (xxi) 47,936 by Advent Global Technology-A SCSP (“Global Technology-A SCSP”), (xxii) 153 shares sold by Advent Partners AGT Limited Partnership (“AGT LP”), (xxiii) 696 shares sold by Advent Partners AGT-A Limited Partnership (“AGT-A LP”), (xxiv) 8,720 shares sold by Advent Partners AGT Cayman Limited Partnership (“AGT Cayman LP”) and (xxv) 777 shares sold by Advent Global Technology Strategic Investors Limited Partnership (“AGT Strategic Investors LP”). This transaction was approved by the board of directors of the Issuer for purposes of Rule 16b-3 of the Securities Exchange Act of 1934, as amended.

(2)
Following the reported transactions, Advent International Corporation (“Advent”) manages funds that collectively own 64,596,549 shares of Class A common stock of the Issuer, which are represented as follows: (i) 17,526,053 shares are held directly by GPE-IX LP, (ii) 3,472,864 shares are held directly GPE IX-B LP, (iii) 1,441,699 shares are held directly by GPE IX-C LP, (iv) 1,512,622 shares are held directly by GPE IX-F LP, (v) 4,977,255 shares are held directly by GPE IX-G LP, (vi) 5,611,595 shares are held directly by GPE IX-H LP, (vii) 3,178,527 shares are held directly by GPE IX-I LP, (viii) 5,153,621 shares are held directly by GPE IX-A SCSP, (ix) 1,096,951 shares are held directly by GPE IX-D SCSP, (x) 2,229,295 shares are held directly by GPE IX-E SCSP, (xi) 100,705 shares are held directly by GPE IX Strategic Investors SCSP, (xii) 57,514 shares are held directly by AP GPE IX LP, (xiii) 132,999 shares are held directly by AP GPE IX-A LP, (xiv) 331,874 shares are held directly by AP GPE IX Cayman LP, (xv) 55,942 shares are held directly by AP GPE IX-A Cayman LP, (xvi) 928,741 shares are held directly by AP GPE IX-B Cayman LP,  (xvii) 3,947,269 shares are held directly by Global Technology LP, (xviii) 3,071,881 shares are held directly by Global Technology-B LP, (xix) 1,663,214 shares are held directly by Global Technology-C LP, (xx) 1,991,209 shares are held directly by Global Technology-D LP, (xxi) 1,948,500 shares are held directly by Global Technology-A SCSP, (xxii) 6,192 shares are held directly by AGT LP, (xxiii) 28,294 shares are held directly by AGT-A LP, (xxiv) 354,438 shares are held directly by AGT Cayman LP, (xxv) 31,570 shares are held directly by AGT Strategic Investors LP and (xxvi) 3,745,725 shares are held directly by Sunley House Capital Master Limited Partnership (“Sunley House Master Fund”).


(3)
GPE IX GP Limited Partnership is the general partner of GPE-IX LP, GPE IX-B LP, GPE IX-C LP, GPE IX-F LP, GPE IX-G LP, GPE IX-H LP and GPE IX-I LP. GPE IX GP S.à r.l. is the general partner of GPE IX-A SCSP, GPE IX-D SCSP, GPE IX-E SCSP and GPE IX Strategic Investors SCSP. AP GPE IX GP Limited Partnership is the general partner of AP GPE IX LP, AP GPE IX-A LP, AP GPE IX Cayman LP, AP GPE IX-A Cayman LP and AP GPE IX-B Cayman LP. Advent Global Technology GP Limited Partnership is the general partner of Global Technology LP, Global Technology-B LP, Global Technology-C LP and Global Technology-D LP. Advent Global Technology GP S.à r.l. is the general partner of Technology-A SCSP. AP AGT GP Limited Partnership is the general partner of AGT LP, AGT-A LP, AGT Cayman LP and AGT Strategic Investors LP. Advent International GPE IX, LLC is the general partner of GPE IX GP Limited Partnership, AP GPE IX GP Limited Partnership and GPE IX GP S.à r.l. Advent Global Technology LLC is the general partner of Advent Global Technology GP Limited Partnership, Advent Global Technology GP S.à r.l. and AP AGT GP Limited Partnership. Sunley House Capital GP LP (“Sunley House GP LP”), as general partner of Sunley House Master Fund, Sunley House Capital GP LLC (“Sunley House GP LLC”), as general partner of Sunley House GP LP, and Sunley House Capital Management LLC (“Sunley House Manager”), as investment manager to Sunley House Master Fund, may be deemed to beneficially own the shares held directly by Sunley House Master Fund. Advent is the manager of Advent International GPE IX, LLC and Advent Global Technology LLC and is the sole member of both Sunley House GP LLC and Sunley House Manager. Investors in the Sunley House Master Fund invest in one or more of the following feeder funds: Sunley House Capital Fund LP, Sunley House Capital Limited Partnership, Sunley House Capital Fund Ltd. and Sunley House Capital Ltd. (collectively, the “Sunley House Feeder Funds”), which are the limited partners of the Sunley House Master Fund. The Sunley House Feeder Funds have ownership interests in the Sunley House Master Fund, but none of the Sunley House Feeder Funds owns shares directly and none has voting or dispositive power over the shares held directly by the Sunley House Master Fund.

(4)
Each Reporting Person disclaims Section 16 beneficial ownership of the shares reported herein except to the extent of its pecuniary interest therein, if any, and the inclusion of these shares in this report shall not be deemed an admission of beneficial ownership of any of the reported shares for purposes of Section 16 or any other purpose.




Exhibit 99.2

Joint Filer Information

Name of Joint Filer:
Advent International GPE IX Limited Partnership
Address of Joint Filer:
c/o Advent International Corporation
 
Prudential Tower, 800 Boylston Street, Suite 3300
 
Boston, MA 02199-8069
Relationship of Joint Filer to Issuer:
10% Owner, Director
Issuer Name and Ticker or Trading Symbol:
Definitive Healthcare Corp. [ DH ]


Date of Earliest Transaction
Required to be Reported (Month/Day/Year):
September 17, 2021
Designated Filer:
Advent International Corporation

Signature:

ADVENT INTERNATIONAL GPE IX LIMITED PARTNERSHIP
By: GPE IX GP Limited Partnership, its General Partner
By: Advent International GPE IX, LLC, its General Partner
By: Advent International Corporation, its Manager

By: /s/ Neil Crawford

Name: Neil Crawford

Title:   Director, Fund Administration


September 21, 2021
Date


Joint Filer Information

Name of Joint Filer:
Advent International GPE IX-B Limited Partnership
Address of Joint Filer:
c/o Advent International Corporation
 
Prudential Tower, 800 Boylston Street, Suite 3300
 
Boston, MA 02199-8069
Relationship of Joint Filer to Issuer:
10% Owner, Director
Issuer Name and Ticker or Trading Symbol:
Definitive Healthcare Corp. [ DH ]


Date of Earliest Transaction

Required to be Reported (Month/Day/Year):
September 17, 2021
Designated Filer:
Advent International Corporation

Signature:

ADVENT INTERNATIONAL GPE IX-B LIMITED PARTNERSHIP
By: GPE IX GP Limited Partnership, its General Partner
By: Advent International GPE IX, LLC, its General Partner
By: Advent International Corporation, its Manager

By: /s/ Neil Crawford

Name: Neil Crawford

Title:   Director, Fund Administration


September 21, 2021
Date


Joint Filer Information

Name of Joint Filer:
Advent International GPE IX-C Limited Partnership
Address of Joint Filer:
c/o Advent International Corporation
 
Prudential Tower, 800 Boylston Street, Suite 3300
 
Boston, MA 02199-8069
Relationship of Joint Filer to Issuer:
10% Owner, Director
Issuer Name and Ticker or Trading Symbol:
Definitive Healthcare Corp. [ DH ]


Date of Earliest Transaction
Required to be Reported (Month/Day/Year):
September 17, 2021
Designated Filer:
Advent International Corporation

Signature:

ADVENT INTERNATIONAL GPE IX-C LIMITED PARTNERSHIP
By: GPE IX GP Limited Partnership, its General Partner
By: Advent International GPE IX, LLC, its General Partner
By: Advent International Corporation, its Manager

By: /s/ Neil Crawford

Name: Neil Crawford

Title:   Director, Fund Administration


September 21, 2021
Date


Joint Filer Information

Name of Joint Filer:
Advent International GPE IX-F Limited Partnership
Address of Joint Filer:
c/o Advent International Corporation
 
Prudential Tower, 800 Boylston Street, Suite 3300
 
Boston, MA 02199-8069
Relationship of Joint Filer to Issuer:
10% Owner, Director
Issuer Name and Ticker or Trading Symbol:
Definitive Healthcare Corp. [ DH ]


Date of Earliest Transaction

Required to be Reported (Month/Day/Year):
September 17, 2021
Designated Filer:
Advent International Corporation

Signature:

ADVENT INTERNATIONAL GPE IX-F LIMITED PARTNERSHIP
By: GPE IX GP Limited Partnership, its General Partner
By: Advent International GPE IX, LLC, its General Partner
By: Advent International Corporation, its Manager

By: /s/ Neil Crawford

Name: Neil Crawford

Title:   Director, Fund Administration


September 21, 2021
Date


Joint Filer Information

Name of Joint Filer:
Advent International GPE IX-G Limited Partnership
Address of Joint Filer:
c/o Advent International Corporation
 
Prudential Tower, 800 Boylston Street, Suite 3300
 
Boston, MA 02199-8069
Relationship of Joint Filer to Issuer:
10% Owner, Director
Issuer Name and Ticker or Trading Symbol:
Definitive Healthcare Corp. [ DH ]


Date of Earliest Transaction

Required to be Reported (Month/Day/Year):
September 17, 2021
Designated Filer:
Advent International Corporation

Signature:

ADVENT INTERNATIONAL GPE IX-G LIMITED PARTNERSHIP
By: GPE IX GP Limited Partnership, its General Partner
By: Advent International GPE IX, LLC, its General Partner
By: Advent International Corporation, its Manager

By: /s/ Neil Crawford

Name: Neil Crawford

Title:   Director, Fund Administration


September 21, 2021
Date


Joint Filer Information

Name of Joint Filer:
Advent International GPE IX-H Limited Partnership
Address of Joint Filer:
c/o Advent International Corporation
 
Prudential Tower, 800 Boylston Street, Suite 3300
 
Boston, MA 02199-8069
Relationship of Joint Filer to Issuer:
10% Owner, Director
Issuer Name and Ticker or Trading Symbol:
Definitive Healthcare Corp. [ DH ]


Date of Earliest Transaction

Required to be Reported (Month/Day/Year):
September 17, 2021
Designated Filer:
Advent International Corporation

Signature:

ADVENT INTERNATIONAL GPE IX-H LIMITED PARTNERSHIP
By: GPE IX GP Limited Partnership, its General Partner
By: Advent International GPE IX, LLC, its General Partner
By: Advent International Corporation, its Manager

By: /s/ Neil Crawford

Name: Neil Crawford

Title:   Director, Fund Administration


September 21, 2021
Date


Joint Filer Information

Name of Joint Filer:
Advent International GPE IX-I Limited Partnership
Address of Joint Filer:
c/o Advent International Corporation
 
Prudential Tower, 800 Boylston Street, Suite 3300
 
Boston, MA 02199-8069
Relationship of Joint Filer to Issuer:
10% Owner, Director
Issuer Name and Ticker or Trading Symbol:
Definitive Healthcare Corp. [ DH ]


Date of Earliest Transaction

Required to be Reported (Month/Day/Year):
September 17, 2021
Designated Filer:
Advent International Corporation

Signature:

ADVENT INTERNATIONAL GPE IX-I LIMITED PARTNERSHIP
By: GPE IX GP Limited Partnership, its General Partner
By: Advent International GPE IX, LLC, its General Partner
By: Advent International Corporation, its Manager

By: /s/ Neil Crawford

Name: Neil Crawford

Title:   Director, Fund Administration


September 21, 2021
Date


Joint Filer Information

Name of Joint Filer:
Advent International GPE IX-A SCSP
Address of Joint Filer:
c/o Advent International Corporation
 
Prudential Tower, 800 Boylston Street, Suite 3300
 
Boston, MA 02199-8069
Relationship of Joint Filer to Issuer:
10% Owner, Director
Issuer Name and Ticker or Trading Symbol:
Definitive Healthcare Corp. [ DH ]


Date of Earliest Transaction

Required to be Reported (Month/Day/Year):
September 17, 2021
Designated Filer:
Advent International Corporation

Signature:

ADVENT INTERNATIONAL GPE IX-A SCSP


By: GPE IX GP S.à r.l., its General Partner


By: Advent International GPE IX, LLC, its General Partner
/s/ Justin Nuccio

By: Advent International Corporation, its Manager
Justin Nuccio, Manager


By: /s/ Neil Crawford

Name: Neil Crawford

Title:   Director, Fund Administration


September 21, 2021
Date


Joint Filer Information

Name of Joint Filer:
Advent International GPE IX-D SCSP
Address of Joint Filer:
c/o Advent International Corporation
 
Prudential Tower, 800 Boylston Street, Suite 3300
 
Boston, MA 02199-8069
Relationship of Joint Filer to Issuer:
10% Owner, Director
Issuer Name and Ticker or Trading Symbol:
Definitive Healthcare Corp. [ DH ]


Date of Earliest Transaction

Required to be Reported (Month/Day/Year):
September 17, 2021
Designated Filer:
Advent International Corporation

Signature:

ADVENT INTERNATIONAL GPE IX-D SCSP


By: GPE IX GP S.à r.l., its General Partner


By: Advent International GPE IX, LLC, its General Partner
/s/ Justin Nuccio

By: Advent International Corporation, its Manager
Justin Nuccio, Manager


By: /s/ Neil Crawford

Name: Neil Crawford

Title:   Director, Fund Administration


September 21, 2021
Date


Joint Filer Information

Name of Joint Filer:
Advent International GPE IX-E SCSP
Address of Joint Filer:
c/o Advent International Corporation
 
Prudential Tower, 800 Boylston Street, Suite 3300
 
Boston, MA 02199-8069
Relationship of Joint Filer to Issuer:
10% Owner, Director
Issuer Name and Ticker or Trading Symbol:
Definitive Healthcare Corp. [ DH ]


Date of Earliest Transaction

Required to be Reported (Month/Day/Year):
September 17, 2021
Designated Filer:
Advent International Corporation

Signature:

ADVENT INTERNATIONAL GPE IX-E SCSP


By: GPE IX GP S.à r.l., its General Partner


By: Advent International GPE IX, LLC, its General Partner
/s/ Justin Nuccio

By: Advent International Corporation, its Manager
Justin Nuccio, Manager


By: /s/ Neil Crawford

Name: Neil Crawford

Title:   Director, Fund Administration


September 21, 2021
Date


Joint Filer Information

Name of Joint Filer:
Advent International GPE IX Strategic Investors SCSP
Address of Joint Filer:
c/o Advent International Corporation
 
Prudential Tower, 800 Boylston Street, Suite 3300
 
Boston, MA 02199-8069
Relationship of Joint Filer to Issuer:
10% Owner, Director
Issuer Name and Ticker or Trading Symbol:
Definitive Healthcare Corp. [ DH ]


Date of Earliest Transaction

Required to be Reported (Month/Day/Year):
September 17, 2021
Designated Filer:
Advent International Corporation

Signature:

ADVENT INTERNATIONAL GPE IX
STRATEGIC INVESTORS SCSP


By: GPE IX GP S.à r.l., its General Partner


By: Advent International GPE IX, LLC, its General Partner
/s/ Justin Nuccio

By: Advent International Corporation, its Manager
Justin Nuccio, Manager


By: /s/ Neil Crawford

Name: Neil Crawford

Title:   Director, Fund Administration


September 21, 2021
Date


Joint Filer Information

Name of Joint Filer:
Advent Partners GPE IX Limited Partnership
Address of Joint Filer:
c/o Advent International Corporation
 
Prudential Tower, 800 Boylston Street, Suite 3300
 
Boston, MA 02199-8069
Relationship of Joint Filer to Issuer:
10% Owner, Director
Issuer Name and Ticker or Trading Symbol:
Definitive Healthcare Corp. [ DH ]


Date of Earliest Transaction

Required to be Reported (Month/Day/Year):
September 17, 2021
Designated Filer:
Advent International Corporation

Signature:

ADVENT PARTNERS GPE IX LIMITED PARTNERSHIP
By: AP GPE IX Limited Partnership, its General Partner
By: Advent International GPE IX, LLC, its General Partner
By: Advent International Corporation, its Manager

By: /s/ Neil Crawford

Name: Neil Crawford

Title:   Director, Fund Administration


September 21, 2021
Date


Joint Filer Information

Name of Joint Filer:
Advent Partners GPE IX-A Limited Partnership
Address of Joint Filer:
c/o Advent International Corporation
 
Prudential Tower, 800 Boylston Street, Suite 3300
 
Boston, MA 02199-8069
Relationship of Joint Filer to Issuer:
10% Owner, Director
Issuer Name and Ticker or Trading Symbol:
Definitive Healthcare Corp. [ DH ]


Date of Earliest Transaction

Required to be Reported (Month/Day/Year):
September 17, 2021
Designated Filer:
Advent International Corporation

Signature:

ADVENT PARTNERS GPE IX-A LIMITED PARTNERSHIP
By: AP GPE IX Limited Partnership, its General Partner
By: Advent International GPE IX, LLC, its General Partner
By: Advent International Corporation, its Manager

By: /s/ Neil Crawford

Name: Neil Crawford

Title:   Director, Fund Administration


September 21, 2021
Date


Joint Filer Information

Name of Joint Filer:
Advent Partners GPE IX Cayman Limited Partnership
Address of Joint Filer:
c/o Advent International Corporation
 
Prudential Tower, 800 Boylston Street, Suite 3300
 
Boston, MA 02199-8069
Relationship of Joint Filer to Issuer:
10% Owner, Director
Issuer Name and Ticker or Trading Symbol:
Definitive Healthcare Corp. [ DH ]


Date of Earliest Transaction

Required to be Reported (Month/Day/Year):
September 17, 2021
Designated Filer:
Advent International Corporation

Signature:

ADVENT PARTNERS GPE IX CAYMAN LIMITED PARTNERSHIP
By: AP GPE IX Limited Partnership, its General Partner
By: Advent International GPE IX, LLC, its General Partner
By: Advent International Corporation, its Manager

By: /s/ Neil Crawford

Name: Neil Crawford

Title:   Director, Fund Administration


September 21, 2021
Date


Joint Filer Information

Name of Joint Filer:
Advent Partners GPE IX-A Cayman Limited Partnership
Address of Joint Filer:
c/o Advent International Corporation
 
Prudential Tower, 800 Boylston Street, Suite 3300
 
Boston, MA 02199-8069
Relationship of Joint Filer to Issuer:
10% Owner, Director
Issuer Name and Ticker or Trading Symbol:
Definitive Healthcare Corp. [ DH ]


Date of Earliest Transaction

Required to be Reported (Month/Day/Year):
September 17, 2021
Designated Filer:
Advent International Corporation

Signature:

ADVENT PARTNERS GPE IX-A CAYMAN LIMITED PARTNERSHIP
By: AP GPE IX Limited Partnership, its General Partner
By: Advent International GPE IX, LLC, its General Partner
By: Advent International Corporation, its Manager

By: /s/ Neil Crawford

Name: Neil Crawford

Title:   Director, Fund Administration


September 21, 2021
Date


Joint Filer Information

Name of Joint Filer:
Advent Partners GPE IX-B Cayman Limited Partnership
Address of Joint Filer:
c/o Advent International Corporation
 
Prudential Tower, 800 Boylston Street, Suite 3300
 
Boston, MA 02199-8069
Relationship of Joint Filer to Issuer:
10% Owner, Director
Issuer Name and Ticker or Trading Symbol:
Definitive Healthcare Corp. [ DH ]


Date of Earliest Transaction

Required to be Reported (Month/Day/Year):
September 17, 2021
Designated Filer:
Advent International Corporation

Signature:

ADVENT PARTNERS GPE IX-B CAYMAN LIMITED PARTNERSHIP
By: AP GPE IX Limited Partnership, its General Partner
By: Advent International GPE IX, LLC, its General Partner
By: Advent International Corporation, its Manager

By: /s/ Neil Crawford

Name: Neil Crawford

Title:   Director, Fund Administration


September 21, 2021
Date


Joint Filer Information

Name of Joint Filer:
GPE IX GP Limited Partnership
Address of Joint Filer:
c/o Advent International Corporation
 
Prudential Tower, 800 Boylston Street, Suite 3300
 
Boston, MA 02199-8069
Relationship of Joint Filer to Issuer:
10% Owner, Director
Issuer Name and Ticker or Trading Symbol:
Definitive Healthcare Corp. [ DH ]


Date of Earliest Transaction

Required to be Reported (Month/Day/Year):
September 17, 2021
Designated Filer:
Advent International Corporation

Signature:

GPE IX GP LIMITED PARTNERSHIP
By: Advent International GPE IX, LLC, its General Partner
By: Advent International Corporation, its Manager

By: /s/ Neil Crawford

Name: Neil Crawford

Title:   Director, Fund Administration


September 21, 2021
Date


Joint Filer Information

Name of Joint Filer:
GPE IX GP S.à.r.l.
Address of Joint Filer:
c/o Advent International Corporation
 
Prudential Tower, 800 Boylston Street, Suite 3300
 
Boston, MA 02199-8069
Relationship of Joint Filer to Issuer:
10% Owner, Director
Issuer Name and Ticker or Trading Symbol:
Definitive Healthcare Corp. [ DH ]


Date of Earliest Transaction

Required to be Reported (Month/Day/Year):
September 17, 2021
Designated Filer:
Advent International Corporation

Signature:

GPE IX GP S.À.R.L.


By: Advent International GPE IX, LLC, its General Partner
/s/ Justin Nuccio

By: Advent International Corporation, its Manager
Justin Nuccio, Manager


By: /s/ Neil Crawford

Name: Neil Crawford

Title:   Director, Fund Administration


September 21, 2021
Date


Joint Filer Information

Name of Joint Filer:
AP GPE IX GP Limited Partnership
Address of Joint Filer:
c/o Advent International Corporation
 
Prudential Tower, 800 Boylston Street, Suite 3300
 
Boston, MA 02199-8069
Relationship of Joint Filer to Issuer:
10% Owner, Director
Issuer Name and Ticker or Trading Symbol:
Definitive Healthcare Corp. [ DH ]


Date of Earliest Transaction

Required to be Reported (Month/Day/Year):
September 17, 2021
Designated Filer:
Advent International Corporation

Signature:

AP GPE IX GP LIMITED PARTNERSHIP
By: Advent International GPE IX, LLC, its General Partner
By: Advent International Corporation, its Manager

By: /s/ Neil Crawford

Name: Neil Crawford

Title:   Director, Fund Administration


September 21, 2021
Date


Joint Filer Information

Name of Joint Filer:
Advent International GPE IX, LLC
Address of Joint Filer:
c/o Advent International Corporation
 
Prudential Tower, 800 Boylston Street, Suite 3300
 
Boston, MA 02199-8069
Relationship of Joint Filer to Issuer:
10% Owner, Director
Issuer Name and Ticker or Trading Symbol:
Definitive Healthcare Corp. [ DH ]


Date of Earliest Transaction

Required to be Reported (Month/Day/Year):
September 17, 2021
Designated Filer:
Advent International Corporation

Signature:

ADVENT INTERNATIONAL GPE IX, LLC
By: Advent International Corporation, its Manager

By: /s/ Neil Crawford

Name: Neil Crawford

Title:   Director, Fund Administration


September 21, 2021
Date


Joint Filer Information

Name of Joint Filer:
Advent Global Technology Limited Partnership
Address of Joint Filer:
c/o Advent International Corporation
 
Prudential Tower, 800 Boylston Street, Suite 3300
 
Boston, MA 02199-8069
Relationship of Joint Filer to Issuer:
10% Owner, Director
Issuer Name and Ticker or Trading Symbol:
Definitive Healthcare Corp. [ DH ]


Date of Earliest Transaction

Required to be Reported (Month/Day/Year):
September 17, 2021
Designated Filer:
Advent International Corporation

Signature:

ADVENT GLOBAL TECHNOLOGY LIMITED PARTNERSHIP
By: Advent Global Technology GP Limited Partnership, its General Partner
By: Advent Global Technology LLC, its General Partner
By: Advent International Corporation, its Manager

By: /s/ Neil Crawford

Name: Neil Crawford

Title:   Director, Fund Administration


September 21, 2021
Date


Joint Filer Information

Name of Joint Filer:
Advent Global Technology-B Limited Partnership
Address of Joint Filer:
c/o Advent International Corporation
 
Prudential Tower, 800 Boylston Street, Suite 3300
 
Boston, MA 02199-8069
Relationship of Joint Filer to Issuer:
10% Owner, Director
Issuer Name and Ticker or Trading Symbol:
Definitive Healthcare Corp. [ DH ]


Date of Earliest Transaction

Required to be Reported (Month/Day/Year):
September 17, 2021
Designated Filer:
Advent International Corporation

Signature:

ADVENT GLOBAL TECHNOLOGY-B LIMITED PARTNERSHIP
By: Advent Global Technology GP Limited Partnership, its General Partner
By: Advent Global Technology LLC, its General Partner
By: Advent International Corporation, its Manager

By: /s/ Neil Crawford

Name: Neil Crawford

Title:   Director, Fund Administration


September 21, 2021
Date


Joint Filer Information

Name of Joint Filer:
Advent Global Technology-C Limited Partnership
Address of Joint Filer:
c/o Advent International Corporation
 
Prudential Tower, 800 Boylston Street, Suite 3300
 
Boston, MA 02199-8069
Relationship of Joint Filer to Issuer:
10% Owner, Director
Issuer Name and Ticker or Trading Symbol:
Definitive Healthcare Corp. [ DH ]


Date of Earliest Transaction

Required to be Reported (Month/Day/Year):
September 17, 2021
Designated Filer:
Advent International Corporation

Signature:

ADVENT GLOBAL TECHNOLOGY-C LIMITED PARTNERSHIP
By: Advent Global Technology GP Limited Partnership, its General Partner
By: Advent Global Technology LLC, its General Partner
By: Advent International Corporation, its Manager

By: /s/ Neil Crawford

Name: Neil Crawford

Title:   Director, Fund Administration


September 21, 2021
Date


Joint Filer Information

Name of Joint Filer:
Advent Global Technology-D Limited Partnership
Address of Joint Filer:
c/o Advent International Corporation
 
Prudential Tower, 800 Boylston Street, Suite 3300
 
Boston, MA 02199-8069
Relationship of Joint Filer to Issuer:
10% Owner, Director
Issuer Name and Ticker or Trading Symbol:
Definitive Healthcare Corp. [ DH ]


Date of Earliest Transaction

Required to be Reported (Month/Day/Year):
September 17, 2021
Designated Filer:
Advent International Corporation

Signature:

ADVENT GLOBAL TECHNOLOGY-D LIMITED PARTNERSHIP
By: Advent Global Technology GP Limited Partnership, its General Partner
By: Advent Global Technology LLC, its General Partner
By: Advent International Corporation, its Manager

By: /s/ Neil Crawford

Name: Neil Crawford

Title:   Director, Fund Administration


September 21, 2021
Date


Joint Filer Information

Name of Joint Filer:
Advent Global Technology-A SCSP
Address of Joint Filer:
c/o Advent International Corporation
 
Prudential Tower, 800 Boylston Street, Suite 3300
 
Boston, MA 02199-8069
Relationship of Joint Filer to Issuer:
10% Owner, Director
Issuer Name and Ticker or Trading Symbol:
Definitive Healthcare Corp. [ DH ]


Date of Earliest Transaction

Required to be Reported (Month/Day/Year):
September 17, 2021
Designated Filer:
Advent International Corporation

Signature:

ADVENT GLOBAL TECHNOLOGY-A SCSP


By: Advent Global Technology GP S.à.r.l., its General Partner


By: Advent Global Technology LLC, its General Partner
/s/ Justin Nuccio

By: Advent International Corporation, its Manager
Justin Nuccio, Manager


By: /s/ Neil Crawford

Name: Neil Crawford

Title:   Director, Fund Administration


September 21, 2021
Date


Joint Filer Information

Name of Joint Filer:
Advent Partners AGT Limited Partnership
Address of Joint Filer:
c/o Advent International Corporation
 
Prudential Tower, 800 Boylston Street, Suite 3300
 
Boston, MA 02199-8069
Relationship of Joint Filer to Issuer:
10% Owner, Director
Issuer Name and Ticker or Trading Symbol:
Definitive Healthcare Corp. [ DH ]


Date of Earliest Transaction

Required to be Reported (Month/Day/Year):
September 17, 2021
Designated Filer:
Advent International Corporation

Signature:

ADVENT PARTNERS AGT LIMITED PARTNERSHIP
By: AP AGT GP Limited Partnership, its General Partner
By: Advent Global Technology LLC, its General Partner
By: Advent International Corporation, its Manager

By: /s/ Neil Crawford

Name: Neil Crawford

Title:   Director, Fund Administration


September 21, 2021
Date


Joint Filer Information

Name of Joint Filer:
Advent Partners AGT-A Limited Partnership
Address of Joint Filer:
c/o Advent International Corporation
 
Prudential Tower, 800 Boylston Street, Suite 3300
 
Boston, MA 02199-8069
Relationship of Joint Filer to Issuer:
10% Owner, Director
Issuer Name and Ticker or Trading Symbol:
Definitive Healthcare Corp. [ DH ]


Date of Earliest Transaction

Required to be Reported (Month/Day/Year):
September 17, 2021
Designated Filer:
Advent International Corporation

Signature:

ADVENT PARTNERS AGT-A LIMITED PARTNERSHIP
By: AP AGT GP Limited Partnership, its General Partner
By: Advent Global Technology LLC, its General Partner
By: Advent International Corporation, its Manager

By: /s/ Neil Crawford

Name: Neil Crawford

Title:   Director, Fund Administration


September 21, 2021
Date


Joint Filer Information

Name of Joint Filer:
Advent Partners AGT Cayman Limited Partnership
Address of Joint Filer:
c/o Advent International Corporation
 
Prudential Tower, 800 Boylston Street, Suite 3300
 
Boston, MA 02199-8069
Relationship of Joint Filer to Issuer:
10% Owner, Director
Issuer Name and Ticker or Trading Symbol:
Definitive Healthcare Corp. [ DH ]


Date of Earliest Transaction

Required to be Reported (Month/Day/Year):
September 17, 2021
Designated Filer:
Advent International Corporation

Signature:

ADVENT PARTNERS AGT CAYMAN LIMITED PARTNERSHIP
By: AP AGT GP Limited Partnership, its General Partner
By: Advent Global Technology LLC, its General Partner
By: Advent International Corporation, its Manager

By: /s/ Neil Crawford

Name: Neil Crawford

Title:   Director, Fund Administration


September 21, 2021
Date


Joint Filer Information

Name of Joint Filer:
Advent Global Technology Strategic Investors Limited Partnership
Address of Joint Filer:
c/o Advent International Corporation
 
Prudential Tower, 800 Boylston Street, Suite 3300
 
Boston, MA 02199-8069
Relationship of Joint Filer to Issuer:
10% Owner, Director
Issuer Name and Ticker or Trading Symbol:
Definitive Healthcare Corp. [ DH ]


Date of Earliest Transaction

Required to be Reported (Month/Day/Year):
September 17, 2021
Designated Filer:
Advent International Corporation

Signature:

ADVENT GLOBAL TECHNOLOGY STRATEGIC INVESTORS LIMITED PARTNERSHIP
By: AP AGT GP Limited Partnership, its General Partner
By: Advent Global Technology LLC, its General Partner
By: Advent International Corporation, its Manager

By: /s/ Neil Crawford

Name: Neil Crawford

Title:   Director, Fund Administration


September 21, 2021
Date


Joint Filer Information

Name of Joint Filer:
Advent Global Technology GP Limited Partnership
Address of Joint Filer:
c/o Advent International Corporation
 
Prudential Tower, 800 Boylston Street, Suite 3300
 
Boston, MA 02199-8069
Relationship of Joint Filer to Issuer:
10% Owner, Director
Issuer Name and Ticker or Trading Symbol:
Definitive Healthcare Corp. [ DH ]


Date of Earliest Transaction

Required to be Reported (Month/Day/Year):
September 17, 2021
Designated Filer:
Advent International Corporation

Signature:

ADVENT GLOBAL TECHNOLOGY GP LIMITED PARTNERSHIP
By: Advent Global Technology LLC, its General Partner
By: Advent International Corporation, its Manager

By: /s/ Neil Crawford

Name: Neil Crawford

Title:   Director, Fund Administration


September 21, 2021
Date


Joint Filer Information

Name of Joint Filer:
Advent Global Technology GP S.à.r.l.
Address of Joint Filer:
c/o Advent International Corporation
 
Prudential Tower, 800 Boylston Street, Suite 3300
 
Boston, MA 02199-8069
Relationship of Joint Filer to Issuer:
10% Owner, Director
Issuer Name and Ticker or Trading Symbol:
Definitive Healthcare Corp. [ DH ]


Date of Earliest Transaction

Required to be Reported (Month/Day/Year):
September 17, 2021
Designated Filer:
Advent International Corporation

Signature:

ADVENT GLOBAL TECHNOLOGY GP S.À.R.L.


By: Advent Global Technology LLC, its General Partner
/s/ Justin Nuccio

By: Advent International Corporation, its Manager
Justin Nuccio, Manager


By: /s/ Neil Crawford

Name: Neil Crawford

Title:   Director, Fund Administration


September 21, 2021
Date


Joint Filer Information

Name of Joint Filer:
AP AGT GP Limited Partnership
Address of Joint Filer:
c/o Advent International Corporation
 
Prudential Tower, 800 Boylston Street, Suite 3300
 
Boston, MA 02199-8069
Relationship of Joint Filer to Issuer:
10% Owner, Director
Issuer Name and Ticker or Trading Symbol:
Definitive Healthcare Corp. [ DH ]


Date of Earliest Transaction

Required to be Reported (Month/Day/Year):
September 17, 2021
Designated Filer:
Advent International Corporation

Signature:

AP AGT GP LIMITED PARTNERSHIP
By: Advent Global Technology LLC, its General Partner
By: Advent International Corporation, its Manager

By: /s/ Neil Crawford

Name: Neil Crawford

Title:   Director, Fund Administration


September 21, 2021
Date


Joint Filer Information

Name of Joint Filer:
Advent Global Technology LLC
Address of Joint Filer:
c/o Advent International Corporation
 
Prudential Tower, 800 Boylston Street, Suite 3300
 
Boston, MA 02199-8069
Relationship of Joint Filer to Issuer:
10% Owner, Director
Issuer Name and Ticker or Trading Symbol:
Definitive Healthcare Corp. [ DH ]


Date of Earliest Transaction

Required to be Reported (Month/Day/Year):
September 17, 2021
Designated Filer:
Advent International Corporation

Signature:

ADVENT GLOBAL TECHNOLOGY LLC
By: Advent International Corporation, its Manager

By: /s/ Neil Crawford

Name: Neil Crawford

Title:   Director, Fund Administration


September 21, 2021
Date