0001140361-21-017941.txt : 20210518 0001140361-21-017941.hdr.sgml : 20210518 20210518201500 ACCESSION NUMBER: 0001140361-21-017941 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 3 CONFORMED PERIOD OF REPORT: 20210514 FILED AS OF DATE: 20210518 DATE AS OF CHANGE: 20210518 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: ADVENT INTERNATIONAL CORP/MA CENTRAL INDEX KEY: 0001034196 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-36730 FILM NUMBER: 21938021 BUSINESS ADDRESS: STREET 1: 800 BOYLSTON STREET SUITE 3300 CITY: BOSTON STATE: MA ZIP: 02199 BUSINESS PHONE: 6179510555 MAIL ADDRESS: STREET 1: 800 BOYLSTON STREET SUITE 3300 CITY: BOSTON STATE: MA ZIP: 02199 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Advent Partners GPE VII Limited Partnership CENTRAL INDEX KEY: 0001556190 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-36730 FILM NUMBER: 21938020 BUSINESS ADDRESS: STREET 1: C/O ADVENT INTERNATIONAL CORPORATION STREET 2: 75 STATE STREET CITY: BOSTON STATE: MA ZIP: 02109 BUSINESS PHONE: 617-951-9400 MAIL ADDRESS: STREET 1: C/O ADVENT INTERNATIONAL CORPORATION STREET 2: 75 STATE STREET CITY: BOSTON STATE: MA ZIP: 02109 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Advent Partners GPE VII-A Limited Partnership CENTRAL INDEX KEY: 0001559259 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-36730 FILM NUMBER: 21938018 BUSINESS ADDRESS: STREET 1: C/O ADVENT INTERNATIONAL CORPORATION STREET 2: 75 STATE STREET CITY: BOSTON STATE: MA ZIP: 02109 BUSINESS PHONE: 617-951-9400 MAIL ADDRESS: STREET 1: C/O ADVENT INTERNATIONAL CORPORATION STREET 2: 75 STATE STREET CITY: BOSTON STATE: MA ZIP: 02109 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Advent Partners GPE VII-A Cayman Limited Partnership CENTRAL INDEX KEY: 0001559260 STATE OF INCORPORATION: E9 FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-36730 FILM NUMBER: 21938014 BUSINESS ADDRESS: STREET 1: C/O ADVENT INTERNATIONAL CORPORATION STREET 2: 75 STATE STREET CITY: BOSTON STATE: MA ZIP: 02109 BUSINESS PHONE: 617-951-9400 MAIL ADDRESS: STREET 1: C/O ADVENT INTERNATIONAL CORPORATION STREET 2: 75 STATE STREET CITY: BOSTON STATE: MA ZIP: 02109 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Advent Partners GPE VII Cayman Limited Partnership CENTRAL INDEX KEY: 0001561808 STATE OF INCORPORATION: E9 FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-36730 FILM NUMBER: 21938016 BUSINESS ADDRESS: STREET 1: C/O ADVENT INTERNATIONAL CORPORATION STREET 2: 75 STATE STREET CITY: BOSTON STATE: MA ZIP: 02109 BUSINESS PHONE: 617-951-9400 MAIL ADDRESS: STREET 1: C/O ADVENT INTERNATIONAL CORPORATION STREET 2: 75 STATE STREET CITY: BOSTON STATE: MA ZIP: 02109 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Advent Partners GPE VII 2014 Limited Partnership CENTRAL INDEX KEY: 0001616578 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-36730 FILM NUMBER: 21938019 BUSINESS ADDRESS: STREET 1: C/O ADVENT INTERNATIONAL CORPORATION STREET 2: 800 BOYLSTON STREET, SUITE 3300 CITY: BOSTON STATE: MA ZIP: 02199 BUSINESS PHONE: 617 951-9400 MAIL ADDRESS: STREET 1: C/O ADVENT INTERNATIONAL CORPORATION STREET 2: 800 BOYLSTON STREET, SUITE 3300 CITY: BOSTON STATE: MA ZIP: 02199 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Advent Partners GPE VII-B Cayman Limited Partnership CENTRAL INDEX KEY: 0001563878 STATE OF INCORPORATION: E9 FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-36730 FILM NUMBER: 21938013 BUSINESS ADDRESS: STREET 1: C/O ADVENT INTERNATIONAL CORPORATION STREET 2: 75 STATE STREET CITY: BOSTON STATE: MA ZIP: 02109 BUSINESS PHONE: 617-951-9400 MAIL ADDRESS: STREET 1: C/O ADVENT INTERNATIONAL CORPORATION STREET 2: 75 STATE STREET CITY: BOSTON STATE: MA ZIP: 02109 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Advent Partners GPE VII 2014 Cayman Limited Partnership CENTRAL INDEX KEY: 0001616563 STATE OF INCORPORATION: E9 FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-36730 FILM NUMBER: 21938015 BUSINESS ADDRESS: STREET 1: C/O ADVENT INTERNATIONAL CORPORATION STREET 2: 800 BOYLSTON STREET, SUITE 3300 CITY: BOSTON STATE: MA ZIP: 02199 BUSINESS PHONE: 617-951-9493 MAIL ADDRESS: STREET 1: C/O ADVENT INTERNATIONAL CORPORATION STREET 2: 800 BOYLSTON STREET, SUITE 3300 CITY: BOSTON STATE: MA ZIP: 02199 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Advent Partners GPE VII-A 2014 Cayman Limited Partnership CENTRAL INDEX KEY: 0001616564 STATE OF INCORPORATION: NY FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-36730 FILM NUMBER: 21938012 BUSINESS ADDRESS: STREET 1: C/O ADVENT INTERNATIONAL CORPORATION STREET 2: 800 BOYLSTON STREET SUITE 3300 CITY: BOSTON STATE: MA ZIP: 02199 BUSINESS PHONE: 617-951-9493 MAIL ADDRESS: STREET 1: C/O ADVENT INTERNATIONAL CORPORATION STREET 2: 800 BOYLSTON STREET SUITE 3300 CITY: BOSTON STATE: MA ZIP: 02199 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Advent Partners GPE VII-A 2014 Limited Partnership CENTRAL INDEX KEY: 0001616577 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-36730 FILM NUMBER: 21938017 BUSINESS ADDRESS: STREET 1: C/O ADVENT INTERNATIONAL CORPORATION STREET 2: 800 BOYLSTON STREET, SUITE 3300 CITY: BOSTON STATE: MA ZIP: 02199 BUSINESS PHONE: 617-951-9493 MAIL ADDRESS: STREET 1: C/O ADVENT INTERNATIONAL CORPORATION STREET 2: 800 BOYLSTON STREET, SUITE 3300 CITY: BOSTON STATE: MA ZIP: 02199 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: Syneos Health, Inc. CENTRAL INDEX KEY: 0001610950 STANDARD INDUSTRIAL CLASSIFICATION: SERVICES-COMMERCIAL PHYSICAL & BIOLOGICAL RESEARCH [8731] IRS NUMBER: 273403111 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 1030 SYNC STREET CITY: MORRISVILLE STATE: NC ZIP: 27560 BUSINESS PHONE: 919-876-9300 MAIL ADDRESS: STREET 1: 1030 SYNC STREET CITY: MORRISVILLE STATE: NC ZIP: 27560 FORMER COMPANY: FORMER CONFORMED NAME: INC Research Holdings, Inc. DATE OF NAME CHANGE: 20140616 4 1 form4.xml FORM 4 X0306 4 2021-05-14 0001610950 Syneos Health, Inc. SYNH 0001034196 ADVENT INTERNATIONAL CORP/MA PRUDENTIAL TOWER, 800 BOYLSTON STREET SUITE 3300 BOSTON MA 02199-8069 true 0001556190 Advent Partners GPE VII Limited Partnership C/O ADVENT INTERNATIONAL CORPORATION 800 BOYLSTON STREET, SUITE 3300 BOSTON MA 02199-8069 true 0001616578 Advent Partners GPE VII 2014 Limited Partnership C/O ADVENT INTERNATIONAL CORPORATION 800 BOYLSTON STREET, SUITE 3300 BOSTON MA 02199-8069 true 0001559259 Advent Partners GPE VII-A Limited Partnership C/O ADVENT INTERNATIONAL CORPORATION 800 BOYLSTON STREET, SUITE 3300 BOSTON MA 02199-8069 true 0001616577 Advent Partners GPE VII-A 2014 Limited Partnership C/O ADVENT INTERNATIONAL CORPORATION 800 BOYLSTON STREET, SUITE 3300 BOSTON MA 02199-8069 true 0001561808 Advent Partners GPE VII Cayman Limited Partnership C/O ADVENT INTERNATIONAL CORPORATION 800 BOYLSTON STREET, SUITE 3300 BOSTON MA 02199-8069 true 0001616563 Advent Partners GPE VII 2014 Cayman Limited Partnership C/O ADVENT INTERNATIONAL CORPORATION 800 BOYLSTON STREET, SUITE 3300 BOSTON MA 02199-8069 true 0001559260 Advent Partners GPE VII-A Cayman Limited Partnership C/O ADVENT INTERNATIONAL CORPORATION 800 BOYLSTON STREET, SUITE 3300 BOSTON MA 02199-8069 true 0001563878 Advent Partners GPE VII-B Cayman Limited Partnership C/O ADVENT INTERNATIONAL CORPORATION 800 BOYLSTON STREET, SUITE 3300 BOSTON MA 02199-8069 true 0001616564 Advent Partners GPE VII-A 2014 Cayman Limited Partnership C/O ADVENT INTERNATIONAL CORPORATION 800 BOYLSTON STREET, SUITE 3300 BOSTON MA 02199-8069 true Class A Common Stock 2021-05-14 4 S 0 448942 81.04 D 6307489 I See Notes See Exhibit 99.1 for text of footnote (1). See Exhibit 99.1 for text of footnote (2). See Exhibit 99.1 for text of footnote (3). See Exhibit 99.1 for text of footnote (4). See Exhibit 99.1 for text of footnote (5). Exhibit 99.1 (Footnotes to Form 4) and Exhibit 99.2 (Signatures and Joint Filer Information) are incorporated herein by reference. This Form 4 is the third of six Form 4s being filed relating to the same event. This Form 4 has been split into six filings because there are more than 10 Reporting Persons in total, and the SEC's EDGAR filing system limits a single Form 4 to a maximum of 10. Each part will be filed by Designated Filer, Advent International Corporation. See Exhibit 99.2 2021-05-18 EX-99.1 2 brhc10024852_ex99-1.htm EXHIBIT 99.1
Exhibit 99.1

Name and Address of Reporting Person:
Advent International Corporation
  Prudential Tower, 800 Boylston Street, Suite 3300
  Boston, MA 02199-8069
   
Issuer Name and Ticker or Trading Symbol:
Syneos Health, Inc. [SYNH]
Date of Earliest Transaction Required to be Reported
  
(Month/Day/Year):
May 14, 2021

Footnotes to Form 4

(1) Pursuant to an underwriting agreement dated May 3, 2021, and in connection with the registered public offering of 7,000,000 shares of common stock, par value $0.001 per share of the Issuer (the "Common Stock"), which offering was consummated on May 6, 2021 (the “Offering”), the underwriters of the Offering partially exercised their option to purchase additional shares of Common Stock from the selling shareholders of the Issuer (the "Overallotment Option"), which closing occurred on May 14, 2021.

(2) Represents shares of Class A Common Stock (“Common Stock”) of Syneos Health, Inc. (the “Issuer”) held by and sold in connection with the closing of the Overallotment Option by the following entities: 7,672 shares sold by Advent International GPE VIII-C Limited Partnership (“GPE VIII-C”) and 441,270 shares sold by Double Eagle Investor Holdings, L.P. (“Double Eagle Investor Holdings”), of which: 92 shares were indirectly sold by Advent Partners GPE VII Limited Partnership, 234 shares were indirectly sold by Advent Partners GPE VII 2014 Limited Partnership, 216 shares were indirectly sold by Advent Partners GPE VII-A Limited Partnership, 642 shares were indirectly sold by Advent Partners GPE VII-A 2014 Limited Partnership, 1,560 shares were indirectly sold by Advent Partners GPE VII (Cayman) Limited Partnership, 528 shares were indirectly sold by Advent Partners GPE VII 2014 Cayman Limited Partnership, 413 shares were indirectly sold by Advent Partners GPE VII-A (Cayman) Limited Partnership, 2,139 shares were indirectly sold by Advent Partners GPE VII-B (Cayman) Limited Partnership, 372 shares were indirectly sold by Advent Partners GPE VII-A 2014 (Cayman) Limited Partnership (collectively, the “Advent Partners GPE VII Funds”); 19,537 shares were indirectly sold by Advent International GPE VII-A Limited Partnership, 43,346 shares were indirectly sold by Advent International GPE VII-E Limited Partnership, 3,388 shares were indirectly sold by Advent International GPE VII-H Limited Partnership (collectively, the “GPE VII GP Funds”); 21,108 shares were indirectly sold by Advent International GPE VII Limited Partnership, 60,178 shares were indirectly sold by Advent International GPE VII-B Limited Partnership, 19,124 shares were indirectly sold by Advent International GPE VII-C Limited Partnership, 12,638 shares were indirectly sold by Advent International GPE VII-D Limited Partnership, 5,580 shares were indirectly sold by Advent International GPE VII-F Limited Partnership, 5,580 shares were indirectly sold by Advent International GPE VII-G Limited Partnership (collectively, the “GPE VII GP S.a.r.l. Funds”); 14,221 shares were indirectly sold by Advent International GPE VIII Limited Partnership, 47,105 shares were indirectly sold by Advent International GPE VIII-B Limited Partnership, 16,715 shares were indirectly sold by Advent International GPE VIII-B-1 Limited Partnership, 12,463 shares were indirectly sold by Advent International GPE VIII-B-2 Limited Partnership, 19,461 shares were indirectly sold by Advent International GPE VIII-B-3 Limited Partnership, 6,561 shares were indirectly sold by Advent International GPE VIII-D Limited Partnership, 1,944 shares were indirectly sold by Advent International GPE VIII-F Limited Partnership, 17,225 shares were indirectly sold by Advent International GPE VIII-H Limited Partnership, 16,018 shares were indirectly sold by Advent International GPE VIII-I Limited Partnership, 15,741 shares were indirectly sold by Advent International GPE VIII-J Limited Partnership (collectively, the “GPE VIII GP S.a.r.l. Funds”); 33,356 shares were indirectly sold by Advent International GPE VIII-A Limited Partnership, 7,307 shares were indirectly sold by Advent International GPE VIII-E Limited Partnership, 12,393 shares were indirectly sold by Advent International GPE VIII-G Limited Partnership, 6,820 shares were indirectly sold by Advent International GPE VIII-K Limited Partnership, 6,712 shares were indirectly sold by Advent International GPE VIII-L Limited Partnership (collectively, the “GPE VIII GP Funds”); 3,277 shares were indirectly sold by Advent Partners GPE VIII Cayman Limited Partnership, 436 shares were indirectly sold by Advent Partners GPE VIII-A Cayman Limited Partnership, 5,607 shares were indirectly sold by Advent Partners GPE VIII-B Cayman Limited Partnership, 550 shares were indirectly sold by Advent Partners GPE VIII Limited Partnership, and 683 shares were indirectly sold by Advent Partners GPE VIII-A Limited Partnership (collectively, the “Advent Partners GPE VIII Funds”).
 
1
(3) Following the Overallotment Option, Advent manages funds that collectively own 6,307,489 shares, which are represented as follows: 107,783 shares held directly by GPE VIII-C and 6,199,706 shares held directly by Double Eagle Investor Holdings, of which: 1,286 shares are indirectly owned by Advent Partners GPE VII Limited Partnership, 3,293 shares are indirectly owned by Advent Partners GPE VII 2014 Limited Partnership, 3,041 shares are indirectly owned by Advent Partners GPE VII-A Limited Partnership, 9,026 shares are indirectly owned by Advent Partners GPE VII-A 2014 Limited Partnership, 21,925 shares are indirectly owned by Advent Partners GPE VII (Cayman) Limited Partnership, 7,411 shares are indirectly owned by Advent Partners GPE VII 2014 Cayman Limited Partnership, 5,796 shares are indirectly owned by Advent Partners GPE VII-A (Cayman) Limited Partnership, 30,055 shares are indirectly owned by Advent Partners GPE VII-B (Cayman) Limited Partnership, 5,230 shares are indirectly owned by Advent Partners GPE VII-A 2014 (Cayman) Limited Partnership; 274,489 shares are indirectly owned by Advent International GPE VII-A Limited Partnership, 609,001 shares are indirectly owned by Advent International GPE VII-E Limited Partnership, 47,602 shares are indirectly owned by Advent International GPE VII-H Limited Partnership; 296,560 shares are indirectly owned by Advent International GPE VII Limited Partnership, 845,470 shares are indirectly owned by Advent International GPE VII-B Limited Partnership, 268,680 shares are indirectly owned by Advent International GPE VII-C Limited Partnership, 177,555 shares are indirectly owned by Advent International GPE VII-D Limited Partnership, 78,401 shares are indirectly owned by Advent International GPE VII-F Limited Partnership, 78,401 shares are indirectly owned by Advent International GPE VII-G Limited Partnership; 199,796 shares are indirectly owned by Advent International GPE VIII Limited Partnership, 661,806 shares are indirectly owned by Advent International GPE VIII-B Limited Partnership, 234,841 shares are indirectly owned by Advent International GPE VIII-B-1 Limited Partnership, 175,095 shares are indirectly owned by Advent International GPE VIII-B-2 Limited Partnership, 273,417 shares are indirectly owned by Advent International GPE VIII-B-3 Limited Partnership, 92,178 shares are indirectly owned by Advent International GPE VIII-D Limited Partnership, 27,318 shares are indirectly owned by Advent International GPE VIII-F Limited Partnership, 242,012 shares are indirectly owned by Advent International GPE VIII-H Limited Partnership, 225,045 shares are indirectly owned by Advent International GPE VIII-I Limited Partnership, 221,153 shares are indirectly owned by Advent International GPE VIII-J Limited Partnership; 468,647 shares are indirectly owned by Advent International GPE VIII-A Limited Partnership, 102,661 shares are indirectly owned by Advent International GPE VIII-E Limited Partnership, 174,118 shares are indirectly owned by Advent International GPE VIII-G Limited Partnership, 95,824 shares are indirectly owned by Advent International GPE VIII-K Limited Partnership, 94,303 shares are indirectly owned by Advent International GPE VIII-L Limited Partnership; 46,045 shares are indirectly owned by Advent Partners GPE VIII Cayman Limited Partnership, 6,131 shares are indirectly owned by Advent Partners GPE VIII-A Cayman Limited Partnership, 78,774 shares are indirectly owned by Advent Partners GPE VIII-B Cayman Limited Partnership, 7,727 shares are indirectly owned by Advent Partners GPE VIII Limited Partnership, and 9,593 shares are indirectly owned by Advent Partners GPE VIII-A Limited Partnership.

(4) Advent is the Sole Member of Double Eagle GP, LLC, which in turn is the General Partner of Double Eagle Investor Holdings. Advent is the Manager of Advent International GPE VII, LLC (“GPE VII LLC”) and Advent International GPE VIII, LLC (“GPE VIII LLC”).

GPE VII, LLC is the General Partner of GPE VII GP S.a.r.l. (“GPE VII GP S.a.r.l.”), GPE VII GP Limited Partnership (“GPE VII GP”), and the Advent Partners GPE VII Funds. GPE VII GP is the General Partner of the GPE VII GP Funds. GPE VII GP S.a.r.l. is the General Partner of the GPE VII GP S.a.r.l. Funds.

GPE VIII LLC is the General Partner of GPE VIII GP Limited Partnership (“GPE VIII GP”), GPE VIII GP S.a.r.l. (“GPE VIII GP S.a.r.l.”), and AP GPE VIII GP Limited Partnership (“AP GPE VIII GP”). GPE VIII GP S.a.r.l. is the General Partner of the GPE VIII GP S.a.r.l. Funds and of GPE VIII-C. GPE VIII GP is the General Partner of the GPE VIII GP Funds. AP GPE VIII GP is the General Partner of the Advent Partners GPE VIII Funds.

(5) Each of the entities named above are referred to herein as “Reporting Persons.” Each Reporting Person disclaims Section 16 beneficial ownership of the shares reported herein except to the extent of its respective pecuniary interest therein, if any, and the inclusion of these shares in this report shall not be deemed an admission of beneficial ownership of all the reported shares for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or any other purpose.


2
 EX-99.2 3 brhc10024852_ex99-2.htm EXHIBIT 99.2
Exhibit 99.2

Joint Filer Information

Name of Joint Filer:
Double Eagle Investor Holdings, L.P.
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
Issuer Name and Ticker or Trading Symbol:
Syneos Health, Inc. [SYNH]

Date of Earliest Transaction Required
  
to be Reported (Month/Day/Year):
May 14, 2021
Designated Filer:
Advent International Corporation

Signature:

DOUBLE EAGLE INVESTOR HOLDINGS, L.P.
By: Double Eagle GP, LLC, its General Partner
By: Advent International Corporation, its Sole Member

By: /s/ Michael Ristaino
  
Name: Michael Ristaino
  
Title: Vice President of Finance - Fund Administration
  

May 18, 2021
Date

Page 1 of 48
Joint Filer Information

Name of Joint Filer:
Double Eagle GP, 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
Issuer Name and Ticker or Trading Symbol:
Syneos Health, Inc. [SYNH]

Date of Earliest Transaction Required
  
to be Reported (Month/Day/Year):
May 14, 2021
Designated Filer:
Advent International Corporation

Signature:

DOUBLE EAGLE GP, LLC
By: Advent International Corporation, its Sole Member

By: /s/ Michael Ristaino  
Name: Michael Ristaino
  
Title: Vice President of Finance - Fund Administration
  

May 18, 2021
Date

Page 2 of 48
Joint Filer Information

Name of Joint Filer:
Advent International GPE VIII-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
Issuer Name and Ticker or Trading Symbol:
Syneos Health, Inc. [SYNH]

Date of Earliest Transaction Required  
to be Reported (Month/Day/Year):
May 14, 2021
Designated Filer:
Advent International Corporation

Signature:
     
ADVENT INTERNATIONAL GPE VIII-C LIMITED PARTNERSHIP
    
By: GPE VIII GP S.à r.l., its General Partner
    
By: Advent International GPE VIII, LLC, its Manager
 /s/ Jarlyth Gibson  
By: Advent International Corporation, its Manager
Jarlyth Gibson, Manager
  

By: /s/ Michael Ristaino
 
Name: Michael Ristaino
  
Title: Vice President of Finance - Fund Administration
  

May 18, 2021
Date
 
Page 3 of 48
Joint Filer Information

Name of Joint Filer:
GPE VIII 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
Issuer Name and Ticker or Trading Symbol:
Syneos Health, Inc. [SYNH]

Date of Earliest Transaction Required
  
to be Reported (Month/Day/Year):
May 14, 2021
Designated Filer:
Advent International Corporation

Signature:
     
GPE VIII GP S.à r.l.
    
By: Advent International GPE VIII, LLC, its Manager
 /s/ Jarlyth Gibson  
By: Advent International Corporation, its Manager
Jarlyth Gibson, Manager
  

By: /s/ Michael Ristaino
 
Name: Michael Ristaino
  
Title: Vice President of Finance - Fund Administration
  

May 18, 2021
Date
 
Page 4 of 48
Joint Filer Information

Name of Joint Filer:
GPE VIII 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
Issuer Name and Ticker or Trading Symbol:
Syneos Health, Inc. [SYNH]

Date of Earliest Transaction Required  
to be Reported (Month/Day/Year):
May 14, 2021
Designated Filer:
Advent International Corporation

Signature:

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

By: /s/ Michael Ristaino
 
Name: Michael Ristaino
  
Title: Vice President of Finance - Fund Administration
  

May 18, 2021
Date
 
Page 5 of 48
Joint Filer Information

Name of Joint Filer:
Advent International GPE VIII, 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
Issuer Name and Ticker or Trading Symbol:
 Syneos Health, Inc. [SYNH]

Date of Earliest Transaction Required  
to be Reported (Month/Day/Year):
May 14, 2021
Designated Filer:
Advent International Corporation

Signature:

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

By: /s/ Michael Ristaino
 
Name: Michael Ristaino
  
Title: Vice President of Finance - Fund Administration
  

May 18, 2021
Date
 
Page 6 of 48
Joint Filer Information

Name of Joint Filer:
GPE VII 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
Issuer Name and Ticker or Trading Symbol:
Syneos Health, Inc. [SYNH]

Date of Earliest Transaction Required  
to be Reported (Month/Day/Year):
May 14, 2021
Designated Filer:
Advent International Corporation

Signature:
     
GPE VII GP S.à r.l.
    
By: Advent International GPE VIII, LLC, its Manager
 /s/ Jarlyth Gibson  
By: Advent International Corporation, its Manager
Jarlyth Gibson, Manager
  

By: /s/ Michael Ristaino
 
Name: Michael Ristaino
  
Title: Vice President of Finance - Fund Administration
  

May 18, 2021
Date
 
Page 7 of 48
Joint Filer Information

Name of Joint Filer:
GPE VII 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
Issuer Name and Ticker or Trading Symbol:
Syneos Health, Inc. [SYNH]

Date of Earliest Transaction Required  
to be Reported (Month/Day/Year):
May 14, 2021
Designated Filer:
Advent International Corporation

Signature:

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

By: /s/ Michael Ristaino
 
Name: Michael Ristaino
  
Title: Vice President of Finance - Fund Administration
  

May 18, 2021
Date
 
Page 8 of 48
Joint Filer Information

Name of Joint Filer:
Advent International GPE VII, 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
Issuer Name and Ticker or Trading Symbol:
Syneos Health, Inc. [SYNH]

Date of Earliest Transaction Required  
to be Reported (Month/Day/Year):
May 14, 2021
Designated Filer:
Advent International Corporation

Signature:

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

By: /s/ Michael Ristaino
 
Name: Michael Ristaino
  
Title: Vice President of Finance - Fund Administration
  

May 18, 2021
Date
 
Page 9 of 48
Joint Filer Information

Name of Joint Filer:
AP GPE VIII 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
Issuer Name and Ticker or Trading Symbol:
Syneos Health, Inc. [SYNH]

Date of Earliest Transaction Required
  
to be Reported (Month/Day/Year):
May 14, 2021
Designated Filer:
Advent International Corporation

Signature:

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

By: /s/ Michael Ristaino
 
Name: Michael Ristaino
  
Title: Vice President of Finance - Fund Administration
  

May 18, 2021
Date
 
Page 10 of 48
Joint Filer Information

Name of Joint Filer:
Advent Partners GPE VIII 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
Issuer Name and Ticker or Trading Symbol:
Syneos Health, Inc. [SYNH]

Date of Earliest Transaction Required  
to be Reported (Month/Day/Year):
May 14, 2021
Designated Filer:
Advent International Corporation

Signature:

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

By: /s/ Michael Ristaino
 
Name: Michael Ristaino
  
Title: Vice President of Finance - Fund Administration
  

May 18, 2021
Date
 
Page 11 of 48
Joint Filer Information

Name of Joint Filer:
Advent Partners GPE VIII-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
Issuer Name and Ticker or Trading Symbol:
Syneos Health, Inc. [SYNH]

Date of Earliest Transaction Required  
to be Reported (Month/Day/Year):
May 14, 2021
Designated Filer:
  
Advent International Corporation

Signature:

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

By: /s/ Michael Ristaino
 
Name: Michael Ristaino
  
Title: Vice President of Finance - Fund Administration
  

May 18, 2021
Date
 
Page 12 of 48
Joint Filer Information

Name of Joint Filer:
Advent Partners GPE VIII 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
Issuer Name and Ticker or Trading Symbol:
Syneos Health, Inc. [SYNH]

Date of Earliest Transaction Required  
to be Reported (Month/Day/Year):
May 14, 2021
Designated Filer:
Advent International Corporation

Signature:

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

By: /s/ Michael Ristaino
 
Name: Michael Ristaino
  
Title: Vice President of Finance - Fund Administration
  

May 18, 2021
Date
 
Page 13 of 48
Joint Filer Information

Name of Joint Filer:
Advent Partners GPE VIII-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
Issuer Name and Ticker or Trading Symbol:
Syneos Health, Inc. [SYNH]

Date of Earliest Transaction Required  
to be Reported (Month/Day/Year):
May 14, 2021
Designated Filer:
  
Advent International Corporation

Signature:

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

By: /s/ Michael Ristaino
 
Name: Michael Ristaino
  
Title: Vice President of Finance - Fund Administration
  

May 18, 2021
Date
 
Page 14 of 48
Joint Filer Information

Name of Joint Filer:
Advent Partners GPE VIII-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
Issuer Name and Ticker or Trading Symbol:
Syneos Health, Inc. [SYNH]

Date of Earliest Transaction Required
to be Reported (Month/Day/Year):
May 14, 2021
Designated Filer:
Advent International Corporation

Signature:

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

By: /s/ Michael Ristaino
 
Name: Michael Ristaino
  
Title: Vice President of Finance - Fund Administration
  

May 18, 2021
Date
 
Page 15 of 48
Joint Filer Information

Name of Joint Filer:
Advent International GPE VII-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
Issuer Name and Ticker or Trading Symbol:
Syneos Health, Inc. [SYNH]

Date of Earliest Transaction Required
  
to be Reported (Month/Day/Year):
May 14, 2021
Designated Filer:
Advent International Corporation

Signature:

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

By: /s/ Michael Ristaino
 
Name: Michael Ristaino
  
Title: Vice President of Finance - Fund Administration
  

May 18, 2021
Date
 
Page 16 of 48
Joint Filer Information

Name of Joint Filer:
Advent International GPE VII-E 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
Issuer Name and Ticker or Trading Symbol:
Syneos Health, Inc. [SYNH]

Date of Earliest Transaction Required  
to be Reported (Month/Day/Year):
May 14, 2021
Designated Filer:
Advent International Corporation

Signature:

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

By: /s/ Michael Ristaino
 
Name: Michael Ristaino
  
Title: Vice President of Finance - Fund Administration
  

May 18, 2021
Date
 
Page 17 of 48
Joint Filer Information

Name of Joint Filer:
Advent International GPE VII-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
Issuer Name and Ticker or Trading Symbol:
Syneos Health, Inc. [SYNH]

Date of Earliest Transaction Required  
to be Reported (Month/Day/Year):
May 14, 2021
Designated Filer:
Advent International Corporation

Signature:

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

By: /s/ Michael Ristaino
 
Name: Michael Ristaino
  
Title: Vice President of Finance - Fund Administration
  

May 18, 2021
Date
 
Page 18 of 48
Joint Filer Information

Name of Joint Filer:
Advent Partners GPE VII 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
Issuer Name and Ticker or Trading Symbol:
Syneos Health, Inc. [SYNH]

Date of Earliest Transaction Required  
to be Reported (Month/Day/Year):
May 14, 2021
Designated Filer:
Advent International Corporation

Signature:

ADVENT PARTNERS GPE VII LIMITED PARTNERSHIP
By: Advent International GPE VII, LLC, its General Partner
By: Advent International Corporation, its Manager

By: /s/ Michael Ristaino
 
Name: Michael Ristaino
  
Title: Vice President of Finance - Fund Administration
  

May 18, 2021
Date
 
Page 19 of 48
Joint Filer Information

Name of Joint Filer:
Advent Partners GPE VII 2014 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
Issuer Name and Ticker or Trading Symbol:
Syneos Health, Inc. [SYNH]

Date of Earliest Transaction Required  
to be Reported (Month/Day/Year):
May 14, 2021
Designated Filer:
Advent International Corporation

Signature:

ADVENT PARTNERS GPE VII 2014 LIMITED PARTNERSHIP
By: Advent International GPE VII, LLC, its General Partner
By: Advent International Corporation, its Manager

By: /s/ Michael Ristaino
 
Name: Michael Ristaino
  
Title: Vice President of Finance - Fund Administration
  

May 18, 2021
Date
 
Page 20 of 48
Joint Filer Information

Name of Joint Filer:
Advent Partners GPE VII-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
Issuer Name and Ticker or Trading Symbol:
Syneos Health, Inc. [SYNH]

Date of Earliest Transaction Required  
to be Reported (Month/Day/Year):
May 14, 2021
Designated Filer:
Advent International Corporation

Signature:

ADVENT PARTNERS GPE VII-A LIMITED PARTNERSHIP
By: Advent International GPE VII, LLC, its General Partner
By: Advent International Corporation, its Manager

By: /s/ Michael Ristaino
 
Name: Michael Ristaino
  
Title: Vice President of Finance - Fund Administration
  

May 18, 2021
Date
 
Page 21 of 48
Joint Filer Information

Name of Joint Filer:
Advent Partners GPE VII-A 2014 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
Issuer Name and Ticker or Trading Symbol:
Syneos Health, Inc. [SYNH]

Date of Earliest Transaction Required  
to be Reported (Month/Day/Year):
May 14, 2021
Designated Filer:
Advent International Corporation

Signature:

ADVENT PARTNERS GPE VII-A 2014 LIMITED PARTNERSHIP
By: Advent International GPE VII, LLC, its General Partner
By: Advent International Corporation, its Manager

By: /s/ Michael Ristaino
 
Name: Michael Ristaino
  
Title: Vice President of Finance - Fund Administration
  

May 18, 2021
Date
 
Page 22 of 48
Joint Filer Information

Name of Joint Filer:
Advent Partners GPE VII 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
Issuer Name and Ticker or Trading Symbol:
Syneos Health, Inc. [SYNH]

Date of Earliest Transaction Required  
to be Reported (Month/Day/Year):
May 14, 2021
Designated Filer:
Advent International Corporation

Signature:

ADVENT PARTNERS GPE VII CAYMAN LIMITED PARTNERSHIP
By: Advent International GPE VII, LLC, its General Partner
By: Advent International Corporation, its Manager

By: /s/ Michael Ristaino
 
Name: Michael Ristaino
  
Title: Vice President of Finance - Fund Administration
  

May 18, 2021
Date
 
Page 23 of 48
Joint Filer Information

Name of Joint Filer:
Advent Partners GPE VII 2014 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
Issuer Name and Ticker or Trading Symbol:
Syneos Health, Inc. [SYNH]

Date of Earliest Transaction Required  
to be Reported (Month/Day/Year):
May 14, 2021
Designated Filer:
Advent International Corporation

Signature:

ADVENT PARTNERS GPE VII 2014 CAYMAN LIMITED PARTNERSHIP
By: Advent International GPE VII, LLC, its General Partner
By: Advent International Corporation, its Manager

By: /s/ Michael Ristaino
 
Name: Michael Ristaino
  
Title: Vice President of Finance - Fund Administration
  

May 18, 2021
Date
 
Page 24 of 48
Joint Filer Information

Name of Joint Filer:
Advent Partners GPE VII-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
Issuer Name and Ticker or Trading Symbol:
Syneos Health, Inc. [SYNH]

Date of Earliest Transaction Required  
to be Reported (Month/Day/Year):
May 14, 2021
Designated Filer:
Advent International Corporation

Signature:

ADVENT PARTNERS GPE VII-A CAYMAN LIMITED PARTNERSHIP
By: Advent International GPE VII, LLC, its General Partner
By: Advent International Corporation, its Manager

By: /s/ Michael Ristaino
 
Name: Michael Ristaino
  
Title: Vice President of Finance - Fund Administration
  

May 18, 2021
Date
 
Page 25 of 48
Joint Filer Information

Name of Joint Filer:
Advent Partners GPE VII-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
Issuer Name and Ticker or Trading Symbol:
Syneos Health, Inc. [SYNH]

Date of Earliest Transaction Required  
to be Reported (Month/Day/Year):
May 14, 2021
Designated Filer:
Advent International Corporation

Signature:

ADVENT PARTNERS GPE VII-B CAYMAN LIMITED PARTNERSHIP
By: Advent International GPE VII, LLC, its General Partner
By: Advent International Corporation, its Manager

By: /s/ Michael Ristaino
 
Name: Michael Ristaino
  
Title: Vice President of Finance - Fund Administration
  

May 18, 2021
Date
 
Page 26 of 48
Joint Filer Information

Name of Joint Filer:
Advent Partners GPE VII-A 2014 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
Issuer Name and Ticker or Trading Symbol:
Syneos Health, Inc. [SYNH]

Date of Earliest Transaction Required  
to be Reported (Month/Day/Year):
May 14, 2021
Designated Filer:
Advent International Corporation

Signature:

ADVENT PARTNERS GPE VII-A 2014 CAYMAN LIMITED PARTNERSHIP
By: Advent International GPE VII, LLC, its General Partner
By: Advent International Corporation, its Manager

By: /s/ Michael Ristaino
 
Name: Michael Ristaino
  
Title: Vice President of Finance - Fund Administration
  

May 18, 2021
Date
 
Page 27 of 48
Joint Filer Information

Name of Joint Filer:
Advent International GPE VIII 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
Issuer Name and Ticker or Trading Symbol:
Syneos Health, Inc. [SYNH]

Date of Earliest Transaction Required  
to be Reported (Month/Day/Year):
May 14, 2021
Designated Filer:
Advent International Corporation

Signature:

ADVENT INTERNATIONAL GPE VIII LIMITED PARTNERSHIP
By: GPE VII GP S.à r.l., its general partner
By: Advent International GPE VIII, LLC, its Manager
 /s/ Jarlyth Gibson  
By: Advent International Corporation, its Manager
Jarlyth Gibson, Manager
  

By: /s/ Michael Ristaino
 
Name: Michael Ristaino
  
Title: Vice President of Finance - Fund Administration
  

May 18, 2021
Date
 
Page 28 of 48
Joint Filer Information

Name of Joint Filer:
Advent International GPE VIII-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
Issuer Name and Ticker or Trading Symbol:
Syneos Health, Inc. [SYNH]

Date of Earliest Transaction Required  
to be Reported (Month/Day/Year):
May 14, 2021
Designated Filer:
Advent International Corporation

Signature:

ADVENT INTERNATIONAL GPE VIII-B LIMITED PARTNERSHIP
By: GPE VII GP S.à r.l., its general partner
By: Advent International GPE VIII, LLC, its Manager
 /s/ Jarlyth Gibson  
By: Advent International Corporation, its Manager
Jarlyth Gibson, Manager
  

By: /s/ Michael Ristaino
 
Name: Michael Ristaino
  
Title: Vice President of Finance - Fund Administration
  

May 18, 2021
Date
 
Page 29 of 48
Joint Filer Information

Name of Joint Filer:
Advent International GPE VIII-B-1 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
Issuer Name and Ticker or Trading Symbol:
Syneos Health, Inc. [SYNH]

Date of Earliest Transaction Required  
to be Reported (Month/Day/Year):
May 14, 2021
Designated Filer:
Advent International Corporation

Signature:

ADVENT INTERNATIONAL GPE VIII-B-1 LIMITED PARTNERSHIP
By: GPE VII GP S.à r.l., its general partner
By: Advent International GPE VIII, LLC, its Manager
 /s/ Jarlyth Gibson  
By: Advent International Corporation, its Manager
Jarlyth Gibson, Manager
  

By: /s/ Michael Ristaino
 
Name: Michael Ristaino
  
Title: Vice President of Finance - Fund Administration
  

May 18, 2021
Date
 
Page 30 of 48
Joint Filer Information

Name of Joint Filer:
Advent International GPE VIII-B-2 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
Issuer Name and Ticker or Trading Symbol:
Syneos Health, Inc. [SYNH]

Date of Earliest Transaction Required  
to be Reported (Month/Day/Year):
May 14, 2021
Designated Filer:
Advent International Corporation

Signature:

ADVENT INTERNATIONAL GPE VIII-B-2 LIMITED PARTNERSHIP
By: GPE VII GP S.à r.l., its general partner
By: Advent International GPE VIII, LLC, its Manager
 /s/ Jarlyth Gibson  
By: Advent International Corporation, its Manager
Jarlyth Gibson, Manager
  

By: /s/ Michael Ristaino
 
Name: Michael Ristaino
  
Title: Vice President of Finance - Fund Administration
  

May 18, 2021
Date
 
Page 31 of 48
Joint Filer Information

Name of Joint Filer:
Advent International GPE VIII-B-3 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
Issuer Name and Ticker or Trading Symbol:
Syneos Health, Inc. [SYNH]

Date of Earliest Transaction Required  
to be Reported (Month/Day/Year):
May 14, 2021
Designated Filer:
Advent International Corporation

Signature:

ADVENT INTERNATIONAL GPE VIII-B-3 LIMITED PARTNERSHIP
By: GPE VII GP S.à r.l., its general partner
By: Advent International GPE VIII, LLC, its Manager
 /s/ Jarlyth Gibson  
By: Advent International Corporation, its Manager
Jarlyth Gibson, Manager
  

By: /s/ Michael Ristaino
 
Name: Michael Ristaino
  
Title: Vice President of Finance - Fund Administration
  

May 18, 2021
Date
 
Page 32 of 48
Joint Filer Information

Name of Joint Filer:
Advent International GPE VIII-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
Issuer Name and Ticker or Trading Symbol:
Syneos Health, Inc. [SYNH]

Date of Earliest Transaction Required
  
to be Reported (Month/Day/Year):
May 14, 2021
Designated Filer:
Advent International Corporation

Signature:

ADVENT INTERNATIONAL GPE VIII-D LIMITED PARTNERSHIP
By: GPE VII GP S.à r.l., its general partner
By: Advent International GPE VIII, LLC, its Manager
 /s/ Jarlyth Gibson  
By: Advent International Corporation, its Manager
Jarlyth Gibson, Manager
  

By: /s/ Michael Ristaino
 
Name: Michael Ristaino
  
Title: Vice President of Finance - Fund Administration
  

May 18, 2021
Date
 
Page 33 of 48
Joint Filer Information

Name of Joint Filer:
Advent International GPE VIII-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
Issuer Name and Ticker or Trading Symbol:
Syneos Health, Inc. [SYNH]

Date of Earliest Transaction Required  
to be Reported (Month/Day/Year):
May 14, 2021
Designated Filer:
Advent International Corporation

Signature:

ADVENT INTERNATIONAL GPE VIII-F LIMITED PARTNERSHIP
By: GPE VII GP S.à r.l., its general partner
By: Advent International GPE VIII, LLC, its Manager
 /s/ Jarlyth Gibson  
By: Advent International Corporation, its Manager
Jarlyth Gibson, Manager
  

By: /s/ Michael Ristaino
 
Name: Michael Ristaino
  
Title: Vice President of Finance - Fund Administration
  

May 18, 2021
Date
 
Page 34 of 48
Joint Filer Information

Name of Joint Filer:
Advent International GPE VIII-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
Issuer Name and Ticker or Trading Symbol:
Syneos Health, Inc. [SYNH]

Date of Earliest Transaction Required  
to be Reported (Month/Day/Year):
May 14, 2021
Designated Filer:
Advent International Corporation

Signature:

ADVENT INTERNATIONAL GPE VIII-H LIMITED PARTNERSHIP
By: GPE VII GP S.à r.l., its general partner
By: Advent International GPE VIII, LLC, its Manager
 /s/ Jarlyth Gibson  
By: Advent International Corporation, its Manager
Jarlyth Gibson, Manager
  

By: /s/ Michael Ristaino
 
Name: Michael Ristaino
  
Title: Vice President of Finance - Fund Administration
  

May 18, 2021
Date
 
Page 35 of 48
Joint Filer Information

Name of Joint Filer:
Advent International GPE VIII-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
Issuer Name and Ticker or Trading Symbol:
Syneos Health, Inc. [SYNH]

Date of Earliest Transaction Required
  
to be Reported (Month/Day/Year):
May 14, 2021
Designated Filer:
Advent International Corporation

Signature:

ADVENT INTERNATIONAL GPE VIII-I LIMITED PARTNERSHIP
By: GPE VII GP S.à r.l., its general partner
By: Advent International GPE VIII, LLC, its Manager
 /s/ Jarlyth Gibson  
By: Advent International Corporation, its Manager
Jarlyth Gibson, Manager
  

By: /s/ Michael Ristaino
 
Name: Michael Ristaino
  
Title: Vice President of Finance - Fund Administration
  

May 18, 2021
Date
 
Page 36 of 48
Joint Filer Information

Name of Joint Filer:
Advent International GPE VIII-J 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
Issuer Name and Ticker or Trading Symbol:
Syneos Health, Inc. [SYNH]

Date of Earliest Transaction Required  
to be Reported (Month/Day/Year):
May 14, 2021
Designated Filer:
Advent International Corporation

Signature:

ADVENT INTERNATIONAL GPE VIII-J LIMITED PARTNERSHIP
By: GPE VII GP S.à r.l., its general partner
By: Advent International GPE VIII, LLC, its Manager
 /s/ Jarlyth Gibson  
By: Advent International Corporation, its Manager
Jarlyth Gibson, Manager
  

By: /s/ Michael Ristaino
 
Name: Michael Ristaino
  
Title: Vice President of Finance - Fund Administration
  

May 18, 2021
Date
 
Page 37 of 48
Joint Filer Information

Name of Joint Filer:
Advent International GPE VIII-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
Issuer Name and Ticker or Trading Symbol:
Syneos Health, Inc. [SYNH]

Date of Earliest Transaction Required  
to be Reported (Month/Day/Year):
May 14, 2021
Designated Filer:
Advent International Corporation

Signature:

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

By: /s/ Michael Ristaino
 
Name: Michael Ristaino
  
Title: Vice President of Finance - Fund Administration
  

May 18, 2021
Date
 
Page 38 of 48
Joint Filer Information

Name of Joint Filer:
Advent International GPE VIII-E 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
Issuer Name and Ticker or Trading Symbol:
Syneos Health, Inc. [SYNH]

Date of Earliest Transaction Required  
to be Reported (Month/Day/Year):
May 14, 2021
Designated Filer:
Advent International Corporation

Signature:

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

By: /s/ Michael Ristaino
 
Name: Michael Ristaino
  
Title: Vice President of Finance - Fund Administration
  

May 18, 2021
Date
 
Page 39 of 48
Joint Filer Information

Name of Joint Filer:
Advent International GPE VIII-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
Issuer Name and Ticker or Trading Symbol:
Syneos Health, Inc. [SYNH]

Date of Earliest Transaction Required  
to be Reported (Month/Day/Year):
May 14, 2021
Designated Filer:
Advent International Corporation

Signature:

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

By: /s/ Michael Ristaino
 
Name: Michael Ristaino
  
Title: Vice President of Finance - Fund Administration
  

May 18, 2021
Date
 
Page 40 of 48
Joint Filer Information

Name of Joint Filer:
Advent International GPE VIII-K 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
Issuer Name and Ticker or Trading Symbol:
Syneos Health, Inc. [SYNH]

Date of Earliest Transaction Required  
to be Reported (Month/Day/Year):
May 14, 2021
Designated Filer:
Advent International Corporation

Signature:

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

By: /s/ Michael Ristaino
 
Name: Michael Ristaino
  
Title: Vice President of Finance - Fund Administration
  

May 18, 2021
Date
 
Page 41 of 48
Joint Filer Information

Name of Joint Filer:
Advent International GPE VIII-L 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
Issuer Name and Ticker or Trading Symbol:
Syneos Health, Inc. [SYNH]

Date of Earliest Transaction Required  
to be Reported (Month/Day/Year):
May 14, 2021
Designated Filer:
Advent International Corporation

Signature:

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

By: /s/ Michael Ristaino  
Name: Michael Ristaino
  
Title: Vice President of Finance - Fund Administration
  

May 18, 2021
Date
 
Page 42 of 48
Joint Filer Information

Name of Joint Filer:
Advent International GPE VII 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
Issuer Name and Ticker or Trading Symbol:
Syneos Health, Inc. [SYNH]

Date of Earliest Transaction Required  
to be Reported (Month/Day/Year):
May 14, 2021
Designated Filer:
Advent International Corporation

Signature:

ADVENT INTERNATIONAL GPE VII LIMITED PARTNERSHIP
By: GPE VII GP S.à r.l., its general partner
By: Advent International GPE VII, LLC, its Manager
 /s/ Jarlyth Gibson  
By: Advent International Corporation, its Manager
Jarlyth Gibson, Manager
  


By: /s/ Michael Ristaino
 
Name: Michael Ristaino
  
Title: Vice President of Finance - Fund Administration
  

May 18, 2021
Date
 
Page 43 of 48
Joint Filer Information

Name of Joint Filer:
Advent International GPE VII-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
Issuer Name and Ticker or Trading Symbol:
Syneos Health, Inc. [SYNH]

Date of Earliest Transaction Required  
to be Reported (Month/Day/Year):
May 14, 2021
Designated Filer:
Advent International Corporation

Signature:

ADVENT INTERNATIONAL GPE VII-B LIMITED PARTNERSHIP
By: GPE VII GP S.à r.l., its general partner
By: Advent International GPE VII, LLC, its Manager
 /s/ Jarlyth Gibson  
By: Advent International Corporation, its Manager
Jarlyth Gibson, Manager
  

By: /s/ Michael Ristaino
 
Name: Michael Ristaino
  
Title: Vice President of Finance - Fund Administration
  

May 18, 2021
Date
 
Page 44 of 48
Joint Filer Information

Name of Joint Filer:
Advent International GPE VII-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
Issuer Name and Ticker or Trading Symbol:
Syneos Health, Inc. [SYNH]

Date of Earliest Transaction Required  
to be Reported (Month/Day/Year):
May 14, 2021
Designated Filer:
Advent International Corporation

Signature:

ADVENT INTERNATIONAL GPE VII-C LIMITED PARTNERSHIP
By: GPE VII GP S.à r.l., its general partner
By: Advent International GPE VII, LLC, its Manager
 /s/ Jarlyth Gibson  
By: Advent International Corporation, its Manager
Jarlyth Gibson, Manager
  

By: /s/ Michael Ristaino
 
Name: Michael Ristaino
  
Title: Vice President of Finance - Fund Administration
  

May 18, 2021
Date
 
Page 45 of 48
Joint Filer Information

Name of Joint Filer:
Advent International GPE VII-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
Issuer Name and Ticker or Trading Symbol:
Syneos Health, Inc. [SYNH]

Date of Earliest Transaction Required  
to be Reported (Month/Day/Year):
May 14, 2021
Designated Filer:
Advent International Corporation

Signature:

ADVENT INTERNATIONAL GPE VII-D LIMITED PARTNERSHIP
By: GPE VII GP S.à r.l., its general partner
By: Advent International GPE VII, LLC, its Manager
 /s/ Jarlyth Gibson  
By: Advent International Corporation, its Manager
Jarlyth Gibson, Manager
  

By: /s/ Michael Ristaino
 
Name: Michael Ristaino
  
Title: Vice President of Finance - Fund Administration
  

May 18, 2021
Date
 
Page 46 of 48
Joint Filer Information

Name of Joint Filer:
Advent International GPE VII-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
Issuer Name and Ticker or Trading Symbol:
Syneos Health, Inc. [SYNH]

Date of Earliest Transaction Required
  
to be Reported (Month/Day/Year):
May 14, 2021
Designated Filer:
Advent International Corporation

Signature:

ADVENT INTERNATIONAL GPE VII-F LIMITED PARTNERSHIP
By: GPE VII GP S.à r.l., its general partner
By: Advent International GPE VII, LLC, its Manager
 /s/ Jarlyth Gibson  
By: Advent International Corporation, its Manager
Jarlyth Gibson, Manager
  

By: /s/ Michael Ristaino
 
Name: Michael Ristaino
  
Title: Vice President of Finance - Fund Administration
  

May 18, 2021
Date
 
Page 47 of 48
Joint Filer Information

Name of Joint Filer:
Advent International GPE VII-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
Issuer Name and Ticker or Trading Symbol:
Syneos Health, Inc. [SYNH]

Date of Earliest Transaction Required  
to be Reported (Month/Day/Year):
May 14, 2021
Designated Filer:
Advent International Corporation

Signature:

ADVENT INTERNATIONAL GPE VII-G LIMITED PARTNERSHIP
By: GPE VII GP S.à r.l., its general partner
By: Advent International GPE VII, LLC, its Manager
 /s/ Jarlyth Gibson  
By: Advent International Corporation, its Manager
Jarlyth Gibson, Manager
  

By: /s/ Michael Ristaino
 
Name: Michael Ristaino
  
Title: Vice President of Finance - Fund Administration
  

May 18, 2021
Date


Page 48 of 48