Syneos Health (SYNH) Form 4/A Change in insider ownership (amended)

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

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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^*

THOMAS H. LEE ADVISORS, LLC

(Last) (First) (Middle)

C/O THOMAS H. LEE PARTNERS, L.P.

100 FEDERAL STREET, 35TH FLOOR

(Street)

BOSTON MA 02110

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Syneos Health, Inc. [ SYNH ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director	10% Owner
	Officer (give title below)	Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
05/14/2021

4. If Amendment, Date of Original Filed (Month/Day/Year)
05/18/2021

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	05/12/2021		S		379,789(5)	D	$81.04(4)	5,208,871(6)	I	See footnote(1)(2)(3)
Class A Common Stock	05/12/2021		S		64(7)	D	$81.04(4)	852(9)	D
Class A Common Stock	05/12/2021		S		25(8)	D	$81.04(4)	327(10)	D

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^*

THOMAS H. LEE ADVISORS, LLC

(Last) (First) (Middle)

C/O THOMAS H. LEE PARTNERS, L.P.

100 FEDERAL STREET, 35TH FLOOR

(Street)

BOSTON MA 02110

(City) (State) (Zip)

1. Name and Address of Reporting Person^*

Thomas H. Lee Equity Fund VI (2019), L.P.

(Last) (First) (Middle)

C/O THOMAS H. LEE PARTNERS, L.P.

100 FEDERAL STREET

(Street)

BOSTON MA 02110

(City) (State) (Zip)

1. Name and Address of Reporting Person^*

THOMAS H LEE PARTNERS LP

(Last) (First) (Middle)

100 FEDERAL STREET, 35TH FLOOR

(Street)

BOSTON MA 02110

(City) (State) (Zip)

1. Name and Address of Reporting Person^*

THL Fund VI (2019) Coinvestment Partners, L.P.

(Last) (First) (Middle)

C/O THOMAS H. LEE PARTNERS, L.P.

100 FEDERAL STREET, 35TH FLOOR

(Street)

BOSTON MA 02110

(City) (State) (Zip)

1. Name and Address of Reporting Person^*

Thomas H. Lee Equity Fund VII, L.P.

(Last) (First) (Middle)

C/O THOMAS H. LEE PARTNERS, L.P.

100 FEDERAL STREET, 35TH FLOOR

(Street)

BOSTON MA 02110

(City) (State) (Zip)

1. Name and Address of Reporting Person^*

Thomas H. Lee Parallel Fund VII, L.P.

(Last) (First) (Middle)

C/O THOMAS H. LEE PARTNERS, L.P.

100 FEDERAL STREET, 35TH FLOOR

(Street)

BOSTON MA 02110

(City) (State) (Zip)

1. Name and Address of Reporting Person^*

Thomas H. Lee Parallel (Cayman) Fund VII, L.P.

(Last) (First) (Middle)

C/O THOMAS H. LEE PARTNERS, L.P.

100 FEDERAL STREET, 35TH FLOOR

(Street)

BOSTON MA 02110

(City) (State) (Zip)

1. Name and Address of Reporting Person^*

THL Managers VI, LLC

(Last) (First) (Middle)

C/O THOMAS H. LEE PARNTERS, L.P.

100 FEDERAL STREET, 35TH FLOOR

(Street)

BOSTON MA 02110

(City) (State) (Zip)

1. Name and Address of Reporting Person^*

THL Managers VII, LLC

(Last) (First) (Middle)

C/O THOMAS H. LEE PARTNERS, L.P.

100 FEDERAL STREET, 35TH FLOOR

(Street)

BOSTON MA 02110

(City) (State) (Zip)

1. Name and Address of Reporting Person^*

THL HOLDCO, LLC

(Last) (First) (Middle)

C/O THOMAS H. LEE PARTNERS, L.P.

100 FEDERAL STREET, 35TH FLOOR

(Street)

BOSTON MA 02110

(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).

5. See Exhibit 99.1 for text of footnote (5).

6. See Exhibit 99.1 for text of footnote (6).

7. See Exhibit 99.1 for text of footnote (7).

8. See Exhibit 99.1 for text of footnote (8).

9. See Exhibit 99.1 for text of footnote (9).

10. See Exhibit 99.1 for text of footnote (10).

Remarks:

Exhibit 99.1 (Form 4 Footnotes) and Exhibit 99.2 (Joint Filer Information) are incorporated herein by reference. This Form 4 is the first of two Forms 4 being filed relating to the same event. The Form 4 has been split into two 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 Reporting Persons. Each Form 4 will be filed by Designated Filer Thomas H. Lee Advisors, LLC. This amendment to Form 4 is being filed solely to (i) correct the number of shares reflected as being held by Fund VI 2019 following the closing of the Overallotment Option and the number of shares reflected as being distributed by Fund VI 2019 in footnote 6 to the Form 4 filed on March 18, 2021 (the "Original Form 4"), from 1,449,400 shares to 1,449,436 shares, and 12,806 shares to 12,770 shares, respectively, and (ii) correct the aggregate number of shares reflected as being held by the THL Funds as disclosed in Table I of the Original Form 4, from 5,208,835 shares to 5,208,871 shares.

	** See Exhibit 99.2 for Signatures	05/20/2021
	** Signature of Reporting Person	Date
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