FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person * ROCHE COLLIN E   2. Issuer Name and Ticker or Trading Symbol SYNIVERSE HOLDINGS INC [SVR] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director _____ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) C/O SYNIVERSE HOLDINGS, INC. 8125 HIGHWOODS PALM WAY 3. Date of Earliest Transaction (Month/Day/Year) 08/20/2008 (Street) TAMPA, FL 33647 4. If Amendment, Date Original Filed(Month/Day/Year) 6. Individual or Joint/Group Filing(Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (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 Common Stock, par value $0.001 per share 08/20/2008   S   107,526 (1) D $ 17.57 (2) 367,431 I See footnotes (3) (4) Common Stock, par value $0.001 per share 08/21/2008   S   74,224 (1) D $ 17.36 (2) 293,207 I See footnotes (3) (4) Common Stock, par value $0.001 per share 08/20/2008   S   286 (5) D $ 17.57 (6) 976 I See footnotes (3) (7) Common Stock, par value $0.001 per share 08/21/2008   S   197 (5) D $ 17.36 (6) 779 I See footnotes (3) (7) Common Stock, par value $0.001 per share 08/20/2008   S   1,212 (8) D $ 17.57 (9) 4,144 I See footnotes (3) (10) Common Stock, par value $0.001 per share 08/21/2008   S   837 (8) D $ 17.36 (9) 3,307 I See footnotes (3) (10) Common Stock, par value $0.001 per share               2,619,083 I See footnotes (3) (11) Common Stock, par value $0.001 per share               1,307,756 I See footnotes (3) (12) Common Stock, par value $0.001 per share               35,950 I See footnotes (3) (13) Common Stock, par value $0.001 per share               66,250 I See footnotes (3) (14)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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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 Underlying Securities (Instr. 3 and 4)

8. Price of Derivative Security (Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
ROCHE COLLIN E C/O SYNIVERSE HOLDINGS INC. 8125 HIGHWOODS PALM WAY TAMPA, FL 33647	X

Signatures

/s/ Jody S. Gale under a Power of Attorney		08/22/2008
**Signature of Reporting Person		Date

Explanation of Responses:

*	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).
(1)	Reflects shares received by GTCR Partners VII, L.P. ("GTCR Partners VII") as a result of pro rata distributions from GTCR Fund VII, L.P. ("Fund VII") and GTCR Fund VII/A, L.P. ("Fund VII/A") that were exempt from Section 16 of the Securities Exchange Act of 1934, as amended, pursuant to Rule 16a-13 promulgated thereunder.
(2)	Represents the weighted average price of the shares sold. The prices actually received ranged from (i) $17.24 to $17.80 for sales occurring on August 20, 2008 and (ii) $17.20 to $17.54 for sales occurring on August 21, 2008. The reporting person will provide to the issuer, any security holder of the issuer or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.
(3)	The Reporting Person expressly disclaims beneficial ownership of the shares reported in Table I, except to the extent of his pecuniary interest therein. The filing of this form shall not be deemed an admission that the Reporting Person is, for Section 16 purposes or otherwise, the beneficial owner of such shares.
(4)	Reflects shares held directly by GTCR Partners VII. GTCR Golder Rauner, L.L.C. ("GTCR") is the general partner of GTCR Partners VII. As such, GTCR may be deemed to be the beneficial owner of such shares. GTCR is managed by its members. The Reporting Person is a member of GTCR and may be deemed to have an indirect pecuniary interest in the shares owned by GTCR Partners VII to the extent of the Reporting Person's indirect proportionate interest in GTCR Partners VII.
(5)	Reflects shares received by GTCR Mezzanine Partners, L.P. ("Mezzanine Partners") as a result of pro rata distributions from GTCR Capital Partners, L.P. ("Capital Partners") that were exempt from Section 16 of the Securities Exchange Act of 1934, as amended, pursuant to Rule 16a-13 promulgated thereunder.
(6)	Represents the weighted average price of the shares sold. The prices actually received ranged from (i) $17.25 to $17.77 for sales occurring on August 20, 2008 and (ii) $17.20 to $17.54 for sales occurring on August 21, 2008. The reporting person will provide to the issuer, any security holder of the issuer or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.
(7)	Reflects shares held directly by Mezzanine Partners. GTCR Partners VI, L.P. ("GTCR Partners VI") is the general partner of Mezzanine Partners. GTCR is the general partner of GTCR Partners VI. As such, GTCR may be deemed to be the beneficial owner of such shares. GTCR is managed by its members. The Reporting Person is a member of GTCR and may be deemed to have an indirect pecuniary interest in the shares owned by Mezzanine Partners to the extent of the Reporting Person's indirect proportionate interest in Mezzanine Partners.
(8)	Reflects shares received by GTCR as a result of pro rata distributions from GTCR Co-Invest, L.P. ("Co-Invest") that were exempt from Section 16 of the Securities Exchange Act of 1934, as amended, pursuant to Rule 16a-13 promulgated thereunder.
(9)	Represents the weighted average price of the shares sold. The prices actually received ranged from (i) $17.24 to $17.80 for sales occurring on August 20, 2008 and (ii) $17.20 to $17.54 for sales occurring on August 21, 2008. The reporting person will provide to the issuer, any security holder of the issuer or the SEC staff, upon request, information regarding the number of shares sold at each price within the range.
(10)	Reflects shares held directly by GTCR. GTCR is managed by its members. The Reporting Person is a member of GTCR and may be deemed to have an indirect pecuniary interest in the shares owned by GTCR to the extent of the Reporting Person's indirect proportionate interest in GTCR.
(11)	Fund VII is the direct beneficial owner of such shares. GTCR Partners VII is the general partner of Fund VII and GTCR is the general partner of GTCR Partners VII. As such, GTCR Partners VII and GTCR may be deemed to be beneficial owners of such shares. GTCR is managed by its members. The Reporting Person is a member of GTCR and GTCR Partners VII and may be deemed to have an indirect pecuniary interest in the shares owned by Fund VII to the extent of the Reporting Person's indirect proportionate interest in Fund VII.
(12)	Fund VII/A is the direct beneficial owner of such shares. GTCR Partners VII is the general partner of Fund VII/A and GTCR is the general partner of GTCR Partners VII. As such, GTCR Partners VII and GTCR may be deemed to be beneficial owners of such shares. GTCR is managed by its members. The Reporting Person is a member of GTCR and GTCR Partners VII and may be deemed to have an indirect pecuniary interest in the shares owned by Fund VII/A to the extent of the Reporting Person's indirect proportionate interest in Fund VII/A.
(13)	Co-Invest is the direct beneficial owner of such shares. GTCR is the general partner of Co-Invest. As such, GTCR may be deemed to be a beneficial owner of such shares. GTCR is managed by its members. The Reporting Person is a member of GTCR and may be deemed to have an indirect pecuniary interest in the shares owned by Co-Invest to the extent of the Reporting Person's indirect proportionate interest in Co-Invest.
(14)	Capital Partners is the direct beneficial owner of such shares. Mezzanine Partners is the general partner of Capital Partners. GTCR Partners VI is the general partner of Mezzanine Partners. GTCR is the general partner of GTCR Partners VI. As such, Mezzanine Partners, GTCR Partners VI and GTCR may be deemed to be beneficial owners of such shares. GTCR is managed by its members. The Reporting Person is a member of GTCR, Mezzanine Partners and GTCR Partners VI and may be deemed to have an indirect pecuniary interest in the shares owned by Capital Partners to the extent of the Reporting Person's indirect proportionate interest in Capital Partners.

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