Syniverse Holdings Inc - Statement of Changes in Beneficial Ownership (4)

FORM 4 [ X ] 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	OMB APPROVAL OMB Number: 3235-0287 Expires: January 31, 2008 Estimated average burden hours per response... 0.5
	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(f) of the Investment Company Act of 1940

1. Name and Address of Reporting Person * WILCOCK PAUL A	2. Issuer Name and Ticker or Trading Symbol SYNIVERSE HOLDINGS INC [ SVR ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director                      _____ 10% Owner __ X __ Officer (give title below)      _____ Other (specify below) Executive Officer
(Last)          (First)          (Middle) C/O SYNIVERSE HOLDINGS, INC., 8125 HIGHWOODS PALM WAY	3. Date of Earliest Transaction (MM/DD/YYYY) 3/31/2008
(Street) TAMPA, FL 33647 (City)        (State)        (Zip)	4. If Amendment, Date Original Filed (MM/DD/YYYY)	6. Individual or Joint/Group Filing (Check Applicable Line) _ X _ Form filed by One Reporting Person ___ 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. Trans. Date	2A. Deemed Execution Date, if any	3. Trans. 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	3/31/2008		F		2116	D	$16.66	133341	D
Common Stock, par value $0.001 per share	3/31/2008		D (1)		24000	D	$0.0	109341	D

Table II - Derivative Securities Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Trans. Date	3A. Deemed Execution Date, if any	4. Trans. 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		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 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
Stock Options (right to buy)	$16.6	3/31/2008		D  (2)			26666	(2)	5/12/2016	Common Stock	26666	(3)	13334   (4)	D
Stock Options (right to buy)	$16.6	3/31/2008		A  (2)		26666		(2)	12/31/2008	Common Stock	26666	(3)	26666   (2)	D
Stock Options (right to buy)	$12.04	3/31/2008		D  (5)			13333	(5)	5/11/2017	Common Stock	13333	(3)	26667   (4)	D
Stock Options (right to buy)	$12.04	3/31/2008		A  (5)		13333		(5)	12/31/2008	Common Stock	13333	(3)	13333   (5)	D

Explanation of Responses:
( 1)	Pursuant to Mr. Wilcock's separation agreement, unvested shares of restricted stock were forfeited.
( 2)	The reported transaction involved an amendment to an outstanding option to purchase 40,000 shares, resulting in the deemed cancellation of the "old" option and the grant of a replacement option. Mr. Wilcock's separation agreement provides that with respect to 13,333 options, previously set to vest on May 12, 2008, will now vest on March 31, 2008. The 13,333 options now vesting on March 31, 2008 and the 13,333 options that previously vested on May 12, 2007 were set to expire 90 days following Mr. Wilcock's termination from the Company will now expire on December 31, 2008.
( 3)	Per SEC instruction, column left blank.
( 4)	The remaining options will expire according to the terms of the Stock Option Award Agreement and the 2006 Long-Term Equity Incentive Plan.
( 5)	The reported transaction involved an amendment to an outstanding option to purchase 40,000 shares, resulting in the deemed cancellation of the "old" option and the grant of a replacement option. Mr. Wilcock's separation agreement provides that with respect to 13,333 options, previously set to vest on May 11, 2008, will now vest on March 31,2008. The options, previously set to expire 90 days following his termination from the Company, now expire on December 31, 2008.

Reporting Owners
Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
WILCOCK PAUL A C/O SYNIVERSE HOLDINGS, INC. 8125 HIGHWOODS PALM WAY TAMPA, FL 33647			Executive Officer

Signatures
/s/ Jody S. Gale under a Power of Attorney		4/2/2008
** Signature of Reporting Person		Date

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