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
                                                                                  
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Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940
                      

1. Name and Address of Reporting Person *

BIDDISCOMBE SIMON 		2. Issuer Name and Ticker or Trading Symbol

VOLTERRA SEMICONDUCTOR CORP [ VLTR ] 		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 VOLTERRA SEMICONDUCTOR CORPORATION, 47467 FREMONT BLVD 		3. Date of Earliest Transaction (MM/DD/YYYY)

10/1/2013
(Street)

FREMONT, CA 94538
(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

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 Option (right to buy)   $15.12   10/1/2013     D         30000      (1) 1/27/2020   Common Stock   30000   $0.00   0   D    
restricted Stock Unit     (2) 10/1/2013     D         900      (2) 4/14/2020   Common Stock   900   $0.00   0   D    

Explanation of Responses:
( 1)  Pursuant to the terms of the Plan of Merger Agreement filed by and between Maxim Integrated Products, Inc. and Volterra Semiconductor Corporation (the "Merger Agreement"), each stock option that was outstanding and unexercised as of the Effective Time (as defined in the Merger Agreement), whether or not vested, was cancelled and converted into the right to receive $23.00 per share (minus the exercise price of the option) in cash, without interest, subject to any required withholding of taxes.
( 2)  As reported on Form 4 dated April 17, 2013, the reporting person received a grant of 900 Restricted Stock Units (RSUs) on April 15, 2013, to vest in full on the earlier of (i) the first anniversary of such date of grant or (ii) the day prior to the date of the first annual meeting following the date such grant was made. At the Effective time, the RSUs are fully accelerated and converted into the right to receive $23.00 per share in cash, without interest, subject to any required withholding of taxes.

Reporting Owners
Reporting Owner Name / Address
Relationships
Director 10% Owner Officer Other
BIDDISCOMBE SIMON
C/O VOLTERRA SEMICONDUCTOR CORPORATION
47467 FREMONT BLVD
FREMONT, CA 94538 		X



Signatures
/s/David Oh, by Power of Attorney 10/1/2013
** 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 control number.
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