Ownership Submission
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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(Print or Type Responses)
1. Name and Address of Reporting Person *
SIMMS JAMES A
   2. Issuer Name and Ticker or Trading Symbol
VICOR CORP [vicr] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
CFO and Secretary
(Last)
(First)
(Middle)
C/O VICOR CORP., 25 FRONTAGE RD.		 3. Date of Earliest Transaction (Month/Day/Year)
06/21/2013
(Street)

ANDOVER, MA 01810		 4. If Amendment, Date Original Filed(Month/Day/Year)
06/25/2013		 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

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
Non Qualified Stock Option $ 5.67 06/21/2013   A   0 (1)     (1)   (1) Common Stock 0 $ 0 100,000 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
SIMMS JAMES A
C/O VICOR CORP.
25 FRONTAGE RD.
ANDOVER, MA 01810		   X     CFO and Secretary  

Signatures

 /s/Kemble D. Morrison, Attorney in Fact for James A. Simms   10/20/2014
**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) On a Form 4 filed on June 25, 2013, the reporting person reported acquiring options to purchase 8,819 shares pursuant to the Company's Amended and Restated 2000 Stock Option and Incentive Plan. However, the Company subsequently determined that, in an aggregate amount including the options to purchase 8,819 shares that are the subject of this amendment, options to purchase 29,514 shares were not validly granted during 2013 pursuant to the Company's Amended and Restated 2000 Stock Option and Incentive Plan because the grants exceeded the limit on the number of options that may be granted to any individual participant within any calendar year. Accordingly, the attempted grant of these excess options was ineffective, and they were never granted to the reporting person. The reporting person is filing this amendment to report the correct amount of options acquired on June 21, 2013.

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