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)
06/17/2013
(Street)

ANDOVER, MA 01810
4. If Amendment, Date Original Filed(Month/Day/Year)
06/19/2013
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

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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 $ 12.44 06/17/2013   D     30,000   (1) 05/01/2018 Common Stock 30,000 $ 0 90,695 D  
Non Qualified Stock Option $ 11.7 06/17/2013   D     4,274   (2) 06/24/2013 Common Stock 4,274 $ 0 86,421 D  
Non Qualified Stock Option $ 15.64 06/17/2013   D     3,197   (3) 06/23/2014 Common Stock 3,197 $ 0 83,224 D  
Non Qualified Stock Option $ 6.08 06/17/2013   D     8,224   (4) 06/21/2015 Common Stock 8,224 $ 0 75,000 D  
Non Qualified Stock Option $ 13.73 06/17/2013   D     50,000   (5) 08/27/2020 Common Stock 50,000 $ 0 25,000 D  
Non Qualified Stock Option $ 6.29 06/17/2013   A   30,000     (6) 06/17/2023 Common Stock 30,000 $ 0 55,000 D  
Non Qualified Stock Option $ 6.29 06/17/2013   A   4,274     (6) 06/17/2023 Common Stock 4,274 $ 0 59,274 D  
Non Qualified Stock Option $ 6.29 06/17/2013   A   3,197     (6) 06/17/2023 Common Stock 3,197 $ 0 62,471 D  
Non Qualified Stock Option $ 6.29 06/17/2013   A   8,224     (6) 06/17/2023 Common Stock 8,224 $ 0 70,695 D  
Non Qualified Stock Option $ 6.29 06/17/2013   A   10,000 (8)     (7) 06/17/2023 Common Stock 10,000 $ 0 80,695 D  
Non Qualified Stock Option $ 7.34 06/17/2013   A   10,000 (8)     (7) 06/17/2023 Common Stock 10,000 $ 0 90,695 D  
Non Qualified Stock Option $ 8.38 06/17/2013   A   7,541 (9)     (7) 06/17/2023 Common Stock 7,541 $ 0 98,236 D  
Non Qualified Stock Option $ 9.43 06/17/2013   A   0 (10)     (10)   (10) Common Stock 0 $ 0 98,236 D  
Non Qualified Stock Option $ 10.48 06/17/2013   A   0 (11)     (11)   (11) Common Stock 0 $ 0 98,236 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   10/27/2014
**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) Granted 5/1/2008 under the Company's Amended and Restated 2000 Stock Option and Incentive Plan (the "Plan"),vesting over a five year period.
(2) Granted 6/24/2010 under the Plan, vesting over a two year period.
(3) Granted 6/23/2011 under the Plan, vesting over a two year period.
(4) Granted 6/21/2012 under the Plan, vesting over a two year period.
(5) Granted 8/27/2010 under the Plan, vesting when certain defined performance milestones for the Company's Brick Business Unit are achieved.
(6) The replacement options vest over a five year period in equal installments.
(7) Pursuant to the Exchange Offer, Replacement Options granted on 6/17/2013 in exchange for certain options with vesting tied to the performance of the Brick Business Unit were awarded with five escalating exercise prices, as shown above in Table II, each with a separate vesting schedule: those with an exercise price of $6.29 fully vest on the first anniversary of grant, those with an exercise price of $7.34 fully vest on the second anniversary, those with an exercise price of $8.38 fully vest on the third anniversary, those with an exercise price of $9.43 fully vest on the fourth anniversary, and those with an exercise price of $10.48 fully vest on the fifth anniversary.
(8) The reporting person is filing this amendment to report the correct amount of options acquired on June 17, 2013. The Form 4/A filed on October 20, 2014, amended the original Form 4 of June 19, 2013, which reflected the acquisition, pursuant to Exchange Offer and in accord with the Plan, of options to purchase 10,000 shares at a price of $7.34, 10,000 shares at a price of $8.38, 10,000 shares at a price of $9.43, and 10,000 shares at a price of $10.48. As disclosed on the Form 4/A filed on October 20, 2014, the Company determined , subsequent to the grants associated with the Exchange Offer, an aggregate amount of options to purchase 29,514 shares was not validly granted during 2013 pursuant to the Plan, because the amount exceeded the Plan's limit on the number of options that may be granted to any individual within any calendar year. Accordingly the attempted grant of these excess options was ineffective, and the options were never granted to the reporting person.
(9) The Form 4/A filed filed on October 20, 2014 amended the original Form 4 of June 25, 2013, indicating that options to purchase 695 shares at a strike price of $8.38 were not validly granted. However, the Company subsequently determined options to purchase 2,459 shares at a price of $8.38 were not validly granted. As such, the revised 7,541 figure shown above in Table II reflects the correct amount of options validly granted under the provisions of the Plan.
(10) The Form 4/A filed on October 20, 2014 amended the original Form 4 of June 25, 2013, indicating that the originally reported grant of 10,000 options to purchase shares at a strike price of $9.43 was not validly granted under the provisions of the Plan.
(11) The Form 4/A filed on October 20, 2014 amended the original Form 4 of June 25, 2013, indicating that the originally reported grant of 10,000 options to purchase shares at a strike price of $10.48 was not validly granted under the provisions of the Plan.

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