Ownership Submission
FORM 3
 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF 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 *
  Grava Nancy L
 2. Date of Event Requiring Statement (Month/Day/Year)
06/19/2015		 3. Issuer Name and Ticker or Trading Symbol
VICOR CORP [vicr]
(Last)
(First)
(Middle)
25 FRONTAGE RD.		 4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
_____ Officer (give title below) __X__ Other (specify below)
VP-Human Resources
 5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

ANDOVER, MA 01810		 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 Beneficially Owned
1.Title of Security
(Instr. 4)		 2. Amount of Securities Beneficially Owned
(Instr. 4)		 3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)		 4. Nature of Indirect Beneficial Ownership
(Instr. 5)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)		 2. Date Exercisable and Expiration Date
(Month/Day/Year)		 3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)		 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)		 6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares
Non Qualified Stock Option 06/17/2015 06/17/2023 Common Stock 2,500 $ 7.34 D  
Non Qualified Stock Option 06/17/2016 06/17/2023 Common Stock 2,500 $ 8.38 D  
Non Qualified Stock Option 06/17/2017 06/17/2023 Common Stock 2,500 $ 9.43 D  
Non Qualified Stock Option 06/17/2018 06/17/2023 Common Stock 2,500 $ 10.48 D  
Non Qualified Stock Option   (1) 06/17/2023 Common Stock 300 $ 6.29 D  
Non Qualified Stock Option   (2) 07/01/2025 Common Stock 10,000 $ 11.89 D  

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
Grava Nancy L
25 FRONTAGE RD.
ANDOVER, MA 01810		       VP-Human Resources

Signatures

/s/Richard J. Nagel Jr., Attorney in Fact for Nancy L. Grava 10/16/2015
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 5(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 under the Company's Amended and Restated 2000 Stock Option and Incentive Plan on 6/17/2013 and vest over a five year period.
(2) Granted under the Company's Amended and Restated 2000 Stock Option and Incentive Plan on 7/1/2015 and vest over a five year period.
 
Remarks:
Due to an inadvertent administrative error, this Form 3 was not filed timely.

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, See Instruction 6 for procedure.

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