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 *
  Nagel Richard J Jr
 2. Date of Event Requiring Statement (Month/Day/Year)
05/15/2006		 3. Issuer Name and Ticker or Trading Symbol
VICOR CORP [vicr]
(Last)
(First)
(Middle)
25 FRONTAGE ROAD		 4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
VP-Chief Accounting Officer
 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   (1) 06/03/2006 Common Stock 1,200 $ 22.875 D  
Non Qualified Stock Option   (1) 03/02/2008 Common Stock 361 $ 28.25 D  
Non Qualified Stock Option   (1) 03/03/2007 Common Stock 176 $ 16.37 D  
Non Qualified Stock Option   (1) 03/03/2007 Common Stock 456 $ 16.37 D  
Non Qualified Stock Option   (1) 03/02/2008 Common Stock 699 $ 28.25 D  
Non Qualified Stock Option   (2) 04/16/2011 Common Stock 794 $ 17.63 D  
Non Qualified Stock Option   (1) 04/12/2010 Common Stock 780 $ 20.5 D  
Non Qualified Stock Option   (2) 04/13/2015 Common Stock 600 $ 9.99 D  
Non Qualified Stock Option   (2) 03/01/2015 Common Stock 800 $ 11.8 D  
Non Qualified Stock Option   (3)   (4) Common Stock 92 $ 39.94 D  
Non Qualified Stock Option   (5)   (4) Common Stock 78 $ 43.81 D  
Non Qualified Stock Option   (5)   (4) Common Stock 50 $ 35.75 D  
Non Qualified Stock Option   (5)   (4) Common Stock 66 $ 16.43 D  

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
Nagel Richard J Jr
25 FRONTAGE ROAD
ANDOVER, MA 01810		       VP-Chief Accounting Officer  

Signatures

/s/Mark A. Glazer, Attorney in Fact for Richard J. Nagel, Jr. 05/26/2006
**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 1993 Stock Option Plan and vests over a five year period.
(2) Granted under the Company's Amended and Restated 2000 Stock Option and Incentive Plan and vests over a five year period.
(3) Granted under the Company's 1998 Stock Option and Incentive Plan and vests over a four year period.
(4) Each portion of the option expires 30 months after it becomes exercisable.
(5) Granted under the Company's Amended and Restated 2000 Stock Option and Incentive Plan and vests over a four year period.

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