VICOR CORP — Director's Dealing 2013

Jun 19, 2013

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: VICOR CORP (VICR)
CIK: 0000751978
Period of Report: 2013-06-17

Reporting Person: RIDDIFORD DAVID T (Director)

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2013-06-17	Non Qualified Stock Option	$11.70	D	4274	Disposed	2013-06-24	Common Stock (4274)	Direct
2013-06-17	Non Qualified Stock Option	$15.64	D	3197	Disposed	2014-06-23	Common Stock (3197)	Direct
2013-06-17	Non Qualified Stock Option	$6.08	D	8224	Disposed	2015-06-21	Common Stock (8224)	Direct
2013-06-17	Non Qualified Stock Option	$6.29	A	4274	Acquired	2023-06-17	Common Stock (4274)	Direct
2013-06-17	Non Qualified Stock Option	$6.29	A	3197	Acquired	2023-06-17	Common Stock (3197)	Direct
2013-06-17	Non Qualified Stock Option	$6.29	A	8224	Acquired	2023-06-17	Common Stock (8224)	Direct

Footnotes

F1: On 6/17/2013, the issuer canceled, pursuant to the issuer's option exchange offer, options granted to the reporting person. In exchange the reporting person received replacement options, having an exercise price of $6.29.

F2: The replacement options vest over a five year period in equal installments.

F3: Granted 6/24/2010 under the Company's Amended and Restated 2000 Stock Option and Incentive Plan and vest over a two year period.

F4: Granted 6/23/2011 under the Company's Amended and Restated 2000 Stock Option and Incentive Plan and vest over a two year period.

F5: Granted 6/21/2012 under the Company's Amended and Restated 2000 Stock Option and Incentive Plan and vest over a two year period.