VICOR CORP — Director's Dealing 2018

May 9, 2018

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: VICOR CORP (vicr)
CIK: 0000751978
Period of Report: 2018-05-07

Reporting Person: Tuozzolo Claudio (Director, President, Picor Corporation)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2018-05-07	Common Stock	M	5000	$5.35	Acquired	5310	Direct
2018-05-07	Common Stock	S	5000	$36	Disposed	310	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2018-05-07	Non Qualified Stock Option	$5.35	M	5000	Disposed	2023-05-14	Common Stock (5000)	Direct

Footnotes

F1: Includes 310 shares acquired under the Vicor Corporation 2017 Employee Stock Purchase Plan on February 28, 2018.

F2: Granted on 5/14/2013 under the Company's Amended and Restated 2000 Stock Option and Incentive Plan and vest over a five year period.