VICOR CORP — Director's Dealing 2017

May 3, 2017

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: VICOR CORP (vicr)
CIK: 0000751978
Period of Report: 2017-05-01

Reporting Person: KELLEHER BARRY (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2017-05-01	Common Stock	M	5541	$7.34	Acquired	7798	Direct
2017-05-01	Common Stock	S	5541	$18.0037	Disposed	2257	Direct
2017-05-01	Common Stock	M	2486	$8.05	Acquired	4743	Direct
2017-05-01	Common Stock	S	2486	$18.0037	Disposed	2257	Direct
2017-05-02	Common Stock	M	344	$7.34	Acquired	2601	Direct
2017-05-02	Common Stock	S	344	$18	Disposed	2257	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2017-05-01	Non Qualified Stock Option	$7.34	M	5541	Disposed	2023-06-17	Common Stock (5541)	Direct
2017-05-01	Non Qualified Stock Option	$8.05	M	2486	Disposed	2024-06-20	Common Stock (2486)	Direct
2017-05-02	Non Qualified Stock Option	$7.34	M	344	Disposed	2023-06-17	Common Stock (344)	Direct

Footnotes

F1: Granted under the Company's Amended and Restated 2000 Stock Option and Incentive Plan and vest over a five year period.