VICOR CORP - Director's Dealing 2018

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: VICOR CORP (VICR)
CIK: 0000751978
Period of Report: 2018-05-21

Reporting Person: GRIFFIN LIAM (Director)

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2018-05-21	Common Stock	M	3946	$6.29	Acquired	3946	Direct
2018-05-21	Common Stock	S	3946	$40.0107	Disposed	0	Direct
2018-05-22	Common Stock	M	2032	$6.29	Acquired	2032	Direct
2018-05-22	Common Stock	S	2032	$39.8774	Disposed	0	Direct
2018-05-22	Common Stock	M	943	$10.61	Acquired	943	Direct
2018-05-22	Common Stock	S	943	$39.8774	Disposed	0	Direct
2018-05-22	Common Stock	M	1491	$13.42	Acquired	1491	Direct
2018-05-22	Common Stock	S	1491	$39.8774	Disposed	0	Direct

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2018-05-21	Non Qualified Stock Option	$6.29	M	3946	Disposed	2023-06-17	Common Stock (3946)	Direct
2018-05-22	Non Qualified Stock Option	$6.29	M	2032	Disposed	2023-06-17	Common Stock (2032)	Direct
2018-05-22	Non Qualified Stock Option	$10.61	M	943	Disposed	2026-06-17	Common Stock (943)	Direct
2018-05-22	Non Qualified Stock Option	$13.42	M	1491	Disposed	2025-06-19	Common Stock (1491)	Direct

F1: Granted on 6/17/2013 under the Company's Amended and Restated 2000 Stock Option and Incentive Plan and vest over a five year period.

F2: Granted on 6/17/2016 under the Company's Amended and Restated 2000 Stock Option and Incentive Plan and vest over a five year period.

F3: Granted on 6/19/2015 under the Company's Amended and Restated 2000 Stock Option and Incentive Plan and vest over a five year period.