VICOR CORP — Director's Dealing 2020

May 20, 2020

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: VICOR CORP (vicr)
CIK: 0000751978
Period of Report: 2020-05-18

Reporting Person: Tuozzolo Claudio (Director, Corp. Vice President)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2020-05-18	Common Stock	M	3413	$6.29	Acquired	40336	Direct
2020-05-18	Common Stock	S	3413	$55.4156	Disposed	36923	Direct
2020-05-18	Common Stock	M	1500	$5.35	Acquired	38423	Direct
2020-05-18	Common Stock	S	1500	$55.4156	Disposed	36923	Direct
2020-05-19	Common Stock	M	1500	$6.29	Acquired	38423	Direct
2020-05-19	Common Stock	S	1500	$58.4076	Disposed	36923	Direct
2020-05-19	Common Stock	M	3878	$12.5747	Acquired	40801	Direct
2020-05-19	Common Stock	S	2223	$58.4228	Disposed	38578	Direct
2020-05-19	Common Stock	M	1220	$8.062	Acquired	39798	Direct
2020-05-19	Common Stock	S	647	$58.4228	Disposed	39151	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2020-05-18	Non Qualified Stock Option	$6.29	M	3413	Disposed	2023-06-17	Common Stock (3413)	Direct
2020-05-18	Non Qualified Stock Option	$5.35	M	1500	Disposed	2023-05-14	Common Stock (1500)	Direct
2020-05-19	Non Qualified Stock Option	$6.29	M	1500	Disposed	2023-06-17	Common Stock (1500)	Direct
2020-05-19	Non Qualified Stock Option	$12.5747	M	3878	Disposed	2022-06-18	Common Stock (3878)	Direct
2020-05-19	Non Qualified Stock Option	$8.062	M	1220	Disposed	2024-04-14	Common Stock (1220)	Direct

Footnotes

F1: This transaction involved the exercise of non-qualified stock options, the terms of which provided for the purchase of shares of common stock possessing multi-year restrictions on their sale or transfer. As such, the exercise followed the sell-to-cover process, whereby a portion of the shares acquired through the exercise were sold in the open market, with the proceeds used to fund the aggregate exercise price of the options and the income and employment taxes associated with the exercise. The balance of the shares acquired through exercise that were delivered to the reporting person are subject to holding periods through the fifth anniversary of the date of this transaction.

F2: This stock option is exercisable in full.