SEC Form 4 · accession 0001866281-26-000007

VICOR CORP · VICR

Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗

Reporting owner

James F Schmidt

Officer — CFO, Treasurer, Secretary · Director

Period of report

Jun 22, 2026

Accepted (ET)

Jun 23, 2026 · 2:20 pm EDT

Rule 10b5-1 plan

yes — trade under a plan

Issuer CIK

0000751978

Table I — non-derivative securities

Security	Date	Code	Shares	Price	A/D	Owned after	D/I
Common Stock	Jun 22, 2026	M	1,216	$32.89	A	1,216	D
Common Stock	Jun 22, 2026	M	908	$44.07	A	2,124	D
Common Stock^F2	Jun 22, 2026	S	145	$351.38	D	1,979	D
Common Stock^F3	Jun 22, 2026	S	45	$354.11	D	1,934	D
Common Stock^F4	Jun 22, 2026	S	90	$356.485	D	1,844	D
Common Stock^F5	Jun 22, 2026	S	435	$357.6951	D	1,409	D
Common Stock^F6	Jun 22, 2026	S	145	$359.84	D	1,264	D
Common Stock^F7	Jun 22, 2026	S	280	$360.9464	D	984	D
Common Stock^F8	Jun 22, 2026	S	480	$362.5288	D	504	D
Common Sock^F9	Jun 22, 2026	S	190	$363.9721	D	314	D
Common Stock^F10	Jun 22, 2026	S	169	$365.1195	D	145	D
Common Stock^F11	Jun 22, 2026	S	145	$367.061	D	0	D

Table II — derivative securities

Security	Conv. / exercise price	Date	Code	Shares	A/D	Exercisable	Expires	Underlying	Underlying shares	Owned after	D/I
Non Qualified Stock Option^F12	$365.53	Jun 22, 2026	A	548	A	—	Jun 22, 2036	Common Stock	548	548	D
Non Qualified Stock Option	$32.89	Jun 22, 2026	M	1,216	D	Jun 21, 2026	Jun 21, 2034	Common Stock	1,216	3,648	D
Non Qualified Stock Option	$44.07	Jun 22, 2026	M	908	D	Jun 20, 2026	Jun 20, 2035	Common Stock	908	3,631	D

Explanation of responses

F1This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 10, 2025.
F10The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $365.0300 to $365.8000.
F11The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $366.9300 to $367.1200
F12Granted under the Companys Amended and Restated 2000 Stock Option and Incentive Plan on June 22, 2026 and vest over a five year period.
F2The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $351.3800 to $351.3800.
F3The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $354.1100 to $354.1100
F4The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $356.3000 to $356.6700.
F5The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $357.5000 to $357.9700.
F6The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $359.5700 to $360.4400
F7The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $360.5800 to $361.2000.
F8The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $362.1100 to $363.0900.
F9The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $363.7800 to $364.4800.