SEC Form 4 · accession 0001193125-26-290689

VICOR CORP · VICR

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

Reporting owner

Patrizio Vinciarelli

Officer — Chairman & CEO · Director · 10% Owner

Period of report

Jun 29, 2026

Accepted (ET)

Jun 30, 2026 · 4:38 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	Nature of ownership
Common Stock^F3	Jun 29, 2026	S	200	$322.10	D	8,427,890	D
Common Stock^F4	Jun 29, 2026	S	400	$324.59	D	8,427,490	D
Common Stock^F5	Jun 29, 2026	S	100	$326.16	D	8,427,390	D
Common Stock^F6	Jun 29, 2026	S	100	$328.51	D	8,427,290	D
Common Stock^F7	Jun 29, 2026	S	600	$330.8623	D	8,426,690	D
Common Stock^F8	Jun 29, 2026	S	200	$331.805	D	8,426,490	D
Common Stock^F9	Jun 29, 2026	S	700	$333.4466	D	8,425,790	D
Common Stock^F10	Jun 29, 2026	S	700	$334.42	D	8,425,090	D
Common Stock^F11	Jun 29, 2026	S	890	$335.9037	D	8,424,200	D
Common Stock^F12	Jun 29, 2026	S	110	$337.0673	D	8,424,090	D
Common Stock^F13	Jun 29, 2026	S	200	$337.925	D	8,423,890	D
Common Stock^F14	Jun 29, 2026	S	300	$339.7333	D	8,423,590	D
Common Stock^F15	Jun 29, 2026	S	300	$340.57	D	8,423,290	D
Common Stock^F16	Jun 29, 2026	S	800	$342.0375	D	8,422,490	D
Common Stock^F17	Jun 29, 2026	S	300	$343.4667	D	8,422,190	D
Common Stock^F18	Jun 29, 2026	S	334	$345.2681	D	8,421,856	D
Common Stock^F19	Jun 29, 2026	S	466	$346.2194	D	8,421,390	D
Common Stock^F20	Jun 29, 2026	S	100	$348.22	D	8,421,290	D
Common Stock^F21	Jun 29, 2026	S	500	$350.295	D	8,420,790	D
Common Stock^F22	Jun 29, 2026	S	200	$351.985	D	8,420,590	D
Common Stock^F23	Jun 29, 2026	S	500	$354.3938	D	8,420,090	D
Common Stock^F24	Jun 29, 2026	S	200	$355.721	D	8,419,890	D
Common Stock^F25	Jun 29, 2026	S	500	$357.084	D	8,419,390	D
Common Stock^F26	Jun 29, 2026	S	800	$358.1113	D	8,418,590	D
Common Stock^F27	Jun 29, 2026	S	400	$359.0425	D	8,418,190	D
Common Stock^F28	Jun 29, 2026	S	100	$361.40	D	8,418,090	D
Common Stock^F29	Jun 29, 2026	S	200	$362.6174	D	8,417,890	D
Common Stock^F30	Jun 29, 2026	S	1,040	$364.4701	D	8,416,850	D
Common Stock^F1	holding	—	—		—	167,125	I	See Footnote

Table II — derivative securities

No Table II lines on this filing.

Explanation of responses

F1These shares are held by the reporting person as Trustee of the Patrizio Vinciarelli Irrevocable Trust U/A Dated 12/21/2012, established for the benefit of the child of the reporting person.
F10The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $334.0500 and $334.7200.
F11The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $335.3200 and $336.2500.
F12The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $336.4400 and $337.1300.
F13The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $337.7200 and $338.1300.
F14The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $339.2000 and $340.0000.
F15The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $340.2700 and $340.9500.
F16The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $341.7200 and $342.4900.
F17The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $343.1300 and $343.6800.
F18The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $344.7200 and $345.5300.
F19The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $345.9000 and $346.6400.
F2This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 26, 2026.
F20The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $348.2200 and $348.2200.
F21The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $349.8700 and $350.6600.
F22The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $351.8900 and $352.0800.
F23The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $353.8600 and $354.6900.
F24The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $355.3200 and $356.1200.
F25The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $356.3700 and $357.3400.
F26The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $357.5700 and $358.5000.
F27The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $358.6100 and $359.4300.
F28The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $361.4000 and $361.4000.
F29The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $362.4400 and $362.6800.
F3The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $321.9900 and $322.2100. The reporting person undertakes to provide to Vicor Corporation, any security holder of Vicor Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (3) through (30) to this Form 4.
F30The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $363.9800 and $364.9500.
F4The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $324.1200 and $324.9800.
F5The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $326.1600 and $326.1600.
F6The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $328.5100 and $328.5100.
F7The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $330.0700 and $331.0100.
F8The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $331.7000 and $331.9100.
F9The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $333.0500 and $334.0100.