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VICOR CORP

For the period ended Dec 31, 2025. Filed Mar 2, 2026.

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About this filing

A company's yearly report to the SEC, with audited financial statements. It is the fullest account a company gives of its business, its finances and the risks it sees.

FY2025 · Filed Mar 2, 2026

VICR$163.51+11.3%Stored close · as of Nov 9, 2026

Extracted filing text, with the paragraph anchors used by the comparison.

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Contents

Item 16. Form 10-K Summary

None.

SCHEDULE II

VALUATION AND QUALIFYING ACCOUNTS

Years ended December 31, 2025, 2024 and 2023

Charge
(Recovery)
Balance atto Costs andOther Charges,Balance at
DescriptionBeginning of PeriodExpensesDeductions (1)End of Period
Allowance for doubtful accounts:
Year ended:
December 31, 2025$130,000$7,000$—$137,000
December 31, 2024130,000——130,000
December 31, 202387,00043,000—130,000

(1)

Reflects uncollectible accounts written off, net of recoveries.

SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Vicor Corporation
By:/s/ James F. Schmidt
James F. Schmidt
Vice President, Chief Financial Officer
Date: March 2, 2026

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the registrant in the capacities and on the dates indicated.

SignatureTitleDate
/s/ Patrizio VinciarelliPresident, Chief Executive Officer andChairman of the Board (PrincipalExecutive Officer)March 2, 2026
Patrizio Vinciarelli
/s/ James F. SchmidtChief Financial Officer, Vice President and Director(Principal Financial Officer and Principal Accounting Officer)March 2, 2026
James F. Schmidt
/s/ Estia J. EichtenDirectorMarch 2, 2026
Estia J. Eichten
/s/ Michael S. McNamaraDirectorMarch 2, 2026
Michael S. McNamara
/s/ Samuel J. AndersonDirectorMarch 2, 2026
Samuel J. Anderson
/s/ Claudio TuozzoloDirectorMarch 2, 2026
Claudio Tuozzolo
/s/ Jason L. CarlsonDirectorMarch 2, 2026
Jason L. Carlson
/s/ Philip D. DaviesDirectorMarch 2, 2026
Philip D. Davies
/s/ Andrew T. D’AmicoDirectorMarch 2, 2026
Andrew T. D’Amico
/s/ Zmira LavieDirectorMarch 2, 2026
Zmira Lavie
/s/ John ShenDirectorMarch 2, 2026
John Shen
ContentsView on SEC.gov

The text of this filing, as the company filed it with the SEC, without its images or exhibits. This is not investment advice.