Vicor updates bylaws on director removal

Rhea-AI Filing Summary

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Filing Exhibits & Attachments

Q: Does the Vicor (VICR) filing describe a change in fiscal year or only By-law amendments?

Q: Does the Vicor (VICR) 8-K disclose any financial results or major transactions?

8-K Event Classification

Key Terms

What governance change did VICR announce on September 9, 2026?

Does the Vicor (VICR) filing describe a change in fiscal year or only By-law amendments?

When did the amended By-laws of Vicor (VICR) become effective?

Where can investors see the exact By-law changes for Vicor (VICR)?

Does the Vicor (VICR) 8-K disclose any financial results or major transactions?

The filing describes an amendment to Vicor’s By-laws clarifying provisions on removal of directors. It is reported under the item covering amendments to Articles of Incorporation or By-laws and changes in fiscal year, but only the governance amendment is described.

No. The 8-K focuses on a governance-related By-law amendment about removal of directors. It does not present financial results, earnings data, or major business transactions.

Vicor Corporation’s board has clarified By-law provisions governing how directors may be removed as of September 9, 2026.

Available on EDGAR 09/10/2026 - 04:26 PM EDT Accepted by SEC EDGAR 09/10/2026 - 04:26 PM EDT

Filing Impact

(Moderate)

Filing Sentiment

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Form Type

8-K

Vicor Corporation (VICR) reports that, effective September 9, 2026, its Board of Directors amended the company’s By-laws. The amendment clarifies provisions in Article II, Section 6 relating to the removal of directors.

The full text of the amended By-laws, including unmarked and marked versions, is provided as exhibits and incorporated by reference.

2 items: 5.03, 9.01

2 items

Item 5.03 Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year Governance

The company amended its charter documents, bylaws, or changed its fiscal year.

Item 9.01 Financial Statements and Exhibits Exhibits

Financial statements, pro forma financial information, or exhibit attachments filed with this report.

By-laws, removal of directors, Articles of Incorporation

3 terms

By-laws regulatory

"amended Vicor’s By-laws to clarify provisions relating to the removal"

By-laws are the internal rules a corporation uses to run itself—how directors are chosen, how meetings are run, what officers do, and how voting and record-keeping work. For investors, by-laws matter because they shape who controls decisions, how easily management can be changed, and what rights shareholders have; think of them as the company’s operating manual that can influence governance, risk and the value of your stake.

removal of directors regulatory

"to clarify provisions relating to the removal of directors in Article II"

Articles of Incorporation regulatory

"Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year"

A formal legal document filed with a government authority that creates a corporation and sets its basic rules — for example the company name, business purpose, how many ownership shares can exist, and who can receive legal notices. It matters to investors because it defines ownership structure, voting rights, and limits on liability, shaping who controls the company and how future shares or dividends can affect an investor’s stake; think of it as the company’s birth certificate and rulebook.

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

Vicor Corporation’s Board amended the company’s By-laws effective September 9, 2026 to clarify provisions in Article II, Section 6 regarding the removal of directors. The complete amended By-laws are included as exhibits to the report.

The filing describes an amendment to Vicor’s By-laws clarifying provisions on removal of directors. It is reported under the item covering amendments to Articles of Incorporation or By-laws and changes in fiscal year, but only the governance amendment is described.

The amended By-laws of Vicor Corporation became effective on September 9, 2026. Both unmarked and marked versions of the amended By-laws are filed as exhibits and incorporated by reference.

Investors can review the exact changes in the By-laws through Exhibit 3.1 (unmarked version) and Exhibit 3.2 (marked version), which show the amended By-laws as of September 9, 2026 and how the text was revised.

No. The 8-K focuses on a governance-related By-law amendment about removal of directors. It does not present financial results, earnings data, or major business transactions.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d)

of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): September 9, 2026

VICOR CORPORATION

(Exact Name of Registrant as Specified in its Charter)

Delaware

0-18277

04-2742817

(State or Other Jurisdiction

of Incorporation)

(Commission

File Number)

(IRS Employer

Identification No.)

25 Frontage Road, Andover, Massachusetts 01810

(Address of Principal Executive Offices) (Zip Code)

(978) 470-2900

(Registrant’s telephone number, including area code)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐	Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐	Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐	Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐	Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class

Trading
Symbol(s)

Name of each exchange

on which registered

Common Stock, par value $0.01 per share

VICR

The NASDAQ Stock Market LLC

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 or Rule 12b-2 of the Securities Exchange Act of 1934.

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 5.03. Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year

Effective September 9, 2026, the Board of Directors of Vicor Corporation (“Vicor”) amended Vicor’s By-laws to clarify provisions relating to the removal of directors in Article II, Section 6 thereof. The foregoing summary is qualified in its entirety by reference to the full text of the amended By-laws, which are attached hereto as Exhibit 3.1 (unmarked version) and Exhibit 3.2 (marked version), and are incorporated by reference herein.

Item 9.01. Financial Statements and Exhibits

(d) Exhibits


Exhibit No.		Description

3.1		By-laws, as amended on September 9, 2026 (unmarked version)

3.2		By-laws, as amended on September 9, 2026 (marked version)

104		Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Source: View Original Filing on SEC EDGAR

VICOR CORPORATION

Date: September 10, 2026

/s/ James F. Schmidt

James F. Schmidt

Chief Financial Officer

5 documents