T. Rowe Price reports 1.89M VICR shares (5.6%)

T. Rowe Price Associates, Inc. reports beneficial ownership of 1,888,446 shares of Vicor Corp common stock, representing 5.6% of the class as of 03/31/2026.

Rhea-AI Filing Summary

T. Rowe Price Associates, Inc. reports beneficial ownership of 1,888,446 shares of Vicor Corp common stock, representing 5.6% of the class as of 03/31/2026. The filing states T. Rowe Price has sole voting power over 1,769,973 shares and sole dispositive power over 1,888,446 shares. The filing includes a written statement that the filer "expressly denies" beneficial ownership.

Insights

Institutional Ownership Analyst

Large passive holding disclosed: 1.89M shares, 5.6% of Vicor.

Data shows an institutional position of 1,888,446 shares with sole voting and dispositive powers quantified in the filing. The 03/31/2026 time anchor ties the holding to the quarter-end record date provided.

Ownership statements include an affirmative denial of beneficial ownership; subsequent filings or amendments could clarify voting/dispositive arrangements or attribution changes.

Corporate Governance Specialist

Disclosure signals significant share block but includes an ownership denial clause.

The filing lists precise voting and dispositive counts: 1,769,973 sole voting power and 1,888,446 sole dispositive power. These figures are the operative metrics for regulatory reporting of influence.

Any change in control, voting arrangements, or additional Schedule 13D/13G amendments would be the material items to track in future filings.

Key Figures

Beneficial ownership: 1,888,446 shares Percent of class: 5.6% Sole voting power: 1,769,973 shares +2 more

5 metrics

Beneficial ownership 1,888,446 shares Amount beneficially owned as of 03/31/2026

Percent of class 5.6% Percent of common stock as reported on Schedule 13G

Sole voting power 1,769,973 shares Sole power to vote or to direct the vote

Sole dispositive power 1,888,446 shares Sole power to dispose or to direct the disposition

Filing date (time anchor) 03/31/2026 Reporting date for ownership figures

Key Terms

Schedule 13G, beneficially owned, sole dispositive power

3 terms

Schedule 13G regulatory

"Name of form: SCHEDULE 13G"

A Schedule 13G is a formal document that investors file with the government when they acquire a large ownership stake in a company, usually for investment purposes rather than control. It helps keep the public informed about who owns significant parts of a company's shares, which can influence how the company is managed and how investors make decisions. Filing this schedule is important for transparency and understanding the ownership landscape of publicly traded companies.

beneficially owned regulatory

"Amount beneficially owned: 1888446"

Beneficially owned describes securities or assets where a person has the economic rights and control—such as the right to receive dividends and to direct voting—even if legal title is held in another name. Think of it like having the keys and using a car that’s registered to someone else: you get the benefits and make decisions. Investors care because beneficial ownership reveals who truly controls value and voting power, affecting corporate decisions and takeover dynamics.

sole dispositive power regulatory

"Sole power to dispose or to direct the disposition of: 1888446"

Sole dispositive power is the exclusive legal authority to decide what happens to a security — for example, whether to sell, transfer, or retain shares — without needing anyone else’s permission. Investors care because it signals who truly controls the economic outcome of an investment: like holding the only key to a safe, the holder can realize gains or losses and may trigger regulatory reporting, insider rules, or influence over corporate ownership.

FAQ

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

How many Vicor (VICR) shares does T. Rowe Price report owning?

T. Rowe Price reports beneficial ownership of 1,888,446 shares of Vicor common stock, as stated in the filing. This number is presented with the filing's time anchor of 03/31/2026 and is the filing's declared amount.

What percentage of Vicor's class does that holding represent?

The filing states the position represents 5.6% of Vicor common stock. That percentage is reported in the Schedule 13G alongside the 1,888,446 share figure and the 03/31/2026 date.

What voting and dispositive powers does T. Rowe Price report for VICR shares?

The filing lists sole voting power of 1,769,973 shares and sole dispositive power of 1,888,446 shares. Those are the exact counts disclosed under the ownership section of the Schedule 13G.

Does T. Rowe Price claim to be the beneficial owner of these shares?

The Schedule 13G includes a written statement in which T. Rowe Price "expressly denies" that the filing should be construed as an admission of beneficial ownership. That denial appears verbatim in the filing.

What is the reporting date for the ownership figures in the filing?

The ownership figures are reported with a time anchor of 03/31/2026. That date appears on the filing cover and governs the share and percentage amounts shown.

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

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Accepted by SEC EDGAR 05/15/2026 - 10:07 AM EDT Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

VICOR CORP

(Name of Issuer)

COMMON STOCK

(Title of Class of Securities)

925815102

(CUSIP Number)

03/31/2026

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

schemaVersion:

SCHEDULE 13G

CUSIP Number(s): 925815102

1

Names of Reporting Persons

T. Rowe Price Associates, Inc.

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

MARYLAND

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 1,769,973.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 1,888,446.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

1,888,446.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

5.6 %

12

Type of Reporting Person (See Instructions)

IA

SCHEDULE 13G

Item 1.
(a)	Name of issuer: VICOR CORP
(b)	Address of issuer's principal executive offices: 25 FRONTAGE ROAD, ANDOVER, MA, 01810
Item 2.
(a)	Name of person filing: T. Rowe Price Associates, Inc.
(b)	Address or principal business office or, if none, residence: 1307 Point Street, Baltimore, MD 21231
(c)	Citizenship: Maryland
(d)	Title of class of securities: COMMON STOCK
(e)	CUSIP Number(s): 925815102
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.	Ownership
(a)	Amount beneficially owned: 1888446
(b)	Percent of class: 5.6 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 1769973
	(ii) Shared power to vote or to direct the vote: 0
	(iii) Sole power to dispose or to direct the disposition of: 1888446
	(iv) Shared power to dispose or to direct the disposition of: 0
Item 5.	Ownership of 5 Percent or Less of a Class.
	Not Applicable
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	Not Applicable
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	Not Applicable
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11. T. Rowe Price Associates, Inc. hereby declares and affirms that the filing of Schedule 13G shall not be construed as an admission that Price Associates is the beneficial owner of the securities referred to, which beneficial ownership is expressly denied.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

T. Rowe Price Associates, Inc.

Signature:	Ellen York
Name/Title:	Vice President
Date:	05/15/2026