JPMorgan Chase & Co. (VICR) reports 12.1% beneficial stake in Vicor

Rhea-AI Filing Summary

JPMorgan Chase & Co. has filed an amended Schedule 13G reporting a significant passive ownership stake in Vicor Corporation. As of 12/31/2025, JPMorgan Chase & Co. is deemed to beneficially own 4,016,883 shares of Vicor common stock, representing 12.1% of the class.

The filing states that JPMorgan Chase & Co. has sole voting power over 2,197,481 shares and shared voting power over 37 shares, with sole dispositive power over 4,013,413 shares and shared dispositive power over 3,469 shares. The certification indicates the shares are held in the ordinary course of business and not for the purpose of changing or influencing control of Vicor.

Insights

Equity ownership and governance analyst

JPMorgan reports a passive 12.1% stake in Vicor, signaling sizable institutional ownership but no stated intent to influence control.

The filing shows JPMorgan Chase & Co. beneficially owning 4,016,883 Vicor common shares, equal to 12.1% of the class as of 12/31/2025. This is disclosed on a Schedule 13G/A, which is used for passive investors rather than activists, and is certified as being in the ordinary course of business.

Control characteristics are clarified through voting and dispositive powers: JPMorgan has sole voting power over 2,197,481 shares and sole dispositive power over 4,013,413 shares, with only small shared positions. Several subsidiaries, including J.P. Morgan Securities LLC and JPMorgan Chase Bank, National Association, are identified as relevant entities, indicating the stake is spread across business lines.

The certification explicitly states the holdings were not acquired and are not held for the purpose of changing or influencing control of Vicor Corporation. Future ownership levels and any shift from a passive 13G framework to an active 13D framework, if it were ever to occur, would appear in subsequent beneficial ownership filings.

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SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 3)

VICOR CORPORATION

(Name of Issuer)

Common Stock, par value $0.01 per share

(Title of Class of Securities)

925815102

(CUSIP Number)

12/31/2025

(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)

SCHEDULE 13G

CUSIP No. 925815102

1

Names of Reporting Persons

JPMORGAN CHASE & CO.

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

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 2,197,481.00
6	Shared Voting Power 37.00
7	Sole Dispositive Power 4,013,413.00
8	Shared Dispositive Power 3,469.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

4,016,883.00

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)

12.1 %

12

Type of Reporting Person (See Instructions)

HC

SCHEDULE 13G

Item 1.
(a)	Name of issuer: VICOR CORPORATION
(b)	Address of issuer's principal executive offices: 25 Frontage Road Andover MA 01810
Item 2.
(a)	Name of person filing: JPMORGAN CHASE & CO.
(b)	Address or principal business office or, if none, residence: 270 Park Avenue,,New York, NY 10017
(c)	Citizenship: DE
(d)	Title of class of securities: Common Stock, par value $0.01 per share
(e)	CUSIP No.: 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: 4016883
(b)	Percent of class: 12.1 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 2197481
	(ii) Shared power to vote or to direct the vote: 37
	(iii) Sole power to dispose or to direct the disposition of: 4013413
	(iv) Shared power to dispose or to direct the disposition of: 3469
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.
	If any other person is known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, such securities, a statement to that effect should be included in response to this item and, if such interest relates to more than 5 percent of the class, such person should be identified. A listing of the shareholders of an investment company registered under the Investment Company Act of 1940 or the beneficiaries of employee benefit plan, pension fund or endowment fund is not required. 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.
	If a parent holding company has filed this schedule, pursuant to Rule 13d-1(b)(ii)(G), so indicate under Item 3(g) and attach an exhibit stating the identity and the Item 3 classification of the relevant subsidiary. If a parent holding company has filed this schedule pursuant to Rule 13d-1(c) or Rule 13d-1(d), attach an exhibit stating the identification of the relevant subsidiary. J.P. Morgan Trust Company of Delaware; J.P. Morgan Securities LLC; JPMorgan Chase Bank, National Association; J.P. Morgan Investment Management Inc.; JPMorgan Asset Management (Taiwan) Limited; JPMorgan Asset Management (China) Company Limited; J.P. Morgan Wealth Management Solutions Inc.
Item 8.	Identification and Classification of Members of the Group.
	If a group has filed this schedule pursuant to §240.13d-1(b)(1)(ii)(J), so indicate under Item 3(j) and attach an exhibit stating the identity and Item 3 classification of each member of the group. If a group has filed this schedule pursuant to §240.13d-1(c) or §240.13d-1(d), attach an exhibit stating the identity of each member of the group. Not Applicable
Item 9.	Notice of Dissolution of Group.
	Notice of dissolution of a group may be furnished as an exhibit stating the date of the dissolution and that all further filings with respect to transactions in the security reported on will be filed, if required, by members of the group, in their individual capacity. See Item 5. 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.

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.

JPMORGAN CHASE & CO.

Signature:	Rachel Tsvaygoft
Name/Title:	Vice President
Date:	01/23/2026

FAQ

How many Vicor (VICR) shares does JPMorgan Chase & Co. report owning?

JPMorgan Chase & Co. reports beneficial ownership of 4,016,883 shares of Vicor Corporation common stock as of 12/31/2025.

What percentage of Vicor (VICR) does JPMorgan Chase & Co. beneficially own?

The filing states that JPMorgan Chase & Co. beneficially owns 12.1% of Vicor Corporation's outstanding common stock.

Is JPMorgan Chase & Co. reporting a passive or active stake in Vicor (VICR)?

The position is reported on a Schedule 13G/A with a certification that the securities are held in the ordinary course of business and not for the purpose of changing or influencing control of Vicor.

What voting power does JPMorgan Chase & Co. have over its Vicor (VICR) shares?

JPMorgan Chase & Co. reports sole voting power over 2,197,481 Vicor shares and shared voting power over 37 shares.

Which JPMorgan entities are associated with the Vicor (VICR) holdings?

Named subsidiaries include J.P. Morgan Trust Company of Delaware, J.P. Morgan Securities LLC, JPMorgan Chase Bank, National Association, J.P. Morgan Investment Management Inc., JPMorgan Asset Management (Taiwan) Limited, JPMorgan Asset Management (China) Company Limited, and J.P. Morgan Wealth Management Solutions Inc..

Who signed the JPMorgan Schedule 13G/A for Vicor (VICR) and when?

The statement was signed by Rachel Tsvaygoft, Vice President, on 01/23/2026.