VICOR CORPORATION (VICR) is the subject of an amended Schedule 13G filing reporting the equity position of JPMorgan Chase & Co. and certain subsidiaries in Vicor’s common stock.
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VICOR CORPORATION (VICR) is the subject of an amended Schedule 13G filing reporting the equity position of JPMorgan Chase & Co. and certain subsidiaries in Vicor’s common stock.
JPMorgan Chase & Co. reports beneficial ownership of 1,394,339 shares of Vicor common stock, representing 4.0% of the outstanding class. It has sole voting power over 1,337,296 shares and shared voting power over 94 shares, with sole dispositive power over 1,392,256 shares and shared dispositive power over 1,006 shares. The filing identifies multiple affiliated entities, including J.P. Morgan Trust Company of Delaware, J.P. Morgan Securities LLC, and JPMorgan Chase Bank, National Association, as subsidiaries through which the position is held. The filer notes that it holds 5 percent or less of the class.
Key Figures
Beneficially owned shares:1,394,339 sharesPercent of class owned:4.0%Sole voting power:1,337,296 shares+3 more
6 metrics
Beneficially owned shares1,394,339 sharesVicor Corporation common stock reported as beneficially owned by JPMorgan Chase & Co.
Percent of class owned4.0%Portion of Vicor common stock outstanding attributed to JPMorgan Chase & Co.
Sole voting power1,337,296 sharesShares of Vicor common stock over which voting power is held solely
Shared voting power94 sharesShares of Vicor common stock over which voting power is shared
Sole dispositive power1,392,256 sharesVicor shares over which JPMorgan Chase & Co. has sole power to dispose
Shared dispositive power1,006 sharesVicor shares over which dispositive power is shared
Key Terms
beneficially owned, sole voting power, shared voting power, sole dispositive power, +2 more
6 terms
beneficially ownedfinancial
"Amount beneficially owned: 1394339"
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 voting powerfinancial
"Sole Voting Power 1,337,296.00"
Sole voting power is the exclusive right to cast votes attached to a shareholder’s stock without needing approval from anyone else. Like holding the only remote control for a TV, it lets that holder decide corporate matters such as board members, mergers, and policy changes, making it important to investors because it concentrates control and can strongly influence a company’s strategy and the value of its shares.
shared voting powerfinancial
"Shared Voting Power 94.00"
Shared voting power occurs when two or more parties jointly have the right to vote or decide how a block of company shares is cast, like co-owners who must agree before moving a piece of furniture. Investors care because who controls voting rights affects board elections, major corporate decisions and takeover outcomes, and shared control can alter regulatory disclosures and the practical influence any holder has over a company’s direction and value.
sole dispositive powerfinancial
"Sole Dispositive Power 1,392,256.00"
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.
shared dispositive powerfinancial
"Shared Dispositive Power 1,006.00"
Schedule 13Gregulatory
"If a parent holding company has filed this schedule"
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.
FAQ
AI-generated questions and answers. How Rhea-AI works. Not financial advice.
What ownership stake in VICR does JPMorgan Chase & Co. report in this Schedule 13G/A?
JPMorgan Chase & Co. reports 1,394,339 shares of Vicor Corporation common stock, representing 4.0% of the outstanding class, as beneficially owned as of the reported date.
How much voting power over VICR shares does JPMorgan Chase & Co. report?
The filer reports sole voting power over 1,337,296 shares of Vicor common stock and shared voting power over 94 shares, indicating nearly all of the stake is subject to sole voting authority.
What dispositive power does JPMorgan Chase & Co. have over its VICR holdings?
JPMorgan Chase & Co. reports sole dispositive power over 1,392,256 shares of Vicor common stock and shared dispositive power over 1,006 shares, reflecting its ability to direct the disposition of most of the position.
Does JPMorgan Chase & Co. own more than 5% of VICR’s common stock?
No. The filing states beneficial ownership of 4.0% of Vicor’s common stock and explicitly notes ownership of 5 percent or less of the class.
Which JPMorgan entities are identified as holding VICR shares in this filing?
Subsidiaries listed 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, and others.
What class of VICR securities is covered in this Schedule 13G/A?
The filing covers common stock, par value $0.01 per share, of Vicor Corporation, identified by CUSIP 925815102.
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 13G
UNDER THE SECURITIES EXCHANGE ACT OF 1934
(Amendment No. 1)
VICOR CORPORATION
(Name of Issuer)
Common Stock, par value $0.01 per share
(Title of Class of Securities)
925815102
(CUSIP Number)
08/31/2026
(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
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
1,337,296.00
6
Shared Voting Power
94.00
7
Sole Dispositive Power
1,392,256.00
8
Shared Dispositive Power
1,006.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
1,394,339.00
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)
4.0 %
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:
1394339
(b)
Percent of class:
4.0 %
(c)
Number of shares as to which the person has:
(i) Sole power to vote or to direct the vote:
1337296
(ii) Shared power to vote or to direct the vote:
94
(iii) Sole power to dispose or to direct the disposition of:
1392256
(iv) Shared power to dispose or to direct the disposition of:
1006
Item 5.
Ownership of 5 Percent or Less of a Class.
Ownership of 5 percent or less of a class
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.;
55I, LLC
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.
