Section 144 notice: insider sales reported

Issuer filed Section 144 notices reporting planned or completed dispositions of Common stock by a broker/holder and specific transactions by Claudio Tuozzolo.

Rhea-AI Filing Summary

Issuer filed Section 144 notices reporting planned or completed dispositions of Common stock by a broker/holder and specific transactions by Claudio Tuozzolo. The excerpt lists multiple sold lots: 4,643 shares on 02/25/2026 for $918,632.63, 5,296 shares on 02/24/2026 for $950,274.18, and 4,469 shares on 02/23/2026 for $780,303.94. The filing also itemizes securities tied to prior option exercises and an exercise of options under a registered plan on 04/24/2026 for 731 shares.

Key Figures

Sale on 02/25/2026: 4,643 shares Sale on 02/24/2026: 5,296 shares Sale on 02/23/2026: 4,469 shares +2 more

5 metrics

Sale on 02/25/2026 4,643 shares proceeds $918,632.63

Sale on 02/24/2026 5,296 shares proceeds $950,274.18

Sale on 02/23/2026 4,469 shares proceeds $780,303.94

Exercise under registered plan 731 shares exercise of options under a registered plan on 04/24/2026

Broker/Dealer listed Morgan Stanley Smith Barney LLC broker/dealer information shown in securities section

Key Terms

Form 144, Previously Exercised Options, Exercise of options under a registered plan

3 terms

Form 144 regulatory

"Section 144 notices reporting planned or completed dispositions"

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

Previously Exercised Options financial

"Entries labeled 'Previously Exercised Options' with 2019–2020 dates"

Exercise of options under a registered plan financial

"Phrase 'Exercise of options under a registered plan' dated 04/24/2026"

FAQ

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

What does the VICR Form 144 filing disclose about insider sales?

The filing lists reported dispositions by Claudio Tuozzolo, including 4,643 shares on 02/25/2026, 5,296 shares on 02/24/2026, and 4,469 shares on 02/23/2026, with dollar proceeds shown for each trade.

Which specific sale amounts and proceeds are shown in the filing for VICR?

The excerpt shows three sales with proceeds: $918,632.63 for 4,643 shares (02/25/2026), $950,274.18 for 5,296 shares (02/24/2026), and $780,303.94 for 4,469 shares (02/23/2026).

Does the filing show option-related activity for VICR securities?

Yes. The filing lists multiple entries labeled Previously Exercised Options with dates in 2019–2020 and an exercise of options under a registered plan on 04/24/2026 for 731 shares.

Who is the reported seller in the listed transactions on the VICR Form 144?

The transactions shown in the excerpt are attributed to Claudio Tuozzolo, with an address listed as 25 Frontage Road, Andover, MA 01810, tied to the three dated sales in February 2026.

Are proceeds or method of sale described in the Form 144 excerpt?

Each named sale includes a dollar amount of proceeds beside the share count. The excerpt also references broker information (Morgan Stanley Smith Barney LLC) but does not detail specific trading methods in the visible text.

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

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Accepted by SEC EDGAR 04/24/2026 - 04:14 PM EDT Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001403540
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	VICOR CORPORATION
SEC File Number	000-18277
Address of Issuer	25 Frontage Road Andover MASSACHUSETTS 01810
Phone	(978) 470-2900
Name of Person for Whose Account the Securities are To Be Sold	CLAUDIO TUOZZOLO
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Officer
Relationship to Issuer	Director

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	11035	2985015.75	33646426	04/24/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	05/19/2020	Previously Exercised Options	Issuer			458	05/19/2020	Cash
Common	05/19/2020	Previously Exercised Options	Issuer			1324	05/19/2020	Cash
Common	05/08/2020	Previously Exercised Options	Issuer			1457	05/08/2020	Cash
Common	04/29/2020	Previously Exercised Options	Issuer			636	04/29/2020	Cash
Common	04/24/2026	Exercise of options under a registered plan	Issuer			731	04/24/2026	Cash
Common	06/01/2020	Previously Exercised Options	Issuer			1894	06/01/2020	Cash
Common	05/20/2020	Previously Exercised Options	Issuer			1373	05/20/2020	Cash
Common	06/03/2020	Previously Exercised Options	Issuer			2292	06/03/2020	Cash
Common	11/14/2019	Previously Exercised Options	Issuer			870	11/14/2019	Cash

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
CLAUDIO TUOZZOLO 25 Frontage Road Andover MA 01810	Common	02/25/2026	4643	918632.63
CLAUDIO TUOZZOLO 25 Frontage Road Andover MA 01810	Common	02/24/2026	5296	950274.18
CLAUDIO TUOZZOLO 25 Frontage Road Andover MA 01810	Common	02/23/2026	4469	780303.94

144: Remarks and Signature

Remarks
Date of Notice	04/24/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ Claudio Tuozzolo
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)