Vinciarelli Sells Shares Under 10b5-1 Plan

Patrizio Vinciarelli reported planned sales of Common Stock under a Rule 10b5-1 plan.

Accepted by SEC EDGAR 03/11/2026 - 04:40 PM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

Patrizio Vinciarelli reported planned sales of Common Stock under a Rule 10b5-1 plan. The filing lists multiple 10b5-1 sales of Common shares on several dates, including 03/10/2026 (50,000 shares for $8,862,570.00) and prior trades in December and March 2026. The notices record share counts and proceeds for each reported sale.

Insights

Insider Transactions Analyst

10b5-1 plan-driven disposals by an executive, recorded as multiple routine sales.

Patrizio Vinciarelli reported a sequence of Rule 10b5-1 sales, with multiple entries showing 50,000-share transactions on 03/10/2026, 03/09/2026, 03/06/2026, 03/05/2026, and 03/04/2026, each with associated proceeds listed in dollars. The excerpt also lists several December 2025 sales with smaller lots.

These entries are mechanistic disclosures of planned sales; the filing attributes each sale to a 10b5-1 arrangement. Cash flow recipients and any holding changes beyond the reported sales are not detailed in the excerpt. Subsequent filings or Form 4/5 entries may show resulting post-transaction holdings.

FAQ

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

What did the Form 144 for VICR disclose about insider sales?

It discloses multiple planned sales by Patrizio Vinciarelli under a Rule 10b5-1 plan. The filing lists individual sale dates, share counts, and proceeds such as 50,000 shares for $8,862,570.00 on 03/10/2026 and earlier December 2025 lots.

Were the sales reported as part of a 10b5-1 trading plan for VICR?

Yes. The notices are labeled as 10b5-1 sales, indicating they were executed under pre-established trading instructions. Each line item in the excerpt ties a specific date to shares sold and cash proceeds, consistent with plan-based dispositions.

How many shares and proceeds are shown for the March 2026 transactions?

The excerpt shows multiple March 2026 entries of 50,000 shares each on several dates with proceeds recorded (for example, $8,862,570.00 on 03/10/2026). Individual proceeds are listed next to each corresponding sale date.

Does the filing state the insider's remaining holdings after these sales?

No. The provided excerpt lists each sale's share count and proceeds but does not state post-transaction beneficial ownership or total shares held after the sales. Follow-up filings would show resulting positions if disclosed.

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

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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	0000901484
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	9784702900
Name of Person for Whose Account the Securities are To Be Sold	PATRIZIO VINCIARELLI
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	Director
Relationship to Issuer	Officer
Relationship to Issuer	10% Stockholder

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	50000	8790000.00	33646426	03/11/2026	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	05/22/2025	Previously Exercised Stock Options	Issuer			37271	05/22/2025	Cash
Common	11/10/1981	Founders Shares	Issuer			12729	11/10/1981	N/A

* 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
10b5-1 Sales for PATRIZIO VINCIARELLI 25 Frontage Road Andover MA 01810	Common	03/10/2026	50000	8862570.00
10b5-1 Sales for PATRIZIO VINCIARELLI 25 Frontage Road Andover MA 01810	Common	03/09/2026	50000	8212935.00
10b5-1 Sales for PATRIZIO VINCIARELLI 25 Frontage Road Andover MA 01810	Common	03/06/2026	50000	8314785.00
10b5-1 Sales for PATRIZIO VINCIARELLI 25 Frontage Road Andover MA 01810	Common	03/05/2026	50000	9341275.00
10b5-1 Sales for PATRIZIO VINCIARELLI 25 Frontage Road Andover MA 01810	Common	03/04/2026	50000	10077245.00
10b5-1 Sales for PATRIZIO VINCIARELLI 25 Frontage Road Andover MA 01810	Common	12/31/2025	1883	215336.30
10b5-1 Sales for PATRIZIO VINCIARELLI 25 Frontage Road Andover MA 01810	Common	12/30/2025	20000	2259535.98
10b5-1 Sales for PATRIZIO VINCIARELLI 25 Frontage Road Andover MA 01810	Common	12/29/2025	5917	657962.22
10b5-1 Sales for PATRIZIO VINCIARELLI 25 Frontage Road Andover MA 01810	Common	12/26/2025	20000	2202474.09
10b5-1 Sales for PATRIZIO VINCIARELLI 25 Frontage Road Andover MA 01810	Common	12/24/2025	12400	1349971.88
10b5-1 Sales for PATRIZIO VINCIARELLI 25 Frontage Road Andover MA 01810	Common	12/23/2025	20000	2155900.00
10b5-1 Sales for PATRIZIO VINCIARELLI 25 Frontage Road Andover MA 01810	Common	12/22/2025	20000	2105570.63
10b5-1 Sales for PATRIZIO VINCIARELLI 25 Frontage Road Andover MA 01810	Common	12/19/2025	20000	2060326.12

144: Remarks and Signature

Remarks
Date of Notice	03/11/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	11/03/2025
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/ Patrizio Vinciarelli
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)