Insider files to sell 4,000 shares of Vicor common stock

Patrizio Vinciarelli reported a proposed sale of 4,000 shares of Common Stock of Vicor Corporation via open‑market transactions.

Rhea-AI Filing Summary

Patrizio Vinciarelli reported a proposed sale of 4,000 shares of Common Stock of Vicor Corporation via open‑market transactions. The filing lists an associated dollar figure of $1,092,343.20 and shows 31,509 shares sold during the past three months. The sale method is stated as open market.

Insights

Securities Compliance Analyst

Routine Form 144 sale notification for an officer/director reported.

The filing documents a proposed disposition of 4,000 shares by Patrizio Vinciarelli using open‑market transactions. It also records 31,509 shares sold in the prior three months and a dollar figure of $1,092,343.20.

Compliance focus: confirm trade dates, broker reporting, and Rule 144 holding/notice requirements are met; subsequent Form 4 or broker reports will show completion. Timing and additional constraints are not provided in the excerpt.

Key Figures

Proposed shares to sell: 4,000 shares Shares sold prior 3 months: 31,509 shares Dollar amount listed: $1,092,343.20 +2 more

5 metrics

Proposed shares to sell 4,000 shares Proposed sale by Patrizio Vinciarelli via open market

Shares sold prior 3 months 31,509 shares Securities sold during the past three months

Dollar amount listed $1,092,343.20 Amount appearing in the filing excerpt

Original purchase date 12/05/2017 Purchase date shown for the securities

Broker-dealer Raymond James & Associates Broker listed on the filing

Key Terms

Form 144, open‑market, money market

3 terms

Form 144 regulatory

"Proposed sale notice listing 4,000 shares and prior three‑month sales"

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.

open‑market market

"Sale method stated as open‑market transactions"

money market financial

"Transaction context includes the term 'money market' in the securities line"

A money market is the part of the financial system where very short-term, low-risk loans and investments are made, such as government bills, bank certificates, and commercial paper. It matters to investors because it’s where cash is kept when safety and quick access matter—like a parking spot for money that earns a small return and can be moved fast—so changes in interest rates or market stress directly affect returns and liquidity.

FAQ

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

What did the Form 144 filed for VICR report?

The Form 144 reports a proposed open‑market sale of 4,000 shares by Patrizio Vinciarelli. It also notes 31,509 shares were sold in the prior three months and lists $1,092,343.20 in the filing.

Who is the selling party named in the VICR Form 144?

The filing names Patrizio Vinciarelli with an address in Andover, MA as the reporting seller. The broker listed is Raymond James & Associates at the address shown in the excerpt.

How were the shares proposed to be sold according to the filing?

The filing specifies the proposed method as open‑market transactions. It also references a money market and the original purchase date of 12/05/2017 for the securities involved.

Does this Form 144 show completed trades for VICR?

No; Form 144 is a notice of proposed sale. The excerpt shows a proposed sale of 4,000 shares and prior sales of 31,509 shares in the past three months. Execution details are not included here.

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

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Accepted by SEC EDGAR 04/24/2026 - 04:10 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	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 CORP
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	VINCIARELLI PATRIZIO
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
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	Raymond James & Associates 880 Carillon Parkway St. Petersburg FL 33716	4000	1092343.20	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	12/05/2017	Purchase	Open market			31509	12/05/2017	money market

* 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
Patrizio Vinciarelli 25 FRONTAGE ROAD Andover MA 01810	Vicor Corporation	04/24/2026	4000	1092343.00

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	Rashida Mitchell, as duly authorized representative of Raymond James & Associates, Inc., as attorney-in-fact for Patrizio Vinciarelli
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)