VICOR CORP (VICR) director sells 3,791 shares in open-market trade

Rhea-AI Filing Summary

VICOR CORP director Samuel J. Anderson sold shares in an open-market trade. On this transaction, he sold 3,791 shares of common stock at a price of $171.44 per share and held 6,107 shares of common stock directly after the sale.

Insider Trade Summary

Net Seller: 3,791 shares ($649,929)

Net Sell 1 txn

Insider ANDERSON SAMUEL J

Role Director

Sold 3,791 shs ($650K)

Type	Security	Shares	Price	Value
Sale	Common Stock	3,791	$171.44	$650K

Holdings After Transaction: Common Stock — 6,107 shares (Direct)

Footnotes (1)

Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

ANDERSON SAMUEL J

(Last) (First) (Middle)

25 FRONTAGE ROAD

(Street)

ANDOVER MA 01810

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
VICOR CORP [ vicr ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
02/23/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	02/23/2026		S		3,791	D	$171.44	6,107	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

	/s/Quentin A. Fendelet Attorney in fact for Samuel J. Anderson	02/24/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What insider transaction did VICR director Samuel J. Anderson report?

Samuel J. Anderson reported an open-market sale of VICOR CORP common stock. He sold 3,791 shares in a single transaction and continued to hold 6,107 shares directly afterward, according to the Form 4 insider trading report.

How many VICR shares did Samuel J. Anderson sell in the latest Form 4?

Samuel J. Anderson sold 3,791 shares of VICOR CORP common stock. The transaction was reported as a non-derivative, open-market sale, and his direct ownership after the sale totaled 6,107 common shares, as disclosed in the Form 4 filing.

At what price did Samuel J. Anderson sell VICR common stock?

Samuel J. Anderson sold VICOR CORP common stock at $171.44 per share. The Form 4 identifies this as the transaction price for 3,791 shares sold in an open-market transaction, with the remaining directly held shares listed after the sale.

How many VICR shares does Samuel J. Anderson hold after the reported sale?

After the reported sale, Samuel J. Anderson holds 6,107 VICOR CORP common shares directly. This post-transaction ownership figure is disclosed in the Form 4 and reflects his remaining stake following the 3,791-share open-market sale.

Was the VICR insider transaction a buy or a sell by Samuel J. Anderson?

The transaction was a sell by Samuel J. Anderson. The Form 4 classifies it under code “S” as an open-market or private sale of 3,791 shares of VICOR CORP common stock, reducing his directly held share count to 6,107.

What type of security did Samuel J. Anderson trade in the VICR Form 4 filing?

Samuel J. Anderson traded VICOR CORP common stock, classified as a non-derivative security. The Form 4 details an open-market sale of 3,791 common shares at $171.44 per share and reports his remaining direct common share ownership afterward.