Vicor (VICR) VP Alex Gusinov sells 3,344 shares at $200

Rhea-AI Filing Summary

Vicor Corp corporate vice president of engineering Alex Gusinov reported an open-market sale of common stock. On February 26, 2026, he sold 3,344 shares at $200 per share. After this transaction, he directly owned 6,996 shares of Vicor common stock.

Insider Trade Summary

Net Seller: 3,344 shares ($668,800)

Net Sell 1 txn

Insider Gusinov Alex

Role Corp. Vice President Eng.

Sold 3,344 shs ($669K)

Type	Security	Shares	Price	Value
Sale	Common Stock	3,344	$200.00	$669K

Holdings After Transaction: Common Stock — 6,996 shares (Direct)

Footnotes (1)

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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^*

Gusinov Alex

(Last) (First) (Middle)

25 FRONTAGE RD.

(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)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Corp. Vice President Eng.

3. Date of Earliest Transaction (Month/Day/Year)
02/26/2026

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	02/26/2026		S		3,344	D	$200	6,996	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 Alex Gusinov	02/27/2026
	** 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 Vicor (VICR) report for Alex Gusinov?

Vicor reported that corporate vice president of engineering Alex Gusinov executed an open-market sale of common stock. He sold 3,344 Vicor shares at a price of $200 per share, as disclosed in a Form 4 insider trading report filed for February 26, 2026.

How many Vicor (VICR) shares did Alex Gusinov sell and at what price?

Alex Gusinov sold 3,344 shares of Vicor common stock in a single reported transaction. The sale occurred at a price of $200 per share, reflecting an open-market or private transaction, according to the Form 4 insider trading disclosure filed for February 26, 2026.

How many Vicor (VICR) shares does Alex Gusinov hold after the reported sale?

After the reported open-market sale, Alex Gusinov directly holds 6,996 shares of Vicor common stock. This post-transaction holding figure is disclosed in the Form 4, which shows his remaining direct ownership following the sale of 3,344 shares at $200 per share.

What type of transaction did Alex Gusinov report in Vicor (VICR) stock?

The Form 4 shows that Alex Gusinov executed an open-market sale of Vicor common stock. The transaction is coded as “S,” described as a sale in an open market or private transaction, covering 3,344 shares at a price of $200 per share on February 26, 2026.

Does the Vicor (VICR) Form 4 show direct or indirect ownership for Alex Gusinov?

The Form 4 indicates that Alex Gusinov’s ownership of the reported Vicor shares is direct. The transaction is marked with an ownership code of “D,” meaning the 6,996 shares he holds after the sale are directly owned rather than held through an intermediate entity.