Vicor VP sells 1,502 shares in open-market trade

Vicor Corporation corporate vice president of engineering Alex Gusinov reported an open-market sale of 1,502 shares of Vicor common stock at $300.00 per share on May 13, 2026.

Rhea-AI Filing Summary

Vicor Corporation corporate vice president of engineering Alex Gusinov reported an open-market sale of 1,502 shares of Vicor common stock at $300.00 per share on May 13, 2026. After this transaction, he directly holds 5,989 shares of common stock.

Insights

Equity compensation and insider-trading analyst

Vicor VP executes a modest open-market share sale while retaining a meaningful equity stake.

Corporate vice president of engineering Alex Gusinov executed an open-market sale of 1,502 shares of Vicor common stock at $300.00 per share. The transaction is coded "S", indicating a standard sale in the market or a private transaction, with no derivative exercises reported.

Following this sale, Gusinov directly holds 5,989 Vicor common shares, according to the filing. With no remaining derivative positions shown, the filing depicts a straightforward reduction in his shareholdings rather than an exercise-and-sell pattern, suggesting a routine liquidity event rather than a structural change in his equity exposure.

Insider Trade Summary

Net Seller: 1,502 shares

Net Sell 1 txn

Insider Gusinov Alex

Role Corp. Vice President Eng.

Sold 1,502 shs ($451K)

Type	Security	Shares	Price	Value
Sale	Common Stock	1,502	$300.00	$451K

Holdings After Transaction: Common Stock — 5,989 shares (Direct)

Key Figures

Shares sold: 1,502 shares Sale price per share: $300.00 per share Shares held after transaction: 5,989 shares +2 more

5 metrics

Shares sold 1,502 shares Open-market sale of common stock on May 13, 2026

Sale price per share $300.00 per share Average price for the 1,502 shares sold

Shares held after transaction 5,989 shares Direct beneficial ownership following the sale

Transaction code S Sale in open market or private transaction

Net buy/sell shares -1,502 shares Net-sell direction in transactionSummary

Key Terms

open-market sale, Common Stock, transaction code "S", Form 4

4 terms

open-market sale financial

"transaction_action is described as an open-market sale of common stock"

An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.

Common Stock financial

"security_title for the transaction is listed as Common Stock"

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

transaction code "S" regulatory

"transaction_code "S" indicates a sale in open market or private transaction"

Form 4 regulatory

"insider transaction is reported on a Form 4 for Vicor Corp"

Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.

FAQ

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

What insider transaction did Vicor (VICR) report for Alex Gusinov?

Vicor corporate vice president of engineering Alex Gusinov reported selling 1,502 shares of common stock. The sale was an open-market transaction coded "S," indicating a standard sale rather than an option exercise or tax withholding event, according to the Form 4 data.

At what price did Alex Gusinov sell Vicor (VICR) shares?

Alex Gusinov sold his Vicor common shares at an average price of $300.00 per share. This per-share price comes directly from the Form 4 transaction data describing the open-market sale of 1,502 shares on May 13, 2026.

How many Vicor (VICR) shares does Alex Gusinov hold after this Form 4 sale?

After selling 1,502 shares, Alex Gusinov directly holds 5,989 Vicor common shares. This holding figure is reported in the Form 4 as the total shares beneficially owned following the reported open-market transaction on May 13, 2026.

Was Alex Gusinov’s Vicor (VICR) transaction a purchase or a sale?

The transaction was a sale. The Form 4 lists transaction code "S" and describes it as an open-market sale, with the transaction_direction field labeled "sell" and transaction_action identified as an open-market sale of common stock.

Did the Vicor (VICR) Form 4 include any option exercises or derivative trades?

No option exercises or derivative trades are shown. The derivativeSummary section is empty, and the transactionSummary reports zero exerciseCount and derivativeTransactionCount, indicating only a single common stock sale without related derivative activity.

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

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Accepted by SEC EDGAR 05/14/2026 - 03:33 PM Learn about SEC filing dates

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 MASSACHUSETTS 01810

(City) (State) (Zip)

UNITED STATES

(Country)

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.

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/13/2026

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

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

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

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	05/13/2026		S		1,502	D	$300	5,989	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/Kemble D. Morrison Attorney in fact for Alex Gusinov	05/14/2026
	** 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.
* Form 4: SEC 1474 (03-26)