Vicor Corp (VICR) VP exercises options and sells 4,571 shares

Filing Impact

(Neutral)

Filing Sentiment

(Neutral)

Form Type

Rhea-AI Filing Summary

Vicor Corp executive Robert Gendron, Corp. VP – Marketing, reported a combined option exercise and share sale on May 26, 2026. He exercised non-qualified stock options to acquire 4,571 shares of common stock at strike prices between $32.97 and $75.43 per share, then sold 4,571 shares in open-market transactions at $330.00 per share. The transactions reflect an exercise-and-sell pattern with a net disposition of common shares on that date.

Insider Trade Summary

Net Seller: 4,571 shares ($1,508,430)

Net Sell 18 txns

Insider GENDRON ROBERT

Role Corp. VP - Marketing

Sold 4,571 shs ($1.51M)

Type	Security	Shares	Price	Value
Exercise	Non Qualified Stock Option	577	$0.00	--
Exercise	Non Qualified Stock Option	794	$0.00	--
Exercise	Non Qualified Stock Option	480	$0.00	--
Exercise	Non Qualified Stock Option	1,184	$0.00	--
Exercise	Non Qualified Stock Option	817	$0.00	--
Exercise	Non Qualified Stock Option	719	$0.00	--
Exercise	Common Stock	577	$60.61	$35K
Sale	Common Stock	577	$330.00	$190K
Exercise	Common Stock	794	$41.61	$33K
Sale	Common Stock	794	$330.00	$262K
Exercise	Common Stock	480	$75.43	$36K
Sale	Common Stock	480	$330.00	$158K
Exercise	Common Stock	1,184	$33.96	$40K
Sale	Common Stock	1,184	$330.00	$391K
Exercise	Common Stock	817	$32.97	$27K
Sale	Common Stock	817	$330.00	$270K
Exercise	Common Stock	719	$50.00	$36K
Sale	Common Stock	719	$330.00	$237K

Holdings After Transaction: Non Qualified Stock Option — 577 shares (Direct, null); Common Stock — 577 shares (Direct, null)

Footnotes (1)

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Key Figures

Shares sold: 4,571 shares Sale price: $330.00 per share Shares exercised: 4,571 shares +3 more

6 metrics

Shares sold 4,571 shares Open-market sales of common stock on May 26, 2026

Sale price $330.00 per share Price for all reported common stock sales

Shares exercised 4,571 shares Common shares acquired via option exercises on May 26, 2026

Option strike price $50.00 per share Non-qualified stock option exercise into 719 common shares

Option strike price $32.97 per share Non-qualified stock option exercise into 817 common shares

Highest option strike $75.43 per share Non-qualified stock option exercise into 480 common shares

Key Terms

Non Qualified Stock Option, open-market sale, derivative exercise/conversion, net-sell, +1 more

5 terms

Non Qualified Stock Option financial

"security_title: "Non Qualified Stock Option""

open-market sale financial

"transaction_action: "open-market sale""

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.

derivative exercise/conversion financial

"transaction_action: "derivative exercise/conversion""

net-sell financial

"netBuySellDirection: "net-sell""

transaction_code "M" regulatory

"transaction_code: "M" indicates an exercise of derivative security"

Form 4 Insider Transactions: What Each Field Means →

05/27/2026 - 05:30 PM

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^*

GENDRON ROBERT

(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. VP - Marketing

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/26/2026

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	05/26/2026		M		577	A	$60.61	577	D
Common Stock	05/26/2026		S		577	D	$330	0	D
Common Stock	05/26/2026		M		794	A	$41.61	794	D
Common Stock	05/26/2026		S		794	D	$330	0	D
Common Stock	05/26/2026		M		480	A	$75.43	480	D
Common Stock	05/26/2026		S		480	D	$330	0	D
Common Stock	05/26/2026		M		1,184	A	$33.96	1,184	D
Common Stock	05/26/2026		S		1,184	D	$330	0	D
Common Stock	05/26/2026		M		817	A	$32.97	817	D
Common Stock	05/26/2026		S		817	D	$330	0	D
Common Stock	05/26/2026		M		719	A	$50	719	D
Common Stock	05/26/2026		S		719	D	$330	0	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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Non Qualified Stock Option	$60.61	05/26/2026		M			577	04/25/2026	⁽¹⁾	Common Stock	577	$0	577	D
Non Qualified Stock Option	$41.61	05/26/2026		M			794	05/02/2026	⁽¹⁾	Common Stock	794	$0	1,588	D
Non Qualified Stock Option	$75.43	05/26/2026		M			480	05/12/2026	⁽¹⁾	Common Stock	480	$0	0	D
Non Qualified Stock Option	$33.96	05/26/2026		M			1,184	05/03/2026	⁽¹⁾	Common Stock	1,184	$0	3,550	D
Non Qualified Stock Option	$32.97	05/26/2026		M			817	05/10/2026	⁽¹⁾	Common Stock	817	$0	2,448	D
Non Qualified Stock Option	$50	05/26/2026		M			719	05/02/2026	⁽¹⁾	Common Stock	719	$0	2,873	D

Explanation of Responses:

1. Options expire 2 years from each vesting date.

	/s/Quentin A. Fendelet Attorney in fact for Robert Gendron	05/27/2026
	** 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.
* Form 4: SEC 1474 (03-26)

Source: View Original Filing on SEC EDGAR

FAQ

What insider transaction did Vicor Corp (VICR) report for Robert Gendron?

Vicor Corp reported that executive Robert Gendron exercised non-qualified stock options for 4,571 common shares and sold 4,571 shares in open-market trades at $330 per share on May 26, 2026, converting option awards into cash through an exercise-and-sell sequence.

How many Vicor Corp (VICR) shares did Robert Gendron sell and at what price?

Robert Gendron sold 4,571 shares of Vicor Corp common stock at $330.00 per share. These open-market sales occurred on May 26, 2026, immediately after exercising non-qualified stock options for the same number of shares acquired at significantly lower strike prices.

What option strike prices were involved in the Vicor Corp (VICR) Form 4 filing?

The Form 4 shows option exercises for Vicor Corp at strike prices of $50.00, $32.97, $33.96, $75.43, $41.61, and $60.61 per share. Each exercise produced common shares that were then sold in the market at $330.00 per share on May 26, 2026.

What does the transactionSummary show in the Vicor Corp (VICR) insider filing?

The transactionSummary reports six sales totaling 4,571 shares and six derivative exercises also totaling 4,571 shares. It indicates a net-sell direction of 4,571 common shares, reflecting that all shares acquired through option exercises were sold the same day.

What role does Robert Gendron hold at Vicor Corp (VICR) in this Form 4?

In this Form 4, Robert Gendron is identified as an officer of Vicor Corp with the title Corp. VP – Marketing. The reported transactions relate to his holdings of Vicor common stock and non-qualified stock options as an executive of the company.