Vicor grants 1,578 stock options to VP

Vicor Corp corporate vice president of marketing Robert Gendron received a new stock option grant.

Accepted by SEC EDGAR 05/06/2026 - 04:11 PM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

Vicor Corp corporate vice president of marketing Robert Gendron received a new stock option grant. He was awarded non-qualified options for 1,578 shares of common stock at an exercise price of $266.005 per share.

The options were granted under Vicor’s Amended and Restated 2000 Stock Option and Incentive Plan on May 5, 2026. They vest over a five-year period, and each tranche expires two years after its respective vesting date. Following this grant, Gendron holds options for 1,578 underlying shares directly.

Insider Trade Summary

Grant/Award: 1,578 shares

Grant/Award 1 txn

Insider GENDRON ROBERT

Role Corp. VP - Marketing

Type	Security	Shares	Price	Value
Grant/Award	Non Qualified Stock Option	1,578	$0.00	$0.00

Holdings After Transaction: Non Qualified Stock Option — 1,578 contracts (Direct)

Holdings Before and After: Non Qualified Stock Option, 0 to 1,578 contracts (Direct)

Footnotes (2)

1. F1. Granted under the Companys Amended and Restated 2000 Stock Option and Incentive Plan on May 5, 2026 and vest over a five year period.
2. F2. Options expire 2 years from each vesting date.

Key Figures

Option grant size: 1,578 options Exercise price: $266.005 per share Underlying shares: 1,578 shares +4 more

7 metrics

Option grant size 1,578 options Non-qualified stock option grant to Robert Gendron

Exercise price $266.005 per share Conversion/exercise price of granted options

Underlying shares 1,578 shares Common stock underlying granted options

Total options after grant 1,578 options Total derivative shares following transaction

Vesting period 5 years Options vest over a five-year period

Post-vest expiration 2 years Options expire two years from each vesting date

Grant date May 5, 2026 Date options granted under 2000 Stock Option and Incentive Plan

Key Terms

Non Qualified Stock Option, Amended and Restated 2000 Stock Option and Incentive Plan, vesting, expiration date

4 terms

Non Qualified Stock Option financial

"security_title: "Non Qualified Stock Option""

Amended and Restated 2000 Stock Option and Incentive Plan financial

"Granted under the Companys Amended and Restated 2000 Stock Option and Incentive Plan on May 5, 2026"

vesting financial

"granted ... on May 5, 2026 and vest over a five year period"

Vesting is the process by which you earn full ownership of something, like company stock or a retirement benefit, over time. It’s like earning the right to keep a gift piece by piece the longer you stay with a company, making sure employees stay committed before they receive all the benefits.

expiration date financial

"Options expire 2 years from each vesting date."

The expiration date is the deadline after which a financial contract, such as an option or a futures agreement, is no longer valid or can be exercised. It matters to investors because it determines the timeframe during which they can take action or benefit from the contract, similar to how a coupon or a food item has a limited period of usefulness. Once the expiration date passes, the contract loses its value or ability to be used.

FAQ

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

What did Vicor (VICR) insider Robert Gendron report in this Form 4?

Robert Gendron reported receiving a grant of non-qualified stock options for 1,578 shares of Vicor common stock. These options were awarded as compensation, not purchased on the open market, and are linked to future vesting and service conditions.

What are the key terms of Robert Gendron’s Vicor (VICR) stock option grant?

The grant covers 1,578 non-qualified stock options with an exercise price of $266.005 per share. The options were granted under Vicor’s Amended and Restated 2000 Stock Option and Incentive Plan and vest over a five-year period, subject to continued service.

When do Robert Gendron’s Vicor (VICR) stock options vest and expire?

The options granted to Robert Gendron vest over a five-year period starting from May 5, 2026. Each vested portion has an expiration date two years after its respective vesting date, limiting how long he can choose to exercise the options.

How many Vicor (VICR) shares underlie Robert Gendron’s new stock options?

The new option grant covers 1,578 shares of Vicor common stock as the underlying security. Following this grant, the filing shows Gendron holding options corresponding to 1,578 shares, all reported as directly owned derivative securities.

Is Robert Gendron’s Vicor (VICR) Form 4 transaction a market purchase or sale?

No, the transaction is a grant of non-qualified stock options classified as an acquisition under a compensation plan. It is coded as a grant or award (transaction code A), rather than an open-market purchase or sale of Vicor common stock.

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

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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)
05/05/2026

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

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
Non Qualified Stock Option	$266.005	05/05/2026		A		1,578		(1)	(2)	Common Stock	1,578	$0	1,578	D

Explanation of Responses:

1. Granted under the Companys Amended and Restated 2000 Stock Option and Incentive Plan on May 5, 2026 and vest over a five year period.

2. Options expire 2 years from each vesting date.

	/s/Kemble D. Morrison Attorney in fact for Robert Gendron	05/06/2026
	** 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)