Vicor VP exercises options, sells 5,412 shares

Vicor Corp vice president of human resources Nancy L. Grava executed an exercise-and-sell stock option transaction.

Rhea-AI Filing Summary

Vicor Corp vice president of human resources Nancy L. Grava executed an exercise-and-sell stock option transaction. On May 5, 2026, she exercised options to acquire a total of 5,412 shares of Vicor common stock at strike prices of $33.96, $41.61, $50.00, and $60.61 per share.

On the same date, she conducted open-market sales of 5,412 shares of common stock at $265.00 per share in multiple transactions. Following these trades, the filing shows no shares of common stock held directly by Grava.

Insights

Equity compensation analyst

Routine option exercise-and-sell; net share position reduced to zero.

Vicor's VP of human resources, Nancy L. Grava, exercised non-qualified stock options covering 5,412 shares of common stock at strike prices between $33.96 and $60.61 per share on May 5, 2026. She then sold the same number of shares in open-market transactions at $265.00 per share.

This pattern reflects a classic exercise-and-sell transaction, converting option value into cash rather than increasing long-term share ownership. The filing shows no common shares directly held after these trades and no remaining derivative positions in the derivative summary. As a single-officer liquidity event with no scale context, it appears routine and is best viewed as neutral in isolation.

Insider Trade Summary

Exercise and Sale: 5,412 shares ($1.20M approx. pre-tax spread)

Exercise and Sale 12 txns

Insider Grava Nancy L

Role VP Human Resources

Sold 5,412 shs ($1.43M)

Approx. gross sale proceeds $1.43M

Approx. exercise cost $230K

Approx. pre-tax spread $1.20M

Type	Security	Shares	Price	Value
Exercise	Non Qualified Stock Option	508	$0.00	$0.00
Exercise	Non Qualified Stock Option	1,692	$0.00	$0.00
Exercise	Non Qualified Stock Option	1,228	$0.00	$0.00
Exercise	Non Qualified Stock Option	1,984	$0.00	$0.00
Exercise	Common Stock	508	$60.61	$31K
Sale	Common Stock	508	$265.00	$135K
Exercise	Common Stock	1,692	$41.61	$70K
Sale	Common Stock	1,692	$265.00	$448K
Exercise	Common Stock	1,228	$50.00	$61K
Sale	Common Stock	1,228	$265.00	$325K
Exercise	Common Stock	1,984	$33.96	$67K
Sale	Common Stock	1,984	$265.00	$526K

Holdings After Transaction: Non Qualified Stock Option — 14,752 contracts (Direct); Common Stock — 0 shares (Direct)

Key Figures

Shares sold: 5,412 shares Sale price: $265.00 per share Options exercised: 5,412 shares +2 more

5 metrics

Shares sold 5,412 shares Total common stock sold in open-market transactions on May 5, 2026

Sale price $265.00 per share Price for all reported common stock sales on May 5, 2026

Options exercised 5,412 shares Total shares acquired via option exercises on May 5, 2026

Option strike prices $33.96, $41.61, $50.00, $60.61 Exercise prices of non-qualified stock options converted to common stock

Common shares held after 0 shares Directly held Vicor common stock after reported transactions

Key Terms

Non Qualified Stock Option, open-market sale, derivative exercise/conversion, Form 4

4 terms

Non Qualified Stock Option financial

"security_title: "Non Qualified Stock Option" in derivative transactions"

open-market sale financial

"transaction_action: "open-market sale" for common stock transactions"

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" describing option exercises"

Form 4 regulatory

"INSIDER FILING DATA (Form 4) heading describing this insider report"

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 did Vicor (VICR) executive Nancy L. Grava report on this Form 4?

Nancy L. Grava reported exercising stock options and selling Vicor shares. On May 5, 2026, she exercised options for 5,412 shares of common stock, then sold 5,412 shares in open-market transactions at $265.00 per share, leaving no directly held common shares reported.

How many Vicor (VICR) shares did Nancy L. Grava sell, and at what price?

She sold 5,412 Vicor common shares at $265.00 per share. The Form 4 shows multiple open-market sale transactions on May 5, 2026, all priced at $265.00, corresponding in total to the number of shares acquired through option exercises that same day.

What stock options did Nancy L. Grava exercise in this Vicor (VICR) filing?

She exercised non-qualified stock options covering 5,412 Vicor shares. The options had exercise prices of $33.96, $41.61, $50.00, and $60.61 per share, each converting into common stock that was subsequently sold in the open market on May 5, 2026.

What is Nancy L. Grava’s Vicor (VICR) shareholding after these Form 4 transactions?

The filing shows zero directly held Vicor common shares after the trades. Each sale entry lists total shares following the transaction as 0.0000, indicating no remaining directly owned common stock as of the reported transactions on May 5, 2026.

Does this Vicor (VICR) Form 4 indicate a routine exercise-and-sell pattern?

Yes, the transactions follow a typical exercise-and-sell pattern. Nancy L. Grava exercised non-qualified stock options to acquire 5,412 shares, then sold the same 5,412 shares at $265.00 per share, effectively converting option value to cash without increasing her net share ownership.

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

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Accepted by SEC EDGAR 05/07/2026 - 12:27 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^*

Grava Nancy L

(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)
	VP Human Resources

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
Common Stock	05/05/2026		M		508	A	$60.61	508	D
Common Stock	05/05/2026		S		508	D	$265	0	D
Common Stock	05/05/2026		M		1,692	A	$41.61	1,692	D
Common Stock	05/05/2026		S		1,692	D	$265	0	D
Common Stock	05/05/2026		M		1,228	A	$50	1,228	D
Common Stock	05/05/2026		S		1,228	D	$265	0	D
Common Stock	05/05/2026		M		1,984	A	$33.96	1,984	D
Common Stock	05/05/2026		S		1,984	D	$265	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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Non Qualified Stock Option	$60.61	05/05/2026		M			508	04/25/2026	04/25/2028	Common Stock	508	$0	507	D
Non Qualified Stock Option	$41.61	05/05/2026		M			1,692	05/02/2026	05/02/2028	Common Stock	1,692	$0	3,384	D
Non Qualified Stock Option	$50	05/05/2026		M			1,228	05/02/2026	05/02/2028	Common Stock	1,228	$0	4,910	D
Non Qualified Stock Option	$33.96	05/05/2026		M			1,984	05/03/2026	05/03/2028	Common Stock	1,984	$0	5,951	D

Explanation of Responses:

	Kemble D. Morrison Attorney in fact for Nancy Grava	05/07/2026
	** 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)