Vicor (VICR) HR executive sells 323 shares after exercising options

Rhea-AI Filing Summary

Vicor Corp VP of Human Resources Nancy L. Grava exercised stock options and sold the resulting shares. She exercised options for 323 shares of common stock at $75.43 per share and then made an open-market sale of 323 shares at $355.00 per share. After these transactions, the filing shows no remaining common stock or option holdings reported in her name.

Insider Trade Summary

Net Seller: 323 shares ($114,665)

Net Sell 3 txns

Insider Grava Nancy L

Role VP Human Resources

Sold 323 shs ($115K)

Type	Security	Shares	Price	Value
Exercise	Non Qualified Stock Option	323	$0.00	--
Exercise	Common Stock	323	$75.43	$24K
Sale	Common Stock	323	$355.00	$115K

Holdings After Transaction: Non Qualified Stock Option — 0 shares (Direct, null); Common Stock — 323 shares (Direct, null)

Footnotes (1)

Key Figures

Shares sold: 323 shares Sale price: $355.00 per share Options exercised: 323 shares +3 more

6 metrics

Shares sold 323 shares Open-market sale of common stock

Sale price $355.00 per share Price for 323 common shares sold

Options exercised 323 shares Non Qualified Stock Option into common stock

Exercise price $75.43 per share Conversion or exercise price for options

Option expiration May 12, 2028 Non Qualified Stock Option expiration date

Net shares change -323 shares Net buy/sell direction from transaction summary

Key Terms

open-market sale, Non Qualified Stock Option, derivative security, exercise price

4 terms

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.

Non Qualified Stock Option financial

"security_title: "Non Qualified Stock Option""

derivative security financial

"transaction_code_description: "Exercise or conversion of derivative security""

A derivative security is a financial contract whose value comes from the price or performance of something else, such as a stock, bond, commodity, or market index. For investors it acts like an insurance policy or a wager: it can be used to protect against losses, lock in prices, or amplify gains and losses, so it can change a portfolio’s risk and potential return without owning the underlying asset directly.

exercise price financial

"conversion_or_exercise_price: "75.4300""

The exercise price is the fixed amount at which you can buy or sell an asset, like a stock, when using an options contract. It matters because it helps determine whether exercising the option will be profitable or not, depending on the current market price. Think of it as the set price you agree on today to buy or sell later.

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^*

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)
05/27/2026

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	05/27/2026		M		323	A	$75.43	323	D
Common Stock	05/27/2026		S		323	D	$355	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	$75.43	05/27/2026		M			323	05/12/2026	05/12/2028	Common Stock	323	$0	0	D

Explanation of Responses:

	/s/Quentin A. Fendelet Attorney in fact for Nancy Grava	05/28/2026
	** 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)

FAQ

What insider transaction did Vicor (VICR) report for Nancy L. Grava?

Vicor reported that VP of Human Resources Nancy L. Grava exercised options for 323 common shares at $75.43 per share and then sold 323 shares in an open-market transaction at $355.00 per share on May 27, 2026.

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

Nancy L. Grava sold 323 shares of Vicor common stock in an open-market transaction at $355.00 per share. This sale followed an option exercise for the same number of shares, according to the reported Form 4 insider transaction details.

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

Nancy L. Grava exercised a Non Qualified Stock Option covering 323 underlying common shares at a conversion or exercise price of $75.43 per share. The option had an exercise date of May 12, 2026 and an expiration date of May 12, 2028.

Does Nancy L. Grava still hold Vicor (VICR) shares after the reported transactions?

Following the reported option exercise and subsequent sale of 323 shares, the Form 4 shows total common stock holdings of 0 shares and total Non Qualified Stock Option holdings of 0. This indicates no remaining reported direct position after the transactions on May 27, 2026.

What is the net effect of Nancy L. Grava’s Vicor (VICR) insider transactions?

The transactions show an exercise of 323 option shares and an open-market sale of 323 common shares, resulting in net-sell activity of 323 shares. The transaction summary indicates a net-sell direction with one sale and one derivative exercise recorded for that date.