VICOR (VICR) vice president exercises options, sells 6,132 common shares

Rhea-AI Filing Summary

VICOR CORP corporate vice president Claudio Tuozzolo reported an exercise-and-sell stock transaction. On May 6, 2026, he exercised options to acquire a total of 6,132 shares of common stock through three derivative exercises at strike prices of $60.61, $41.61, and $50.00 per share. On the same day, he completed three open-market sales totaling 6,132 shares of common stock at a sale price of $276.9255 per share. Following these transactions, he directly held 13,240 shares of VICOR CORP common stock.

Insider Trade Summary

Net Seller: 6,132 shares ($1,698,107)

Net Sell 9 txns

Insider Tuozzolo Claudio

Role Corp. Vice President

Sold 6,132 shs ($1.70M)

Type	Security	Shares	Price	Value
Exercise	Non Qualified Stock Option	1,000	$0.00	--
Exercise	Non Qualified Stock Option	3,930	$0.00	--
Exercise	Non Qualified Stock Option	1,202	$0.00	--
Exercise	Common Stock	1,000	$50.00	$50K
Sale	Common Stock	1,000	$276.9255	$277K
Exercise	Common Stock	3,930	$41.61	$164K
Sale	Common Stock	3,930	$276.9255	$1.09M
Exercise	Common Stock	1,202	$60.61	$73K
Sale	Common Stock	1,202	$276.9255	$333K

Holdings After Transaction: Non Qualified Stock Option — 25,727 shares (Direct, null); Common Stock — 14,240 shares (Direct, null)

Footnotes (1)

Key Figures

Shares sold: 6,132 shares Sale price: $276.9255 per share Options exercised: 6,132 shares +4 more

7 metrics

Shares sold 6,132 shares Open-market sales of common stock on May 6, 2026

Sale price $276.9255 per share Price for reported open-market sales of common stock

Options exercised 6,132 shares Total common shares acquired via option exercises

Option strike price 1 $60.61 per share Non-qualified stock option exercise into common stock

Option strike price 2 $41.61 per share Non-qualified stock option exercise into common stock

Option strike price 3 $50.00 per share Non-qualified stock option exercise into common stock

Shares held after 13,240 shares Direct VICOR common stock holdings after transactions

Key Terms

open-market sale, Non Qualified Stock Option, derivative security, exercise or conversion, +1 more

5 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 or conversion financial

"transaction_action": "derivative exercise/conversion""

transaction_code "S" financial

"transaction_code": "S""

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^*

Tuozzolo Claudio

(Last) (First) (Middle)

25 FRONTAGE ROAD

(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)

X	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Corp. Vice President

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/06/2026

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	05/06/2026		M		1,000	A	$50	14,240	D
Common Stock	05/06/2026		S		1,000	D	$276.9255	13,240	D
Common Stock	05/06/2026		M		3,930	A	$41.61	17,170	D
Common Stock	05/06/2026		S		3,930	D	$276.9255	13,240	D
Common Stock	05/06/2026		M		1,202	A	$60.61	14,442	D
Common Stock	05/06/2026		S		1,202	D	$276.9255	13,240	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	$50	05/06/2026		M			1,000	05/02/2026	05/02/2028	Common Stock	1,000	$0	25,727	D
Non Qualified Stock Option	$41.61	05/06/2026		M			3,930	05/02/2026	05/02/2028	Common Stock	3,930	$0	7,860	D
Non Qualified Stock Option	$60.61	05/06/2026		M			1,202	04/25/2026	04/25/2028	Common Stock	1,202	$0	1,202	D

Explanation of Responses:

	/s/Kemble D. Morrison Attorney in fact for Claudio Tuozzolo	05/08/2026
	** 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 transactions did VICR executive Claudio Tuozzolo report on May 6, 2026?

Claudio Tuozzolo reported exercising options for 6,132 VICR common shares and selling 6,132 shares in open-market trades on May 6, 2026. This reflects an exercise-and-sell pattern rather than a standalone purchase, with his direct holdings updated after the activity.

How many VICR shares did Claudio Tuozzolo sell and at what price?

He sold 6,132 VICR common shares through three open-market sales at a reported price of $276.9255 per share. These sales occurred on May 6, 2026, and were disclosed as non-derivative transactions in the Form 4 insider filing.

What stock options did Claudio Tuozzolo exercise in the VICR Form 4 filing?

He exercised non-qualified stock options covering 6,132 VICR shares in total, with strike prices of $60.61, $41.61, and $50.00 per share. Each option exercise converted derivative positions into common stock before the same-day open-market sales.

How many VICR shares does Claudio Tuozzolo hold after these transactions?

After the reported May 6, 2026 transactions, Claudio Tuozzolo directly holds 13,240 VICR common shares. This post-transaction balance reflects the combined effect of his option exercises and open-market sales disclosed in the Form 4 filing.

Does the VICR Form 4 show net buying or selling by Claudio Tuozzolo?

The Form 4 shows a net-sell pattern, with 6,132 VICR shares sold and 6,132 shares acquired via option exercises. While options were exercised, the matching share sales produce net selling in terms of common stock exposure reported for that date.

What roles does Claudio Tuozzolo hold at VICR mentioned in this Form 4?

The filing identifies Claudio Tuozzolo as both a director and an officer of VICOR CORP, serving as corporate vice president. His position classifies these disclosed trades as insider transactions subject to ongoing reporting under Section 16 rules.