At what prices were Claudio Tuozzolo’s VICR share sales executed?

Tuozzolo’s reported sales were executed at average prices of about $270.757 and $266.9434 per Vicor share. Both trades occurred on April 24, 2026 as open-market sales of common stock, according to the Form 4 details.

Vicor (NASDAQ: VICR) VP sells 11,035 shares after exercising options

Filing Impact

(Very High)

Filing Sentiment

(Negative)

Form Type

Rhea-AI Filing Summary

VICOR CORP corporate vice president Claudio Tuozzolo reported an exercise-and-sell transaction in company stock. On April 24, 2026, he exercised a non-qualified stock option for 731 shares of common stock at $68.48 per share.

That same day, he completed open-market sales totaling 11,035 shares of Vicor common stock at prices of about $266.94 and $270.76 per share. The option exercised was part of a grant made on June 26, 2020 that vests over five years.

Insider Trade Summary

Net Seller: 11,035 shares ($2,985,016)

Net Sell 4 txns

Insider Tuozzolo Claudio

Role Corp. Vice President

Sold 11,035 shs ($2.99M)

Type	Security	Shares	Price	Value
Exercise	Non Qualified Stock Option	731	$0.00	--
Exercise	Common Stock	731	$68.48	$50K
Sale	Common Stock	731	$266.9434	$195K
Sale	Common Stock	10,304	$270.757	$2.79M

Holdings After Transaction: Non Qualified Stock Option — 0 shares (Direct, null); Common Stock — 24,275 shares (Direct, null)

Footnotes (1)

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Key Figures

Shares sold: 11,035 shares First sale price: $270.757 per share Second sale price: $266.9434 per share +3 more

6 metrics

Shares sold 11,035 shares Total Vicor common stock sold on April 24, 2026

First sale price $270.757 per share Open-market sale of 10,304 common shares

Second sale price $266.9434 per share Open-market sale of 731 common shares

Option exercise size 731 shares Non-qualified stock option exercised into common stock

Option exercise price $68.48 per share Strike price of non-qualified stock option exercised

Net-sell shares 11,035 shares Net buy/sell direction reported as net-sell

Key Terms

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

"transaction_action: "derivative exercise/conversion""

net-sell financial

"netBuySellDirection: "net-sell""

vest over five years financial

"Options granted on 6/26/2020 and vest over five years."

Form 4 Insider Transactions: What Each Field Means →

04/27/2026 - 01:43 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^*

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)
04/24/2026

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	04/24/2026		M		731	A	$68.48	24,275	D
Common Stock	04/24/2026		S		731	D	$266.9434	23,544	D
Common Stock	04/24/2026		S		10,304	D	$270.757	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)
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	$68.48	04/24/2026		M			731	⁽¹⁾	06/26/2030	Common Stock	731	$0	0	D

Explanation of Responses:

1. Options granted on 6/26/2020 and vest over five years.

	/s/Quentin A. Fendelet Attorney in fact for Claudio Tuozzolo	04/27/2026
	** 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 activity did VICR executive Claudio Tuozzolo report?

Claudio Tuozzolo reported an exercise-and-sell transaction in Vicor stock. He exercised options for 731 common shares and sold a total of 11,035 shares in open-market trades on April 24, 2026, according to the Form 4 filing.

How many VICR shares did Claudio Tuozzolo sell in this Form 4 filing?

The Form 4 shows Tuozzolo sold 11,035 Vicor common shares. These were executed in two open-market sale transactions, one for 10,304 shares and another for 731 shares, at prices around the high-$260s per share.

What option exercise did the VICR Form 4 disclose for Claudio Tuozzolo?

The filing discloses Tuozzolo exercised a non-qualified stock option for 731 Vicor common shares at $68.48 per share. A footnote states the options were granted on June 26, 2020 and vest over five years, indicating a scheduled compensation-related event.

Did Claudio Tuozzolo retain any option position after this VICR transaction?

The Form 4 shows the specific non-qualified stock option exercised for 731 shares now has zero remaining derivative shares. The derivative summary is empty, indicating this particular option grant was fully exercised in connection with the April 24, 2026 transaction.

What does the net-sell figure in this VICR Form 4 indicate?

The transaction summary reports net-sell activity of 11,035 shares. This reflects total open-market sales of Vicor common stock on April 24, 2026, partially offset by the 731 shares acquired through the stock option exercise disclosed in the same filing.