VICR insider exercised 5,508 options, ends with 33,622 shares

Rhea-AI Filing Summary

Vicor Corp (VICR) insider activity: Director and Corporate Vice President Claudio Tuozzolo exercised options and sold shares on 10/24/2025. He exercised 1,061 options at $47.15, 3,931 at $41.61, and 516 at $19.35, then sold the same 5,508 shares at an average price of $90.5706. Following these transactions, he held 33,622 shares directly. One option grant remains with 11,790 non-qualified stock options outstanding after the reported exercise.

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
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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 MA 01810

(City) (State) (Zip)

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

3. Date of Earliest Transaction (Month/Day/Year)
10/24/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

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	10/24/2025		M		1,061	A	$47.15	34,683	D
Common Stock	10/24/2025		S		1,061	D	$90.5706	33,622	D
Common Stock	10/24/2025		M		3,931	A	$41.61	37,553	D
Common Stock	10/24/2025		S		3,931	D	$90.5706	33,622	D
Common Stock	10/24/2025		M		516	A	$19.35	34,138	D
Common Stock	10/24/2025		S		516	D	$90.5706	33,622	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	$47.15	10/24/2025		M			1,061	06/15/2023	06/15/2028	Common Stock	1,061	$0	0	D
Non Qualified Stock Option	$41.61	10/24/2025		M			3,931	05/02/2025	(1)	Common Stock	3,931	$0	11,790	D
Non Qualified Stock Option	$19.35	10/24/2025		M			516	06/16/2022	06/16/2027	Common Stock	516	$0	0	D

Explanation of Responses:

1. Options expire 2 years from each vesting date.

	/s/Quentin A. Fendelet Attorney in fact for Claudio Tuozzolo	10/28/2025
	** 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.

FAQ

What did VICR's insider report on Form 4?

A director and corporate vice president exercised options and sold the resulting shares on 10/24/2025.

How many VICR shares were exercised and sold?

He exercised and sold a total of 5,508 shares (1,061 + 3,931 + 516).

At what prices were the option exercises and sales?

Exercises were at $47.15, $41.61, and $19.35; sales were at $90.5706.

What are the insider’s holdings after the transactions?

He directly holds 33,622 shares after the reported transactions.

Does the insider have remaining options?

Yes. One non-qualified stock option grant shows 11,790 derivative securities remaining after the exercise.

What transaction codes were used on the Form 4?

Code M for option exercises and code S for open market sales.