Vicor (VICR) VP sells 1,640 shares after exercising stock options

Rhea-AI Filing Summary

Vicor Corp corporate vice president of engineering Sean Crilly reported multiple stock option exercises and share sales in company stock. On March 5, 2026, he exercised options into 1,640 shares of common stock at exercise prices of $75.43, $41.61, and $60.61 per share. He then sold 1,640 shares of common stock in open-market transactions at an average price of $180.3243 per share, leaving him with 9,729 shares of Vicor common stock held directly after the reported transactions.

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

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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^*

CRILLY SEAN

(Last) (First) (Middle)

25 FRONTAGE RD.

(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)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Corp. VP-Eng., Pwr Syst

3. Date of Earliest Transaction (Month/Day/Year)
03/05/2026

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	03/05/2026		M		300	A	$75.43	10,029	D
Common Stock	03/05/2026		S		300	D	$180.3243	9,729	D
Common Stock	03/05/2026		M		786	A	$41.61	10,515	D
Common Stock	03/05/2026		S		786	D	$180.3243	9,729	D
Common Stock	03/05/2026		M		554	A	$60.61	10,283	D
Common Stock	03/05/2026		S		554	D	$180.3243	9,729	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	03/05/2026		M			300	05/12/2025	(1)	Common Stock	300	$0	598	D
Non Qualified Stock Option	$41.61	03/05/2026		M			786	05/02/2025	(1)	Common Stock	786	$0	3,141	D
Non Qualified Stock Option	$60.61	03/05/2026		M			554	04/25/2025	(1)	Common Stock	554	$0	1,662	D

Explanation of Responses:

1. Options expire 2 years from each vesting date.

	/s/Quentin A. Fendelet Attorney in Fact for Sean Crilly	03/06/2026
	** 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).
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FAQ

What insider transactions did VICR executive Sean Crilly report?

Sean Crilly reported option exercises and share sales in Vicor Corp stock. On March 5, 2026, he exercised options into 1,640 shares of common stock and then sold 1,640 shares in open-market transactions, according to the Form 4 filing.

How many VICR shares did Sean Crilly sell in this Form 4 filing?

Sean Crilly sold 1,640 shares of Vicor Corp common stock. The sales occurred on March 5, 2026, in open-market or private transactions at a reported price of $180.3243 per share, as disclosed in the Form 4 insider trading report.

What option exercises did Sean Crilly report for VICR on March 5, 2026?

Sean Crilly exercised Vicor stock options into 1,640 common shares on March 5, 2026. The exercises covered grants with exercise prices of $75.43, $41.61, and $60.61 per share, all classified as exercises or conversions of derivative securities.

How many VICR shares does Sean Crilly hold after these transactions?

After completing the reported exercises and sales, Sean Crilly directly holds 9,729 shares of Vicor Corp common stock. This figure reflects his direct ownership immediately following the March 5, 2026 transactions disclosed in the Form 4 filing.

What is Sean Crilly’s role at Vicor Corp in this insider filing?

In this insider report, Sean Crilly is identified as Vicor Corp’s Corporate Vice President – Engineering, Power Systems. His position qualifies him as an officer required to report option exercises and common stock trades on Form 4 under SEC rules.