Vicor (VICR) VP sells 2,572 shares after exercising options

Rhea-AI Filing Summary

Vicor Corp executive Kemble D. Morrison, VP-Corporate Controller, reported option-related transactions and share sales. On 2026-02-24, he exercised non-qualified stock options to acquire 2,572 shares of common stock at exercise prices of 75.4300, 60.6100, and 69.0400 per share, then sold 2,572 shares of common stock in open-market transactions at 180.0828 per share. Following these sales, his reported directly owned common stock position in these transactions was reduced to zero.

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

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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^*

Morrison Kemble D

(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)

	Director		10% Owner
	Officer (give title below)	X	Other (specify below)
			VP-Corporate Controller

3. Date of Earliest Transaction (Month/Day/Year)
02/24/2026

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	02/24/2026		M		762	A	$75.43	762	D
Common Stock	02/24/2026		S		762	D	$180.0828	0	D
Common Stock	02/24/2026		M		744	A	$60.61	744	D
Common Stock	02/24/2026		S		744	D	$180.0828	0	D
Common Stock	02/24/2026		M		1,066	A	$69.04	1,066	D
Common Stock	02/24/2026		S		1,066	D	$180.0828	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	02/24/2026		M			762	05/12/2025	(1)	Common Stock	762	$0	380	D
Non Qualified Stock Option	$60.61	02/24/2026		M			744	04/25/2025	(1)	Common Stock	744	$0	744	D
Non Qualified Stock Option	$69.04	02/24/2026		M			1,066	06/24/2025	06/24/2030	Common Stock	1,066	$0	0	D

Explanation of Responses:

1. Options expire 2 years from each vesting date.

	/s/Quentin A. Fendelet. Attorney in fact for Kemble D. Morrison	02/25/2026
	** 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 Kemble D. Morrison report on this Form 4?

Kemble D. Morrison reported exercising non-qualified stock options and selling the resulting shares. He acquired 2,572 Vicor common shares through option exercises and then sold 2,572 shares in open-market transactions, effectively offsetting the newly acquired shares on the same reported date.

How many VICR shares did Kemble D. Morrison sell according to this Form 4?

The Form 4 reports open-market sales totaling 2,572 shares of Vicor common stock. These sales occurred in three blocks of 762, 744, and 1,066 shares, each at a reported sale price of 180.0828 per share on the same transaction date.

At what prices did Kemble D. Morrison exercise his VICR stock options?

Morrison exercised non-qualified stock options for Vicor common stock at exercise prices of 75.4300, 60.6100, and 69.0400 per share. These option exercises converted derivative securities into common shares, which were then reported as acquired before the corresponding open-market sales.

What was Kemble D. Morrison’s reported VICR common stock ownership after the transactions?

After the reported transactions, Morrison’s directly owned Vicor common stock from these trades was shown as zero shares. Each sale entry lists total shares following the transaction as 0.0000, indicating no remaining directly held common shares associated with these specific transactions.

What types of securities are involved in this VICR Form 4 filing?

The filing involves non-qualified stock options and Vicor common stock. Morrison first exercised derivative securities labeled as non-qualified stock options, then reported corresponding acquisitions and sales of common stock, all on the same transaction date, reflecting a series of option exercises followed by share disposals.