Vicor (VICR) Form 4: VP exercises options, sells at $91.94

Vicor Corp (VICR): Insider transaction reported.

Rhea-AI Filing Summary

Vicor Corp (VICR): Insider transaction reported. VP-Corporate Controller Kemble Morrison exercised non-qualified stock options and sold the resulting shares on 10/23/2025. He exercised 1,361 options at $41.61 and 738 options at $33.96, then sold 1,361 and 738 shares at $91.94 per share. Following these sales, common stock beneficially owned was 0 shares, reported as direct ownership.

Derivative holdings remained outstanding after the transactions: 2,040 non-qualified stock options tied to an exercise price of $41.61 and 2,951 non-qualified stock options tied to $33.96. The footnote states: options expire 2 years from each vesting date.

Insights

Governance and Insider Transactions Analyst

Neutral Form 4: option exercises and same-day sales at disclosed prices.

Kemble Morrison, a Vicor officer, reported option exercises at $41.61 and $33.96 on 10/23/2025, followed by sales at $91.94. The filing shows 0 common shares held directly after these sales, indicating no retained common stock from the exercised lots.

The report lists remaining derivative holdings: 2,040 and 2,951 non-qualified stock options corresponding to those grants. A footnote clarifies the options expire 2 years from each vesting date, which frames potential future exercises but does not specify timing.

As a routine insider activity disclosure, the investment impact is neutral. Actual market effect depends on holder decisions and future disclosures.

Insider Trade Summary

Exercise and Sale: 2,099 shares ($111K approx. pre-tax spread)

Exercise and Sale 6 txns

Insider Morrison Kemble D

Role Insider

Sold 2,099 shs ($193K)

Approx. gross sale proceeds $193K

Approx. exercise cost $82K

Approx. pre-tax spread $111K

Type	Security	Shares	Price	Value
Exercise	Non Qualified Stock Option	1,361	$0.00	$0.00
Exercise	Non Qualified Stock Option	738	$0.00	$0.00
Exercise	Common Stock	1,361	$41.61	$57K
Sale	Common Stock	1,361	$91.94	$125K
Exercise	Common Stock	738	$33.96	$25K
Sale	Common Stock	738	$91.94	$68K

Holdings After Transaction: Non Qualified Stock Option — 4,991 contracts (Direct); Common Stock — 0 shares (Direct)

Footnotes (1)

1. F1. Options expire 2 years from each vesting date.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What did Vicor (VICR) disclose in this Form 4?

The VP-Corporate Controller, Kemble Morrison, exercised options and sold the resulting shares on 10/23/2025, then reported 0 common shares beneficially owned afterward.

How many shares were involved and at what prices for VICR?

He exercised 1,361 options at $41.61 and 738 options at $33.96, then sold 1,361 and 738 shares at $91.94.

What options remain outstanding for the reporting person at Vicor (VICR)?

Post-transaction, the filing shows 2,040 and 2,951 non-qualified stock options outstanding, associated with the respective grants.

What is the reporting person’s role at Vicor (VICR)?

Kemble Morrison is an Officer of the issuer, titled VP-Corporate Controller.

What does the Form 4 say about option expiration at VICR?

A footnote states: Options expire 2 years from each vesting date.

Was the filing made by one or multiple reporting persons for VICR?

It was filed by one reporting person.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 10/27/2025 - 03:19 PM Learn about SEC filing dates

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^*

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)
10/23/2025

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	10/23/2025		M		1,361	A	$41.61	1,361	D
Common Stock	10/23/2025		S		1,361	D	$91.94	0	D
Common Stock	10/23/2025		M		738	A	$33.96	738	D
Common Stock	10/23/2025		S		738	D	$91.94	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	$41.61	10/23/2025		M			1,361	05/02/2025	(1)	Common Stock	1,361	$0	2,040	D
Non Qualified Stock Option	$33.96	10/23/2025		M			738	05/03/2025	(1)	Common Stock	738	$0	2,951	D

Explanation of Responses:

1. Options expire 2 years from each vesting date.

	/s/Quentin A. Fendelet Attorney in fact for Kemble Morrison	10/27/2025
	** 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.