Vicor Corp (NASDAQ: VICR) director sells shares under 10b5-1 plan

Rhea-AI Filing Summary

Vicor Corp director Andrew D'Amico exercised stock options for 400 shares at $100 and sold 400 common shares in two trades at $140 and $145 on January 5, 2026.

The Form 4 shows 600 stock options remaining after these transactions. The sales were carried out under a Rule 10b5-1 trading plan adopted on September 12, 2024, indicating they were pre-scheduled rather than discretionary market-timing trades.

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).

X

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^*

D'Amico Andrew

(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)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
01/05/2026

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	01/05/2026		M		200	A	$100	200	D
Common Stock	01/05/2026		S(1)		200	D	$140	0	D
Common Stock	01/05/2026		M		200	A	$100	200	D
Common Stock	01/05/2026		S(1)		200	D	$145	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	$100	01/05/2026		M			400	06/25/2025	06/25/2031	Common Stock	400	$0	600	D

Explanation of Responses:

1. This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 12, 2024.

	/s/Quentin A. Fendelet Attorney in fact for Andrew D'Amico	01/06/2026
	** 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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
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FAQ

What insider activity did Vicor Corp (VICR) report in this Form 4?

The filing reports that director Andrew D'Amico exercised stock options for 400 shares at $100 per share and sold a total of 400 common shares at $140 and $145 per share on January 5, 2026.

How many Vicor (VICR) stock options does Andrew D'Amico hold after these transactions?

After the reported option exercise, the Form 4 shows 600 non-qualified stock options beneficially owned by Andrew D'Amico.

Were the Vicor (VICR) insider stock sales by Andrew D'Amico pre-planned?

Yes. A footnote states that the sale was effected under a Rule 10b5-1 trading plan adopted by Andrew D'Amico on September 12, 2024.

What prices were reported for Andrew D'Amico’s Vicor (VICR) stock sales?

The Form 4 shows two sales of common stock, with 200 shares sold at $140 per share and 200 shares sold at $145 per share on January 5, 2026.

What role does Andrew D'Amico have at Vicor Corp (VICR)?

The filing identifies Andrew D'Amico as a director of Vicor Corp and not a 10% owner or officer.

What type of derivative security did Andrew D'Amico exercise at Vicor (VICR)?

He exercised a non-qualified stock option covering 400 shares of Vicor common stock with an exercise price of $100 per share.