Vicor (VICR) director sells 754 shares under 10b5-1 trading plan

Rhea-AI Filing Summary

VICOR CORP director Andrew D'Amico reported an option exercise and share sale. He exercised options to acquire 754 shares of common stock at $53.07 per share and sold 754 shares at $330.00 per share in an open-market transaction.

Following these transactions, he reported no directly held common shares and 1,507 non-qualified stock options remaining, which are exercisable into common stock until June 23, 2033. The sale was executed under a pre-arranged Rule 10b5-1 trading plan adopted on September 12, 2024.

Insider Trade Summary 10b5-1

Net Seller: 754 shares ($248,820)

Net Sell 3 txns

Insider D'Amico Andrew

Role null

Sold 754 shs ($249K)

Type	Security	Shares	Price	Value
Exercise	Non Qualified Stock Option	754	$0.00	--
Exercise	Common Stock	754	$53.07	$40K
Sale	Common Stock	754	$330.00	$249K

Holdings After Transaction: Non Qualified Stock Option — 1,507 shares (Direct, null); Common Stock — 754 shares (Direct, null)

Footnotes (1)

1. [object Object]

Key Figures

Shares sold: 754 shares Sale price: $330.00/share Shares exercised: 754 shares +3 more

6 metrics

Shares sold 754 shares Common stock sold at $330.00 on June 23, 2026

Sale price $330.00/share Open-market sale of common stock

Shares exercised 754 shares Common stock acquired via option exercise at $53.07

Option exercise price $53.07/share Non-qualified stock option conversion price

Options remaining 1,507 options Non-qualified stock options outstanding after transactions

Option expiration June 23, 2033 Expiration date of non-qualified stock options

Key Terms

Rule 10b5-1 trading plan, Non Qualified Stock Option, derivative security, open-market sale

4 terms

Rule 10b5-1 trading plan regulatory

"This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person"

A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.

Non Qualified Stock Option financial

"security_title: "Non Qualified Stock Option" with an expiration date of 2033-06-23"

derivative security financial

"transaction_code_description: "Exercise or conversion of derivative security""

A derivative security is a financial contract whose value comes from the price or performance of something else, such as a stock, bond, commodity, or market index. For investors it acts like an insurance policy or a wager: it can be used to protect against losses, lock in prices, or amplify gains and losses, so it can change a portfolio’s risk and potential return without owning the underlying asset directly.

open-market sale financial

"transaction_action: "open-market sale" at $330.0000 per share"

An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 06/24/2026 - 01:41 PM Accepted by SEC EDGAR 06/24/2026 - 01:41 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).

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 MASSACHUSETTS 01810

(City) (State) (Zip)

UNITED STATES

(Country)

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)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/23/2026

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

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

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

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	06/23/2026		M		754	A	$53.07	754	D
Common Stock	06/23/2026		S(1)		754	D	$330	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	$53.07	06/23/2026		M			754	06/23/2026	06/23/2033	Common Stock	754	$0	1,507	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	06/24/2026
	** 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.
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.
* Form 4: SEC 1474 (03-26)

FAQ

What insider transactions did VICOR (VICR) director Andrew D'Amico report?

Andrew D'Amico reported exercising options for 754 VICOR shares at $53.07 each and selling 754 common shares at $330.00 per share. These transactions occurred on June 23, 2026 and involved common stock and non-qualified stock options.

How many VICOR (VICR) shares did Andrew D'Amico sell and at what price?

He sold 754 VICOR common shares at an average price of $330.00 per share. The sale was reported as an open-market transaction and was executed under a Rule 10b5-1 trading plan adopted on September 12, 2024 by the reporting person.

What options did Andrew D'Amico exercise in his VICOR (VICR) Form 4 filing?

He exercised non-qualified stock options covering 754 VICOR common shares at a conversion or exercise price of $53.07 per share. After this exercise, 1,507 non-qualified stock options remained outstanding, with an expiration date of June 23, 2033, held directly.

Does Andrew D'Amico still hold VICOR (VICR) common stock after these transactions?

Following the reported transactions, he reported holding 0 shares of VICOR common stock directly. However, he continued to hold 1,507 non-qualified stock options, each exercisable into common stock, with those options currently set to expire on June 23, 2033.

Were Andrew D'Amico's VICOR (VICR) share sales made under a Rule 10b5-1 plan?

Yes. The filing states the sale was effected pursuant to a Rule 10b5-1 trading plan adopted on September 12, 2024. Such plans pre-schedule trades, indicating the timing of this $330.00-per-share sale was established in advance by the reporting person.