Vicor (VICR) director exercises stock options, sells 531 pre-planned shares

Rhea-AI Filing Summary

VICOR CORP director Andrew D'Amico reported an exercise-and-sell sequence involving 531 shares of common stock. On June 25, 2026, he exercised non-qualified stock options for 200 shares at a $100.00 exercise price and sold the same 200 shares in open-market transactions at $336.82 per share, leaving 0 shares of common stock from that block.

On June 26, 2026, he exercised additional options for 331 shares at a $60.37 exercise price and sold those 331 shares at $319.53 per share. Following these sales, his directly held common stock position reported in this filing was 0 shares. The footnotes state that the sales were effected pursuant to a Rule 10b5-1 trading plan adopted on September 12, 2024, indicating the transactions were pre-planned.

Insights

Equity compensation and insider-trading analyst

Director executes pre-planned option exercises and routine net sale of 531 VICOR shares.

Director Andrew D'Amico exercised non-qualified stock options for a total of 531 shares of VICOR CORP common stock at exercise prices of $100.00 and $60.37. He then sold the same number of shares in open-market trades at markedly higher prices of $336.82 and $319.53 per share.

The filing shows net-sell activity of 531 shares and a reported direct common stock balance of 0 shares afterward. A footnote explains that the sales were made under a Rule 10b5-1 trading plan adopted on September 12, 2024, suggesting these were scheduled liquidity events rather than opportunistic trades. Overall, this appears to be routine monetization of option-based compensation rather than a thesis-changing signal.

Insider Trade Summary 10b5-1

Net Seller: 531 shares ($173,128)

Net Sell 6 txns

Insider D'Amico Andrew

Role null

Sold 531 shs ($173K)

Type	Security	Shares	Price	Value
Exercise	Non Qualified Stock Option	331	$0.00	--
Exercise	Common Stock	331	$60.37	$20K
Sale	Common Stock	331	$319.53	$106K
Exercise	Non Qualified Stock Option	200	$0.00	--
Exercise	Common Stock	200	$100.00	$20K
Sale	Common Stock	200	$336.82	$67K

Holdings After Transaction: Non Qualified Stock Option — 331 shares (Direct, null); Common Stock — 331 shares (Direct, null)

Footnotes (1)

1. [object Object]

Key Figures

Shares sold June 25, 2026: 200 shares at $336.82 Shares sold June 26, 2026: 331 shares at $319.53 Option exercise price block 1: $100.00 per share +4 more

7 metrics

Shares sold June 25, 2026 200 shares at $336.82 Open-market sale of common stock

Shares sold June 26, 2026 331 shares at $319.53 Open-market sale of common stock

Option exercise price block 1 $100.00 per share Non-qualified stock option for 200 shares

Option exercise price block 2 $60.37 per share Non-qualified stock option for 331 shares

Total shares sold 531 shares Net-sell activity across both days

Shares held after transactions 0 shares common stock Direct holdings following June 2026 trades

Rule 10b5-1 plan adoption date September 12, 2024 Plan governing the reported sales

Key Terms

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

4 terms

Rule 10b5-1 trading plan regulatory

"Sales were effected pursuant to a Rule 10b5-1 trading plan adopted on September 12, 2024."

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 is listed as Non Qualified Stock Option with underlying common shares."

open-market sale financial

"Transaction code S is described as an open-market sale of common stock."

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.

derivative exercise/conversion financial

"Transaction code M is labeled as a derivative exercise/conversion of options into common stock."

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 06/29/2026 - 11:08 AM Accepted by SEC EDGAR 06/29/2026 - 11:08 AM 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)
06/25/2026

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	06/25/2026		M		200	A	$100	200	D
Common Stock	06/25/2026		S(1)		200	D	$336.82	0	D
Common Stock	06/26/2026		M		331	A	$60.37	331	D
Common Stock	06/26/2026		S(1)		331	D	$319.53	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	06/25/2026		M			200	06/25/2026	06/25/2031	Common Stock	200	$0	0	D
Non Qualified Stock Option	$60.37	06/26/2026		M			331	06/24/2026	06/24/2032	Common Stock	331	$0	331	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	06/29/2026
	** 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 did VICOR CORP director Andrew D'Amico report in this Form 4 for VICR?

Director Andrew D'Amico reported exercising options for 531 VICOR CORP shares and selling the same 531 common shares in open-market transactions. The filing shows his reported direct common stock holdings were reduced to zero after these June 25–26, 2026 transactions.

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

Andrew D'Amico sold 531 VICOR CORP common shares in total. He sold 200 shares at $336.82 per share on June 25, 2026, and 331 shares at $319.53 per share on June 26, 2026, according to the Form 4 data.

What option exercise prices were disclosed for Andrew D'Amico’s VICR transactions?

The Form 4 shows Andrew D'Amico exercised non-qualified stock options for 200 VICOR CORP shares at a $100.00 exercise price and 331 shares at a $60.37 exercise price. These exercises immediately preceded corresponding open-market sales of the acquired common stock.

Were Andrew D'Amico’s VICOR CORP share sales under a Rule 10b5-1 plan?

Yes. A footnote states the sales were effected pursuant to a Rule 10b5-1 trading plan adopted on September 12, 2024. Such plans pre-schedule trades, indicating these VICR sales were arranged in advance rather than timed discretionarily.

What is Andrew D'Amico’s reported VICOR CORP common stock holding after these VICR trades?

After the reported June 25–26, 2026 transactions, the Form 4 lists Andrew D'Amico’s direct holdings of VICOR CORP common stock as zero shares. The filing does not show additional remaining common shares in his direct position following these sales.

What types of securities are involved in Andrew D'Amico’s VICR Form 4 filing?

The Form 4 covers VICOR CORP common stock and related non-qualified stock options. D'Amico exercised options into common shares and then sold those shares in open-market transactions, combining derivative exercises with immediate dispositions of the underlying stock.