Vicor Corp (VICR) director exercises 800 options, then sells 800 shares

Rhea-AI Filing Summary

Vicor Corp director Andrew D'Amico reported an option exercise and share sale. He exercised 800 Non Qualified Stock Options at an exercise price of $50.0000 per share into 800 shares of Common Stock. The same day, he executed open-market sales totaling 800 Common Stock shares at weighted average prices of $315.3033 and $316.1700 per share, in multiple transactions within narrow price ranges. Following these sales, his reported directly owned Common Stock position was reduced to zero shares.

Insights

Insider trading analyst

Director exercised 800 options at $50, then sold all 800 shares.

Director Andrew D'Amico exercised 800 Non Qualified Stock Options with a $50.0000 exercise price, receiving 800 Common Stock shares. On the same date, he sold 800 shares in open-market transactions at weighted average prices around $315 per share.

The filing shows no remaining derivative positions in the derivative summary, and the sales reduced his reported direct Common Stock holdings to zero. This pattern is consistent with an exercise-and-sell for liquidity, but the economic or strategic motivation is not discussed in the document.

Insider Trade Summary

Net Seller: 800 shares ($252,277)

Net Sell 4 txns

Insider D'Amico Andrew

Role null

Sold 800 shs ($252K)

Type	Security	Shares	Price	Value
Exercise	Non Qualified Stock Option	800	$0.00	--
Exercise	Common Stock	800	$50.00	$40K
Sale	Common Stock	760	$315.3033	$240K
Sale	Common Stock	40	$316.17	$13K

Holdings After Transaction: Non Qualified Stock Option — 10,520 shares (Direct, null); Common Stock — 800 shares (Direct, null)

Footnotes (1)

1. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $315.0000 to $315.7800. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $316.1700 to $316.1700. Options granted on 5/2/2025 and vest over five years. Options expire two years from each vest date.

Key Figures

Shares sold: 800 shares Weighted average sale price (760 shares): $315.3033 per share Weighted average sale price (40 shares): $316.1700 per share +3 more

6 metrics

Shares sold 800 shares Common Stock sold on May 14, 2026

Weighted average sale price (760 shares) $315.3033 per share Open-market sale of 760 shares

Weighted average sale price (40 shares) $316.1700 per share Open-market sale of 40 shares

Options exercised 800 options Non Qualified Stock Options converted to Common Stock

Option exercise price $50.0000 per share Non Qualified Stock Option exercise price

Post-transaction common shares 0 shares Direct Common Stock holdings after sales

Key Terms

Non Qualified Stock Option, weighted average price, Exercise or conversion of derivative security, Sale in open market or private transaction, +1 more

5 terms

Non Qualified Stock Option financial

"security_title: "Non Qualified Stock Option""

weighted average price financial

"The price reported in Column 4 is a weighted average price."

Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.

Exercise or conversion of derivative security financial

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

Sale in open market or private transaction financial

"transaction_code_description: "Sale in open market or private transaction""

derivative security financial

"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.

Form 4 Insider Transactions: What Each Field Means →

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^*

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)
05/14/2026

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	05/14/2026		M		800	A	$50	800	D
Common Stock	05/14/2026		S		760	D	$315.3033(1)	40	D
Common Stock	05/14/2026		S		40	D	$316.17(2)	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	$50	05/14/2026		M			800	(3)	(4)	Common Stock	800	$0	10,520	D

Explanation of Responses:

1. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $315.0000 to $315.7800.

2. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $316.1700 to $316.1700.

3. Options granted on 5/2/2025 and vest over five years.

4. Options expire two years from each vest date.

	/s/Kemble D. Morrison Attorney in fact for Andrew D'Amico	05/15/2026
	** 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 (VICR) director Andrew D'Amico report in this Form 4?

Andrew D'Amico reported exercising 800 Non Qualified Stock Options at $50.0000 per share, then selling 800 Common Stock shares in open-market transactions at weighted average prices slightly above $315 per share on May 14, 2026.

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

He sold 800 Common Stock shares in total. One block of 760 shares had a weighted average price of $315.3033, and another 40-share block had a weighted average price of $316.1700, both executed in multiple transactions that day.

What options did Andrew D'Amico exercise in the Vicor (VICR) Form 4?

He exercised 800 Non Qualified Stock Options with an exercise price of $50.0000 per share into 800 Common Stock shares. Footnotes state these options were granted on May 2, 2025 and vest over five years, expiring two years from each vest date.

What are Andrew D'Amico’s Vicor (VICR) holdings after these transactions?

After the reported transactions, his directly owned Common Stock position is shown as zero shares. The derivative summary in the data excerpt is empty, indicating no additional unexercised derivative positions are listed in this particular filing snapshot.

Were Andrew D'Amico’s Vicor (VICR) share sales made on the open market?

Yes. Both sales are coded “S” with the description “Sale in open market or private transaction,” and the filing describes the reported prices as weighted averages across multiple trades within disclosed price ranges around $315 per share.