What is the net share impact of the VICOR (VICR) Form 4 transactions?

The Form 4 shows a net disposition of 1,241 shares of VICOR common stock. While Schmidt acquired 1,241 shares through option exercise, he sold 1,241 shares in the open market, with the transaction summary indicating netBuySellShares of -1,241, or a net-sell direction.

VICOR (VICR) CFO Schmidt exercises options, sells 1,241 shares in 10b5-1 trade

Filing Impact

(Neutral)

Filing Sentiment

(Neutral)

Form Type

Rhea-AI Filing Summary

VICOR CORP director and CFO James F. Schmidt executed an option-related share sale. On April 27, 2026, he sold 1,241 shares of common stock in an open-market transaction at $277.00 per share, fully disposing of this reported common stock position.

On the same date, he exercised non-qualified stock options to acquire 1,241 shares of common stock at an exercise price of $60.61 per share. The filing’s transaction summary shows a net disposition of 1,241 shares, reflecting an exercise-and-sell pattern.

The sale was carried out under a Rule 10b5-1 trading plan adopted by Schmidt on December 10, 2025, indicating the trades were pre-arranged rather than opportunistic.

Insider Trade Summary 10b5-1

Net Seller: 1,241 shares ($343,757)

Net Sell 3 txns

Insider Schmidt James F

Role CFO, Treasurer, Secretary

Sold 1,241 shs ($344K)

Type	Security	Shares	Price	Value
Exercise	Non Qualified Stock Option	1,241	$0.00	--
Exercise	Common Stock	1,241	$60.61	$75K
Sale	Common Stock	1,241	$277.00	$344K

Holdings After Transaction: Non Qualified Stock Option — 1,240 shares (Direct, null); Common Stock — 1,241 shares (Direct, null)

Footnotes (1)

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Key Figures

Shares sold: 1,241 shares Sale price: $277.00 per share Shares exercised: 1,241 shares +4 more

7 metrics

Shares sold 1,241 shares Open-market sale of common stock on April 27, 2026 at $277.00

Sale price $277.00 per share Price for 1,241 VICOR common shares sold in open market

Shares exercised 1,241 shares Common stock obtained via option exercise on April 27, 2026

Option exercise price $60.61 per share Exercise price of non-qualified stock options converted into common stock

Net share change -1,241 shares transactionSummary netBuySellShares indicating net-sell direction

Option expiration April 25, 2028 Expiration date of non-qualified stock option position referenced in Form 4

10b5-1 plan adoption date December 10, 2025 Date CFO adopted Rule 10b5-1 trading plan governing the sale

Key Terms

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

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 underlying common stock shares"

open-market sale financial

"transaction_action: "open-market sale" for 1,241 shares 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 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.

Form 4 Insider Transactions: What Each Field Means →

04/28/2026 - 03:10 PM

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^*

Schmidt James F

(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
X	Officer (give title below)	Other (specify below)
	CFO, Treasurer, Secretary

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
04/27/2026

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	04/27/2026		M		1,241	A	$60.61	1,241	D
Common Stock	04/27/2026		S⁽¹⁾		1,241	D	$277	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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Non Qualified Stock Option	$60.61	04/27/2026		M			1,241	04/25/2026	04/25/2028	Common Stock	1,241	$0	1,240	D

Explanation of Responses:

1. This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 10, 2025.

	/s/Kemble D. Morrison Attorney in fact for James F. Schmidt	04/28/2026
	** 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)

Source: View Original Filing on SEC EDGAR

FAQ

What insider transaction did VICOR (VICR) report for James F. Schmidt?

VICOR reported that CFO and director James F. Schmidt sold 1,241 shares of common stock in an open-market transaction at $277.00 per share. The filing also shows he exercised options for 1,241 shares at a $60.61 exercise price on the same date.

Was the April 27, 2026 VICOR (VICR) insider sale pre-planned?

Yes. The sale of 1,241 VICOR shares on April 27, 2026 was executed under a Rule 10b5-1 trading plan. The filing states Schmidt adopted this trading plan on December 10, 2025, indicating the transaction was scheduled in advance rather than timed discretionarily.

How many VICOR (VICR) shares did James F. Schmidt sell and at what price?

James F. Schmidt sold 1,241 shares of VICOR common stock at $277.00 per share. This open-market transaction occurred on April 27, 2026 and represented the full amount of common stock reported as held directly following the sale.

What stock options did the VICOR (VICR) CFO exercise in this Form 4?

The VICOR CFO exercised non-qualified stock options covering 1,241 underlying shares of common stock at a $60.61 exercise price. These derivative securities had an expiration date of April 25, 2028, and were converted into common shares as part of the reported transactions.