Vicor Corp (VICR) director converts options into 5,987 common shares

Rhea-AI Filing Summary

VICOR CORP director Estia J. Eichten reported exercising four tranches of non-qualified stock options on July 24, 2026. She converted a total of 5,987 options into an equal number of common shares at exercise prices of $19.35, $31.05, $47.15, and $68.48 per share, with no share sales disclosed.

Insider Trade Summary

Net Buyer: 5,987 shares

Net Buy 8 txns

Insider EICHTEN ESTIA J

Role Director

Type	Security	Shares	Price	Value
Exercise	Non Qualified Stock Option F1	2,584	$0.00	$0.00
Exercise	Non Qualified Stock Option F2	731	$0.00	$0.00
Exercise	Non Qualified Stock Option F3	1,611	$0.00	$0.00
Exercise	Non Qualified Stock Option F4	1,061	$0.00	$0.00
Exercise	Common Stock	2,584	$19.35	$50K
Exercise	Common Stock	731	$68.48	$50K
Exercise	Common Stock	1,611	$31.05	$50K
Exercise	Common Stock	1,061	$47.15	$50K

Holdings After Transaction: Non Qualified Stock Option — 0 shares (Direct); Common Stock — 104,825 shares (Direct)

Footnotes (4)

1. F1. Granted under the Company's Amended and Restated 2000 Stock Option and Incentive Plan on June 16, 2017 and vest over a five year period.
2. F2. Granted under the Company's Amended and Restated 2000 Stock Option and Incentive Plan on June 26, 2020 and vest over a five year period.
3. F3. Granted under the Company's Amended and Restated 2000 Stock Option and Incentive Plan on June 28, 2019 and vest over a five year period.
4. F4. Granted under the Company's Amended and Restated 2000 Stock Option and Incentive Plan on June 15, 2018 and vest over a five year period.

Key Figures

Total options exercised: 5,987 shares First tranche exercised: 2,584 shares Second tranche exercised: 1,611 shares +2 more

5 metrics

Total options exercised 5,987 shares Aggregate non-qualified stock options exercised on July 24, 2026

First tranche exercised 2,584 shares Non Qualified Stock Option at $19.3500 per share, granted June 16, 2017

Second tranche exercised 1,611 shares Non Qualified Stock Option at $31.0500 per share, granted June 28, 2019

Third tranche exercised 1,061 shares Non Qualified Stock Option at $47.1500 per share, granted June 15, 2018

Fourth tranche exercised 731 shares Non Qualified Stock Option at $68.4800 per share, granted June 26, 2020

Key Terms

Non Qualified Stock Option, Amended and Restated 2000 Stock Option and Incentive Plan, Exercise or conversion of derivative security

3 terms

Non Qualified Stock Option financial

"Security title listed as Non Qualified Stock Option for multiple derivative entries."

Amended and Restated 2000 Stock Option and Incentive Plan financial

"Footnotes state options were granted under the Amended and Restated 2000 Stock Option and Incentive Plan."

Exercise or conversion of derivative security financial

"Transaction code M is described as Exercise or conversion of derivative security."

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 07/28/2026 - 11:42 AM Accepted by SEC EDGAR 07/28/2026 - 11:42 AM Learn about SEC filing dates

FAQ

What insider transaction did Vicor (VICR) director Estia J. Eichten report?

Vicor director Estia J. Eichten reported exercising stock options on July 24, 2026. She converted 5,987 non-qualified stock options into the same number of common shares through four separate exercises at stated per-share exercise prices, with no share sales reported.

How many Vicor (VICR) stock options did Estia J. Eichten exercise?

Estia J. Eichten exercised a total of 5,987 stock options. These were split into four tranches of 2,584, 1,611, 1,061, and 731 options, each converting into an equal number of Vicor common shares on July 24, 2026.

At what exercise prices were the Vicor (VICR) options exercised by the director?

The options were exercised at per-share prices of $19.35, $31.05, $47.15, and $68.48. Each set of non-qualified stock options converted into an equal number of Vicor common shares at its respective exercise price on July 24, 2026.

Were any Vicor (VICR) shares sold in connection with Estia J. Eichten’s option exercises?

The filing shows no share sales in connection with these transactions. It reports only option exercises that converted derivative positions into common stock, with no sales or tax-withholding dispositions (such as code F transactions) listed for July 24, 2026.

Under which plan were the Vicor (VICR) options granted to Estia J. Eichten?

The options were granted under Vicor’s Amended and Restated 2000 Stock Option and Incentive Plan. Footnotes state these awards were granted between 2017 and 2020 and vest over a five-year period before ultimately being exercised into common shares.

What types of securities are involved in Estia J. Eichten’s Vicor (VICR) Form 4?

The Form 4 involves Non Qualified Stock Options as derivative securities and Common Stock as the underlying security. Each option transaction (code M) corresponds to an exercise that disposes of options and acquires an equal number of Vicor common shares.

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^*

EICHTEN ESTIA J

(Last) (First) (Middle)

25 FRONTAGE ROAD

(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)
07/24/2026

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	07/24/2026		M		2,584	A	$19.35	101,422	D
Common Stock	07/24/2026		M		731	A	$68.48	102,153	D
Common Stock	07/24/2026		M		1,611	A	$31.05	103,764	D
Common Stock	07/24/2026		M		1,061	A	$47.15	104,825	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	$19.35	07/24/2026		M			2,584	(1)	06/16/2027	Common Stock	2,584	$0	0	D
Non Qualified Stock Option	$68.48	07/24/2026		M			731	(2)	06/26/2030	Common Stock	731	$0	0	D
Non Qualified Stock Option	$31.05	07/24/2026		M			1,611	(3)	06/28/2029	Common Stock	1,611	$0	0	D
Non Qualified Stock Option	$47.15	07/24/2026		M			1,061	(4)	06/15/2028	Common Stock	1,061	$0	0	D

Explanation of Responses:

1. Granted under the Company's Amended and Restated 2000 Stock Option and Incentive Plan on June 16, 2017 and vest over a five year period.

2. Granted under the Company's Amended and Restated 2000 Stock Option and Incentive Plan on June 26, 2020 and vest over a five year period.

3. Granted under the Company's Amended and Restated 2000 Stock Option and Incentive Plan on June 28, 2019 and vest over a five year period.

4. Granted under the Company's Amended and Restated 2000 Stock Option and Incentive Plan on June 15, 2018 and vest over a five year period.

	/s/Kemble Morrison Attorney in Fact for Estia Eichten	07/28/2026
	** 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)