Vicor (NASDAQ: VICR) grants 3,564 stock options to manufacturing GM

Rhea-AI Filing Summary

VICOR CORP director and General Manager of Manufacturing Operations Michael McNamara reported a new stock option award and his current shareholdings. He received 3,564 non-qualified stock options for common stock at an exercise price of $266.005 per share, granted under the company’s Amended and Restated 2000 Stock Option and Incentive Plan. According to the filing, these options vest over a five-year period and each vested portion expires two years from its vesting date. Following the reported transactions, McNamara directly holds 18,185 shares of common stock.

Insights

Equity compensation analyst

Routine equity grant awards stock options as compensation, not an open-market trade.

The filing shows Michael McNamara receiving 3,564 non-qualified stock options with a $266.005 exercise price, granted under Vicor’s Amended and Restated 2000 Stock Option and Incentive Plan. This is categorized as a grant or award acquisition rather than a market purchase.

The options vest over a five-year period, with each vested portion expiring two years after vesting, which encourages longer-term retention while limiting how long each tranche can be exercised. McNamara’s direct holding of 18,185 common shares after the transactions provides context but does not indicate any buying or selling in the market.

Insider Trade Summary

2 transactions reported

Mixed 2 txns

Insider McNamara Michael

Role General Manager Mfg. Ops.

Type	Security	Shares	Price	Value
Grant/Award	Non Qualified Stock Option	3,564	$0.00	--
holding	Common Stock	--	--	--

Holdings After Transaction: Non Qualified Stock Option — 3,564 shares (Direct, null); Common Stock — 18,185 shares (Direct, null)

Footnotes (1)

1. Granted under the Companys Amended and Restated 2000 Stock Option and Incentive Plan on May 5, 2026 and vest over a five year period. Options expire 2 years from each date of vesting.

Key Figures

Option grant size: 3,564 options Option exercise price: $266.005 per share Common shares held: 18,185 shares +1 more

4 metrics

Option grant size 3,564 options Non-qualified stock options granted on May 5, 2026

Option exercise price $266.005 per share Exercise price for 3,564 non-qualified stock options

Common shares held 18,185 shares Direct common stock holdings after reported transactions

Underlying shares 3,564 shares Common stock underlying the new non-qualified stock options

Key Terms

Non Qualified Stock Option, Amended and Restated 2000 Stock Option and Incentive Plan, vest over a five year period, Options expire 2 years from each date of vesting

4 terms

Non Qualified Stock Option financial

"security_title": "Non Qualified Stock Option""

Amended and Restated 2000 Stock Option and Incentive Plan financial

"Granted under the Companys Amended and Restated 2000 Stock Option and Incentive Plan"

vest over a five year period financial

"granted on May 5, 2026 and vest over a five year period"

Options expire 2 years from each date of vesting financial

"Options expire 2 years from each date of vesting."

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^*

McNamara Michael

(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)
	General Manager Mfg. Ops.

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/05/2026

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								18,185	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	$266.005	05/05/2026		A		3,564		(1)	(2)	Common Stock	3,564	$0	3,564	D

Explanation of Responses:

1. Granted under the Companys Amended and Restated 2000 Stock Option and Incentive Plan on May 5, 2026 and vest over a five year period.

2. Options expire 2 years from each date of vesting.

	/s/ Kemble D. Morrison. Attorney in fact for Michael McNamara	05/06/2026
	** 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 Michael McNamara report in his Form 4 for VICR?

Michael McNamara reported a grant of 3,564 non-qualified stock options for VICOR CORP common stock. The options were granted under the company’s Amended and Restated 2000 Stock Option and Incentive Plan and represent compensation rather than an open-market purchase or sale.

How many VICOR CORP shares does Michael McNamara hold after this Form 4?

After the reported transactions, Michael McNamara directly holds 18,185 shares of VICOR CORP common stock. This figure reflects his position following the new stock option grant and provides scale for his existing equity stake in the company.

What are the key terms of Michael McNamara’s new VICR stock options?

McNamara received 3,564 non-qualified stock options with a $266.005 exercise price, linked to VICOR CORP common stock. The options vest over five years, and each vested portion expires two years after its respective vesting date, shaping when they can be exercised.

Are Michael McNamara’s Form 4 transactions in VICR open-market trades?

The Form 4 classifies the main transaction as a grant or award acquisition of non-qualified stock options, not an open-market trade. The filing also includes a holding entry for common stock, with no coded open-market buying or selling activity reported.

Under which plan were Michael McNamara’s VICR options granted?

The options were granted under VICOR CORP’s Amended and Restated 2000 Stock Option and Incentive Plan. This plan provides the framework for equity awards such as McNamara’s 3,564 non-qualified stock options linked to the company’s common stock.