Vicor (VICR) VP receives 4,547 stock options vesting over five years

Rhea-AI Filing Summary

Vicor Corp executive Philip D. Davies, VP Global Sales & Marketing, received a grant of 4,547 non-qualified stock options for Vicor common stock on May 5, 2026. The options have an exercise price of $266.005 per share, vest over a five-year period, and expire two years after each vesting date. Following the filing, he directly holds 1,920 shares of common stock in addition to this new option award.

Insider Trade Summary

2 transactions reported

Mixed 2 txns

Insider Davies Philip D

Role VP Global Sales & Marketing

Type	Security	Shares	Price	Value
Grant/Award	Non Qualified Stock Option	4,547	$0.00	--
holding	Common Stock	--	--	--

Holdings After Transaction: Non Qualified Stock Option — 4,547 shares (Direct, null); Common Stock — 1,920 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: 4,547 options Option exercise price: $266.005 per share Common shares held: 1,920 shares +2 more

5 metrics

Option grant size 4,547 options Non-qualified stock option grant on May 5, 2026

Option exercise price $266.005 per share Exercise price for newly granted options

Common shares held 1,920 shares Direct common stock ownership after reported transactions

Vesting period Five years Options vest over a five-year period

Option expiry 2 years post-vesting Options expire two years from each vesting date

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

"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^*

Davies Philip D

(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)
	VP Global Sales & Marketing

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								1,920	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		4,547		(1)	(2)	Common Stock	4,547	$0	4,547	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 Philip D. Davies	05/07/2026
	** 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 insider transaction did Vicor (VICR) report for Philip D. Davies?

Vicor reported a grant of 4,547 non-qualified stock options to Philip D. Davies. These options give him the right to buy Vicor common shares at a fixed price, functioning as equity-based compensation tied to the company’s future stock performance.

What is the exercise price of the new Vicor (VICR) stock options?

The granted non-qualified stock options have an exercise price of $266.005 per share. This means Davies can purchase Vicor common stock at $266.005 once options vest, regardless of the market price at that time, subject to the plan’s terms.

How do the new Vicor (VICR) options for Philip D. Davies vest?

The 4,547 stock options granted to Davies vest over a five-year period. This multi-year vesting schedule is designed to encourage longer-term alignment with Vicor’s performance, as portions of the award become exercisable gradually rather than immediately.

When do the granted Vicor (VICR) stock options expire?

The options expire two years from each date of vesting. For each portion that vests, Davies has a two-year window to exercise those specific options, after which they lapse if not exercised under the plan rules.

How many Vicor (VICR) shares does Philip D. Davies directly own after this filing?

After the reported transactions, Davies directly owns 1,920 shares of Vicor common stock. In addition, he holds a newly granted non-qualified stock option covering 4,547 underlying common shares, subject to the specified vesting and expiration terms.