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 ROAD (Street) ANDOVER MA 01810 (City) (State) (Zip)	2. Issuer Name and Ticker or Trading Symbol VICOR CORP [ VICR ] Foreign Trading Symbol	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) Director 10% Owner Officer (give title below) Other (specify below) Corp. VP-Global Sales & Mktg.
	3. Date of Earliest Transaction (Month/Day/Year) 08/03/2026
	4. If Amendment, Date of Original Filed (Month/Day/Year)	6. Individual or Joint/Group Filing (Check Applicable Line) Form filed by One Reporting Person Form filed by More than One Reporting Person

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	08/03/2026		M		3,072	A	$41.61	4,992	D
Common Stock	08/03/2026		S(3)		200	D	$200.055(4)	4,792	D
Common Stock	08/03/2026		S(3)		100	D	$201.62(5)	4,692	D
Common Stock	08/03/2026		S(3)		100	D	$203.91(6)	4,592	D
Common Stock	08/03/2026		S(3)		200	D	$206.42(7)	4,392	D
Common Stock	08/03/2026		S(3)		100	D	$209.42(8)	4,292	D
Common Stock	08/03/2026		S(3)		500	D	$212.536(9)	3,792	D
Common Stock	08/03/2026		S(3)		1,372	D	$214.0194(10)	2,420	D
Common Stock	08/03/2026		S(3)		400	D	$215.0275(11)	2,020	D
Common Stock	08/03/2026		S(3)		100	D	$216.04(12)	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	$41.61	08/03/2026		M			3,072	(1)	(2)	Common Stock	3,072	$0	11,607	D

Explanation of Responses:

1. Granted under the Company's Amended and Restated 2000 Stock Option and Incentive Plan on May 2, 2023 and vest over a five year period.

2. Options expire two years from each vest date.

3. This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 21, 2025.

4. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $200.0500 to $200.0600.

5. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $201.6200 to $201.6200.

6. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $203.9100 to $203.9100.

7. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $206.0600 to $206.7800.

8. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $209.4200 to $209.4200.

9. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $212.1800 to $212.9900.

10. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $213.5200 to $214.5000.

11. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $214.8500 to $215.1500.

12. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $216.0400 to $216.0400.

	/s/Quentin A. Fendelet Attorney in Fact for Philip D. Davies	08/05/2026
	** 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).
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