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  4. [Form 4] VICOR CORP Insider Trading Activity

VICR insider sells shares after option exercises at $69.04/$41.61

Filing Impact
(Moderate)
Filing Sentiment
(Negative)
Form Type
4

Rhea-AI Filing Summary

Vicor (VICR) director Andrew D’Amico reported option exercises and same‑day sales on 10/24/2025. He exercised non‑qualified stock options at $69.04 for 577 shares twice and at $41.61 for 917 shares, then sold matching amounts at prices of $94.07, $96.00, and $94.50. The transactions were made under a Rule 10b5‑1 trading plan adopted on September 12, 2024.

Following these transactions, derivative holdings reported include options with an exercise price of $69.04 covering 1,154 shares (expiring 06/24/2030) and options with an exercise price of $41.61 with 8,748 derivative securities beneficially owned following the reported activity. Note states options expire 2 years from each vesting date.

Positive

  • None.

Negative

  • None.
Insider D'Amico Andrew
Role Director
Sold 2,071 shs ($196K)
Type Security Shares Price Value
Exercise Non Qualified Stock Option 1,154 $0.00 --
Exercise Non Qualified Stock Option 917 $0.00 --
Exercise Common Stock 577 $69.04 $40K
Sale Common Stock 577 $94.07 $54K
Exercise Common Stock 577 $69.04 $40K
Sale Common Stock 577 $96.00 $55K
Exercise Common Stock 917 $41.61 $38K
Sale Common Stock 917 $94.50 $87K
Holdings After Transaction: Non Qualified Stock Option — 1,154 shares (Direct); Common Stock — 577 shares (Direct)
Footnotes (1)
  1. This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 12, 2024. Options expire 2 years from each vesting date.
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).
X
 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*
D'Amico Andrew
(Last) (First) (Middle)
25 FRONTAGE RD.
(Street)
ANDOVER MA 01810
(City) (State) (Zip)
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)
3. Date of Earliest Transaction (Month/Day/Year)
10/24/2025
4. If Amendment, Date of Original Filed (Month/Day/Year)
 6. Individual or Joint/Group Filing (Check Applicable Line)
X 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 10/24/2025 M 577 A $69.04 577 D
Common Stock 10/24/2025 S(1) 577 D $94.07 0 D
Common Stock 10/24/2025 M 577 A $69.04 577 D
Common Stock 10/24/2025 S(1) 577 D $96 0 D
Common Stock 10/24/2025 M 917 A $41.61 917 D
Common Stock 10/24/2025 S(1) 917 D $94.5 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)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Non Qualified Stock Option $69.04 10/24/2025 M 1,154 06/24/2025 06/24/2030 Common Stock 1,154 $0 1,154 D
Non Qualified Stock Option $41.61 10/24/2025 M 917 05/02/2025 (2) Common Stock 917 $0 8,748 D
Explanation of Responses:
1. This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on September 12, 2024.
2. Options expire 2 years from each vesting date.
/s/Quentin A. Fendelet Attorney in Fact for Andrew D'Amico 10/28/2025
** 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.

Source: View Original Filing on SEC EDGAR

FAQ

What insider activity did VICR’s director report?

On 10/24/2025, Andrew D’Amico exercised options (577, 577, and 917 shares) and sold the same amounts at $94.07, $96.00, and $94.50.

Was the VICR insider trade under a 10b5-1 plan?

Yes. The filing states sales were made under a Rule 10b5‑1 plan adopted on September 12, 2024.

What option exercise prices were used by the VICR director?

Exercises were at $69.04 (two lots of 577 shares) and $41.61 (917 shares).

What sale prices were disclosed for the VICR shares?

Reported sales occurred at $94.07, $96.00, and $94.50.

What derivative securities remain following the transactions?

Reported remaining include options at $69.04 covering 1,154 shares (expire 06/24/2030) and options at $41.61 with 8,748 derivative securities beneficially owned following.

What is the insider’s relationship to Vicor (VICR)?

The reporting person is a Director of Vicor Corporation.

How do the option expirations work per the filing note?

The filing notes that options expire 2 years from each vesting date.