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[Form 4] VICOR CORP Insider Trading Activity

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

Rhea-AI Filing Summary

Vicor Corp Chairman and CEO Patrizio Vinciarelli exercised stock options to acquire additional common shares. On 2026-04-14, he exercised non qualified stock options for 3,455 shares at an exercise price of $41.61 per share and 1,372 shares at $60.61 per share, converting them into common stock.

Following these exercises, his direct common stock holdings increased to 8,945,090 shares. The filing also shows an additional 171,125 common shares held indirectly through the Patrizio Vinciarelli Irrevocable Trust established for the benefit of his child, where he is Trustee.

Positive

  • None.

Negative

  • None.
Insider VINCIARELLI PATRIZIO
Role Chairman and CEO
Type Security Shares Price Value
Exercise Non Qualified Stock Option 3,455 $0.00 --
Exercise Non Qualified Stock Option 1,372 $0.00 --
Exercise Common Stock 3,455 $41.61 $144K
Exercise Common Stock 1,372 $60.61 $83K
holding Common Stock -- -- --
Holdings After Transaction: Non Qualified Stock Option — 13,818 shares (Direct); Common Stock — 8,943,718 shares (Direct); Common Stock — 171,125 shares (Indirect, See footnote)
Footnotes (1)
  1. These shares are held by the reporting person as Trustee of the Patrizio Vinciarelli Irrevocable Trust U/A Dated 12/21/2012, established for the benefit of the child of the reporting person. Options granted on 5/2/2023, vest over five years and expire two years from each vesting date. Options granted on 4/25/2022, vest over five years and expire two years from each vesting date.
Options exercised at $41.61 3,455 shares Non qualified stock option exercise on 2026-04-14 at $41.61
Options exercised at $60.61 1,372 shares Non qualified stock option exercise on 2026-04-14 at $60.61
Total shares from exercises 4,827 shares Exercise or conversion of derivative securities reported in transactionSummary
Direct common shares after transactions 8,945,090 shares Total direct Vicor common stock holdings following transactions
Indirect trust holdings 171,125 shares Common stock held via Patrizio Vinciarelli Irrevocable Trust U/A 12/21/2012
Derivative exercises count 2 transactions Exercise or conversion of derivative securities in transactionSummary
Non Qualified Stock Option financial
"security_title: "Non Qualified Stock Option" for derivative transactions"
derivative exercise/conversion financial
"transaction_action: "derivative exercise/conversion" describing option exercises"
indirect ownership financial
"ownership_type: "indirect" and nature_of_ownership: "See footnote""
Irrevocable Trust financial
"Patrizio Vinciarelli Irrevocable Trust U/A Dated 12/21/2012"
exercise price financial
"conversion_or_exercise_price values of 41.6100 and 60.6100"
The exercise price is the fixed amount at which you can buy or sell an asset, like a stock, when using an options contract. It matters because it helps determine whether exercising the option will be profitable or not, depending on the current market price. Think of it as the set price you agree on today to buy or sell later.
Form 4 Insider Transactions: What Each Field Means →
SEC Form 4
FORM 4UNITED 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*
VINCIARELLI PATRIZIO
(Last)(First)(Middle)
C/O VICOR CORPORATION
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)
XDirectorX10% Owner
XOfficer (give title below)Other (specify below)
Chairman and CEO
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
04/14/2026		6. Individual or Joint/Group Filing (Check Applicable Line)
XForm 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)
CodeVAmount(A) or (D)Price
Common Stock171,125ISee footnote(1)
Common Stock04/14/2026M3,455A$41.618,943,718D
Common Stock04/14/2026M1,372A$60.618,945,090D
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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Non Qualified Stock Option$41.6104/14/2026M3,45505/02/2024(2)05/02/2026Common Stock3,455$013,818D
Non Qualified Stock Option$60.6104/14/2026M1,37204/25/2024(3)04/25/2026Common Stock1,372$04,113D
Explanation of Responses:
1. These shares are held by the reporting person as Trustee of the Patrizio Vinciarelli Irrevocable Trust U/A Dated 12/21/2012, established for the benefit of the child of the reporting person.
2. Options granted on 5/2/2023, vest over five years and expire two years from each vesting date.
3. Options granted on 4/25/2022, vest over five years and expire two years from each vesting date.
/s/Quentin A. Fendelet. Attorney in fact for Patrizio Vinciarelli04/15/2026
** Signature of Reporting PersonDate
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)

Source: View Original Filing on SEC EDGAR