Quentin A. Fendelet - 23 Oct 2025 Form 4 Insider Report for VICOR CORP (VICR)

Role
Corp. VP - CAO
Signature
/s/Quentin A. Fendelet
Issuer symbol
VICR
Transactions as of
23 Oct 2025
Transactions value $
-$619,489
Form type
4
Filing time
27 Oct 2025, 14:26:05 UTC
Previous filing
05 May 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Fendelet Quentin A. Corp. VP - CAO 25 FRONTAGE RD., ANDOVER /s/Quentin A. Fendelet 27 Oct 2025 0001912196

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction VICR Common Stock Sale -$12.9K -153 -100% $84.36 0 23 Oct 2025 Direct
transaction VICR Common Stock Options Exercise $169K +4.96K $33.96 4.96K 23 Oct 2025 Direct
transaction VICR Common Stock Sale -$438K -4.96K -100% $88.34 0 23 Oct 2025 Direct
transaction VICR Common Stock Options Exercise $55.5K +915 $60.61 915 23 Oct 2025 Direct
transaction VICR Common Stock Sale -$80.8K -915 -100% $88.34 0 23 Oct 2025 Direct
transaction VICR Common Stock Options Exercise $188K +4.53K $41.61 4.53K 23 Oct 2025 Direct
transaction VICR Common Stock Sale -$400K -4.53K -100% $88.34 0 23 Oct 2025 Direct
transaction VICR Common Stock Options Exercise $430K +6K $71.74 6K 23 Oct 2025 Direct
transaction VICR Common Stock Sale -$530K -6K -100% $88.34 0 23 Oct 2025 Direct

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction VICR Non Qualified Stock Option Options Exercise $0 -4.96K -20% $0.00 19.9K 23 Oct 2025 Common Stock 4.96K $33.96 Direct F1
transaction VICR Non Qualified Stock Option Options Exercise $0 -915 -50.03% $0.00 914 23 Oct 2025 Common Stock 915 $60.61 Direct F1
transaction VICR Non Qualified Stock Option Options Exercise $0 -4.53K -40% $0.00 6.79K 23 Oct 2025 Common Stock 4.53K $41.61 Direct F1
transaction VICR Non Qualified Stock Option Options Exercise $0 -6K -60% $0.00 4K 23 Oct 2025 Common Stock 6K $71.74 Direct
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Options expire 2 years from each vesting date.