Samuel J. Anderson - 20 Aug 2026 Form 4 Insider Report for VICOR CORP (VICR)

Reporting relationship: Director
Issuer ticker: VICR
Reported as of: 20 Aug 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 24 Aug 2026, 14:40:37 UTC
Prior SEC filing: 18 Aug 2026
Source filing: View source filing
Reporting owner signature: /s/Quentin A. Fendelet Attorney in Fact for Samuel J. Anderson

Key filing fact

Samuel J. Anderson filed Form 4 for VICOR CORP (VICR) on 24 Aug 2026.

Key facts

This page summarizes Samuel J. Anderson's Form 4 filing for VICOR CORP (VICR).
10 reported transactions and 5 derivative rows are listed below.
Accepted by SEC: 24 Aug 2026, 14:40.

Change

Previous filing in this sequence was filed on 18 Aug 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001195966 Primary reporting owner

ANDERSON SAMUEL J

Relationship: Director
Address: 25 FRONTAGE ROAD, ANDOVER
Signature: /s/Quentin A. Fendelet Attorney in Fact for Samuel J. Anderson
Signature date: 24 Aug 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

VICR transaction

Common Stock

Options Exercise

Transaction value
Shares: +331
Change %: +8.2%
Price: $60.37^*
Shares after: 4,365
Date: 20 Aug 2026
Ownership: Direct

VICR transaction

Common Stock

Options Exercise

Transaction value
Shares: +754
Change %: +17%
Price: $53.07^*
Shares after: 5,119
Date: 20 Aug 2026
Ownership: Direct

VICR transaction

Common Stock

Options Exercise

Transaction value
Shares: +908
Change %: +18%
Price: $44.07^*
Shares after: 6,027
Date: 20 Aug 2026
Ownership: Direct

VICR transaction

Common Stock

Options Exercise

Transaction value
Shares: +200
Change %: +3.3%
Price: $100.00^*
Shares after: 6,227
Date: 20 Aug 2026
Ownership: Direct

VICR transaction

Common Stock

Options Exercise

Transaction value
Shares: +1,216
Change %: +20%
Price: $32.89^*
Shares after: 7,443
Date: 20 Aug 2026
Ownership: Direct

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

VICR transaction Derivative

Non Qualified Stock Option

Options Exercise

Transaction value
Shares: -331
Change %: -50%
Price: $0.000000^*
Shares after: 331
Date: 20 Aug 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 331
Exercise price: $60.37

VICR transaction Derivative

Non Qualified Stock Option

Options Exercise

Transaction value
Shares: -754
Change %: -33%
Price: $0.000000^*
Shares after: 1,507
Date: 20 Aug 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 754
Exercise price: $53.07

VICR transaction Derivative

Non Qualified Stock Option

Options Exercise

Transaction value
Shares: -908
Change %: -20%
Price: $0.000000^*
Shares after: 3,631
Date: 20 Aug 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 908
Exercise price: $44.07

VICR transaction Derivative

Non Qualified Stock Option

Options Exercise

Transaction value
Shares: -200
Change %: -100%
Price: $0.000000^*
Shares after: 0
Date: 20 Aug 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 200
Exercise price: $100.00

VICR transaction Derivative

Non Qualified Stock Option

Options Exercise

Transaction value
Shares: -1,216
Change %: -25%
Price: $0.000000^*
Shares after: 3,648
Date: 20 Aug 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 1,216
Exercise price: $32.89

^* marks a reported price that did not pass the local price check.