Patrizio Vinciarelli - 19 Mar 2026 Form 4 Insider Report for VICOR CORP (VICR)

Role
Chairman and CEO, Director, 10%+ Owner
Signature
/s/Kemble D. Morrison. Attorney in fact for Patrizio Vinciarelli
Issuer symbol
VICR
Transactions as of
19 Mar 2026
Net transactions value
-$8,969,590
Form type
4
Filing time
20 Mar 2026, 14:27:59 UTC
Previous filing
19 Mar 2026
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
VINCIARELLI PATRIZIO Chairman and CEO, Director, 10%+ Owner C/O VICOR CORPORATION, 25 FRONTAGE RD., ANDOVER /s/Kemble D. Morrison. Attorney in fact for Patrizio Vinciarelli 20 Mar 2026 0000901484

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction VICR Common Stock Sale $1,436,437 -8,339 -0.09% $172.26 9,149,824 19 Mar 2026 Direct F2, F3
transaction VICR Common Stock Sale $2,122,694 -12,262 -0.13% $173.11 9,137,562 19 Mar 2026 Direct F2, F4
transaction VICR Common Stock Sale $452,435 -2,599 -0.03% $174.08 9,134,963 19 Mar 2026 Direct F2, F5
transaction VICR Common Stock Sale $140,216 -800 -0.01% $175.27 9,134,163 19 Mar 2026 Direct F2, F6
transaction VICR Common Stock Sale $70,602 -400 -0% $176.50 9,133,763 19 Mar 2026 Direct F2, F7
transaction VICR Common Stock Sale $106,764 -600 -0.01% $177.94 9,133,163 19 Mar 2026 Direct F2, F8
transaction VICR Common Stock Sale $89,969 -500 -0.01% $179.94 9,132,663 19 Mar 2026 Direct F2, F9
transaction VICR Common Stock Sale $433,361 -2,383 -0.03% $181.86 9,130,280 19 Mar 2026 Direct F2, F10
transaction VICR Common Stock Sale $973,047 -5,325 -0.06% $182.73 9,124,955 19 Mar 2026 Direct F2, F11
transaction VICR Common Stock Sale $966,065 -5,262 -0.06% $183.59 9,119,693 19 Mar 2026 Direct F2, F12
transaction VICR Common Stock Sale $262,517 -1,421 -0.02% $184.74 9,118,272 19 Mar 2026 Direct F2, F13
transaction VICR Common Stock Sale $203,229 -1,095 -0.01% $185.60 9,117,177 19 Mar 2026 Direct F2, F14
transaction VICR Common Stock Sale $74,573 -399 -0% $186.90 9,116,778 19 Mar 2026 Direct F2, F15
transaction VICR Common Stock Sale $75,030 -400 -0% $187.58 9,116,378 19 Mar 2026 Direct F2, F16
transaction VICR Common Stock Sale $553,582 -2,917 -0.03% $189.78 9,113,461 19 Mar 2026 Direct F2, F17
transaction VICR Common Stock Sale $826,042 -4,342 -0.05% $190.24 9,109,119 19 Mar 2026 Direct F2, F18
transaction VICR Common Stock Sale $183,026 -956 -0.01% $191.45 9,108,163 19 Mar 2026 Direct F2, F19
holding VICR Common Stock 171,125 19 Mar 2026 See Footnote F1
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.

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).

Explanation of Responses:

Id Content
F1 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.
F2 This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 3, 2025.
F3 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $172.0000 to $172.9700. The reporting person undertakes to provide to Vicor Corporation, any security holder of Vicor Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (3) through (19) to this Form 4.
F4 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $173.0000 to $173.9800.
F5 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $174.0000 to $174.9700.
F6 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $175.0000 to $175.9000.
F7 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $176.4100 to $176.6300.
F8 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $177.9100 to $178.0400.
F9 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $179.5500 to $180.3100.
F10 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $181.2000 to $182.1700.
F11 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $182.2100 to $183.1800.
F12 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $183.2100 to $184.2000.
F13 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $184.2300 to $185.2200.
F14 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $185.2300 to $186.0600.
F15 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $186.2500 to $187.1900.
F16 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $187.3300 to $187.8100.
F17 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $189.0000 to $189.9700.
F18 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $190.0100 to $190.8600.
F19 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $191.1800 to $191.9700.