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Nasdaq · USD

VICR

VICOR CORP

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Tapewire entity
1442
SEC CIK
0000751978
Parsed reports
659

Last 12 months

Inside the activity.

0 purchase rows · 981 sale rows

Disclosed non-derivative P/S rows, by transaction month. Includes amendments and private transactions.
Monthly counts
MonthPurchasesSales
Nov 2025012
Dec 2025034
Jan 202604
Feb 2026023
Mar 20260221
Apr 2026030
May 20260120
Jun 20260430
Jul 2026057
Aug 2026011
Sep 202604
Oct 2026035

Latest available

Insider transactions

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateOwner / reported roleActivity / securityShares / unitsReported priceReported valueDetails
April 14, 2026 Filed Apr 15, 2026 20:06 UTC
VINCIARELLI PATRIZIODirector · Chairman and CEO · 10% owner
Exercise / conversionCommon Stock 1,372 $60.61 $83,156.92
Disclosure

SEC source: 0000901484-26-000006 · primary_doc.xml · nonDerivative · entry 3

VINCIARELLI PATRIZIO · CIK 0000901484 · Director · Chairman and CEO · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,945,090

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
April 14, 2026 Filed Apr 15, 2026 20:06 UTC
VINCIARELLI PATRIZIODirector · Chairman and CEO · 10% owner
Exercise / conversionCommon Stock 3,455 $41.61 $143,762.55
Disclosure

SEC source: 0000901484-26-000006 · primary_doc.xml · nonDerivative · entry 2

VINCIARELLI PATRIZIO · CIK 0000901484 · Director · Chairman and CEO · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,943,718

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
April 14, 2026 Filed Apr 15, 2026 14:48 UTC
VINCIARELLI PATRIZIODirector · Chairman and CEO · 10% owner
SaleCommon Stock 10,000 $190.00 $1,900,005.00
Disclosure

SEC source: 0000901484-26-000005 · primary_doc.xml · nonDerivative · entry 3

VINCIARELLI PATRIZIO · CIK 0000901484 · Director · Chairman and CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 8,940,263

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 3, 2025.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $190.0000 to $190.0100.

Read SEC document
April 14, 2026 Filed Apr 15, 2026 14:48 UTC
VINCIARELLI PATRIZIODirector · Chairman and CEO · 10% owner
SaleCommon Stock 9,778 $189.00 $1,848,042.00
Disclosure

SEC source: 0000901484-26-000005 · primary_doc.xml · nonDerivative · entry 2

VINCIARELLI PATRIZIO · CIK 0000901484 · Director · Chairman and CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 8,950,263

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 3, 2025.

F3 · price: 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 $189.0000. 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 (4) to this Form 4.

Read SEC document
April 09, 2026 Filed Apr 10, 2026 15:27 UTC
VINCIARELLI PATRIZIODirector · Chairman and CEO · 10% owner
SaleCommon Stock 222 $189.00 $41,958.00
Disclosure

SEC source: 0000901484-26-000004 · primary_doc.xml · nonDerivative · entry 5

VINCIARELLI PATRIZIO · CIK 0000901484 · Director · Chairman and CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 8,960,041

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 3, 2025.

F6 · price: 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 $189.0000.

Read SEC document
April 09, 2026 Filed Apr 10, 2026 15:27 UTC
VINCIARELLI PATRIZIODirector · Chairman and CEO · 10% owner
SaleCommon Stock 10,000 $188.00 $1,880,000.00
Disclosure

SEC source: 0000901484-26-000004 · primary_doc.xml · nonDerivative · entry 4

VINCIARELLI PATRIZIO · CIK 0000901484 · Director · Chairman and CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 8,960,263

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 3, 2025.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $188.0000 to $188.0000.

Read SEC document
April 09, 2026 Filed Apr 10, 2026 15:27 UTC
VINCIARELLI PATRIZIODirector · Chairman and CEO · 10% owner
SaleCommon Stock 10,000 $187.00 $1,870,000.00
Disclosure

SEC source: 0000901484-26-000004 · primary_doc.xml · nonDerivative · entry 3

VINCIARELLI PATRIZIO · CIK 0000901484 · Director · Chairman and CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 8,970,263

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 3, 2025.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $187.0000 to $187.0000.

Read SEC document
April 09, 2026 Filed Apr 10, 2026 15:27 UTC
VINCIARELLI PATRIZIODirector · Chairman and CEO · 10% owner
SaleCommon Stock 4,721 $186.00 $878,106.00
Disclosure

SEC source: 0000901484-26-000004 · primary_doc.xml · nonDerivative · entry 2

VINCIARELLI PATRIZIO · CIK 0000901484 · Director · Chairman and CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 8,980,263

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 3, 2025.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $186.0000 to $186.0000. 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 (6) to this Form 4.

Read SEC document
April 01, 2026 Filed Apr 2, 2026 19:40 UTC
Davies Philip DDirector · Corp. VP - Sales
Exercise / conversionNon Qualified Stock Option · Derivative 1,611 $0.00 Strike: $31.05 $0.00
Disclosure

SEC source: 0001512868-26-000003 · primary_doc.xml · derivative · entry 12

Davies Philip D · CIK 0001512868 · Director · Corp. VP - Sales

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 1,611 shares

Expires 2029-06-28

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
April 01, 2026 Filed Apr 2, 2026 19:40 UTC
Davies Philip DDirector · Corp. VP - Sales
Exercise / conversionNon Qualified Stock Option · Derivative 1,461 $0.00 Strike: $30.98 $0.00
Disclosure

SEC source: 0001512868-26-000003 · primary_doc.xml · derivative · entry 11

Davies Philip D · CIK 0001512868 · Director · Corp. VP - Sales

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 8,539

Underlying: Common Stock · 1,461 shares

Expires 2029-09-06

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
April 01, 2026 Filed Apr 2, 2026 19:40 UTC
Davies Philip DDirector · Corp. VP - Sales
SaleCommon Stock 100 $167.75 $16,775.00
Disclosure

SEC source: 0001512868-26-000003 · primary_doc.xml · nonDerivative · entry 10

Davies Philip D · CIK 0001512868 · Director · Corp. VP - Sales

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 1,920

F1 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 21, 2025.

F9 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $167.7500 to $167.7500.

Read SEC document
April 01, 2026 Filed Apr 2, 2026 19:40 UTC
Davies Philip DDirector · Corp. VP - Sales
SaleCommon Stock 300 $166.49 $49,947.00
Disclosure

SEC source: 0001512868-26-000003 · primary_doc.xml · nonDerivative · entry 9

Davies Philip D · CIK 0001512868 · Director · Corp. VP - Sales

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 2,020

F1 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 21, 2025.

F8 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $166.3100 to $166.6000.

Read SEC document
April 01, 2026 Filed Apr 2, 2026 19:40 UTC
Davies Philip DDirector · Corp. VP - Sales
SaleCommon Stock 627 $165.69 $103,884.56
Disclosure

SEC source: 0001512868-26-000003 · primary_doc.xml · nonDerivative · entry 8

Davies Philip D · CIK 0001512868 · Director · Corp. VP - Sales

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 2,320

F1 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 21, 2025.

F7 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $165.2800 to $166.0100.

Read SEC document
April 01, 2026 Filed Apr 2, 2026 19:40 UTC
Davies Philip DDirector · Corp. VP - Sales
SaleCommon Stock 1,073 $164.46 $176,460.86
Disclosure

SEC source: 0001512868-26-000003 · primary_doc.xml · nonDerivative · entry 7

Davies Philip D · CIK 0001512868 · Director · Corp. VP - Sales

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 2,947

F1 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 21, 2025.

F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $163.8500 to $164.8100.

Read SEC document
April 01, 2026 Filed Apr 2, 2026 19:40 UTC
Davies Philip DDirector · Corp. VP - Sales
SaleCommon Stock 100 $162.61 $16,261.00
Disclosure

SEC source: 0001512868-26-000003 · primary_doc.xml · nonDerivative · entry 6

Davies Philip D · CIK 0001512868 · Director · Corp. VP - Sales

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,020

F1 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 21, 2025.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $162.6100 to $162.6100.

Read SEC document
April 01, 2026 Filed Apr 2, 2026 19:40 UTC
Davies Philip DDirector · Corp. VP - Sales
SaleCommon Stock 100 $160.34 $16,034.00
Disclosure

SEC source: 0001512868-26-000003 · primary_doc.xml · nonDerivative · entry 5

Davies Philip D · CIK 0001512868 · Director · Corp. VP - Sales

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,120

F1 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 21, 2025.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $160.3400 to $160.3400

Read SEC document
April 01, 2026 Filed Apr 2, 2026 19:40 UTC
Davies Philip DDirector · Corp. VP - Sales
SaleCommon Stock 300 $159.35 $47,805.00
Disclosure

SEC source: 0001512868-26-000003 · primary_doc.xml · nonDerivative · entry 4

Davies Philip D · CIK 0001512868 · Director · Corp. VP - Sales

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,220

F1 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 21, 2025.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $159.2900 to $159.4300.

Read SEC document
April 01, 2026 Filed Apr 2, 2026 19:40 UTC
Davies Philip DDirector · Corp. VP - Sales
SaleCommon Stock 472 $158.29 $74,711.65
Disclosure

SEC source: 0001512868-26-000003 · primary_doc.xml · nonDerivative · entry 3

Davies Philip D · CIK 0001512868 · Director · Corp. VP - Sales

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,520

F1 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 21, 2025.

F2 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $158.0000 to $158.7900. 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 (2) through (9) to this Form 4.

Read SEC document
April 01, 2026 Filed Apr 2, 2026 19:40 UTC
Davies Philip DDirector · Corp. VP - Sales
Exercise / conversionCommon Stock 1,611 $31.05 $50,021.55
Disclosure

SEC source: 0001512868-26-000003 · primary_doc.xml · nonDerivative · entry 2

Davies Philip D · CIK 0001512868 · Director · Corp. VP - Sales

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 4,992

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
April 01, 2026 Filed Apr 2, 2026 19:40 UTC
Davies Philip DDirector · Corp. VP - Sales
Exercise / conversionCommon Stock 1,461 $30.98 $45,261.78
Disclosure

SEC source: 0001512868-26-000003 · primary_doc.xml · nonDerivative · entry 1

Davies Philip D · CIK 0001512868 · Director · Corp. VP - Sales

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 3,381

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

Read SEC document
March 25, 2026 Filed Mar 26, 2026 17:13 UTC
VINCIARELLI PATRIZIODirector · Chairman and CEO · 10% owner
SaleCommon Stock 5,279 $186.00 $981,894.00
Disclosure

SEC source: 0001193125-26-125795 · ownership.xml · nonDerivative · entry 6

VINCIARELLI PATRIZIO · CIK 0000901484 · Director · Chairman and CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 8,984,984

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 3, 2025.

F7 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $186.0000 to $186.0000.

Read SEC document
March 25, 2026 Filed Mar 26, 2026 17:13 UTC
VINCIARELLI PATRIZIODirector · Chairman and CEO · 10% owner
SaleCommon Stock 10,000 $185.00 $1,850,000.00
Disclosure

SEC source: 0001193125-26-125795 · ownership.xml · nonDerivative · entry 5

VINCIARELLI PATRIZIO · CIK 0000901484 · Director · Chairman and CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 8,990,263

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 3, 2025.

F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $185.0000 to $185.0000.

Read SEC document
March 25, 2026 Filed Mar 26, 2026 17:13 UTC
VINCIARELLI PATRIZIODirector · Chairman and CEO · 10% owner
SaleCommon Stock 18,960 $183.74 $3,483,659.21
Disclosure

SEC source: 0001193125-26-125795 · ownership.xml · nonDerivative · entry 4

VINCIARELLI PATRIZIO · CIK 0000901484 · Director · Chairman and CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 9,000,263

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 3, 2025.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $183.0900 to $184.0000.

Read SEC document
March 25, 2026 Filed Mar 26, 2026 17:13 UTC
VINCIARELLI PATRIZIODirector · Chairman and CEO · 10% owner
SaleCommon Stock 8,411 $182.48 $1,534,806.48
Disclosure

SEC source: 0001193125-26-125795 · ownership.xml · nonDerivative · entry 3

VINCIARELLI PATRIZIO · CIK 0000901484 · Director · Chairman and CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 9,019,223

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 3, 2025.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $182.0500 to $183.0000.

Read SEC document
March 25, 2026 Filed Mar 26, 2026 17:13 UTC
VINCIARELLI PATRIZIODirector · Chairman and CEO · 10% owner
SaleCommon Stock 7,350 $181.57 $1,334,538.03
Disclosure

SEC source: 0001193125-26-125795 · ownership.xml · nonDerivative · entry 2

VINCIARELLI PATRIZIO · CIK 0000901484 · Director · Chairman and CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 9,027,634

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 3, 2025.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $181.0500 to $182.0400. 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 (7) to this Form 4.

Read SEC document
March 24, 2026 Filed Mar 25, 2026 18:49 UTC
VINCIARELLI PATRIZIODirector · Chairman and CEO · 10% owner
SaleCommon Stock 5,279 $181.00 $955,510.09
Disclosure

SEC source: 0001193125-26-123821 · ownership.xml · nonDerivative · entry 4

VINCIARELLI PATRIZIO · CIK 0000901484 · Director · Chairman and CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 9,034,984

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 3, 2025.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $181.0000 to $181.0400.

Read SEC document
March 24, 2026 Filed Mar 25, 2026 18:49 UTC
VINCIARELLI PATRIZIODirector · Chairman and CEO · 10% owner
SaleCommon Stock 10,000 $180.10 $1,800,986.00
Disclosure

SEC source: 0001193125-26-123821 · ownership.xml · nonDerivative · entry 3

VINCIARELLI PATRIZIO · CIK 0000901484 · Director · Chairman and CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 9,040,263

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 3, 2025.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $180.0000 to $180.3100.

Read SEC document
March 24, 2026 Filed Mar 25, 2026 18:49 UTC
VINCIARELLI PATRIZIODirector · Chairman and CEO · 10% owner
SaleCommon Stock 7,900 $179.00 $1,414,100.00
Disclosure

SEC source: 0001193125-26-123821 · ownership.xml · nonDerivative · entry 2

VINCIARELLI PATRIZIO · CIK 0000901484 · Director · Chairman and CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 9,050,263

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 3, 2025.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $179.0000 to $179.0000. 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 (5) to this Form 4.

Read SEC document
March 23, 2026 Filed Mar 24, 2026 18:33 UTC
VINCIARELLI PATRIZIODirector · Chairman and CEO · 10% owner
SaleCommon Stock 2,790 $176.00 $491,040.00
Disclosure

SEC source: 0001193125-26-121510 · ownership.xml · nonDerivative · entry 3

VINCIARELLI PATRIZIO · CIK 0000901484 · Director · Chairman and CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 9,058,163

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 3, 2025.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $176.0000 to $176.0000.

Read SEC document
March 23, 2026 Filed Mar 24, 2026 18:33 UTC
VINCIARELLI PATRIZIODirector · Chairman and CEO · 10% owner
SaleCommon Stock 3,134 $175.00 $548,450.00
Disclosure

SEC source: 0001193125-26-121510 · ownership.xml · nonDerivative · entry 2

VINCIARELLI PATRIZIO · CIK 0000901484 · Director · Chairman and CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 9,060,953

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 3, 2025.

F3 · price: 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 $175.0000. 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 (4) to this Form 4.

Read SEC document
March 20, 2026 Filed Mar 23, 2026 17:54 UTC
VINCIARELLI PATRIZIODirector · Chairman and CEO · 10% owner
SaleCommon Stock 500 $188.89 $94,445.00
Disclosure

SEC source: 0001193125-26-119264 · ownership.xml · nonDerivative · entry 13

VINCIARELLI PATRIZIO · CIK 0000901484 · Director · Chairman and CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 9,064,087

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 3, 2025.

F14 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $188.8400 to $189.0300.

Read SEC document
March 20, 2026 Filed Mar 23, 2026 17:54 UTC
VINCIARELLI PATRIZIODirector · Chairman and CEO · 10% owner
SaleCommon Stock 1,101 $187.43 $206,355.92
Disclosure

SEC source: 0001193125-26-119264 · ownership.xml · nonDerivative · entry 12

VINCIARELLI PATRIZIO · CIK 0000901484 · Director · Chairman and CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 9,064,587

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 3, 2025.

F13 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $186.7600 to $187.5900.

Read SEC document
March 20, 2026 Filed Mar 23, 2026 17:54 UTC
VINCIARELLI PATRIZIODirector · Chairman and CEO · 10% owner
SaleCommon Stock 3,999 $186.27 $744,898.53
Disclosure

SEC source: 0001193125-26-119264 · ownership.xml · nonDerivative · entry 11

VINCIARELLI PATRIZIO · CIK 0000901484 · Director · Chairman and CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 9,065,688

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 3, 2025.

F12 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $185.7000 to $186.5500.

Read SEC document
March 20, 2026 Filed Mar 23, 2026 17:54 UTC
VINCIARELLI PATRIZIODirector · Chairman and CEO · 10% owner
SaleCommon Stock 1,500 $184.67 $277,002.00
Disclosure

SEC source: 0001193125-26-119264 · ownership.xml · nonDerivative · entry 10

VINCIARELLI PATRIZIO · CIK 0000901484 · Director · Chairman and CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 9,069,687

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 3, 2025.

F11 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $184.4900 to $184.8200.

Read SEC document
March 20, 2026 Filed Mar 23, 2026 17:54 UTC
VINCIARELLI PATRIZIODirector · Chairman and CEO · 10% owner
SaleCommon Stock 1,958 $182.64 $357,600.11
Disclosure

SEC source: 0001193125-26-119264 · ownership.xml · nonDerivative · entry 9

VINCIARELLI PATRIZIO · CIK 0000901484 · Director · Chairman and CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 9,071,187

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 3, 2025.

F10 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $182.3900 to $182.9100.

Read SEC document
March 20, 2026 Filed Mar 23, 2026 17:54 UTC
VINCIARELLI PATRIZIODirector · Chairman and CEO · 10% owner
SaleCommon Stock 4,656 $181.71 $846,059.92
Disclosure

SEC source: 0001193125-26-119264 · ownership.xml · nonDerivative · entry 8

VINCIARELLI PATRIZIO · CIK 0000901484 · Director · Chairman and CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 9,073,145

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 3, 2025.

F9 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $181.3600 to $182.2000.

Read SEC document
March 20, 2026 Filed Mar 23, 2026 17:54 UTC
VINCIARELLI PATRIZIODirector · Chairman and CEO · 10% owner
SaleCommon Stock 2,201 $180.62 $397,548.58
Disclosure

SEC source: 0001193125-26-119264 · ownership.xml · nonDerivative · entry 7

VINCIARELLI PATRIZIO · CIK 0000901484 · Director · Chairman and CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 9,077,801

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 3, 2025.

F8 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $180.3000 to $181.2700.

Read SEC document
March 20, 2026 Filed Mar 23, 2026 17:54 UTC
VINCIARELLI PATRIZIODirector · Chairman and CEO · 10% owner
SaleCommon Stock 2,579 $179.72 $463,510.00
Disclosure

SEC source: 0001193125-26-119264 · ownership.xml · nonDerivative · entry 6

VINCIARELLI PATRIZIO · CIK 0000901484 · Director · Chairman and CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 9,080,002

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 3, 2025.

F7 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $179.2300 to $180.1700.

Read SEC document
March 20, 2026 Filed Mar 23, 2026 17:54 UTC
VINCIARELLI PATRIZIODirector · Chairman and CEO · 10% owner
SaleCommon Stock 13,126 $178.75 $2,346,307.94
Disclosure

SEC source: 0001193125-26-119264 · ownership.xml · nonDerivative · entry 5

VINCIARELLI PATRIZIO · CIK 0000901484 · Director · Chairman and CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 9,082,581

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 3, 2025.

F6 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $178.2100 to $179.2000.

Read SEC document
March 20, 2026 Filed Mar 23, 2026 17:54 UTC
VINCIARELLI PATRIZIODirector · Chairman and CEO · 10% owner
SaleCommon Stock 4,680 $177.87 $832,435.81
Disclosure

SEC source: 0001193125-26-119264 · ownership.xml · nonDerivative · entry 4

VINCIARELLI PATRIZIO · CIK 0000901484 · Director · Chairman and CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 9,095,707

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 3, 2025.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $177.2100 to $178.2000.

Read SEC document
March 20, 2026 Filed Mar 23, 2026 17:54 UTC
VINCIARELLI PATRIZIODirector · Chairman and CEO · 10% owner
SaleCommon Stock 3,010 $176.00 $529,763.31
Disclosure

SEC source: 0001193125-26-119264 · ownership.xml · nonDerivative · entry 3

VINCIARELLI PATRIZIO · CIK 0000901484 · Director · Chairman and CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 9,100,387

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 3, 2025.

F4 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $175.2800 to $176.1900.

Read SEC document
March 20, 2026 Filed Mar 23, 2026 17:54 UTC
VINCIARELLI PATRIZIODirector · Chairman and CEO · 10% owner
SaleCommon Stock 4,766 $174.64 $832,331.86
Disclosure

SEC source: 0001193125-26-119264 · ownership.xml · nonDerivative · entry 2

VINCIARELLI PATRIZIO · CIK 0000901484 · Director · Chairman and CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 9,103,397

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 3, 2025.

F3 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $174.1100 to $175.0700. 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 (14) to this Form 4.

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March 19, 2026 Filed Mar 20, 2026 18:27 UTC
VINCIARELLI PATRIZIODirector · Chairman and CEO · 10% owner
SaleCommon Stock 956 $191.45 $183,026.30
Disclosure

SEC source: 0001193125-26-117370 · ownership.xml · nonDerivative · entry 18

VINCIARELLI PATRIZIO · CIK 0000901484 · Director · Chairman and CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 9,108,163

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 3, 2025.

F19 · price: 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.

Read SEC document
March 19, 2026 Filed Mar 20, 2026 18:27 UTC
VINCIARELLI PATRIZIODirector · Chairman and CEO · 10% owner
SaleCommon Stock 4,342 $190.24 $826,041.62
Disclosure

SEC source: 0001193125-26-117370 · ownership.xml · nonDerivative · entry 17

VINCIARELLI PATRIZIO · CIK 0000901484 · Director · Chairman and CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 9,109,119

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 3, 2025.

F18 · price: 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.

Read SEC document
March 19, 2026 Filed Mar 20, 2026 18:27 UTC
VINCIARELLI PATRIZIODirector · Chairman and CEO · 10% owner
SaleCommon Stock 2,917 $189.78 $553,581.84
Disclosure

SEC source: 0001193125-26-117370 · ownership.xml · nonDerivative · entry 16

VINCIARELLI PATRIZIO · CIK 0000901484 · Director · Chairman and CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 9,113,461

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 3, 2025.

F17 · price: 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.

Read SEC document
March 19, 2026 Filed Mar 20, 2026 18:27 UTC
VINCIARELLI PATRIZIODirector · Chairman and CEO · 10% owner
SaleCommon Stock 400 $187.58 $75,030.00
Disclosure

SEC source: 0001193125-26-117370 · ownership.xml · nonDerivative · entry 15

VINCIARELLI PATRIZIO · CIK 0000901484 · Director · Chairman and CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 9,116,378

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 3, 2025.

F16 · price: 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.

Read SEC document
March 19, 2026 Filed Mar 20, 2026 18:27 UTC
VINCIARELLI PATRIZIODirector · Chairman and CEO · 10% owner
SaleCommon Stock 399 $186.90 $74,572.98
Disclosure

SEC source: 0001193125-26-117370 · ownership.xml · nonDerivative · entry 14

VINCIARELLI PATRIZIO · CIK 0000901484 · Director · Chairman and CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 9,116,778

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 3, 2025.

F15 · price: 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.

Read SEC document
March 19, 2026 Filed Mar 20, 2026 18:27 UTC
VINCIARELLI PATRIZIODirector · Chairman and CEO · 10% owner
SaleCommon Stock 1,095 $185.60 $203,228.82
Disclosure

SEC source: 0001193125-26-117370 · ownership.xml · nonDerivative · entry 13

VINCIARELLI PATRIZIO · CIK 0000901484 · Director · Chairman and CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 9,117,177

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 3, 2025.

F14 · price: 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.

Read SEC document
March 19, 2026 Filed Mar 20, 2026 18:27 UTC
VINCIARELLI PATRIZIODirector · Chairman and CEO · 10% owner
SaleCommon Stock 1,421 $184.74 $262,517.25
Disclosure

SEC source: 0001193125-26-117370 · ownership.xml · nonDerivative · entry 12

VINCIARELLI PATRIZIO · CIK 0000901484 · Director · Chairman and CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 9,118,272

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 3, 2025.

F13 · price: 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.

Read SEC document
March 19, 2026 Filed Mar 20, 2026 18:27 UTC
VINCIARELLI PATRIZIODirector · Chairman and CEO · 10% owner
SaleCommon Stock 5,262 $183.59 $966,065.31
Disclosure

SEC source: 0001193125-26-117370 · ownership.xml · nonDerivative · entry 11

VINCIARELLI PATRIZIO · CIK 0000901484 · Director · Chairman and CEO · 10% owner

10b5-1 filing: Plan reported

Ownership: Direct

Disclosed balance after: 9,119,693

F2 · kind: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 3, 2025.

F12 · price: 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.

Read SEC document

Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.