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Vicor (VICR) 10K Form and Latest SEC Filings 2026

Vicor logo
$243.43 -5.59 (-2.24%)
Closing price 05/19/2026 04:00 PM Eastern
Extended Trading
$252.00 +8.57 (+3.52%)
As of 06:28 AM Eastern
Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Massive. Learn more.

Latest Vicor SEC Filings & Recent Activity

Vicor (NASDAQ:VICR) has submitted 671+ documents to the U.S. Securities and Exchange Commission (SEC) since 2017. For investors, these filings are the primary source of verified financial data — covering everything from annual revenue and debt levels in the 10-K, to material business events in 8-K current reports, to insider buying and selling activity in Form 4 disclosures. Key figures from these filings, including revenue, earnings, and cash flow, are summarized in Vicor's financial statements. The most recent filing was a Form 4 submitted on May 15, 2026.

Form 4
VICOR CORP Reports Ownership Change on May. 15, 2026

Form 4 filings disclose changes in stock ownership by company insiders, including purchases, sales, grants, and option exercises.

View insider ownership

8-K
Vicor Files Current Report on Apr. 21, 2026

An 8-K is filed when a material corporate event occurs, such as an acquisition, leadership change, or financial update.

View filing

10-Q
Vicor Files Quarterly Report on Apr. 30, 2026

The 10-Q contains Vicor's unaudited quarterly financial statements, revenue, earnings updates, and cash flow changes between annual reports.

View earnings history

Vicor SEC Filing History

Browse Vicor's complete SEC filing history using the filters below. Filter by form type - 10-K, 10-Q, 8-K, Form 4, and more - or set a custom date range to find a filing.

DateFilerForm TypeView
05/15/2026 10:47 AM
D'Amico Andrew (1830195) Reporting
Vicor (751978) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
05/15/2026 9:07 AM
PRICE T ROWE ASSOCIATES INC /MD/ (80255) Filed by
Vicor (751978) Subject
Form SCHEDULE 13G
05/14/2026 3:30 PM
D'Amico Andrew (1830195) Reporting
Vicor (751978) Subject
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
05/14/2026 2:33 PM
Gusinov Alex (1654925) Reporting
Vicor (751978) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
05/14/2026 1:45 PM
D'Amico Andrew (1830195) Reporting
Vicor (751978) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
05/14/2026 9:47 AM
Vicor (751978) Issuer
VINCIARELLI PATRIZIO (901484) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
05/13/2026 3:33 PM
D'Amico Andrew (1830195) Reporting
Vicor (751978) Subject
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
05/13/2026 12:44 PM
Doyle Alvaro (1826730) Reporting
Vicor (751978) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
05/13/2026 9:29 AM
D'Amico Andrew (1830195) Reporting
Vicor (751978) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
05/12/2026 3:05 PM
Doyle Alvaro (1826730) Reporting
Vicor (751978) Subject
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
05/12/2026 2:28 PM
Tuozzolo Claudio (1403540) Reporting
Vicor (751978) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
05/12/2026 2:14 PM
Morrison Kemble D (1411500) Reporting
Vicor (751978) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
05/12/2026 1:25 PM
McNamara Michael (1545814) Reporting
Vicor (751978) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
05/12/2026 11:11 AM
Fendelet Quentin A. (1912196) Reporting
Vicor (751978) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
05/12/2026 8:25 AM
JPMORGAN CHASE & CO (19617) Filed by
JPMORGAN CHASE & CO (19617) Filed by
JPMORGAN CHASE & CO (19617) Filed by
JPMORGAN CHASE & CO (19617) Filed by
Vicor (751978) Subject
Form SCHEDULE 13G/A
05/11/2026 4:09 PM
Tuozzolo Claudio (1403540) Reporting
Vicor (751978) Subject
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
05/11/2026 3:16 PM
Morrison Kemble D (1411500) Reporting
Vicor (751978) Subject
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
05/11/2026 3:05 PM
McNamara Michael (1545814) Reporting
Vicor (751978) Subject
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
05/08/2026 2:11 PM
Tuozzolo Claudio (1403540) Reporting
Vicor (751978) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
05/08/2026 1:10 PM
Fendelet Quentin A. (1912196) Reporting
Vicor (751978) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
05/08/2026 9:27 AM
CARLSON JASON (1204864) Reporting
Vicor (751978) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
05/07/2026 1:42 PM
Vicor (751978) Issuer
VINCIARELLI PATRIZIO (901484) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
05/07/2026 12:30 PM
Davies Philip D (1512868) Reporting
Vicor (751978) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
05/07/2026 11:27 AM
Grava Nancy L (1654862) Reporting
Vicor (751978) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
05/06/2026 4:03 PM
Grava Nancy L (1654862) Reporting
Vicor (751978) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
05/06/2026 3:47 PM
McNamara Michael (1545814) Reporting
Vicor (751978) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
05/06/2026 3:32 PM
Fendelet Quentin A. (1912196) Reporting
Vicor (751978) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
05/06/2026 3:05 PM
CARLSON JASON (1204864) Reporting
Vicor (751978) Subject
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
05/06/2026 2:39 PM
Gusinov Alex (1654925) Reporting
Vicor (751978) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
05/06/2026 2:24 PM
Doyle Alvaro (1826730) Reporting
Vicor (751978) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
05/05/2026 2:13 PM
Schmidt James F (1866281) Reporting
Vicor (751978) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
05/05/2026 10:28 AM
D'Amico Andrew (1830195) Reporting
Vicor (751978) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
05/04/2026 11:01 AM
Davies Philip D (1512868) Reporting
Vicor (751978) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
05/04/2026 7:17 AM
JPMORGAN CHASE & CO (19617) Filed by
JPMORGAN CHASE & CO (19617) Filed by
JPMORGAN CHASE & CO (19617) Filed by
JPMORGAN CHASE & CO (19617) Filed by
Vicor (751978) Subject
Form SCHEDULE 13G/A
04/30/2026 9:23 AM
Vicor (751978) Filer
Form 10-Q
General form for quarterly reports under Section 13 or 15(d)  
04/30/2026 9:17 AM
Vicor (751978) Filer
Form ARS
04/28/2026 1:05 PM
D'Amico Andrew (1830195) Reporting
Vicor (751978) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
04/27/2026 3:33 PM
D'Amico Andrew (1830195) Reporting
Vicor (751978) Subject
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
04/27/2026 2:31 PM
Vicor (751978) Issuer
VINCIARELLI PATRIZIO (901484) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
04/27/2026 12:43 PM
Tuozzolo Claudio (1403540) Reporting
Vicor (751978) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
04/27/2026 10:21 AM
Doyle Alvaro (1826730) Reporting
Vicor (751978) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
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04/24/2026 3:14 PM
Tuozzolo Claudio (1403540) Reporting
Vicor (751978) Subject
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
04/23/2026 4:00 PM
Doyle Alvaro (1826730) Reporting
Vicor (751978) Subject
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
04/21/2026 6:20 AM
Vicor (751978) Filer
Form 8-K
Current report pursuant to Section 13 or 15(d)  
04/17/2026 12:08 PM
Vicor (751978) Issuer
VINCIARELLI PATRIZIO (901484) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
04/16/2026 3:13 PM
Vicor (751978) Subject
VINCIARELLI PATRIZIO (901484) Reporting
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
04/16/2026 1:05 PM
Vicor (751978) Issuer
VINCIARELLI PATRIZIO (901484) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
04/15/2026 3:44 PM
Vicor (751978) Subject
VINCIARELLI PATRIZIO (901484) Reporting
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
04/15/2026 3:06 PM
Vicor (751978) Issuer
VINCIARELLI PATRIZIO (901484) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
04/15/2026 9:48 AM
Vicor (751978) Issuer
VINCIARELLI PATRIZIO (901484) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
04/14/2026 3:38 PM
Vicor (751978) Subject
VINCIARELLI PATRIZIO (901484) Reporting
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
04/10/2026 10:27 AM
Vicor (751978) Issuer
VINCIARELLI PATRIZIO (901484) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
04/09/2026 3:23 PM
Vicor (751978) Subject
VINCIARELLI PATRIZIO (901484) Reporting
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
04/02/2026 2:40 PM
Davies Philip D (1512868) Reporting
Vicor (751978) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
03/27/2026 12:55 PM
VANGUARD GROUP INC (102909) Filed by
Vicor (751978) Subject
Form SCHEDULE 13G/A
03/26/2026 12:13 PM
Vicor (751978) Issuer
VINCIARELLI PATRIZIO (901484) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
03/25/2026 3:22 PM
Vicor (751978) Subject
VINCIARELLI PATRIZIO (901484) Reporting
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
03/25/2026 1:49 PM
Vicor (751978) Issuer
VINCIARELLI PATRIZIO (901484) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
03/24/2026 3:26 PM
Vicor (751978) Subject
VINCIARELLI PATRIZIO (901484) Reporting
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
03/24/2026 1:33 PM
Vicor (751978) Issuer
VINCIARELLI PATRIZIO (901484) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
03/23/2026 3:38 PM
Vicor (751978) Subject
VINCIARELLI PATRIZIO (901484) Reporting
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
03/23/2026 12:54 PM
Vicor (751978) Issuer
VINCIARELLI PATRIZIO (901484) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
03/20/2026 3:33 PM
Vicor (751978) Subject
VINCIARELLI PATRIZIO (901484) Reporting
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
03/20/2026 1:27 PM
Vicor (751978) Issuer
VINCIARELLI PATRIZIO (901484) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
03/19/2026 1:06 PM
Vicor (751978) Issuer
VINCIARELLI PATRIZIO (901484) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
03/18/2026 3:40 PM
Vicor (751978) Issuer
VINCIARELLI PATRIZIO (901484) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
03/18/2026 3:26 PM
Vicor (751978) Subject
VINCIARELLI PATRIZIO (901484) Reporting
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
03/18/2026 12:51 PM
McNamara Michael (1545814) Reporting
Vicor (751978) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
03/17/2026 4:19 PM
Vicor (751978) Issuer
VINCIARELLI PATRIZIO (901484) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
03/16/2026 5:43 PM
Vicor (751978) Issuer
VINCIARELLI PATRIZIO (901484) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
03/16/2026 12:36 PM
EICHTEN ESTIA J (1111769) Reporting
Vicor (751978) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
03/13/2026 4:25 PM
EICHTEN ESTIA J (1111769) Reporting
Vicor (751978) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
03/13/2026 3:22 PM
Vicor (751978) Subject
VINCIARELLI PATRIZIO (901484) Reporting
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
03/13/2026 11:38 AM
Vicor (751978) Issuer
VINCIARELLI PATRIZIO (901484) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
03/12/2026 3:24 PM
Vicor (751978) Subject
VINCIARELLI PATRIZIO (901484) Reporting
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
03/12/2026 2:05 PM
Schmidt James F (1866281) Reporting
Vicor (751978) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
03/12/2026 2:16 PM
Vicor (751978) Issuer
VINCIARELLI PATRIZIO (901484) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
03/11/2026 3:39 PM
Schmidt James F (1866281) Reporting
Vicor (751978) Subject
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
03/11/2026 2:35 PM
Schmidt James F (1866281) Reporting
Vicor (751978) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
03/11/2026 12:47 PM
Vicor (751978) Issuer
VINCIARELLI PATRIZIO (901484) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
03/11/2026 1:15 PM
Vicor (751978) Issuer
VINCIARELLI PATRIZIO (901484) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
03/10/2026 7:38 PM
Vicor (751978) Issuer
VINCIARELLI PATRIZIO (901484) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
03/10/2026 3:38 PM
Vicor (751978) Subject
VINCIARELLI PATRIZIO (901484) Reporting
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
03/09/2026 3:08 PM
Davies Philip D (1512868) Reporting
Vicor (751978) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
03/09/2026 10:08 AM
Vicor (751978) Issuer
VINCIARELLI PATRIZIO (901484) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
03/06/2026 3:30 PM
Vicor (751978) Subject
VINCIARELLI PATRIZIO (901484) Reporting
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
03/06/2026 12:29 PM
CRILLY SEAN (1655180) Reporting
Vicor (751978) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
03/06/2026 9:40 AM
Vicor (751978) Issuer
VINCIARELLI PATRIZIO (901484) Reporting
Form 4
Statement of changes in beneficial ownership of securities  
03/05/2026 3:51 PM
CRILLY SEAN (1655180) Reporting
Vicor (751978) Subject
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
03/05/2026 3:27 PM
Vicor (751978) Subject
VINCIARELLI PATRIZIO (901484) Reporting
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
03/05/2026 10:30 AM
Shen Zheng John (1941132) Reporting
Vicor (751978) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
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03/04/2026 3:38 PM
Vicor (751978) Subject
VINCIARELLI PATRIZIO (901484) Reporting
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
03/04/2026 3:18 PM
Shen Zheng John (1941132) Reporting
Vicor (751978) Subject
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
03/03/2026 12:49 PM
Fendelet Quentin A. (1912196) Reporting
Vicor (751978) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
03/02/2026 1:38 PM
Vicor (751978) Filer
Form 10-K
Annual report pursuant to Section 13 or 15(d)  
03/02/2026 10:28 AM
CRILLY SEAN (1655180) Reporting
Vicor (751978) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
02/27/2026 9:03 AM
Gusinov Alex (1654925) Reporting
Vicor (751978) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
02/26/2026 4:53 PM
Gusinov Alex (1654925) Reporting
Vicor (751978) Subject
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
02/26/2026 10:30 AM
Tuozzolo Claudio (1403540) Reporting
Vicor (751978) Issuer
Form 4
Statement of changes in beneficial ownership of securities  
02/25/2026 4:50 PM
Tuozzolo Claudio (1403540) Reporting
Vicor (751978) Subject
Form 144
Notice of proposed sale of securities pursuant to Rule 144  
(Data available from 1/1/2016 forward)

Vicor SEC Filings - Frequently Asked Questions

Vicor (VICR) has submitted 671+ filings to the SEC since 2017. You can browse the complete history or filter by form type using the tools above.

Vicor's fiscal year ends on December 31. The company typically files its 10-K annual report by the end of February, covering the prior fiscal year's financial results. Key financial data from these reports is available on Vicor's financial statements page.

The most recent filing was a Form 4 submitted on May 15, 2026. This was an insider ownership change filed by 4 - VICOR CORP (0000751978) (Issuer).

SEC Filing Types: 10-K, 10-Q, 8-K and More

SEC filings are legally required disclosures that public companies submit to the U.S. Securities and Exchange Commission. Unlike press releases or earnings call transcripts, these documents are filed under legal obligation — meaning the financial data they contain is audited, standardized, and subject to penalties if materially false. For investors, that makes SEC filings the most reliable primary source available for evaluating a company's true financial position.

Yes. All SEC filings are publicly available through the SEC's EDGAR database and on financial research platforms like MarketBeat. Companies are required by law to make these disclosures accessible to all investors — meaning retail investors have access to the same source documents as institutional analysts.

A 10-K is an annual report containing audited financial statements and a full review of the company's business — it is the most comprehensive filing a company makes each year. A 10-Q is a shorter, unaudited quarterly update filed three times per year between annual reports. Investors typically use the 10-K for deep fundamental analysis and the 10-Q to track whether the company is on pace with its guidance mid-year.

The most important filing for fundamental investors. Filed once per year, the 10-K contains audited financial statements, revenue and earnings trends, debt obligations, risk factors, and management's own assessment of the business. Reading the risk factors section and comparing year-over-year financials can reveal issues that don't show up in analyst summaries.

An unaudited financial update filed three times per year (the 10-K covers Q4). Investors use 10-Qs to track whether guidance is on pace, monitor changes in cash flow or inventory, and catch any mid-year shifts in business conditions before they become headline news.

Filed within four business days of a material event — earnings releases, merger announcements, executive departures, or major asset sales. Because 8-Ks are filed before media coverage catches up, they are often the fastest way to get unfiltered information directly from the company on market-moving events.

Filed within two business days whenever an executive or director buys or sells company stock. Insider purchases — especially large or clustered buys — are often interpreted as a signal of management confidence. Insider selling is more ambiguous but worth monitoring for patterns, particularly around lock-up expirations or ahead of major announcements.


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This page (NASDAQ:VICR) was last updated on 5/20/2026 by MarketBeat.com Staff.
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