Institutional shares held 19.5 Million
39.9K calls
156K puts
Total value of holdings $1.74B
$3.55M calls
$13.9M puts
Market Cap $2.87B
32,225,600 Shares Out.
Institutional ownership 60.6%
# of Institutions 235


Latest Institutional Activity in VICR

Top Purchases

Q3 2025
Arrowstreet Capital, Limited Partnership Shares Held: 268K ($23.8M)
Q3 2025
Cibc Bancorp Usa Inc. Shares Held: 254K ($22.6M)
Q3 2025
Nuveen, LLC Shares Held: 285K ($25.4M)
Q3 2025
Morgan Stanley Shares Held: 445K ($39.6M)
Q3 2025
Goldman Sachs Group Inc Shares Held: 166K ($14.8M)

Top Sells

Q3 2025
Jpmorgan Chase & CO Shares Held: 4.13M ($368M)
Q3 2025
Millennium Management LLC Shares Held: 42.8K ($3.81M)
Q3 2025
Manatuck Hill Partners, LLC Shares Held: 29.1K ($2.59M)
Q3 2025
Needham Investment Management LLC Shares Held: 641K ($57.1M)
Q3 2025
Vanguard Group Inc Shares Held: 2.47M ($220M)

About VICR

Vicor Corporation, together with its subsidiaries, designs, develops, manufactures, and markets modular power components and power systems for converting electrical power in the United States, Europe, the Asia Pacific, and internationally. The company offers a range of brick-format DC-DC converters; complementary components; and input and output voltage, and output power products, as well as electrical and mechanical accessories. It also provides custom power systems solutions. The company serves independent manufacturers of electronic devices, original equipment manufacturers, and their contract manufacturers in the aerospace and aviation, defense electronics, industrial automation and equipment, instrumentation, test equipment, solid state lighting, telecommunications and networking infrastructure, and vehicles and transportation markets. Vicor Corporation was incorporated in 1981 and is headquartered in Andover, Massachusetts.


Insider Transactions at VICR

Insider Transaction List

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Date Insider Transaction Ownership Type Shares Traded Value / Price
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Last 12 Months Summary

Buy / Acquisition
134K Shares
From 12 Insiders
Exercise of conversion of derivative security 134K shares
Sell / Disposition
171K Shares
From 13 Insiders
Open market or private sale 171K shares

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