VICR Vicor Corporation

NASDAQ
$197.91

Vicor Corporation (VICR) Institutional Ownership

What the institutions did with VICR last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.

Managers compared
551
filed both this quarter and last
Managers holding
509
+143 on the quarter
Buyers
347
185 opened new
Sellers
173
42 sold out entirely
Buyer share
66.7%
of managers who traded it
Breadth
+33.5
net buyers, as a share of those trading

Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.

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Ownership map

Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.

Cut Unchanged Added Color saturates at ±50%.

Largest holders

Manager Shares % of reported
BlackRock, Inc. 2.5M 11.2%
JPMORGAN CHASE & CO 2.4M 10.8%
PRICE T ROWE ASSOCIATES INC /MD/ 2.4M 10.8%
VANGUARD PORTFOLIO MANAGEMENT LLC 1.3M 5.8%
VANGUARD CAPITAL MANAGEMENT LLC 1.1M 5.1%
STATE STREET CORP 726.0K 3.3%
GEODE CAPITAL MANAGEMENT, LLC 587.3K 2.7%
JANE STREET GROUP, LLC 539.2K 2.5%
MANUFACTURERS LIFE INSURANCE COMPANY, THE 530.9K 2.4%
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 530.8K 2.4%
NEEDHAM INVESTMENT MANAGEMENT LLC 524.0K 2.4%
Driehaus Capital Management LLC 496.5K 2.3%
DIMENSIONAL FUND ADVISORS LP 493.3K 2.2%
AQR CAPITAL MANAGEMENT LLC 449.5K 2.0%
GOLDMAN SACHS GROUP INC 373.8K 1.7%
Invesco Ltd. 245.3K 1.1%
MORGAN STANLEY 230.8K 1.1%
ACADIAN ASSET MANAGEMENT LLC 202.1K 0.9%
NORTHERN TRUST CORP 192.9K 0.9%
UBS Group AG 156.9K 0.7%
CHARLES SCHWAB INVESTMENT MANAGEMENT INC 155.4K 0.7%
FIRST TRUST ADVISORS LP 154.6K 0.7%
VANGUARD FIDUCIARY TRUST CO 152.8K 0.7%
COLRAIN CAPITAL LLC 150.3K 0.7%
AWM Investment Company, Inc. 149.0K 0.7%

Largest changes

Manager Action Previous Current Change
PRICE T ROWE ASSOCIATES INC /MD/ Increased 1.9M 2.4M +479.9K
BlackRock, Inc. Reduced 2.9M 2.5M -423.4K
Driehaus Capital Management LLC Increased 189.5K 496.5K +307.0K
AQR CAPITAL MANAGEMENT LLC Increased 148.3K 449.5K +301.2K
JPMORGAN CHASE & CO Increased 2.1M 2.4M +263.5K
JANE STREET GROUP, LLC Increased 327.7K 539.2K +211.5K
MILLENNIUM MANAGEMENT LLC Reduced 221.9K 62.8K -159.1K
HERALD INVESTMENT MANAGEMENT Ltd Reduced 220.0K 77.1K -142.9K
AWM Investment Company, Inc. Reduced 288.2K 149.0K -139.2K
T. Rowe Price Investment Management, Inc. New 0 133.9K +133.9K
FMR LLC Reduced 165.3K 37.3K -128.1K
Invesco Ltd. Increased 126.5K 245.3K +118.9K
VANGUARD PORTFOLIO MANAGEMENT LLC Increased 1.2M 1.3M +118.0K
ACADIAN ASSET MANAGEMENT LLC Increased 85.3K 202.1K +116.8K
VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P. New 0 112.4K +112.4K
Qube Research & Technologies Ltd Sold Out 89.6K 0 -89.6K
VANGUARD CAPITAL MANAGEMENT LLC Increased 1.0M 1.1M +85.8K
STATE STREET CORP Reduced 811.6K 726.0K -85.6K
NORTHERN TRUST CORP Reduced 272.7K 192.9K -79.8K
JACOBS LEVY EQUITY MANAGEMENT, INC Reduced 102.5K 26.0K -76.5K
MORGAN STANLEY Reduced 306.9K 230.8K -76.1K
SUSQUEHANNA INTERNATIONAL GROUP, LLP Increased 60.1K 133.6K +73.6K
LOS ANGELES CAPITAL MANAGEMENT LLC Increased 6.3K 79.4K +73.1K
Ariose Capital Management Ltd Sold Out 72.8K 0 -72.8K
MANUFACTURERS LIFE INSURANCE COMPANY, THE Reduced 603.4K 530.9K -72.5K
UBS Group AG Increased 92.4K 156.9K +64.4K
HSBC HOLDINGS PLC Increased 7.9K 70.5K +62.7K
GF FUND MANAGEMENT CO. LTD. Reduced 115.2K 61.0K -54.3K
TUDOR INVESTMENT CORP ET AL Reduced 137.3K 83.7K -53.6K
COLRAIN CAPITAL LLC Reduced 201.6K 150.3K -51.4K
Empowered Funds, LLC Sold Out 51.1K 0 -51.1K
Russell Investments Group, Ltd. Increased 22.7K 72.6K +49.9K
SILVERCREST ASSET MANAGEMENT GROUP LLC Reduced 115.4K 67.8K -47.7K
RENAISSANCE TECHNOLOGIES LLC Sold Out 47.3K 0 -47.3K
Andar Capital Management HK Ltd Increased 55.0K 101.1K +46.1K
Trexquant Investment LP Increased 6.2K 48.1K +42.0K
HRT FINANCIAL LP Increased 83.9K 125.0K +41.0K
CHARLES SCHWAB INVESTMENT MANAGEMENT INC Reduced 194.5K 155.4K -39.0K
Tidal Investments LLC Increased 44.1K 82.9K +38.8K
ASHFORD CAPITAL MANAGEMENT INC Reduced 113.5K 74.9K -38.6K
RHUMBLINE ADVISERS Increased 67.8K 101.2K +33.4K
NATIXIS ADVISORS, LLC New 0 33.1K +33.1K
CITADEL ADVISORS LLC Reduced 46.4K 13.4K -33.0K
Arosa Capital Management LP Reduced 156.5K 125.0K -31.5K
SG Americas Securities, LLC Reduced 31.3K 1.4K -29.8K
CIBC WORLD MARKET INC. Reduced 73.1K 45.0K -28.1K
Universal- Beteiligungs- und Servicegesellschaft mbH Increased 30.7K 58.4K +27.7K
NATIXIS New 0 27.1K +27.1K
PINNACLE ASSOCIATES LTD Reduced 156.0K 130.5K -25.5K
Mariner, LLC Reduced 41.8K 16.6K -25.1K
Engineers Gate Manager LP Reduced 25.7K 994 -24.7K
NOMURA ASSET MANAGEMENT INTERNATIONAL INC. New 0 24.6K +24.6K
Jump Financial, LLC Sold Out 23.8K 0 -23.8K
Main Management ETF Advisors, LLC New 0 23.6K +23.6K
CAPITAL FUND MANAGEMENT S.A. Increased 15.6K 38.6K +23.0K
RAYMOND JAMES FINANCIAL INC Increased 56.5K 79.2K +22.7K
ALGERT GLOBAL LLC Increased 22.4K 44.9K +22.6K
AMERICAN CENTURY COMPANIES INC Reduced 27.9K 5.4K -22.5K
DEUTSCHE BANK AG\ Reduced 25.9K 4.0K -21.9K
PRUDENTIAL FINANCIAL INC Increased 28.4K 49.3K +20.9K

13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.