HolderBook

VICOR CORP (VICR)

Institutional ownership reported to the SEC as of Q2 2026, across 31 quarters.

480
Reporting holders
$7.8B
Reported value
9.1%
Held as options
+136
Holder change

Options share is the part of reported value carried in derivative lines rather than shares. A high figure means institutions are expressing a view on this security without owning much of it.

Holders

FilerValueShares Their book Held Change
BlackRock, Inc.$934.6M2,460,9290.01%8q-14.7%-$160.8M
JPMORGAN CHASE & CO$869.8M2,370,2200.05%31q+12.5%+$96.7M
VANGUARD PORTFOLIO MANAGEMENT LLC$486.2M1,280,1460.02%2q+10.2%+$44.8M
JANE STREET GROUP, LLC$475.5M539,1690.04%14q+64.5%+$186.5M
VANGUARD CAPITAL MANAGEMENT LLC$425.6M1,120,5380.01%2q+8.3%+$32.6M
STATE STREET CORP$275.7M726,0210.01%31q-10.5%-$32.5M
GEODE CAPITAL MANAGEMENT, LLC$223.1M587,3380.01%31q-2.5%-$5.8M
SUSQUEHANNA INTERNATIONAL GROUP, LLP$208.1M133,6410.02%31q+122.5%+$114.6M
MANUFACTURERS LIFE INSURANCE COMPANY, THE$201.6M530,8850.16%31q-12.0%-$27.5M
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP$201.6M530,8110.09%7q-1.0%-$2.1M
NEEDHAM INVESTMENT MANAGEMENT LLC$199.0M524,0005.98%31qHELD
Driehaus Capital Management LLC$188.6M496,5071.09%2q+162.1%+$116.6M
DIMENSIONAL FUND ADVISORS LP$187.3M493,3150.03%31qHELD
AQR CAPITAL MANAGEMENT LLC$168.0M449,5290.06%26q+203.1%+$112.5M
GOLDMAN SACHS GROUP INC$141.9M373,7570.01%31q-4.1%-$6.1M
Arosa Capital Management LP$100.6M125,00017.94%3q-20.1%-$25.4M
Invesco Ltd.$93.2M245,3340.01%31q+94.0%+$45.1M
MORGAN STANLEY$87.7M230,8080.00%35q-24.8%-$28.9M
CITADEL ADVISORS LLC$87.5M13,4340.01%31q-71.1%-$214.9M
NORTHERN TRUST CORP$73.3M192,9020.01%31q-29.3%-$30.3M
IMC-Chicago, LLC$72.4Moptions only0.02%3qOPTIONS
UBS Group AG$59.6M156,8550.01%31q+69.7%+$24.5M
CHARLES SCHWAB INVESTMENT MANAGEMENT INC$59.0M155,4350.01%31q-20.1%-$14.8M
Sixth Street Partners Management Company, L.P.$59.0M155,4350.01%newNEW
FIRST TRUST ADVISORS LP$58.7M154,6210.03%31q-5.7%-$3.5M
VANGUARD FIDUCIARY TRUST CO$58.0M152,7710.01%2q-3.5%-$2.1M
COLRAIN CAPITAL LLC$57.1M150,27719.32%10q-25.5%-$19.5M
AWM Investment Company, Inc.$56.6M148,9814.91%25q-48.3%-$52.9M
Bank of New York Mellon Corp$53.2M139,9780.01%31qHELD
PINNACLE ASSOCIATES LTD$49.6M130,4920.54%13q-16.3%-$9.7M
Nuveen, LLC$47.8M125,8820.01%6q+13.7%+$5.8M
PRINCIPAL FINANCIAL GROUP INC$44.8M117,8860.02%31q+6.9%+$2.9M
VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P.$42.7M112,3800.38%newNEW
Andar Capital Management HK Ltd$38.5M38,496,85817.18%3q+69894.3%+$38.4M
RHUMBLINE ADVISERS$38.4M101,1780.03%31q+49.2%+$12.7M
BANK OF AMERICA CORP /DE/$33.5M88,2490.00%31q-13.6%-$5.3M
TUDOR INVESTMENT CORP ET AL$33.2M83,6900.05%3q-39.1%-$21.3M
Tidal Investments LLC$31.5M82,8740.05%5q+87.8%+$14.7M
LOS ANGELES CAPITAL MANAGEMENT LLC$30.2M79,3960.11%3q+1153.1%+$27.7M
RAYMOND JAMES FINANCIAL INC$30.1M79,1940.01%7q+40.2%+$8.6M
HERALD INVESTMENT MANAGEMENT Ltd$29.3M77,1003.97%26q-65.0%-$54.2M
ASHFORD CAPITAL MANAGEMENT INC$28.5M74,9203.05%31q-34.0%-$14.7M
Russell Investments Group, Ltd.$27.4M72,5930.02%7q+220.0%+$18.8M
HSBC HOLDINGS PLC$26.4M70,5230.01%2q+796.8%+$23.4M
SILVERCREST ASSET MANAGEMENT GROUP LLC$25.7M67,7690.17%2q-41.3%-$18.1M
AMERIPRISE FINANCIAL INC$25.0M65,6960.01%31q-35.3%-$13.6M
SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC$24.7Moptions only0.43%newOPTIONS
MILLENNIUM MANAGEMENT LLC$24.1M62,7800.01%9q-71.7%-$61.0M
BNP PARIBAS FINANCIAL MARKETS$23.7M62,2910.01%31q-17.0%-$4.8M
GF FUND MANAGEMENT CO. LTD.$23.2M60,9720.28%2q-47.1%-$20.6M
Universal- Beteiligungs- und Servicegesellschaft mbH$22.2M58,3880.03%2q+90.5%+$10.5M
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC$19.4M51,1210.00%30q+29.8%+$4.5M
Alight Capital Management LP$19.0M50,0002.67%3q+25.0%+$3.8M
PRUDENTIAL FINANCIAL INC$18.7M49,2850.02%11q+73.6%+$7.9M
Trexquant Investment LP$18.3M48,1490.11%2q+682.7%+$15.9M
Bruce & Co., Inc.$18.2M48,0004.93%12q-26.2%-$6.5M
Swiss National Bank$17.9M47,2320.01%31q+3.5%+$607.6K
CIBC WORLD MARKET INC.$17.1M44,9870.03%3q-38.5%-$10.7M
ALGERT GLOBAL LLC$17.1M44,9300.20%6qHELD
CHAPIN DAVIS, INC.$16.8M44,2002.95%8qHELD
Point72 Asset Management, L.P.$16.6M10,0000.02%3q-65.6%-$31.7M
NEUBERGER BERMAN GROUP LLC$16.2M42,6550.01%2q+39.8%+$4.6M
WELLS FARGO & COMPANY/MN$15.7M41,4630.00%31q-44.0%-$12.4M
ALLIANCEBERNSTEIN L.P.$15.7M97,5250.01%31q-3.6%-$594.4K
Informed Momentum Co LLC$15.1M39,7291.34%3q-13.8%-$2.4M
FRANKLIN RESOURCES INC$14.9M39,2670.00%11q+47.7%+$4.8M
CAPITAL FUND MANAGEMENT S.A.$14.7M38,6150.06%2q+146.8%+$8.7M
Portolan Capital Management, LLC$14.5M38,0810.54%3q+42.8%+$4.3M
FMR LLC$14.1M37,2540.00%26q-77.5%-$48.6M
GatePass Capital, LLC$13.1M34,6044.99%7q-2.8%-$378.3K
Chicago Capital, LLC$12.8M33,8120.31%3q+63.2%+$5.0M
D. E. Shaw & Co., Inc.$12.3M8,1440.01%15q+307.2%+$9.3M
Legal & General Group Plc$11.7M30,8300.00%31qHELD
SEI INVESTMENTS CO$11.2M29,4980.01%6q+10.6%+$1.1M
Vident Advisory, LLC$10.5M27,5160.08%2q+49.9%+$3.5M
Weiss Asset Management LP$10.4M27,4390.11%2q-3.7%-$402.9K
NATIXIS$10.3M27,1160.04%newNEW
Walleye Trading LLC$10.2M7,3770.01%3qHELD
MERCER GLOBAL ADVISORS INC /ADV$10.0M26,3480.01%2q+414.3%+$8.1M
JACOBS LEVY EQUITY MANAGEMENT, INC$9.9M26,0030.04%7q-74.6%-$29.0M
IRONWOOD INVESTMENT MANAGEMENT LLC$9.7M25,5073.35%31q-17.4%-$2.0M
ExodusPoint Capital Management, LP$9.7M25,4930.06%3q+114.1%+$5.2M
KINGDON CAPITAL MANAGEMENT, L.L.C.$9.5M25,0000.97%2q+25.0%+$1.9M
SIMPLEX TRADING, LLC$9.4M5,2580.01%31q-55.1%-$11.5M
NOMURA ASSET MANAGEMENT INTERNATIONAL INC.$9.4M24,6230.01%newNEW
Bouvel Investment Partners, LLC$9.3M24,5252.11%12q-1.7%-$156.8K
Retirement Systems of Alabama$9.2M24,1670.03%2qHELD
TWO SIGMA INVESTMENTS, LP$8.4M22,2260.01%15q+89.1%+$4.0M
Creative Planning$8.4M22,1380.00%5q+52.0%+$2.9M
RICE HALL JAMES & ASSOCIATES, LLC$8.3M21,8930.40%27q-24.0%-$2.6M
LPL Financial LLC$8.2M21,5050.00%8q+8.7%+$657.0K
STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM$8.1M21,2500.01%31q+232.5%+$5.6M
VANGUARD ASSET MANAGEMENT, Ltd$7.5M19,6490.01%2q+7.6%+$524.9K
Bridgewater Associates, LP$7.0M18,4440.03%4q-44.5%-$5.6M
TD Asset Management Inc$6.4M16,8960.01%2q+224.9%+$4.4M
Mariner, LLC$6.3M16,6430.01%3q-60.1%-$9.5M
Man Group plc$6.2M16,2200.01%4q-54.8%-$7.5M
Massar Capital Management, LP$6.0M15,8680.59%newNEW
STATE OF WISCONSIN INVESTMENT BOARD$5.9M15,4310.01%2q+62.8%+$2.3M
CITIGROUP INC$5.7M12,0800.00%31q+23.7%+$1.1M

Five percent filings

Anyone crossing 5% of a company must say so within days - far sooner than the next quarterly holdings report. A 13D declares an intent to influence the company; a 13G is the passive version. See all activist filings →

FiledFormFiler % of class
2026-08-1413G/AT. Rowe Price Associates, Inc.7.0%
2026-07-3013G/ABlackRock, Inc.6.7%
2026-07-1613GJPMORGAN CHASE & CO6.9%

Quarter by quarter

Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.

QuarterHoldersValue SharesNewAdded TrimmedOptions
Q2 2026480$7.8B18,923,1381791381229.1%
Q1 2026344$3.1B18,862,97197111944.9%
Q4 2025273$2.2B19,886,0409772622.7%
Q3 2025192$1.2B23,261,3883557561.0%
Q2 2025187$872.3M18,898,1532653651.8%
Q1 2025197$946.9M19,847,5633665542.0%
Q4 2024181$951.0M19,396,9773049531.5%
Q3 2024161$952.9M22,338,9012549471.4%
Q2 2024154$686.4M20,509,1201947561.1%
Q1 2024162$840.3M21,650,9111950511.7%
Q4 2023183$979.0M21,479,0182957641.6%
Q3 2023206$1.2B20,655,7834457682.7%
Q2 2023179$1.1B20,844,9543062521.7%
Q1 2023172$855.8M18,029,1692163511.3%
Q4 2022153$852.2M15,683,9602654421.2%
Q3 2022205$1.1B18,470,0652586501.1%
Q2 2022196$1.0B18,731,7621981621.4%
Q1 2022229$1.3B17,819,0183786702.2%
Q4 2021247$2.3B17,539,4324785731.6%
Q3 2021218$2.4B17,854,5423455781.1%
Q2 2021194$1.8B16,850,7743159500.9%
Q1 2021193$1.4B16,152,9592661671.0%
Q4 2020199$1.5B15,757,5583747661.9%
Q3 2020180$1.3B15,791,1972066652.5%
Q2 2020187$1.2B15,688,9805060473.7%
Q1 2020149$618.0M13,449,3352853373.1%
Q4 2019138$635.9M13,373,4152340451.8%
Q3 2019132$346.0M11,447,6051552272.4%
Q2 2019135$370.4M11,610,0371553362.8%
Q1 2019138$376.9M11,594,6511643474.5%
Q4 2018149$483.2M12,455,6474122.6%