Vicor Corp

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Vicor Corp
TickerVICR
CIK #0000751978
CUSIP925815102
SectorManufacturing - Electronic Components, Nec
Address25 Frontage Road, Andover, MA 01810
Source [EDGAR]
CIK Filing 2011 - 2025
[0000751978] 10-K
[0000751978] 10-Q
[0000751978] 3
[0000751978] 4
[0000751978] 5
[0000751978] 8-K
[0000751978] D
[0000751978] SC 13G
Form 13D/13G Filer Form 13D/13G Subject Filed % Owned
JPMorgan Chase & Co Vicor Corp [2024-10-15] 0.8
Capital International Investors Vicor Corp [2023-02-13] 5.1
Vanguard Group Inc Vicor Corp [2019-02-12] 7.44
Ashford Capital Management Inc Vicor Corp [2015-02-12] 5.09
BlackRock Inc Vicor Corp [2013-01-30] 5.21
Form 3/4/5 Filer 2011 - 2025
Vicor Corp
Anderson Samuel J
D'Amico Andrew
Davies Philip D
Eichten Estia J
McNamara Michael
Shen Zheng John
Lavie Zmira
Tuozzolo Claudio
Carlson Jason
Schmidt James F
Vinciarelli Patrizio
Crilly Sean
Grava Nancy L
Fendelet Quentin A.
Gendron Robert
Doyle Alvaro
Gusinov Alex
Morrison Kemble D
Ansour Michael
Nagel Richard J Jr
Simms James A
Jeffery Joseph A
Henderson H Allen
Russell Robert F
Kelleher Barry
Griffin Liam
Riddiford David T
Richardson Douglas
Zengilowski Richard E
Form 13F Holdings
Firm Period DFND Voting Shares
JPMorgan Chase & Co [2025-06-30] DFND 2,461,360 4,450,039
BlackRock, Inc. [2025-06-30] SOLE 3,362,098 3,423,760
Vanguard Group Inc [2025-06-30] SOLE 0 2,469,266
State Street Corp [2025-06-30] DFND 786,614 848,350
Needham Investment Management LLC [2025-06-30] DFND 690,500 690,500
Geode Capital Management LLC [2025-06-30] DFND 570,078 570,078
Dimensional Fund Advisors LP [2025-06-30] SOLE 482,983 517,228
AWM Investment Company Inc [2025-06-30] SOLE 333,210 333,210
Morgan Stanley [2025-06-30] DFND 295,406 327,930
Pinnacle Associates Ltd [2025-06-30] SOLE 0 271,404
Citadel Advisors LLC [2025-06-30] DFND 243,386 243,386
Ashford Capital Management Inc [2025-06-30] SOLE 231,462 231,462
Colrain Capital LLC [2025-06-30] SOLE 230,200 230,200
Herald Investment Management Ltd [2025-06-30] SOLE 230,000 230,000
Northern Trust Corp [2025-06-30] DFND 228,348 228,743
Millennium Management LLC [2025-06-30] SOLE 219,878 219,878
Charles Schwab Investment Management Inc [2025-06-30] SOLE 214,047 214,060
Susquehanna International Group LLP [2025-06-30] OTR 48,584 168,784
Nuveen, LLC [2025-06-30] DFND 160,239 165,705
Jane Street Group LLC [2025-06-30] DFND 160,230 165,130
FMR LLC [2025-06-30] DFND 148,095 148,719
Bank of New York Mellon Corp [2025-06-30] DFND 132,367 141,329
Ameriprise Financial Inc [2025-06-30] DFND 0 134,170
Principal Financial Group Inc [2025-06-30] DFND 125,465 125,465
Bank of America Corp /DE/ [2025-06-30] DFND 4,284 109,813
Prescott Group Capital Management LLC [2025-06-30] SOLE 101,096 101,096
Manatuck Hill Partners LLC [2025-06-30] SOLE 100,000 100,000
Bruce & Co Inc [2025-06-30] SOLE 90,000 90,000
First Trust Advisors LP [2025-06-30] SOLE 84,279 84,279
Public Sector Pension Investment Board [2025-06-30] SOLE 78,780 78,780
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