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
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| BlackRock, Inc. | $934.6M | 2,460,929 | 0.01% | 8q | -14.7%-$160.8M |
| JPMORGAN CHASE & CO | $869.8M | 2,370,220 | 0.05% | 31q | +12.5%+$96.7M |
| VANGUARD PORTFOLIO MANAGEMENT LLC | $486.2M | 1,280,146 | 0.02% | 2q | +10.2%+$44.8M |
| JANE STREET GROUP, LLC | $475.5M | 539,169 | 0.04% | 14q | +64.5%+$186.5M |
| VANGUARD CAPITAL MANAGEMENT LLC | $425.6M | 1,120,538 | 0.01% | 2q | +8.3%+$32.6M |
| STATE STREET CORP | $275.7M | 726,021 | 0.01% | 31q | -10.5%-$32.5M |
| GEODE CAPITAL MANAGEMENT, LLC | $223.1M | 587,338 | 0.01% | 31q | -2.5%-$5.8M |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | $208.1M | 133,641 | 0.02% | 31q | +122.5%+$114.6M |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | $201.6M | 530,885 | 0.16% | 31q | -12.0%-$27.5M |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | $201.6M | 530,811 | 0.09% | 7q | -1.0%-$2.1M |
| NEEDHAM INVESTMENT MANAGEMENT LLC | $199.0M | 524,000 | 5.98% | 31q | HELD |
| Driehaus Capital Management LLC | $188.6M | 496,507 | 1.09% | 2q | +162.1%+$116.6M |
| DIMENSIONAL FUND ADVISORS LP | $187.3M | 493,315 | 0.03% | 31q | HELD |
| AQR CAPITAL MANAGEMENT LLC | $168.0M | 449,529 | 0.06% | 26q | +203.1%+$112.5M |
| GOLDMAN SACHS GROUP INC | $141.9M | 373,757 | 0.01% | 31q | -4.1%-$6.1M |
| Arosa Capital Management LP | $100.6M | 125,000 | 17.94% | 3q | -20.1%-$25.4M |
| Invesco Ltd. | $93.2M | 245,334 | 0.01% | 31q | +94.0%+$45.1M |
| MORGAN STANLEY | $87.7M | 230,808 | 0.00% | 35q | -24.8%-$28.9M |
| CITADEL ADVISORS LLC | $87.5M | 13,434 | 0.01% | 31q | -71.1%-$214.9M |
| NORTHERN TRUST CORP | $73.3M | 192,902 | 0.01% | 31q | -29.3%-$30.3M |
| IMC-Chicago, LLC | $72.4M | options only | 0.02% | 3q | OPTIONS |
| UBS Group AG | $59.6M | 156,855 | 0.01% | 31q | +69.7%+$24.5M |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $59.0M | 155,435 | 0.01% | 31q | -20.1%-$14.8M |
| Sixth Street Partners Management Company, L.P. | $59.0M | 155,435 | 0.01% | new | NEW |
| FIRST TRUST ADVISORS LP | $58.7M | 154,621 | 0.03% | 31q | -5.7%-$3.5M |
| VANGUARD FIDUCIARY TRUST CO | $58.0M | 152,771 | 0.01% | 2q | -3.5%-$2.1M |
| COLRAIN CAPITAL LLC | $57.1M | 150,277 | 19.32% | 10q | -25.5%-$19.5M |
| AWM Investment Company, Inc. | $56.6M | 148,981 | 4.91% | 25q | -48.3%-$52.9M |
| Bank of New York Mellon Corp | $53.2M | 139,978 | 0.01% | 31q | HELD |
| PINNACLE ASSOCIATES LTD | $49.6M | 130,492 | 0.54% | 13q | -16.3%-$9.7M |
| Nuveen, LLC | $47.8M | 125,882 | 0.01% | 6q | +13.7%+$5.8M |
| PRINCIPAL FINANCIAL GROUP INC | $44.8M | 117,886 | 0.02% | 31q | +6.9%+$2.9M |
| VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P. | $42.7M | 112,380 | 0.38% | new | NEW |
| Andar Capital Management HK Ltd | $38.5M | 38,496,858 | 17.18% | 3q | +69894.3%+$38.4M |
| RHUMBLINE ADVISERS | $38.4M | 101,178 | 0.03% | 31q | +49.2%+$12.7M |
| BANK OF AMERICA CORP /DE/ | $33.5M | 88,249 | 0.00% | 31q | -13.6%-$5.3M |
| TUDOR INVESTMENT CORP ET AL | $33.2M | 83,690 | 0.05% | 3q | -39.1%-$21.3M |
| Tidal Investments LLC | $31.5M | 82,874 | 0.05% | 5q | +87.8%+$14.7M |
| LOS ANGELES CAPITAL MANAGEMENT LLC | $30.2M | 79,396 | 0.11% | 3q | +1153.1%+$27.7M |
| RAYMOND JAMES FINANCIAL INC | $30.1M | 79,194 | 0.01% | 7q | +40.2%+$8.6M |
| HERALD INVESTMENT MANAGEMENT Ltd | $29.3M | 77,100 | 3.97% | 26q | -65.0%-$54.2M |
| ASHFORD CAPITAL MANAGEMENT INC | $28.5M | 74,920 | 3.05% | 31q | -34.0%-$14.7M |
| Russell Investments Group, Ltd. | $27.4M | 72,593 | 0.02% | 7q | +220.0%+$18.8M |
| HSBC HOLDINGS PLC | $26.4M | 70,523 | 0.01% | 2q | +796.8%+$23.4M |
| SILVERCREST ASSET MANAGEMENT GROUP LLC | $25.7M | 67,769 | 0.17% | 2q | -41.3%-$18.1M |
| AMERIPRISE FINANCIAL INC | $25.0M | 65,696 | 0.01% | 31q | -35.3%-$13.6M |
| SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC | $24.7M | options only | 0.43% | new | OPTIONS |
| MILLENNIUM MANAGEMENT LLC | $24.1M | 62,780 | 0.01% | 9q | -71.7%-$61.0M |
| BNP PARIBAS FINANCIAL MARKETS | $23.7M | 62,291 | 0.01% | 31q | -17.0%-$4.8M |
| GF FUND MANAGEMENT CO. LTD. | $23.2M | 60,972 | 0.28% | 2q | -47.1%-$20.6M |
| Universal- Beteiligungs- und Servicegesellschaft mbH | $22.2M | 58,388 | 0.03% | 2q | +90.5%+$10.5M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | $19.4M | 51,121 | 0.00% | 30q | +29.8%+$4.5M |
| Alight Capital Management LP | $19.0M | 50,000 | 2.67% | 3q | +25.0%+$3.8M |
| PRUDENTIAL FINANCIAL INC | $18.7M | 49,285 | 0.02% | 11q | +73.6%+$7.9M |
| Trexquant Investment LP | $18.3M | 48,149 | 0.11% | 2q | +682.7%+$15.9M |
| Bruce & Co., Inc. | $18.2M | 48,000 | 4.93% | 12q | -26.2%-$6.5M |
| Swiss National Bank | $17.9M | 47,232 | 0.01% | 31q | +3.5%+$607.6K |
| CIBC WORLD MARKET INC. | $17.1M | 44,987 | 0.03% | 3q | -38.5%-$10.7M |
| ALGERT GLOBAL LLC | $17.1M | 44,930 | 0.20% | 6q | HELD |
| CHAPIN DAVIS, INC. | $16.8M | 44,200 | 2.95% | 8q | HELD |
| Point72 Asset Management, L.P. | $16.6M | 10,000 | 0.02% | 3q | -65.6%-$31.7M |
| NEUBERGER BERMAN GROUP LLC | $16.2M | 42,655 | 0.01% | 2q | +39.8%+$4.6M |
| WELLS FARGO & COMPANY/MN | $15.7M | 41,463 | 0.00% | 31q | -44.0%-$12.4M |
| ALLIANCEBERNSTEIN L.P. | $15.7M | 97,525 | 0.01% | 31q | -3.6%-$594.4K |
| Informed Momentum Co LLC | $15.1M | 39,729 | 1.34% | 3q | -13.8%-$2.4M |
| FRANKLIN RESOURCES INC | $14.9M | 39,267 | 0.00% | 11q | +47.7%+$4.8M |
| CAPITAL FUND MANAGEMENT S.A. | $14.7M | 38,615 | 0.06% | 2q | +146.8%+$8.7M |
| Portolan Capital Management, LLC | $14.5M | 38,081 | 0.54% | 3q | +42.8%+$4.3M |
| FMR LLC | $14.1M | 37,254 | 0.00% | 26q | -77.5%-$48.6M |
| GatePass Capital, LLC | $13.1M | 34,604 | 4.99% | 7q | -2.8%-$378.3K |
| Chicago Capital, LLC | $12.8M | 33,812 | 0.31% | 3q | +63.2%+$5.0M |
| D. E. Shaw & Co., Inc. | $12.3M | 8,144 | 0.01% | 15q | +307.2%+$9.3M |
| Legal & General Group Plc | $11.7M | 30,830 | 0.00% | 31q | HELD |
| SEI INVESTMENTS CO | $11.2M | 29,498 | 0.01% | 6q | +10.6%+$1.1M |
| Vident Advisory, LLC | $10.5M | 27,516 | 0.08% | 2q | +49.9%+$3.5M |
| Weiss Asset Management LP | $10.4M | 27,439 | 0.11% | 2q | -3.7%-$402.9K |
| NATIXIS | $10.3M | 27,116 | 0.04% | new | NEW |
| Walleye Trading LLC | $10.2M | 7,377 | 0.01% | 3q | HELD |
| MERCER GLOBAL ADVISORS INC /ADV | $10.0M | 26,348 | 0.01% | 2q | +414.3%+$8.1M |
| JACOBS LEVY EQUITY MANAGEMENT, INC | $9.9M | 26,003 | 0.04% | 7q | -74.6%-$29.0M |
| IRONWOOD INVESTMENT MANAGEMENT LLC | $9.7M | 25,507 | 3.35% | 31q | -17.4%-$2.0M |
| ExodusPoint Capital Management, LP | $9.7M | 25,493 | 0.06% | 3q | +114.1%+$5.2M |
| KINGDON CAPITAL MANAGEMENT, L.L.C. | $9.5M | 25,000 | 0.97% | 2q | +25.0%+$1.9M |
| SIMPLEX TRADING, LLC | $9.4M | 5,258 | 0.01% | 31q | -55.1%-$11.5M |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. | $9.4M | 24,623 | 0.01% | new | NEW |
| Bouvel Investment Partners, LLC | $9.3M | 24,525 | 2.11% | 12q | -1.7%-$156.8K |
| Retirement Systems of Alabama | $9.2M | 24,167 | 0.03% | 2q | HELD |
| TWO SIGMA INVESTMENTS, LP | $8.4M | 22,226 | 0.01% | 15q | +89.1%+$4.0M |
| Creative Planning | $8.4M | 22,138 | 0.00% | 5q | +52.0%+$2.9M |
| RICE HALL JAMES & ASSOCIATES, LLC | $8.3M | 21,893 | 0.40% | 27q | -24.0%-$2.6M |
| LPL Financial LLC | $8.2M | 21,505 | 0.00% | 8q | +8.7%+$657.0K |
| STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM | $8.1M | 21,250 | 0.01% | 31q | +232.5%+$5.6M |
| VANGUARD ASSET MANAGEMENT, Ltd | $7.5M | 19,649 | 0.01% | 2q | +7.6%+$524.9K |
| Bridgewater Associates, LP | $7.0M | 18,444 | 0.03% | 4q | -44.5%-$5.6M |
| TD Asset Management Inc | $6.4M | 16,896 | 0.01% | 2q | +224.9%+$4.4M |
| Mariner, LLC | $6.3M | 16,643 | 0.01% | 3q | -60.1%-$9.5M |
| Man Group plc | $6.2M | 16,220 | 0.01% | 4q | -54.8%-$7.5M |
| Massar Capital Management, LP | $6.0M | 15,868 | 0.59% | new | NEW |
| STATE OF WISCONSIN INVESTMENT BOARD | $5.9M | 15,431 | 0.01% | 2q | +62.8%+$2.3M |
| CITIGROUP INC | $5.7M | 12,080 | 0.00% | 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 →
| Filed | Form | Filer | % of class |
|---|---|---|---|
| 2026-08-14 | 13G/A | T. Rowe Price Associates, Inc. | 7.0% |
| 2026-07-30 | 13G/A | BlackRock, Inc. | 6.7% |
| 2026-07-16 | 13G | JPMORGAN CHASE & CO | 6.9% |
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.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 480 | $7.8B | 18,923,138 | 179 | 138 | 122 | 9.1% |
| Q1 2026 | 344 | $3.1B | 18,862,971 | 97 | 111 | 94 | 4.9% |
| Q4 2025 | 273 | $2.2B | 19,886,040 | 97 | 72 | 62 | 2.7% |
| Q3 2025 | 192 | $1.2B | 23,261,388 | 35 | 57 | 56 | 1.0% |
| Q2 2025 | 187 | $872.3M | 18,898,153 | 26 | 53 | 65 | 1.8% |
| Q1 2025 | 197 | $946.9M | 19,847,563 | 36 | 65 | 54 | 2.0% |
| Q4 2024 | 181 | $951.0M | 19,396,977 | 30 | 49 | 53 | 1.5% |
| Q3 2024 | 161 | $952.9M | 22,338,901 | 25 | 49 | 47 | 1.4% |
| Q2 2024 | 154 | $686.4M | 20,509,120 | 19 | 47 | 56 | 1.1% |
| Q1 2024 | 162 | $840.3M | 21,650,911 | 19 | 50 | 51 | 1.7% |
| Q4 2023 | 183 | $979.0M | 21,479,018 | 29 | 57 | 64 | 1.6% |
| Q3 2023 | 206 | $1.2B | 20,655,783 | 44 | 57 | 68 | 2.7% |
| Q2 2023 | 179 | $1.1B | 20,844,954 | 30 | 62 | 52 | 1.7% |
| Q1 2023 | 172 | $855.8M | 18,029,169 | 21 | 63 | 51 | 1.3% |
| Q4 2022 | 153 | $852.2M | 15,683,960 | 26 | 54 | 42 | 1.2% |
| Q3 2022 | 205 | $1.1B | 18,470,065 | 25 | 86 | 50 | 1.1% |
| Q2 2022 | 196 | $1.0B | 18,731,762 | 19 | 81 | 62 | 1.4% |
| Q1 2022 | 229 | $1.3B | 17,819,018 | 37 | 86 | 70 | 2.2% |
| Q4 2021 | 247 | $2.3B | 17,539,432 | 47 | 85 | 73 | 1.6% |
| Q3 2021 | 218 | $2.4B | 17,854,542 | 34 | 55 | 78 | 1.1% |
| Q2 2021 | 194 | $1.8B | 16,850,774 | 31 | 59 | 50 | 0.9% |
| Q1 2021 | 193 | $1.4B | 16,152,959 | 26 | 61 | 67 | 1.0% |
| Q4 2020 | 199 | $1.5B | 15,757,558 | 37 | 47 | 66 | 1.9% |
| Q3 2020 | 180 | $1.3B | 15,791,197 | 20 | 66 | 65 | 2.5% |
| Q2 2020 | 187 | $1.2B | 15,688,980 | 50 | 60 | 47 | 3.7% |
| Q1 2020 | 149 | $618.0M | 13,449,335 | 28 | 53 | 37 | 3.1% |
| Q4 2019 | 138 | $635.9M | 13,373,415 | 23 | 40 | 45 | 1.8% |
| Q3 2019 | 132 | $346.0M | 11,447,605 | 15 | 52 | 27 | 2.4% |
| Q2 2019 | 135 | $370.4M | 11,610,037 | 15 | 53 | 36 | 2.8% |
| Q1 2019 | 138 | $376.9M | 11,594,651 | 16 | 43 | 47 | 4.5% |
| Q4 2018 | 149 | $483.2M | 12,455,647 | 4 | 1 | 2 | 2.6% |