VICR
Vicor CorpCompany with tickers: VICR
CIK
751978
CUSIP
925815102
Shares Outstanding
33,863,689
Website
https://www.vicorpower.com
13F Activity (30d)
14 filings
10 filers
Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.
Holders: 368
Total Value: $3,325,303,660
Total Shares: 20,654,060
Showing 1–100
of 385 holdings by value
· page 1 of 4
Institutional Ownership Trend
25 quarters
Superinvestors Holding VICR
All superinvestors →Holder Concentration
Across 368 13F filers · Δ vs Dec 31, 2025Top Holder
14.0%
−5.2 pts
Top 5
42.2%
−12.8 pts
Top 10
55.6%
−10.7 pts
HHI
494
Broadly held−384
Quarterly Activity
vs Dec 31, 2025
New
107
Increased
123
Decreased
107
Sold Out
33
Unchanged
31
Holder count:
+74
Institutional value:
+44.8%
Shares held:
-1.4%
Top Buyers
vs Dec 31, 2025| Institution | Added | Now Holds | Open |
|---|---|---|---|
| Mega PRICE T ROWE ASSOCIATES INC /MD/ | +1,448,626 | 1,888,446 | |
| Mega JANE STREET GROUP, LLC | +378,115 | 474,915 | |
| Mega GOLDMAN SACHS GROUP INC | +242,783 | 389,767 | |
| Mega MILLENNIUM MANAGEMENT LLC | +218,678 | 221,867 | |
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | +214,811 | 402,560 |
Top Sellers
vs Dec 31, 2025| Institution | Sold | Now Holds | Open |
|---|---|---|---|
| Mega JPMORGAN CHASE & CO | −1,910,155 | 2,106,726 | |
| Mega BlackRock, Inc. | −687,708 | 2,884,375 | |
| Small ASHFORD CAPITAL MANAGEMENT INC | −240,321 | 113,535 | |
| Mega Nuveen, LLC | −123,478 | 110,666 | |
| Large MARSHALL WACE, LLP | −101,536 | 2,100 |
Top New Positions
vs Dec 31, 2025| Institution | Acquired | Value (USD) | Open |
|---|---|---|---|
| Mega VANGUARD CAPITAL MANAGEMENT LLC | 1,034,740 | $166,593,140 | |
| Large Driehaus Capital Management LLC | 189,463 | $30,503,543 | |
| Mega VANGUARD FIDUCIARY TRUST CO | 158,380 | $25,499,180 | |
| Large SILVERCREST ASSET MANAGEMENT GROUP LLC | 115,442 | $18,586,162 | |
| Mid GF FUND MANAGEMENT CO. LTD. | 115,245 | $18,554,445 |
Top Sold-Out Positions
vs Dec 31, 2025| Institution | Previously Held | Last Value (USD) | Open |
|---|---|---|---|
| Mega VANGUARD GROUP INC | 2,534,534 | $277,784,925 | |
| Small Manatuck Hill Partners, LLC | 25,600 | $2,805,760 | |
| Large PEAK6 LLC | 16,900 | $1,852,240 | |
| Mid DARK FOREST CAPITAL MANAGEMENT LP | 11,144 | $1,221,382 | |
| Mid Illinois Municipal Retirement Fund | 10,995 | $1,205,052 |
| Holder | Value (USD) | % of 13F | Shares | Type | Discretion | Filed | Open | |||
|---|---|---|---|---|---|---|---|---|---|---|
| Mega BlackRock, Inc. | $464,384,375 | 13.97% | 2,884,375 | Shares | Sole | 2026-05-13 | ||||
| Mega JPMORGAN CHASE & CO | $339,182,886 | 10.20% | 2,106,726 | Shares | Other | 2026-05-13 | ||||
| Mega PRICE T ROWE ASSOCIATES INC /MD/ | $304,039,806 | 9.14% | 1,888,446 | Shares | Defined | 2026-05-15 | ||||
| Mega VANGUARD CAPITAL MANAGEMENT LLC | $166,593,140 | 5.01% | 1,034,740 | Shares | Defined | 2026-05-15 | ||||
| Mega STATE STREET CORP | $130,670,337 | 3.93% | 811,617 | Shares | Defined | 2026-05-15 | ||||
| Mega MANUFACTURERS LIFE INSURANCE COMPANY, THE Insurance | $97,141,604 | 2.92% | 603,364 | Shares | Defined | 2026-05-15 | ||||
| Mega GEODE CAPITAL MANAGEMENT, LLC | $97,028,421 | 2.92% | 602,661 | Shares | Defined | 2026-05-15 | ||||
| Mega ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | $86,340,114 | 2.60% | 536,274 | Shares | Defined | 2026-05-14 | ||||
| Mid NEEDHAM INVESTMENT MANAGEMENT LLC | $84,042,000 | 2.53% | 522,000 | Shares | Defined | 2026-05-15 | ||||
| Mega DIMENSIONAL FUND ADVISORS LP | $79,480,870 | 2.39% | 493,670 | Shares | Sole | 2026-05-07 | ||||
| Mega GOLDMAN SACHS GROUP INC | $62,752,487 | 1.89% | 389,767 | Shares | Defined | 2026-05-15 | ||||
| Mega JANE STREET GROUP, LLC | $52,762,115 | 1.59% | 327,715 | Shares | Defined | 2026-05-12 | ||||
| Mega MORGAN STANLEY | $49,415,569 | 1.49% | 306,929 | Shares | Defined | 2026-05-15 | ||||
| Small AWM Investment Company, Inc. | $46,396,980 | 1.40% | 288,180 | Shares | Sole | 2026-05-15 | ||||
| Mega NORTHERN TRUST CORP Bank | $43,906,471 | 1.32% | 272,711 | Shares | Defined | 2026-05-14 | ||||
| Mega MILLENNIUM MANAGEMENT LLC | $35,720,587 | 1.07% | 221,867 | Shares | Sole | 2026-05-15 | ||||
| Small HERALD INVESTMENT MANAGEMENT Ltd | $35,420,000 | 1.07% | 220,000 | Shares | Sole | 2026-05-13 | ||||
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | $34,663,300 | 1.04% | 215,300 | Call | Other | 2026-05-15 | ||||
| Small COLRAIN CAPITAL LLC | $32,462,913 | 0.98% | 201,633 | Shares | Sole | 2026-05-12 | ||||
| Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $31,306,933 | 0.94% | 194,453 | Shares | Sole | 2026-05-15 | ||||
| Large Driehaus Capital Management LLC | $30,503,543 | 0.92% | 189,463 | Shares | Sole | 2026-05-15 | ||||
| Mega FMR LLC | $26,617,486 | 0.80% | 165,326 | Shares | Defined | 2026-05-15 | ||||
| Mega FIRST TRUST ADVISORS LP | $26,396,433 | 0.79% | 163,953 | Shares | Sole | 2026-05-13 | ||||
| Mega VANGUARD FIDUCIARY TRUST CO Bank | $25,499,180 | 0.77% | 158,380 | Shares | Defined | 2026-05-08 | ||||
| Small Arosa Capital Management LP | $25,196,500 | 0.76% | 156,500 | Shares | Sole | 2026-05-15 | ||||
| Mid PINNACLE ASSOCIATES LTD | $25,112,136 | 0.76% | 155,976 | Shares | Sole | 2026-04-22 | ||||
| Mega AQR CAPITAL MANAGEMENT LLC | $23,877,749 | 0.72% | 148,309 | Shares | Other | 2026-05-15 | ||||
| Mega Bank of New York Mellon Corp Bank | $22,586,046 | 0.68% | 140,286 | Shares | Defined | 2026-05-05 | ||||
| Large TUDOR INVESTMENT CORP ET AL | $22,107,876 | 0.66% | 137,316 | Shares | Defined | 2026-05-15 | ||||
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | $20,479,200 | 0.62% | 127,200 | Put | Other | 2026-05-15 | ||||
| Mega Invesco Ltd. | $20,361,026 | 0.61% | 126,466 | Shares | Defined | 2026-05-12 | ||||
| Large SILVERCREST ASSET MANAGEMENT GROUP LLC | $18,586,162 | 0.56% | 115,442 | Shares | Sole | 2026-05-15 | ||||
| Mid GF FUND MANAGEMENT CO. LTD. | $18,554,445 | 0.56% | 115,245 | Shares | Defined | 2026-04-15 | ||||
| Small ASHFORD CAPITAL MANAGEMENT INC | $18,279,135 | 0.55% | 113,535 | Shares | Sole | 2026-05-15 | ||||
| Mega Nuveen, LLC | $17,817,226 | 0.54% | 110,666 | Shares | Defined | 2026-04-30 | ||||
| Mega PRINCIPAL FINANCIAL GROUP INC | $17,746,869 | 0.53% | 110,229 | Shares | Defined | 2026-05-04 | ||||
| Large JACOBS LEVY EQUITY MANAGEMENT, INC | $16,497,831 | 0.50% | 102,471 | Shares | Sole | 2026-05-15 | ||||
| Mega BANK OF AMERICA CORP /DE/ Bank | $16,439,227 | 0.49% | 102,107 | Shares | Defined | 2026-05-18 | ||||
| Mega ALLIANCEBERNSTEIN L.P. | $16,295,937 | 0.49% | 101,217 | Shares | Defined | 2026-05-15 | ||||
| Small Arosa Capital Management LP | $16,100,000 | 0.48% | 100,000 | Call | Sole | 2026-05-15 | ||||
| Mega UBS Group AG | $14,880,103 | 0.45% | 92,423 | Shares | Defined | 2026-05-05 | ||||
| Large Qube Research & Technologies Ltd | $14,418,355 | 0.43% | 89,555 | Shares | Sole | 2026-05-15 | ||||
| Mega JANE STREET GROUP, LLC | $13,797,700 | 0.41% | 85,700 | Put | Defined | 2026-05-12 | ||||
| Large ACADIAN ASSET MANAGEMENT LLC | $13,732,495 | 0.41% | 85,295 | Shares | Defined | 2026-05-13 | ||||
| Large HRT FINANCIAL LP | $13,511,120 | 0.41% | 83,920 | Shares | Defined | 2026-05-14 | ||||
| Mega BNP PARIBAS ARBITRAGE, SA | $12,078,220 | 0.36% | 75,020 | Shares | Defined | 2026-05-12 | ||||
| Large CIBC WORLD MARKET INC. | $11,769,100 | 0.35% | 73,100 | Shares | Sole | 2026-05-14 | ||||
| Small Ariose Capital Management Ltd | $11,718,868 | 0.35% | 72,788 | Shares | Sole | 2026-04-28 | ||||
| Mega RHUMBLINE ADVISERS | $10,919,020 | 0.33% | 67,820 | Shares | Sole | 2026-05-12 | ||||
| Small Bruce & Co., Inc. | $10,465,000 | 0.31% | 65,000 | Shares | Sole | 2026-05-14 | ||||
| Mega JANE STREET GROUP, LLC | $9,901,500 | 0.30% | 61,500 | Call | Defined | 2026-05-12 | ||||
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | $9,669,660 | 0.29% | 60,060 | Shares | Other | 2026-05-15 | ||||
| Mega RAYMOND JAMES FINANCIAL INC | $9,091,348 | 0.27% | 56,468 | Shares | Defined | 2026-05-14 | ||||
| Small Andar Capital Management HK Ltd | $8,855,000 | 0.27% | 55,000 | Shares | Sole | 2026-05-08 | ||||
| Mega CITADEL ADVISORS LLC | $8,323,700 | 0.25% | 51,700 | Put | Defined | 2026-05-15 | ||||
| Large Empowered Funds, LLC | $8,225,651 | 0.25% | 51,091 | Shares | Other | 2026-05-15 | ||||
| Mega AMERIPRISE FINANCIAL INC | $8,168,818 | 0.25% | 50,738 | Shares | Defined | 2026-05-15 | ||||
| Large RENAISSANCE TECHNOLOGIES LLC | $7,615,300 | 0.23% | 47,300 | Shares | Sole | 2026-05-14 | ||||
| Mega CITADEL ADVISORS LLC | $7,476,035 | 0.22% | 46,435 | Shares | Defined | 2026-05-15 | ||||
| Small Informed Momentum Co LLC | $7,423,388 | 0.22% | 46,108 | Shares | Sole | 2026-05-13 | ||||
| Mega Swiss National Bank Bank | $7,346,752 | 0.22% | 45,632 | Shares | Sole | 2026-05-07 | ||||
| Small CHAPIN DAVIS, INC. | $7,116,200 | 0.21% | 44,200 | Shares | Sole | 2026-04-21 | ||||
| Small VESTOR CAPITAL, LLC | $7,110,243 | 0.21% | 44,163 | Shares | Sole | 2026-05-21 | ||||
| Large Tidal Investments LLC | $7,102,998 | 0.21% | 44,118 | Shares | Defined | 2026-05-15 | ||||
| Large Mariner, LLC | $6,723,360 | 0.20% | 41,760 | Shares | Sole | 2026-05-13 | ||||
| Small Alight Capital Management LP | $6,440,000 | 0.19% | 40,000 | Shares | Sole | 2026-05-15 | ||||
| Small KINGDON CAPITAL MANAGEMENT, L.L.C. | $6,440,000 | 0.19% | 40,000 | Call | Defined | 2026-05-15 | ||||
| Mega CITADEL ADVISORS LLC | $6,423,900 | 0.19% | 39,900 | Call | Defined | 2026-05-15 | ||||
| Mega UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | $6,341,468 | 0.19% | 39,388 | Shares | Defined | 2026-05-13 | ||||
| Mega WELLS FARGO & COMPANY/MN | $5,958,449 | 0.18% | 37,009 | Shares | Defined | 2026-05-11 | ||||
| Large Man Group plc | $5,772,816 | 0.17% | 35,856 | Shares | Defined | 2026-05-15 | ||||
| Small GatePass Capital, LLC | $5,731,600 | 0.17% | 35,600 | Shares | Sole | 2026-05-06 | ||||
| Large Bridgewater Associates, LP | $5,346,327 | 0.16% | 33,207 | Shares | Sole | 2026-05-15 | ||||
| Large BESSEMER GROUP INC | $5,048,799 | 0.15% | 31,359 | Shares | Defined | 2026-05-06 | ||||
| Large SG Americas Securities, LLC Broker-Dealer | $5,034,148 | 0.15% | 31,268 | Shares | Sole | 2026-04-16 | ||||
| Mega Legal & General Group Plc | $4,975,061 | 0.15% | 30,901 | Shares | Defined | 2026-05-08 | ||||
| Small IRONWOOD INVESTMENT MANAGEMENT LLC | $4,973,129 | 0.15% | 30,889 | Shares | Sole | 2026-05-15 | ||||
| Large Universal- Beteiligungs- und Servicegesellschaft mbH | $4,935,455 | 0.15% | 30,655 | Shares | Defined | 2026-05-11 | ||||
| Mega NEUBERGER BERMAN GROUP LLC | $4,911,949 | 0.15% | 30,509 | Shares | Defined | 2026-05-14 | ||||
| Mega JANUS HENDERSON GROUP PLC | $4,895,044 | 0.15% | 30,404 | Shares | Defined | 2026-05-18 | ||||
| Large Walleye Trading LLC | $4,878,300 | 0.15% | 30,300 | Call | Sole | 2026-05-11 | ||||
| Large Point72 Asset Management, L.P. | $4,679,787 | 0.14% | 29,067 | Shares | Defined | 2026-05-15 | ||||
| Mid RICE HALL JAMES & ASSOCIATES, LLC | $4,637,927 | 0.14% | 28,807 | Shares | Sole | 2026-05-15 | ||||
| Mid Weiss Asset Management LP | $4,588,500 | 0.14% | 28,500 | Shares | Defined | 2026-05-15 | ||||
| Large PRUDENTIAL FINANCIAL INC | $4,572,078 | 0.14% | 28,398 | Shares | Defined | 2026-05-13 | ||||
| Mega AMERICAN CENTURY COMPANIES INC | $4,485,138 | 0.13% | 27,858 | Shares | Defined | 2026-05-15 | ||||
| Large CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM Pension | $4,340,721 | 0.13% | 26,961 | Shares | Sole | 2026-05-18 | ||||
| Large SEI INVESTMENTS CO | $4,294,353 | 0.13% | 26,673 | Shares | Sole | 2026-05-13 | ||||
| Mid Portolan Capital Management, LLC | $4,293,870 | 0.13% | 26,670 | Shares | Sole | 2026-05-15 | ||||
| Mega FRANKLIN RESOURCES INC | $4,281,151 | 0.13% | 26,591 | Shares | Defined | 2026-05-13 | ||||
| Mega DEUTSCHE BANK AG\ Bank | $4,173,603 | 0.13% | 25,923 | Shares | Defined | 2026-05-06 | ||||
| Mid Engineers Gate Manager LP | $4,131,743 | 0.12% | 25,663 | Shares | Sole | 2026-05-15 | ||||
| Small Bouvel Investment Partners, LLC | $4,015,018 | 0.12% | 24,938 | Shares | Sole | 2026-04-10 | ||||
| Large Retirement Systems of Alabama Pension | $3,880,583 | 0.12% | 24,103 | Shares | Sole | 2026-04-24 | ||||
| Mid Jump Financial, LLC | $3,832,283 | 0.12% | 23,803 | Shares | Defined | 2026-05-14 | ||||
| Large MetLife Investment Management, LLC | $3,763,053 | 0.11% | 23,373 | Shares | Defined | 2026-05-14 | ||||
| Large NEW YORK STATE TEACHERS RETIREMENT SYSTEM Pension | $3,692,696 | 0.11% | 22,936 | Shares | Sole | 2026-04-27 | ||||
| Large Russell Investments Group, Ltd. | $3,652,607 | 0.11% | 22,687 | Shares | Defined | 2026-05-08 | ||||
| Mega VICTORY CAPITAL MANAGEMENT INC | $3,651,802 | 0.11% | 22,682 | Shares | Sole | 2026-05-15 | ||||
| Mid Y-Intercept (Hong Kong) Ltd | $3,627,169 | 0.11% | 22,529 | Shares | Sole | 2026-04-27 | ||||
| No holders match your search. | ||||||||||