QUANTUM COMPUTING INC (QUBT)
Institutional ownership reported to the SEC as of Q2 2026, across 26 quarters.
311
Reporting holders
$1.3B
Reported value
42.8%
Of shares outstanding
25.9%
Held as options
+22
Holder change
Institutions report 96,810,151 shares against 226,346,861 outstanding. Shares only - option lines are excluded, which is why this can be compared with the company at all. The count comes from the cover page of the company's own most recent report, so it is dated when that was filed rather than at quarter end.
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. | $172.0M | 17,733,975 | 0.00% | 8q | +9.9%+$15.5M |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | $94.6M | 1,172,886 | 0.01% | 20q | +70.5%+$39.1M |
| VANGUARD CAPITAL MANAGEMENT LLC | $85.8M | 8,848,881 | 0.00% | 2q | +1.0%+$839.9K |
| JANE STREET GROUP, LLC | $79.9M | options only | 0.01% | 7q | OPTIONS |
| Defiance ETFs, LLC | $66.3M | 7,033,410 | 0.90% | 3q | +56.5%+$23.9M |
| VANGUARD PORTFOLIO MANAGEMENT LLC | $63.7M | 6,566,582 | 0.00% | 2q | -2.1%-$1.4M |
| GEODE CAPITAL MANAGEMENT, LLC | $51.6M | 5,322,648 | 0.00% | 20q | +13.2%+$6.0M |
| STATE STREET CORP | $47.7M | 4,921,317 | 0.00% | 20q | +9.0%+$3.9M |
| CITADEL ADVISORS LLC | $40.1M | 138,628 | 0.00% | 11q | -83.9%-$208.8M |
| MORGAN STANLEY | $31.9M | 3,292,011 | 0.00% | 20q | +41.9%+$9.4M |
| NATIONAL BANK OF CANADA /FI/ | $27.9M | 1,458,236 | 0.02% | 6q | +948.0%+$25.2M |
| GOLDMAN SACHS GROUP INC | $26.2M | 789,243 | 0.00% | 7q | -13.1%-$3.9M |
| Marex Group Ltd | $22.3M | 2,302,359 | 0.09% | 7q | -48.7%-$21.2M |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | $22.1M | 2,272,533 | 0.03% | 6q | +3.1%+$671.8K |
| UBS Group AG | $19.8M | 2,045,200 | 0.00% | 20q | +55.4%+$7.1M |
| Bank of New York Mellon Corp | $19.2M | 1,975,697 | 0.00% | 6q | +93.2%+$9.2M |
| IMC-Chicago, LLC | $18.7M | options only | 0.00% | 7q | OPTIONS |
| BNP PARIBAS FINANCIAL MARKETS | $18.0M | 1,070,785 | 0.01% | 5q | +214.1%+$12.3M |
| NORTHERN TRUST CORP | $17.6M | 1,815,091 | 0.00% | 20q | +7.5%+$1.2M |
| CAPITAL FUND MANAGEMENT S.A. | $17.3M | 1,505,193 | 0.08% | 4q | -11.5%-$2.2M |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | $15.9M | 1,641,744 | 0.00% | 7q | +10.0%+$1.5M |
| Sixth Street Partners Management Company, L.P. | $15.9M | 1,641,744 | 0.00% | new | NEW |
| Mubadala Investment Co PJSC | $15.4M | 1,587,350 | 0.04% | 3q | HELD |
| SIMPLEX TRADING, LLC | $14.5M | 78,534 | 0.01% | 7q | -52.7%-$16.2M |
| GROUP ONE TRADING LLC | $14.0M | options only | 0.02% | 20q | OPTIONS |
| Clear Street Group Inc. | $13.9M | 1,427,999 | 0.04% | 4q | +69.6%+$5.7M |
| VAN ECK ASSOCIATES CORP | $12.8M | 1,317,352 | 0.01% | 5q | +35.6%+$3.4M |
| VANGUARD FIDUCIARY TRUST CO | $12.6M | 1,301,720 | 0.00% | 2q | -3.1%-$406.5K |
| Walleye Trading LLC | $11.6M | options only | 0.01% | 6q | OPTIONS |
| RAYMOND JAMES FINANCIAL INC | $10.1M | 1,037,659 | 0.00% | 7q | +31.4%+$2.4M |
| Parallax Volatility Advisers, L.P. | $9.8M | options only | 0.02% | 3q | OPTIONS |
| Pacific Heights Asset Management LLC | $9.7M | 1,000,000 | 0.31% | 5q | HELD |
| Focus Financial Network, Inc. | $8.8M | 911,635 | 0.27% | 7q | +402.6%+$7.1M |
| D. E. Shaw & Co., Inc. | $6.1M | 582,618 | 0.00% | 3q | -18.9%-$1.4M |
| Nuveen, LLC | $6.1M | 632,451 | 0.00% | 5q | HELD |
| Blackstone Inc. | $4.8M | 500,000 | 0.01% | 4q | HELD |
| PEAK6 LLC | $4.7M | 100,330 | 0.01% | 4q | +73.2%+$2.0M |
| MILLENNIUM MANAGEMENT LLC | $4.6M | 359,801 | 0.00% | 7q | +313.4%+$3.5M |
| ALGERT GLOBAL LLC | $4.3M | 445,251 | 0.05% | 5q | -29.0%-$1.8M |
| BARCLAYS PLC | $3.9M | 404,331 | 0.00% | 6q | +961.1%+$3.6M |
| Squarepoint Ops LLC | $3.9M | 402,727 | 0.00% | 6q | -70.2%-$9.2M |
| Swiss National Bank | $3.8M | 395,400 | 0.00% | 6q | -0.6%-$22.3K |
| LPL Financial LLC | $3.8M | 380,999 | 0.00% | 7q | +34.7%+$977.2K |
| BANK OF AMERICA CORP /DE/ | $3.8M | 387,812 | 0.00% | 12q | -11.8%-$504.0K |
| LANDSCAPE CAPITAL MANAGEMENT, L.L.C. | $3.7M | 381,046 | 0.24% | 3q | +484.1%+$3.1M |
| UNICOM Systems, Inc. | $3.5M | 362,279 | 0.23% | 7q | HELD |
| Point72 Asset Management, L.P. | $3.3M | options only | 0.00% | 3q | OPTIONS |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | $3.1M | 321,236 | 0.00% | 6q | +28.3%+$686.5K |
| Corient Private Wealth LP | $2.6M | 265,188 | 0.00% | 2q | +1063.8%+$2.4M |
| RHUMBLINE ADVISERS | $2.6M | 263,716 | 0.00% | 6q | +12.2%+$278.6K |
| Walleye Capital LLC | $2.5M | options only | 0.01% | 6q | OPTIONS |
| Crawford Fund Management, LLC | $2.5M | options only | 0.38% | 7q | OPTIONS |
| CITIGROUP INC | $2.5M | 253,484 | 0.00% | 7q | +259.6%+$1.8M |
| WELLS FARGO & COMPANY/MN | $2.4M | 248,322 | 0.00% | 7q | -10.0%-$267.1K |
| DEUTSCHE BANK AG\ | $2.0M | 208,776 | 0.00% | 6q | +20.3%+$341.3K |
| JPMORGAN CHASE & CO | $1.9M | 184,303 | 0.00% | 11q | +5.2%+$95.1K |
| TWO SIGMA INVESTMENTS, LP | $1.8M | 186,284 | 0.00% | 2q | -51.5%-$1.9M |
| ROYAL BANK OF CANADA | $1.7M | 174,293 | 0.00% | 7q | -11.7%-$225.1K |
| Foundations Investment Advisors, LLC | $1.7M | 172,427 | 0.02% | 6q | -9.2%-$168.7K |
| SLT Holdings LLC | $1.7M | 170,550 | 1.03% | 6q | -9.3%-$169.8K |
| Headlands Technologies LLC | $1.5M | 154,901 | 0.16% | 2q | -44.1%-$1.2M |
| ALLIANCEBERNSTEIN L.P. | $1.5M | 219,252 | 0.00% | 5q | +4.2%+$60.1K |
| Brevan Howard Capital Management LP | $1.5M | 153,629 | 0.01% | 2q | +736.3%+$1.3M |
| Quantinno Capital Management LP | $1.4M | 149,469 | 0.00% | 2q | +315.5%+$1.1M |
| SBI Securities Co., Ltd. | $1.4M | 143,253 | 0.03% | 7q | +1.9%+$25.3K |
| FIFTH THIRD BANCORP | $1.3M | 138,250 | 0.00% | 2q | +2.9%+$38.3K |
| VANGUARD ASSET MANAGEMENT, Ltd | $1.3M | 132,344 | 0.00% | 2q | HELD |
| Russell Investments Group, Ltd. | $1.3M | 129,531 | 0.00% | 6q | +53.4%+$437.4K |
| XTX Topco Ltd | $1.2M | 127,953 | 0.02% | 3q | +71.2%+$516.0K |
| LOS ANGELES CAPITAL MANAGEMENT LLC | $1.2M | 126,626 | 0.00% | 3q | -31.8%-$572.1K |
| AMERICAN CENTURY COMPANIES INC | $1.2M | 124,540 | 0.00% | new | NEW |
| Legal & General Group Plc | $1.2M | 121,161 | 0.00% | 6q | -26.5%-$424.1K |
| MetLife Investment Management, LLC | $1.2M | 121,021 | 0.01% | 5q | +6.9%+$75.6K |
| Invesco Ltd. | $1.1M | 110,135 | 0.00% | 5q | -15.2%-$191.3K |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | $1.0M | 104,732 | 0.00% | 6q | +9.3%+$86.7K |
| Moors & Cabot, Inc. | $1.0M | 103,585 | 0.04% | new | NEW |
| Yarbrough Capital, LLC | $960.8K | 99,056 | 0.03% | 6q | HELD |
| State of New Jersey Common Pension Fund D | $955.8K | 98,537 | 0.00% | new | NEW |
| Cetera Investment Advisers | $910.6K | 93,881 | 0.00% | 7q | -18.6%-$207.7K |
| Zurcher Kantonalbank (Zurich Cantonalbank) | $909.9K | 93,809 | 0.00% | 7q | +8.3%+$69.9K |
| Vident Advisory, LLC | $884.0K | 91,131 | 0.01% | 4q | +19.2%+$142.5K |
| Concurrent Investment Advisors, LLC | $876.2K | 90,328 | 0.01% | 5q | -30.8%-$389.9K |
| Jupiter Topco LLC | $852.3K | 87,818 | 0.00% | new | FIRST |
| STATE OF WISCONSIN INVESTMENT BOARD | $840.9K | 86,693 | 0.00% | 6q | HELD |
| Graham Capital Management, L.P. | $776.0K | 80,000 | 0.01% | new | NEW |
| Vontobel Holding Ltd. | $738.2K | 13,598 | 0.00% | 4q | -18.0%-$161.8K |
| Leonteq Securities AG | $706.3K | 72,815 | 0.02% | 5q | +32.0%+$171.3K |
| BANQUE PICTET & CIE SA | $698.4K | 72,000 | 0.00% | 4q | HELD |
| Vanguard Global Advisers, LLC | $695.1K | 71,662 | 0.00% | 2q | -4.1%-$29.7K |
| AMERIPRISE FINANCIAL INC | $695.1K | 71,659 | 0.00% | 7q | -37.2%-$412.4K |
| Rockefeller Capital Management L.P. | $682.5K | 70,366 | 0.00% | 5q | +11.7%+$71.6K |
| OSAIC HOLDINGS, INC. | $674.3K | 69,520 | 0.00% | 20q | +86.8%+$313.3K |
| COMMONWEALTH EQUITY SERVICES, LLC | $667.1K | 68,777 | 0.00% | 17q | +48.6%+$218.2K |
| VARCOV Co. | $627.2K | 64,663 | 0.24% | new | NEW |
| NEW YORK STATE COMMON RETIREMENT FUND | $616.0K | 63,500 | 0.00% | 5q | HELD |
| Hennion & Walsh Asset Management, Inc. | $613.4K | 63,236 | 0.02% | 3q | +24.4%+$120.4K |
| Creative Planning | $611.5K | 63,042 | 0.00% | 4q | +129.2%+$344.7K |
| Police & Firemen's Retirement System of New Jersey | $590.5K | 60,881 | 0.00% | 5q | +12.4%+$65.3K |
| Corecam Pte. Ltd. | $590.3K | 60,859 | 0.22% | 2q | +98.8%+$293.3K |
| Ameritas Advisory Services, LLC | $590.2K | 60,848 | 0.01% | 2q | +486.8%+$489.6K |
Showing the largest 100 of 322 reported holders.
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 | 311 | $1.3B | 96,810,151 | 65 | 114 | 63 | 25.9% |
| Q1 2026 | 289 | $715.6M | 87,419,087 | 48 | 96 | 72 | 16.7% |
| Q4 2025 | 285 | $1.2B | 94,360,776 | 71 | 122 | 50 | 17.6% |
| Q3 2025 | 254 | $2.2B | 88,569,699 | 74 | 94 | 45 | 26.3% |
| Q2 2025 | 218 | $1.4B | 54,945,007 | 82 | 81 | 24 | 26.2% |
| Q1 2025 | 165 | $285.9M | 21,896,787 | 76 | 44 | 19 | 38.7% |
| Q4 2024 | 129 | $609.5M | 21,842,808 | 101 | 12 | 5 | 41.5% |
| Q3 2024 | 30 | $2.7M | 3,916,010 | 4 | 7 | 6 | 3.6% |
| Q2 2024 | 44 | $2.1M | 4,042,871 | 9 | 12 | 8 | 1.8% |
| Q1 2024 | 41 | $3.6M | 3,554,015 | 11 | 8 | 6 | 1.2% |
| Q4 2023 | 38 | $2.8M | 2,993,815 | 6 | 8 | 4 | 1.6% |
| Q3 2023 | 37 | $3.1M | 2,720,914 | 8 | 4 | 7 | 5.9% |
| Q2 2023 | 35 | $3.3M | 2,711,960 | 7 | 8 | 3 | 4.0% |
| Q1 2023 | 32 | $2.9M | 2,168,136 | 3 | 5 | 5 | 3.7% |
| Q4 2022 | 30 | $2.8M | 1,767,271 | 5 | 1 | 6 | 4.2% |
| Q3 2022 | 33 | $5.4M | 2,005,292 | 6 | 9 | 2 | 7.1% |
| Q2 2022 | 29 | $4.8M | 1,861,572 | 7 | 5 | 6 | 9.2% |
| Q1 2022 | 30 | $5.5M | 1,776,711 | 9 | 3 | 5 | 15.3% |
| Q4 2021 | 28 | $9.1M | 2,057,994 | 11 | 5 | 3 | 22.5% |
| Q3 2021 | 25 | $9.1M | 1,252,922 | 24 | 0 | 0 | 14.5% |
| Q2 2021 | 1 | $12.0K | 2,225 | 0 | 0 | 0 | 0.0% |
| Q1 2021 | 1 | $16.0K | 2,225 | 0 | 0 | 0 | 0.0% |
| Q4 2020 | 1 | $31.0K | 2,225 | 0 | 0 | 0 | 0.0% |
| Q3 2020 | 1 | $8.0K | 2,225 | 0 | 0 | 0 | 0.0% |
| Q2 2020 | 1 | $6.0K | 2,225 | 0 | 0 | 0 | 0.0% |
| Q1 2020 | 1 | $5.0K | 2,225 | 1 | 0 | 0 | 0.0% |