DaveManuel.com · Institutional Ownership · Who Owns It
QUANTUM COMPUTING INC (QUBT)
Institutional ownership reported to the SEC as of Q2 2026, across 27 quarters.
324
Reporting holders
$1.3B
Reported value
45.5%
Of shares outstanding
13.3%
Calls
11.4%
Puts
+23
Holder change
Institutions report 102,955,806 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.
Calls and puts are the parts of reported value carried in derivative lines rather than shares, and they point in opposite directions: a manager holding calls is positioned for the security, one holding puts against it - or hedging shares they already own, which is why index funds carry so many. Most sites add the two together and report one figure, which averages away the only interesting part.
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 incl. $83.2M options CALL+PUT | 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 CALL+PUT | options only | 0.01% | 7q | OPTIONS |
| Penserra Capital Management LLC | $67.7M | 6,979,349 | 0.52% | 5q | +108.3%+$35.2M |
| 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 incl. $38.7M options CALL+PUT | 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 incl. $13.8M options PUT | 1,458,236 | 0.02% | 6q | +948.0%+$25.2M |
| GOLDMAN SACHS GROUP INC | $26.2M incl. $18.5M options PUT | 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 CALL+PUT | options only | 0.00% | 7q | OPTIONS |
| BNP PARIBAS FINANCIAL MARKETS | $18.0M incl. $7.6M options PUT | 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 incl. $2.7M options CALL+PUT | 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 |
| Mubadala Investment Co PJSC | $15.4M | 1,587,350 | 0.04% | 3q | HELD |
| SIMPLEX TRADING, LLC | $14.5M incl. $13.8M options CALL+PUT | 78,534 | 0.01% | 7q | -52.7%-$16.2M |
| GROUP ONE TRADING LLC | $14.0M CALL+PUT | 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 CALL+PUT | 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 PUT | 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 incl. $489.9K options CALL | 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 incl. $3.7M options CALL+PUT | 100,330 | 0.01% | 4q | +73.2%+$2.0M |
| MILLENNIUM MANAGEMENT LLC | $4.6M incl. $1.1M options CALL+PUT | 359,801 | 0.00% | 7q | +313.4%+$3.5M |
| ALGERT GLOBAL LLC | $4.3M | 445,251 | 0.05% | 5q | +42.0%+$1.3M |
| 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 incl. $98.0K options PUT | 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 CALL+PUT | 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 |
| PRICE T ROWE ASSOCIATES INC /MD/ | $2.7M | 275,225 | 0.00% | 6q | +21.0%+$463.9K |
| RHUMBLINE ADVISERS | $2.6M | 263,716 | 0.00% | 6q | +12.2%+$278.6K |
| Walleye Capital LLC | $2.5M CALL+PUT | options only | 0.01% | 6q | OPTIONS |
| Crawford Fund Management, LLC | $2.5M PUT | 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 | +80.0%+$1.1M |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | $2.2M | 224,011 | 0.00% | 6q | -11.1%-$271.5K |
| 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 |
| SG Americas Securities, LLC | $1.4M | 148,391 | 0.00% | 7q | +168.5%+$903.1K |
| 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 |
| Cambridge Investment Research Advisors, Inc. | $1.3M | 137,284 | 0.00% | 7q | +92.5%+$640.0K |
| VANGUARD ASSET MANAGEMENT, Ltd | $1.3M | 132,344 | 0.00% | 2q | HELD |
| Corient Private Wealth LP | $1.3M | 131,534 | 0.00% | 2q | +477.2%+$1.1M |
| 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 incl. $606.2K options CALL | 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 | +25.5%+$141.3K |
| 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 |
| Handelsbanken Fonder AB | $637.0K | 65,700 | 0.00% | 3q | +50.0%+$212.3K |
| VARCOV Co. | $627.2K | 64,663 | 0.24% | new | NEW |
| NEW YORK STATE COMMON RETIREMENT FUND | $616.0K | 63,500 | 0.00% | 5q | HELD |
Showing the largest 100 of 324 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 |
|---|---|---|---|---|---|---|---|
| Q3 2026 | 85 | $15.4M | 1,771,925 | 13 | 23 | 22 | 3.4% |
| Q2 2026 | 324 | $1.3B | 102,955,806 | 65 | 126 | 61 | 24.8% |
| Q1 2026 | 301 | $757.8M | 93,092,214 | 50 | 100 | 76 | 15.9% |
| Q4 2025 | 302 | $1.2B | 98,513,603 | 73 | 133 | 53 | 16.9% |
| Q3 2025 | 272 | $2.3B | 91,195,382 | 79 | 103 | 48 | 27.7% |
| Q2 2025 | 233 | $1.5B | 56,064,428 | 87 | 88 | 26 | 27.9% |
| Q1 2025 | 177 | $299.4M | 22,392,754 | 83 | 50 | 20 | 40.1% |
| Q4 2024 | 139 | $630.3M | 22,046,624 | 108 | 14 | 5 | 42.9% |
| Q3 2024 | 33 | $2.7M | 4,006,321 | 4 | 9 | 7 | 4.3% |
| Q2 2024 | 47 | $2.1M | 4,081,103 | 10 | 13 | 9 | 2.6% |
| Q1 2024 | 45 | $3.8M | 3,720,592 | 13 | 10 | 6 | 2.1% |
| Q4 2023 | 42 | $3.0M | 3,207,602 | 8 | 9 | 5 | 1.8% |
| Q3 2023 | 41 | $3.3M | 2,921,396 | 9 | 5 | 9 | 5.9% |
| Q2 2023 | 38 | $3.6M | 2,933,153 | 8 | 10 | 3 | 4.3% |
| Q1 2023 | 35 | $3.1M | 2,232,625 | 5 | 6 | 6 | 4.8% |
| Q4 2022 | 34 | $3.3M | 2,055,903 | 5 | 2 | 10 | 4.9% |
| Q3 2022 | 32 | $54.6M | 21,608,667 | 6 | 9 | 2 | 0.7% |
| Q2 2022 | 28 | $48.1M | 20,066,347 | 7 | 5 | 5 | 0.9% |
| Q1 2022 | 29 | $63.7M | 24,176,986 | 9 | 3 | 5 | 1.3% |
| Q4 2021 | 27 | $91.7M | 26,281,444 | 11 | 5 | 2 | 2.2% |
| Q3 2021 | 24 | $16.4M | 2,429,937 | 23 | 0 | 0 | 8.0% |
| 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% |