QUBT Institutional Ownership & Shareholders
QUANTUM COMPUTING INC (QUBT) is currently held by 310 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $974.20M based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of QUBT tracked by InsiderSet, reporting ownership valued at approximately $172.02M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $112.26M, representing an estimated loss of -34.74% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 65% of the total disclosed QUBT value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Vanguard Capital Management Llc, Penserra Capital Management Llc, and several other long-term asset managers with concentrated positions in QUANTUM COMPUTING INC (QUBT).
This page ranks the largest institutional QUBT shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
310
Total Reported Value
$974.20M
Largest Holder
Blackrock, Inc.
Largest Position
$172.02M
Insider Transactions (90d)
1
Latest Filing Quarter
Q2 2026
New Institutional Positions
62
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.00% | 17,733,975 | $172,019,558 | $112,256,062 | -$59,763,496 | -34.74% | |
| Vanguard Capital Management Llc | 0.00% | 8,848,881 | $85,834,146 | $56,013,417 | -$29,820,729 | -34.74% | |
| Penserra Capital Management Llc | 0.52% | 6,979,349 | $67,699,000 | $44,179,279 | -$23,519,721 | -34.74% | |
| Defiance Etfs, Llc | 0.92% | 7,033,410 | $66,325,056 | $44,521,485 | -$21,803,571 | -32.87% | |
| Vanguard Portfolio Management Llc | 0.00% | 6,566,582 | $63,695,845 | $41,566,464 | -$22,129,381 | -34.74% | |
| Geode Capital Management, Llc | 0.00% | 5,322,648 | $51,638,896 | $33,692,362 | -$17,946,534 | -34.75% | |
| State Street Corp | 0.00% | 4,921,317 | $47,736,775 | $31,151,937 | -$16,584,838 | -34.74% | |
| Morgan Stanley | 0.00% | 3,292,011 | $31,932,512 | $20,838,430 | -$11,094,082 | -34.74% | |
| Marex Group Plc | 0.19% | 2,302,359 | $22,332,882 | $14,573,932 | -$7,758,950 | -34.74% | |
| Mirae Asset Global Etfs Holdings Ltd. | 0.03% | 2,272,533 | $22,052,327 | $14,385,134 | -$7,667,193 | -34.77% | |
| Ubs Group Ag | 0.00% | 2,045,200 | $19,838,440 | $12,946,116 | -$6,892,324 | -34.74% | |
| Bank Of New York Mellon Corp | 0.00% | 1,975,697 | $19,164,260 | $12,506,162 | -$6,658,098 | -34.74% | |
| Northern Trust Corp | 0.00% | 1,815,091 | $17,606,381 | $11,489,526 | -$6,116,855 | -34.74% | |
| Charles Schwab Investment Management Inc | 0.00% | 1,641,744 | $15,924,917 | $10,392,240 | -$5,532,677 | -34.74% | |
| Mubadala Investment Co Pjsc | 0.04% | 1,587,350 | $15,397,295 | $10,047,926 | -$5,349,370 | -34.74% | |
| Capital Fund Management S.A. | 0.10% | 1,505,193 | $14,600,372 | $9,527,872 | -$5,072,500 | -34.74% | |
| National Bank Of Canada | 0.01% | 1,458,236 | $14,144,886 | $9,230,634 | -$4,914,252 | -34.74% | |
| Clear Street Group Inc. | 0.04% | 1,427,999 | $13,851,590 | $9,039,234 | -$4,812,356 | -34.74% | |
| Van Eck Associates Corp | 0.01% | 1,317,352 | $12,778,314 | $8,338,838 | -$4,439,476 | -34.74% | |
| Vanguard Fiduciary Trust Co | 0.00% | 1,301,720 | $12,626,684 | $8,239,888 | -$4,386,796 | -34.74% | |
| Susquehanna International Group, Llp | 0.01% | 1,172,886 | $11,376,994 | $7,424,368 | -$3,952,626 | -34.74% | |
| Bnp Paribas Financial Markets | 0.01% | 1,070,785 | $10,386,614 | $6,778,069 | -$3,608,545 | -34.74% | |
| Raymond James Financial Inc | 0.00% | 1,037,659 | $10,065,292 | $6,568,381 | -$3,496,911 | -34.74% | |
| Pacific Heights Asset Management Llc | 0.27% | 1,000,000 | $8,450,000 | $6,330,000 | -$2,120,000 | -25.09% | |
| Goldman Sachs Group Inc | 0.00% | 789,243 | $7,655,654 | $4,995,908 | -$2,659,746 | -34.74% | |
| Nuveen, Llc | 0.00% | 632,451 | $6,134,774 | $4,003,415 | -$2,131,359 | -34.74% | |
| D. E. Shaw & Co., Inc. | 0.00% | 582,618 | $5,651,395 | $3,687,972 | -$1,963,423 | -34.74% | |
| Algert Global Llc | 0.05% | 445,251 | $4,318,935 | $2,818,439 | -$1,500,496 | -34.74% | |
| Barclays Plc | 0.00% | 404,331 | $3,922,011 | $2,559,415 | -$1,362,596 | -34.74% | |
| Squarepoint Ops Llc | 0.01% | 402,727 | $3,906,452 | $2,549,262 | -$1,357,190 | -34.74% | |
| Swiss National Bank | 0.00% | 395,400 | $3,835,380 | $2,502,882 | -$1,332,498 | -34.74% | |
| Bank Of America Corp | 0.00% | 387,812 | $3,761,777 | $2,454,850 | -$1,306,927 | -34.74% | |
| Landscape Capital Management, L.L.C. | 0.24% | 381,046 | $3,696,146 | $2,412,021 | -$1,284,125 | -34.74% | |
| Lpl Financial Llc | 0.00% | 380,999 | $3,695,690 | $2,411,724 | -$1,283,966 | -34.74% | |
| Millennium Management Llc | 0.00% | 359,801 | $3,490,070 | $2,277,540 | -$1,212,530 | -34.74% | |
| Unicom Systems, Inc. | 0.21% | 362,279 | $3,061,258 | $2,293,226 | -$768,032 | -25.09% | |
| Price T Rowe Associates Inc | 0.00% | 275,225 | $2,670,000 | $1,742,174 | -$927,826 | -34.75% | |
| Rhumbline Advisers | 0.00% | 263,716 | $2,558,035 | $1,669,322 | -$888,713 | -34.74% | |
| Citigroup Inc | 0.00% | 253,484 | $2,458,795 | $1,604,554 | -$854,241 | -34.74% | |
| Wells Fargo & Company/Mn | 0.00% | 248,322 | $2,408,724 | $1,571,878 | -$836,846 | -34.74% | |
| California State Teachers Retirement System | 0.00% | 224,011 | $2,172,907 | $1,417,990 | -$754,917 | -34.74% | |
| Deutsche Bank Ag\ | 0.00% | 208,776 | $2,025,127 | $1,321,552 | -$703,575 | -34.74% | |
| Jpmorgan Chase & Co | 0.00% | 184,303 | $1,920,541 | $1,166,638 | -$753,903 | -39.25% | |
| Two Sigma Investments, Lp | 0.00% | 186,284 | $1,806,955 | $1,179,178 | -$627,777 | -34.74% | |
| Ubs Am, A Distinct Business Unit Of Ubs Asset Management Americas Llc | 0.00% | 250,461 | $1,715,658 | $1,585,418 | -$130,240 | -7.59% | |
| Royal Bank Of Canada | 0.00% | 174,293 | $1,691,000 | $1,103,275 | -$587,725 | -34.76% | |
| Foundations Investment Advisors, Llc | 0.02% | 172,427 | $1,672,542 | $1,091,463 | -$581,079 | -34.74% | |
| Headlands Technologies Llc | 0.16% | 154,901 | $1,502,540 | $980,523 | -$522,017 | -34.74% | |
| Alliancebernstein L.P. | 0.00% | 219,252 | $1,501,876 | $1,387,865 | -$114,011 | -7.59% | |
| Brevan Howard Capital Management Lp | 0.02% | 153,629 | $1,490,201 | $972,472 | -$517,729 | -34.74% |
Frequently asked questions about QUBT
Who are the largest institutional holders of QUBT?
The largest institutional holders of QUBT reported in the latest SEC Form 13F filings include Blackrock, Inc., Vanguard Capital Management Llc, Penserra Capital Management Llc, Defiance Etfs, Llc, and Vanguard Portfolio Management Llc. InsiderSet ranks institutional holders by their latest reported QUBT position.
What is QUBT institutional ownership?
This page tracks QUBT positions reported by institutional investment managers through SEC Form 13F. QUANTUM COMPUTING INC (QUBT) institutional ownership on InsiderSet reflects disclosed 13F holdings among the managers we analyze, not every shareholder of the stock.
How many institutions own QUBT?
InsiderSet currently tracks 310 institutional managers reporting QUBT holdings in the latest available 13F data. This count reflects institutions included in the SEC Form 13F filings analyzed by InsiderSet and should not be interpreted as the total number of QUBT shareholders.
How much QUBT stock do institutions own?
Institutional investment managers disclosed approximately $974.20M in QUBT holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value.
When was QUBT institutional ownership last updated?
The latest QUBT institutional ownership data on InsiderSet is based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time institutional holdings.
Are institutional QUBT holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by institutional investment managers as of the end of the reporting quarter. An institution may have changed its QUBT position after the reporting date.
Are institutions buying or selling QUBT?
Institutional buying and selling can be analyzed by comparing QUBT positions across consecutive 13F reporting periods. InsiderSet's QUBT Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View QUBT ownership changes.
How has QUBT institutional ownership changed over time?
InsiderSet tracks QUBT institutional holdings across multiple 13F reporting periods, allowing investors to compare institutional holder counts, reported value, and reported shares over time.