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Quantum Computing Inc.

QUBT
Exchange
Nasdaq
Industry
Services-Prepackaged Software
SEC CIK
0001758009

No open-market purchases or sales by Quantum Computing Inc. insiders were filed in the last 90 days; 313 institutions reported holding it in 13F filings for Q2 2026, worth $994.9M in total; no superinvestor holds it.

13F holders, Q4 2025

Institutional positions in Quantum Computing Inc. as of Dec 31, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
287
+33 vs. Q3 2025
Shares held
98.5M
+8.24M (+9.1%) vs. Q3 2025
Total value
$1.01B
−$648.4M (−39.1%) vs. Q3 2025
New holders
84
133 more added
Sold out
51
48 more reduced

5 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting QUBT on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ4 2025: 287 institutions
Q1 2021: 1 institutionQ2 2021: 1 institutionQ3 2021: 24 institutionsQ4 2021: 28 institutionsQ1 2022: 35 institutionsQ2 2022: 35 institutionsQ3 2022: 36 institutionsQ4 2022: 36 institutionsQ1 2023: 37 institutionsQ2 2023: 39 institutionsQ3 2023: 42 institutionsQ4 2023: 45 institutionsQ1 2024: 46 institutionsQ2 2024: 47 institutionsQ3 2024: 34 institutionsQ4 2024: 125 institutionsQ1 2025: 166 institutionsQ2 2025: 222 institutionsQ3 2025: 259 institutionsQ4 2025: 287 institutionsQ1 2026: 296 institutionsQ2 2026: 313 institutions
Value heldQ4 2025: $1.01B
Q1 2021: $16.0KQ2 2021: $12.0KQ3 2021: $7.80MQ4 2021: $6.54MQ1 2022: $4.64MQ2 2022: $4.36MQ3 2022: $5.04MQ4 2022: $3.10MQ1 2023: $2.92MQ2 2023: $3.46MQ3 2023: $3.15MQ4 2023: $2.93MQ1 2024: $3.67MQ2 2024: $2.05MQ3 2024: $2.61MQ4 2024: $359.6MQ1 2025: $179.2MQ2 2025: $1.06BQ3 2025: $1.66BQ4 2025: $1.01BQ1 2026: $637.2MQ2 2026: $994.9M
Institutions holding QUBT and their total value by quarter
QuarterHoldersValue
Q2 2026313$994.9M
Q1 2026296$637.2M
Q4 2025287$1.01B
Q3 2025259$1.66B
Q2 2025222$1.06B
Q1 2025166$179.2M
Q4 2024125$359.6M
Q3 202434$2.61M
Q2 202447$2.05M
Q1 202446$3.67M
Q4 202345$2.93M
Q3 202342$3.15M
Q2 202339$3.46M
Q1 202337$2.92M
Q4 202236$3.10M
Q3 202236$5.04M
Q2 202235$4.36M
Q1 202235$4.64M
Q4 202128$6.54M
Q3 202124$7.80M
Q2 20211$12.0K
Q1 20211$16.0K

Institutions, Q4 2025

Shares, value and share of portfolio for each institution holding Quantum Computing Inc.; share changes are against Q3 2025.

Institutions holding QUBT in Q4 2025
InstitutionSharesValue% of portfolioChange in sharesAction
New York State Common Retirement Fund63,600$652.5K0.00%+20,900+48.9%Added
Main Management ETF Advisors, LLC65,772$675.0K0.02%+672+1.0%Added
Zurcher Kantonalbank (Zurich Cantonalbank)68,484$702.6K0.00%+23,752+53.1%Added
VARCOV Co.69,135$709.3K0.28%+69,135New
Virtu Financial LLC69,374$712.0K0.03%−162,616−70.1%Reduced
Bouvel Investment Partners, LLC69,759$715.7K0.21%+69,759New
Banque Pictet & Cie SA72,000$738.7K0.01%00.0%Unchanged
Centiva Capital, LP72,910$748.1K0.05%+72,910New
Flow Traders U.S. LLC76,744$787.0K0.03%+76,744New
Cambridge Investment Research Advisors, Inc.78,838$809.0K0.00%+7,682+10.8%Added
Dark Forest Capital Management LP81,575$837.0K0.04%+81,575New
Russell Investments Group, Ltd.82,090$842.2K0.00%+40,259+96.2%Added
Walleye Trading LLC85,006$872.2K0.01%+85,006New
Modera Wealth Management, LLC85,726$879.5K0.01%+85,726New
Janus Henderson Group PLC87,818$901.5K0.00%+15,000+20.6%Added
Royal Bank of Canada88,933$913.0K0.00%+13,867+18.5%Added
Invesco Ltd.96,557$990.7K0.00%+16,824+21.1%Added
Yarbrough Capital, LLC99,056$1.02M0.03%+81,037+449.7%Added
Manufacturers Life Insurance Company, The101,118$1.04M0.00%+29,966+42.1%Added
MetLife Investment Management111,886$1.15M0.01%+33,306+42.4%Added
Concurrent Investment Advisors, LLC115,376$1.18M0.01%+16,721+16.9%Added
Cetera Investment Advisers117,331$1.20M0.00%−66,003−36.0%Reduced
State of Wisconsin Investment Board129,621$1.33M0.00%+36,449+39.1%Added
Comerica Bank134,300$1.38M0.01%+97,487+264.8%Added
Renaissance Technologies LLC135,223$1.39M0.00%+135,223New
Qsemble Capital Management, LP136,165$1.40M0.12%+122,235+877.5%Added
D. E. Shaw & Co., Inc.136,820$1.40M0.00%+136,820New
JPMorgan Chase & Co137,919$1.42M0.00%−796,006−85.2%Reduced
First Trust Advisors LP140,267$1.44M0.00%−91,079−39.4%Reduced
SBI Securities Co., Ltd.157,357$1.61M0.04%+29,322+22.9%Added
SG Americas Securities, LLC158,517$1.63M0.00%−90,790−36.4%Reduced
Advisor Group Holdings, Inc.159,022$1.63M0.00%−13,255−7.7%Reduced
Deutsche Bank AG162,216$1.66M0.00%+51,640+46.7%Added
SLT Holdings LLC169,300$1.74M1.16%+154,300+1,028.7%Added
Foundations Investment Advisors, LLC169,981$1.74M0.02%+154,867+1,024.7%Added
Price T Rowe Associates Inc184,772$1.90M0.00%+87,383+89.7%Added
California State Teachers Retirement System190,212$1.95M0.00%+34,469+22.1%Added
IMC-Chicago, LLC195,908$2.01M0.04%+195,908New
Victory Capital Management Inc201,877$2.07M0.00%+71,842+55.2%Added
Legal & General Group Plc206,163$2.12M0.00%+29,484+16.7%Added
Rhumbline Advisers227,345$2.33M0.00%+35,709+18.6%Added
Alliancebernstein L.P.230,221$2.36M0.00%+94,066+69.1%Added
LPL Financial LLC270,196$2.77M0.00%−17,862−6.2%Reduced
Quadrature Capital Ltd289,378$2.97M0.03%+289,378New
National Bank of Canada291,501$2.99M0.00%−47,466−14.0%Reduced
Algert Global LLC312,129$3.20M0.05%+203,779+188.1%Added
UBS Asset Management Americas Inc351,280$3.60M0.00%+102,457+41.2%Added
UNICOM Systems, Inc.362,279$3.72M0.36%00.0%Unchanged
Wells Fargo & Company369,360$3.79M0.00%+185,552+100.9%Added
Focus Financial Network, Inc.387,222$3.97M0.14%−730,209−65.3%Reduced
Swiss National Bank397,700$4.08M0.00%+71,900+22.1%Added
Raymond James Financial Inc403,044$4.14M0.00%+157,681+64.3%Added
BNP Paribas Arbitrage, SA436,676$4.48M0.00%−1,150,589−72.5%Reduced
Landscape Capital Management, L.L.C.440,017$4.51M0.30%+440,017New
Alyeska Investment Group, L.P.500,000$5.13M0.01%−6,216,819−92.6%Reduced
Blackstone Group Inc.500,000$5.13M0.02%−843,364−62.8%Reduced
Bank of America Corp513,283$5.27M0.00%+382,362+292.1%Added
Group One Trading, L.P.535,245$5.49M0.16%+313,006+140.8%Added
Simplex Trading, LLC549,049$5.63M0.16%+549,049New
Van Eck Associates Corp569,509$5.84M0.00%+291,665+105.0%Added
Bank of New York Mellon Corp594,186$6.10M0.00%+219,474+58.6%Added
Jupiter Asset Management Ltd638,349$6.55M0.05%+638,349New
Goldman Sachs Group Inc780,821$8.01M0.00%+280,481+56.1%Added
Pacific Heights Asset Management LLC900,000$9.23M0.35%+250,000+38.5%Added
Squarepoint Ops LLC932,171$9.56M0.02%+662,251+245.4%Added
Nuveen, LLC957,585$9.82M0.00%+544,774+132.0%Added
Canada Pension Plan Investment Board1,026,700$10.5M0.01%+1,026,700New
Barclays PLC1,100,974$11.3M0.00%+851,034+340.5%Added
Ameriprise Financial Inc1,104,400$11.3M0.00%+1,068,805+3,002.7%Added
Clear Street Group Inc.1,149,865$11.8M0.06%−939,239−45.0%Reduced
Mirae Asset Global ETFs Holdings Ltd.1,228,168$12.6M0.02%+217,164+21.5%Added
Morgan Stanley1,329,581$13.6M0.00%−178,882−11.9%Reduced
UBS Group AG1,331,930$13.7M0.00%+68,111+5.4%Added
Jump Financial, LLC1,362,167$14.0M0.18%+1,362,167New
Mubadala Investment Co PJSC1,587,350$16.3M0.09%+1,587,350New
Charles Schwab Investment Management Inc1,622,701$16.6M0.00%+485,265+42.7%Added
Northern Trust Corp1,651,108$16.9M0.00%+447,262+37.2%Added
Susquehanna International Group, LLP2,231,454$22.9M0.03%+284,981+14.6%Added
Capital Fund Management S.A.2,253,241$23.1M0.22%+1,933,885+605.6%Added
Citadel Advisors LLC2,387,241$24.5M0.02%−4,018,564−62.7%Reduced
Penserra Capital Management LLC3,179,905$32.6M0.39%+1,541,851+94.1%Added
Defiance ETFs, LLC3,179,905$33.1M1.08%+3,179,905New
State Street Corp4,344,023$44.6M0.00%+1,329,433+44.1%Added
Geode Capital Management, LLC4,565,192$46.8M0.00%+1,428,120+45.5%Added
Marex Group plc8,272,153$84.9M0.92%+5,945,679+255.6%Added
BlackRock, Inc.16,647,012$170.8M0.00%+6,210,723+59.5%Added
Vanguard Group Inc16,841,423$172.8M0.00%+4,643,818+38.1%Added
Anson Funds Management LP0$00.00%−5,373,455−100.0%Sold out
Ghisallo Capital Management LLC0$00.00%−4,030,092−100.0%Sold out
Toroso Investments, LLC0$00.00%−3,767,600−100.0%Sold out
Polar Asset Management Partners Inc.0$00.00%−2,686,727−100.0%Sold out
Verition Fund Management LLC0$00.00%−470,229−100.0%Sold out
Tairen Capital Ltd0$00.00%−342,750−100.0%Sold out
Y-Intercept (Hong Kong) Ltd0$00.00%−295,455−100.0%Sold out
Voleon Capital Management LP0$00.00%−270,887−100.0%Sold out
Headlands Technologies LLC0$00.00%−249,640−100.0%Sold out
Tudor Investment Corp Et Al0$00.00%−248,884−100.0%Sold out
Millennium Management LLC0$00.00%−230,302−100.0%Sold out
EAM Investors, LLC0$00.00%−173,779−100.0%Sold out
Mirae Asset Securities (USA) Inc.0$00.00%−76,908−100.0%Sold out