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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, Q3 2025

Institutional positions in Quantum Computing Inc. as of Sep 30, 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
259
+40 vs. Q2 2025
Shares held
90.2M
+34.5M (+62.0%) vs. Q2 2025
Total value
$1.66B
+$598.2M (+56.4%) vs. Q2 2025
New holders
79
104 more added
Sold out
39
46 more reduced

3 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 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 holdersQ3 2025: 259 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 heldQ3 2025: $1.66B
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, Q3 2025

Shares, value and share of portfolio for each institution holding Quantum Computing Inc.; share changes are against Q2 2025.

Institutions holding QUBT in Q3 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Vanguard Group Inc12,197,605$224.6M0.00%+2,286,514+23.1%Added
BlackRock, Inc.10,436,289$192.1M0.00%+3,484,932+50.1%Added
Alyeska Investment Group, L.P.6,716,819$123.0M0.37%+6,716,819New
Citadel Advisors LLC6,405,805$117.9M0.09%+3,995,611+165.8%Added
Anson Funds Management LP5,373,455$98.9M11.03%+695,092+14.9%Added
Ghisallo Capital Management LLC4,030,092$74.2M2.43%+4,030,092New
Toroso Investments, LLC3,767,600$69.4M0.29%+3,767,600New
Geode Capital Management, LLC3,137,072$57.8M0.00%+506,547+19.3%Added
State Street Corp3,014,590$55.5M0.00%+532,566+21.5%Added
Polar Asset Management Partners Inc.2,686,727$48.6M0.99%+1,127,427+72.3%Added
Marex Group plc2,326,474$42.9M0.53%+1,973,867+559.8%Added
Clear Street Group Inc.2,089,104$38.5M0.19%+2,089,104New
Susquehanna International Group, LLP1,946,473$35.8M0.05%+755,649+63.5%Added
Penserra Capital Management LLC1,638,054$30.2M0.36%+618,594+60.7%Added
BNP Paribas Arbitrage, SA1,587,265$29.2M0.02%+999,776+170.2%Added
Morgan Stanley1,508,463$27.8M0.00%+636,917+73.1%Added
Blackstone Group Inc.1,343,364$24.7M0.11%+1,343,364New
UBS Group AG1,263,819$23.3M0.00%+570,801+82.4%Added
Northern Trust Corp1,203,846$22.2M0.00%+250,761+26.3%Added
Charles Schwab Investment Management Inc1,137,436$20.9M0.00%+796,218+233.3%Added
Focus Financial Network, Inc.1,117,431$20.6M0.73%+863,394+339.9%Added
Mirae Asset Global ETFs Holdings Ltd.1,011,004$18.6M0.03%+10,860+1.1%Added
JPMorgan Chase & Co933,925$17.2M0.00%+879,374+1,612.0%Added
Pacific Heights Asset Management LLC650,000$12.0M0.53%+250,000+62.5%Added
Goldman Sachs Group Inc500,340$9.21M0.00%−191,132−27.6%Reduced
Verition Fund Management LLC470,229$8.66M0.05%+155,991+49.6%Added
Nuveen, LLC412,811$7.60M0.00%+147,961+55.9%Added
Bank of New York Mellon Corp374,712$6.90M0.00%+59,108+18.7%Added
UNICOM Systems, Inc.362,279$6.67M0.66%−190,239−34.4%Reduced
Tairen Capital Ltd342,750$6.31M0.68%+342,750New
National Bank of Canada338,967$6.24M0.01%+261,418+337.1%Added
Swiss National Bank325,800$6.00M0.00%+74,200+29.5%Added
Capital Fund Management S.A.319,356$5.88M0.06%+319,356New
Y-Intercept (Hong Kong) Ltd295,455$5.44M0.13%+295,455New
LPL Financial LLC288,058$5.30M0.00%−16,905−5.5%Reduced
Van Eck Associates Corp277,844$5.12M0.00%+231,915+504.9%Added
Voleon Capital Management LP270,887$4.99M0.12%+270,887New
Squarepoint Ops LLC269,920$4.97M0.01%+231,473+602.1%Added
Barclays PLC249,940$4.60M0.00%+11,144+4.7%Added
Headlands Technologies LLC249,640$4.60M0.37%−18,659−7.0%Reduced
SG Americas Securities, LLC249,307$4.59M0.02%+230,580+1,231.3%Added
Tudor Investment Corp Et Al248,884$4.58M0.03%+248,884New
UBS Asset Management Americas Inc248,823$4.58M0.00%−97,104−28.1%Reduced
Raymond James Financial Inc245,363$4.52M0.00%+107,875+78.5%Added
Virtu Financial LLC231,990$4.27M0.24%+231,990New
First Trust Advisors LP231,346$4.26M0.00%−540,287−70.0%Reduced
Millennium Management LLC230,302$4.24M0.00%+117,972+105.0%Added
Group One Trading, L.P.222,239$4.09M0.12%+18,194+8.9%Added
Rhumbline Advisers191,636$3.53M0.00%+19,068+11.0%Added
Wells Fargo & Company183,808$3.38M0.00%+52,801+40.3%Added
Cetera Investment Advisers183,334$3.38M0.00%+166,097+963.6%Added
Legal & General Group Plc176,679$3.25M0.00%+22,023+14.2%Added
EAM Investors, LLC173,779$3.15M0.36%+173,779New
California State Teachers Retirement System155,743$2.87M0.00%+15,350+10.9%Added
Advisor Group Holdings, Inc.172,277$2.79M0.00%+46,670+37.2%Added
Alliancebernstein L.P.136,155$2.51M0.00%+9,832+7.8%Added
Bank of America Corp130,921$2.41M0.00%−757,721−85.3%Reduced
Victory Capital Management Inc130,035$2.39M0.00%−20,644−13.7%Reduced
SBI Securities Co., Ltd.128,035$2.36M0.06%−901−0.7%Reduced
Deutsche Bank AG110,576$2.04M0.00%+27,647+33.3%Added
Algert Global LLC108,350$1.99M0.03%+59,220+120.5%Added
Concurrent Investment Advisors, LLC98,655$1.82M0.03%+46,315+88.5%Added
Price T Rowe Associates Inc97,389$1.79M0.00%+17,951+22.6%Added
State of Wisconsin Investment Board93,172$1.72M0.00%+2,102+2.3%Added
Invesco Ltd.79,733$1.47M0.00%−756,732−90.5%Reduced
MetLife Investment Management78,580$1.45M0.01%+9,344+13.5%Added
Mirae Asset Securities (USA) Inc.76,908$1.42M0.06%−532,986−87.4%Reduced
Royal Bank of Canada75,066$1.38M0.00%−124,862−62.5%Reduced
Janus Henderson Group PLC72,818$1.34M0.00%+20,618+39.5%Added
Banque Pictet & Cie SA72,000$1.33M0.01%+72,000New
Cambridge Investment Research Advisors, Inc.71,156$1.31M0.00%+30,039+73.1%Added
Manufacturers Life Insurance Company, The71,152$1.31M0.00%+7,057+11.0%Added
Main Management ETF Advisors, LLC65,100$1.20M0.04%+65,100New
SPX Equities Gestao de Recursos Ltda64,000$1.18M0.10%+64,000New
Walleye Capital LLC51,177$942.2K0.01%+51,177New
Rockefeller Capital Management L.P.51,053$939.9K0.00%+10,127+24.7%Added
Cary Street Partners Financial LLC50,794$935.1K0.02%+50,794New
Arizona State Retirement System49,698$914.9K0.00%+15,667+46.0%Added
Franklin Resources Inc47,530$875.0K0.00%+47,530New
Jones Financial Companies LLLP42,216$850.4K0.00%+9,457+28.9%Added
Vident Advisory, LLC45,874$844.5K0.01%+45,874New
Ieq Capital, LLC45,522$838.1K0.00%00.0%Unchanged
Zurcher Kantonalbank (Zurich Cantonalbank)44,732$823.5K0.00%+14,699+48.9%Added
Commonwealth Equity Services, LLC44,477$819.0K0.00%−5,343−10.7%Reduced
Colony Group, LLC43,687$804.3K0.00%+43,687New
New York State Common Retirement Fund42,700$786.1K0.00%+6,200+17.0%Added
Hussman Strategic Advisors, Inc.42,000$773.2K0.17%00.0%Unchanged
Russell Investments Group, Ltd.41,831$770.1K0.00%+41,031+5,128.9%Added
FMR LLC41,607$766.0K0.00%−4,454−9.7%Reduced
Two Sigma Investments, LP40,705$749.4K0.00%+1,001+2.5%Added
Envestnet Asset Management Inc40,145$739.1K0.00%+71+0.2%Added
Veracity Capital LLC40,088$738.0K0.24%+2,932+7.9%Added
Quest Partners LLC39,698$730.8K0.05%+6,523+19.7%Added
Intrua Financial, LLC39,140$720.6K0.08%−7,265−15.7%Reduced
Cantor Fitzgerald, L. P.38,276$704.7K0.01%+38,276New
KLP Kapitalforvaltning AS37,800$695.9K0.00%+10,600+39.0%Added
Police & Firemen's Retirement System of New Jersey37,222$685.3K0.01%+11,119+42.6%Added
Comerica Bank36,813$677.7K0.00%00.0%Unchanged
Intech Investment Management LLC35,637$656.1K0.01%−25,364−41.6%Reduced
Ameriprise Financial Inc35,595$655.3K0.00%−595,117−94.4%Reduced