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Arqit Quantum Inc.

ARQQ
Exchange
Nasdaq
Industry
Services-Prepackaged Software
SEC CIK
0001859690

In the last 90 days, Arqit Quantum Inc. insiders filed 0 open-market purchases and 7 sales; 64 institutions reported holding it in 13F filings for Q2 2026, worth $360.6M in total; no superinvestor holds it.

13F holders, Q2 2025

Institutional positions in Arqit Quantum Inc. as of Jun 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
42
+12 vs. Q1 2025
Shares held
1.21M
+709.3K (+143.0%) vs. Q1 2025
Total value
$44.6M
+$37.7M (+548.7%) vs. Q1 2025
New holders
19
8 more added
Sold out
7
8 more reduced

1 institution that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting ARQQ 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 holdersQ2 2025: 42 institutions
Q1 2021: 0 institutionsQ2 2021: 0 institutionsQ3 2021: 17 institutionsQ4 2021: 24 institutionsQ1 2022: 34 institutionsQ2 2022: 32 institutionsQ3 2022: 24 institutionsQ4 2022: 38 institutionsQ1 2023: 44 institutionsQ2 2023: 33 institutionsQ3 2023: 34 institutionsQ4 2023: 32 institutionsQ1 2024: 28 institutionsQ2 2024: 25 institutionsQ3 2024: 13 institutionsQ4 2024: 30 institutionsQ1 2025: 31 institutionsQ2 2025: 42 institutionsQ3 2025: 57 institutionsQ4 2025: 60 institutionsQ1 2026: 57 institutionsQ2 2026: 64 institutions
Value heldQ2 2025: $44.6M
Q1 2021: $0Q2 2021: $0Q3 2021: $16.5MQ4 2021: $24.1MQ1 2022: $50.4MQ2 2022: $16.2MQ3 2022: $20.7MQ4 2022: $64.1MQ1 2023: $22.1MQ2 2023: $17.8MQ3 2023: $10.7MQ4 2023: $3.37MQ1 2024: $6.88MQ2 2024: $925.5KQ3 2024: $257.0KQ4 2024: $12.3MQ1 2025: $6.88MQ2 2025: $44.6MQ3 2025: $71.8MQ4 2025: $82.3MQ1 2026: $53.3MQ2 2026: $360.6M
Institutions holding ARQQ and their total value by quarter
QuarterHoldersValue
Q2 202664$360.6M
Q1 202657$53.3M
Q4 202560$82.3M
Q3 202557$71.8M
Q2 202542$44.6M
Q1 202531$6.88M
Q4 202430$12.3M
Q3 202413$257.0K
Q2 202425$925.5K
Q1 202428$6.88M
Q4 202332$3.37M
Q3 202334$10.7M
Q2 202333$17.8M
Q1 202344$22.1M
Q4 202238$64.1M
Q3 202224$20.7M
Q2 202232$16.2M
Q1 202234$50.4M
Q4 202124$24.1M
Q3 202117$16.5M
Q2 20210$0
Q1 20210$0

Institutions, Q2 2025

Shares, value and share of portfolio for each institution holding Arqit Quantum Inc.; share changes are against Q1 2025.

Institutions holding ARQQ in Q2 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Natixis1$370.00%00.0%Unchanged
Healthcare of Ontario Pension Plan Trust Fund1$370.00%00.0%Unchanged
BNP Paribas Arbitrage, SA10$3700.00%−1,051−99.1%Reduced
MCF Advisors LLC10$3710.00%00.0%Unchanged
Heritage Wealth Advisors54$2.00K0.00%+54New
Parallel Advisors, LLC66$2.46K0.00%+66New
Tower Research Capital LLC (TRC)91$3.37K0.00%+28+44.4%Added
Federation des caisses Desjardins du Quebec97$3.59K0.00%+97New
US Bancorp100$3.70K0.00%00.0%Unchanged
West Financial Advisors, LLC100$3.70K0.00%+100New
Bank of America Corp200$7.41K0.00%+200New
Fifth Third Bancorp225$8.33K0.00%00.0%Unchanged
Simplex Trading, LLC301$11.0K0.00%−1,181−79.7%Reduced
Wells Fargo & Company475$17.6K0.00%+400+533.3%Added
Jones Financial Companies LLLP509$19.8K0.00%+479+1,596.7%Added
Signaturefd, LLC750$27.8K0.00%00.0%Unchanged
Albion Financial Group1,000$37.0K0.00%00.0%Unchanged
Allworth Financial LP1,000$37.0K0.00%+350+53.8%Added
Advisor Group Holdings, Inc.1,258$46.6K0.00%−1,013−44.6%Reduced
Leonteq Securities AG2,550$94.4K0.01%+2,550New
BlackRock, Inc.3,266$120.9K0.00%−1,889−36.6%Reduced
Quantbot Technologies LP3,298$122.1K0.00%+3,298New
Van Eck Associates Corp4,751$176.0K0.00%+4,751New
Global Retirement Partners, LLC6,000$222.2K0.01%+6,000New
Biltmore Family Office, LLC6,824$252.7K0.04%+6,824New
Geode Capital Management, LLC7,246$268.3K0.00%+7,246New
Zurcher Kantonalbank (Zurich Cantonalbank)7,936$293.9K0.00%+5,060+175.9%Added
LPL Financial LLC10,194$377.5K0.00%+10,194New
JPMorgan Chase & Co10,437$386.5K0.00%+10,437New
Envestnet Asset Management Inc11,703$433.4K0.00%−648−5.2%Reduced
Veracity Capital LLC11,729$434.3K0.15%−622−5.0%Reduced
Wolverine Trading, LLC12,520$486.9K0.01%+12,520New
Advisory Services Network, LLC21,603$718.2K0.01%+21,603New
Morgan Stanley20,393$755.2K0.00%−4,263−17.3%Reduced
Royal Bank of Canada21,620$801.0K0.00%+1,070+5.2%Added
IMC-Chicago, LLC23,007$851.9K0.02%+23,007New
SBI Securities Co., Ltd.36,590$1.35M0.04%+5,445+17.5%Added
Susquehanna International Group, LLP39,263$1.45M0.00%+39,263New
Raymond James Financial Inc45,397$1.68M0.00%+24,822+120.6%Added
Legal & General Group Plc72,566$2.69M0.00%+72,566New
UBS Group AG107,750$3.99M0.00%−130,644−54.8%Reduced
Penserra Capital Management LLC712,306$26.4M0.37%+712,306New
Virtu Financial LLC0$00.00%−32,208−100.0%Sold out
HRT Financial LP0$00.00%−29,361−100.0%Sold out
Citadel Advisors LLC0$00.00%−22,043−100.0%Sold out
Jane Street Group, LLC0$00.00%−20,523−100.0%Sold out
Hussman Strategic Advisors, Inc.0$00.00%−10,500−100.0%Sold out
Wolverine Asset Management LLC0$00.00%−4,354−100.0%Sold out
Group One Trading, L.P.0$00.00%−1,127−100.0%Sold out
Noble Wealth Management PBC––––Not filed