Citadel Advisors
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Citadel Advisors’s Arqit Quantum ARQQ Stock Holding History

Citadel Advisors’s Portfolio ARQQ Stock Details ARQQ Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q2 		– Sell
-22,043
Closed -$472K – 12441
2025
Q1 		$306K Buy
22,043
+16,916
+330% +$333K ﹤0.01% 9539
2024
Q4 		$199K Buy
+5,127
New +$76.1K ﹤0.01% 10471
2022
Q3 		– Sell
-459
Closed -$70.6K – 12558
2022
Q2 		$73K Sell
459
-1,623
-78% -$336K ﹤0.01% 11665
2022
Q1 		$810K Buy
+2,082
New +$840K ﹤0.01% 8193
2021
Q4 		– Sell
-959
Closed -$534K – 13749
2021
Q3 		$481K Buy
+959
New +$477K ﹤0.01% 9963

Other funds holding ARQQ

DE
Defiance ETFs New York $6.98B AUM
PCM
Penserra Capital Management Orinda, California $8.52B AUM 37.76% 1-Year Est. Return
Mirae Asset Global ETFs Holdings
Mirae Asset Global ETFs Holdings Causeway Bay, Hong Kong $73.7B AUM 53.56% 1-Year Est. Return
KIG
Kessler Investment Group Columbus, Indiana $234M AUM 51.88% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $666B AUM 30.12% 1-Year Est. Return
Raymond James Financial
Raymond James Financial St Petersburg, Florida $324B AUM 22.36% 1-Year Est. Return
Millennium Management
Millennium Management New York $240B AUM 35.51% 1-Year Est. Return
Legal & General Group
Legal & General Group London, United Kingdom $432B AUM 29.4% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return
Tudor Investment Corp
Tudor Investment Corp Stamford, Connecticut $53.9B AUM 29.12% 1-Year Est. Return

Citadel Advisors's ARQQ Position: Q2 2025 in Review

Citadel Advisors sold out of Arqit Quantum (ARQQ) in Q2 2025, closing a stake of 22,043 shares — an estimated $472K sold.

Citadel Advisors first reported a position in ARQQ in Q3 2021 and held it in 5 quarters. The position peaked at $810K in Q1 2022. 42 funds tracked by Wall St. Rank hold ARQQ as of Q2 2025.

  • Citadel Advisors reported no remaining Arqit Quantum position as of Q2 2025 after selling out during the quarter.
  • Citadel Advisors sold 22,043 Arqit Quantum shares in Q2 2025, an estimated $472K.
  • Citadel Advisors first reported a position in Arqit Quantum in Q3 2021 and held it in 5 quarters.
  • Citadel Advisors's Arqit Quantum position peaked at $810K in Q1 2022.
  • 42 funds tracked by Wall St. Rank held Arqit Quantum as of Q2 2025.

Based on Citadel Advisors's 13F filing for Q2 2025, filed 14 Aug 2025.