Jane Street’s Arqit Quantum ARQQ Stock Holding History

Jane Street’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
2026 Q2	$6.59M	Buy	221,700 +203,600	+1,125%	+$3.31M	﹤0.01%	3334
2026 Q1	$240K	Sell	18,100 -36,100	-67%	-$680K	﹤0.01%	9721
2025 Q4	$1.19M	Sell	54,200 -5,500	-9%	-$190K	﹤0.01%	5786
2025 Q3	$2.31M	Buy	59,700 +41,800	+234%	+$1.45M	﹤0.01%	4664
2025 Q2	$663K	Sell	17,900 -3,200	-15%	-$68.6K	﹤0.01%	6409
2025 Q1	$292K	Buy	+21,100	New	+$415K	﹤0.01%	7851
2023 Q3	–	Sell	-892	Closed	-$27K	–	8583
2023 Q2	$27K	Sell	892 -300	-25%	-$9.06K	﹤0.01%	8321
2023 Q1	$41.7K	Buy	+1,192	New	+$56.4K	﹤0.01%	8499
2022 Q3	–	Sell	-1,892	Closed	-$298K	–	9650
2022 Q2	$298K	Sell	1,892 -5,536	-75%	-$1.15M	﹤0.01%	7616
2022 Q1	$2.89M	Sell	7,428 -10,096	-58%	-$4.07M	﹤0.01%	4030
2021 Q4	$10.5M	Buy	+17,524	New	+$9.76M	﹤0.01%	1827

Other funds holding ARQQ

PCM

Penserra Capital Management Orinda, California $13B AUM 71.84% 1-Year Est. Return

Defiance ETFs New York $7.37B AUM

UBS Group Zurich, Switzerland $786B AUM 40.34% 1-Year Est. Return

Legal & General Group London, United Kingdom $480B AUM 42.84% 1-Year Est. Return

National Bank of Canada Montreal, Quebec, Canada $140B AUM 46.34% 1-Year Est. Return

Mirae Asset Global ETFs Holdings Causeway Bay, Hong Kong $83.9B AUM 60.43% 1-Year Est. Return

KIG

Kessler Investment Group Columbus, Indiana $234M AUM 51.88% 1-Year Est. Return

Bank of New York Mellon New York $609B AUM 40.19% 1-Year Est. Return

Raymond James Financial St Petersburg, Florida $369B AUM 28.27% 1-Year Est. Return

Millennium Management New York $276B AUM 44.8% 1-Year Est. Return

Jane Street's ARQQ Position: Q2 2026 in Review

Jane Street sold out of Arqit Quantum (ARQQ) in Q2 2026, closing a stake of 33,199 shares — an estimated $540K sold.

Jane Street first reported a position in ARQQ in Q3 2021 and held it in 12 quarters. The position peaked at $1.44M in Q4 2025. 64 funds tracked by Wall St. Rank hold ARQQ as of Q2 2026.

Jane Street reported no remaining Arqit Quantum position as of Q2 2026 after selling out during the quarter.
Jane Street sold 33,199 Arqit Quantum shares in Q2 2026, an estimated $540K.
Jane Street first reported a position in Arqit Quantum in Q3 2021 and held it in 12 quarters.
Jane Street's Arqit Quantum position peaked at $1.44M in Q4 2025.
64 funds tracked by Wall St. Rank held Arqit Quantum as of Q2 2026.

Based on Jane Street's 13F filing for Q2 2026, filed 14 Aug 2026.