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 Q1	$440K	Sell	33,199 -32,576	-50%	-$613K	﹤0.01%	8360
2025 Q4	$1.44M	Buy	65,775 +36,471	+124%	+$1.26M	﹤0.01%	5403
2025 Q3	$1.14M	Buy	+29,304	New	+$1.02M	﹤0.01%	6040
2025 Q2	–	Sell	-20,523	Closed	-$440K	–	9569
2025 Q1	$284K	Sell	20,523 -3,458	-14%	-$68.1K	﹤0.01%	7900
2024 Q4	$931K	Buy	+23,981	New	+$356K	﹤0.01%	5530
2024 Q3	–	Sell	-33,146	Closed	-$283K	–	9534
2024 Q2	$283K	Buy	+33,146	New	+$359K	﹤0.01%	7888
2023 Q4	–	Sell	-808	Closed	-$12K	–	9154
2023 Q3	$12K	Buy	+808	New	+$19.7K	﹤0.01%	8366
2023 Q1	–	Sell	-2,905	Closed	-$137K	–	8978
2022 Q4	$262K	Buy	+2,905	New	+$426K	﹤0.01%	7248
2022 Q3	–	Sell	-498	Closed	-$78K	–	9651
2022 Q2	$78K	Sell	498 -2,295	-82%	-$475K	﹤0.01%	8767
2022 Q1	$1.09M	Buy	2,793 +2,068	+285%	+$834K	﹤0.01%	5957
2021 Q4	$434K	Sell	725 -44	-6%	-$24.5K	﹤0.01%	7515
2021 Q3	$386K	Buy	+769	New	+$382K	﹤0.01%	7732

Other funds holding ARQQ

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 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 Zurich, Switzerland $666B AUM 30.12% 1-Year Est. Return

Raymond James Financial St Petersburg, Florida $324B AUM 22.36% 1-Year Est. Return

Millennium Management New York $240B AUM 35.51% 1-Year Est. Return

Legal & General Group London, United Kingdom $432B AUM 29.4% 1-Year Est. Return

Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return

Tudor Investment Corp Stamford, Connecticut $53.9B AUM 29.12% 1-Year Est. Return

Jane Street's ARQQ Position: Q1 2026 in Review

Jane Street reduced its Arqit Quantum (ARQQ) stake by 50% in Q1 2026, selling an estimated $613K and leaving 33,199 shares worth $440K. The position accounts for ﹤0.01% of the portfolio, ranked #8360.

Jane Street first reported a position in ARQQ in Q3 2021 and has held it in 12 quarters since. The position peaked at $1.44M in Q4 2025. 57 funds tracked by Wall St. Rank hold ARQQ as of Q1 2026.

Jane Street held 33,199 shares of Arqit Quantum worth $440K as of Q1 2026.
Jane Street sold 32,576 Arqit Quantum shares in Q1 2026, an estimated $613K.
Arqit Quantum made up ﹤0.01% of Jane Street's portfolio in Q1 2026, its #8360 holding.
Jane Street first reported a position in Arqit Quantum in Q3 2021 and has held it in 12 quarters since.
Jane Street's Arqit Quantum position peaked at $1.44M in Q4 2025.
57 funds tracked by Wall St. Rank held Arqit Quantum as of Q1 2026.

Based on Jane Street's 13F filing for Q1 2026, filed 12 May 2026.