Jane Street’s Arqit Quantum ARQQ Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q2
Sell
-33,199
Closed -$540K 11488
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

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.