Jane Street
QUBT icon

Jane Street’s Quantum Computing Inc QUBT Stock Holding History

Jane Street’s Portfolio QUBT Stock Details QUBT Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q3 		– Sell
-4,978,363
Closed -$85.4M – 11582
2025
Q2 		$89.7M Buy
4,978,363
+4,848,010
+3,719% +$53.4M 0.02% 503
2025
Q1 		$1.04M Sell
130,353
-75,534
-37% -$664K ﹤0.01% 5494
2024
Q4 		$3.41M Buy
+205,887
New +$1.13M ﹤0.01% 3232
2024
Q3 		– Sell
-36,030
Closed -$18.1K – 10261
2024
Q2 		$18.1K Buy
36,030
+20,419
+131% +$15.3K ﹤0.01% 9048
2024
Q1 		$15.5K Sell
15,611
-9,498
-38% -$8.54K ﹤0.01% 8924
2023
Q4 		$22.9K Buy
+25,109
New +$21.6K ﹤0.01% 8892
2023
Q1 		– Sell
-53,959
Closed -$81.5K – 9750
2022
Q4 		$81.5K Sell
53,959
-14,854
-22% -$30.2K ﹤0.01% 8206
2022
Q3 		$173K Buy
+68,813
New +$207K ﹤0.01% 8297
2022
Q1 		– Sell
-12,370
Closed -$42K – 10899
2021
Q4 		$42K Buy
+12,370
New +$65.8K ﹤0.01% 9590

Other funds holding QUBT

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
DE
Defiance ETFs New York $7.37B AUM
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
MG
Marex Group London $23.6B AUM 57.16% 1-Year Est. Return
Mirae Asset Global ETFs Holdings
Mirae Asset Global ETFs Holdings Causeway Bay, Hong Kong $83.9B AUM 60.43% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $786B AUM 40.34% 1-Year Est. Return

Jane Street's QUBT Position: Q3 2025 in Review

Jane Street sold out of Quantum Computing Inc (QUBT) in Q3 2025, closing a stake of 4,978,363 shares — an estimated $85.4M sold.

Jane Street first reported a position in QUBT in Q4 2021 and held it in 9 quarters. The position peaked at $89.7M in Q2 2025. 259 funds tracked by Wall St. Rank hold QUBT as of Q3 2025.

  • Jane Street reported no remaining Quantum Computing Inc position as of Q3 2025 after selling out during the quarter.
  • Jane Street sold 4,978,363 Quantum Computing Inc shares in Q3 2025, an estimated $85.4M.
  • Jane Street first reported a position in Quantum Computing Inc in Q4 2021 and held it in 9 quarters.
  • Jane Street's Quantum Computing Inc position peaked at $89.7M in Q2 2025.
  • 259 funds tracked by Wall St. Rank held Quantum Computing Inc as of Q3 2025.

Based on Jane Street's 13F filing for Q3 2025, filed 14 Nov 2025.