Jane Street
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Jane Street’s Fulcrum Therapeutics FULC Stock Holding History

Jane Street’s Portfolio FULC Stock Details FULC Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$8.12M Buy
2,217,498
+1,907,081
+614% +$11.6M ﹤0.01% 3090
2026
Q1 		$2.38M Sell
310,417
-183,333
-37% -$1.7M ﹤0.01% 4750
2025
Q4 		$5.58M Buy
493,750
+172,230
+54% +$1.75M ﹤0.01% 3065
2025
Q3 		$2.96M Buy
321,520
+304,093
+1,745% +$2.2M ﹤0.01% 4247
2025
Q2 		$120K Sell
17,427
-100,389
-85% -$537K ﹤0.01% 8873
2025
Q1 		$339K Buy
117,816
+72,657
+161% +$267K ﹤0.01% 7592
2024
Q4 		$212K Sell
45,159
-74,734
-62% -$276K ﹤0.01% 8314
2024
Q3 		$428K Sell
119,893
-48,351
-29% -$359K ﹤0.01% 7468
2024
Q2 		$1.04M Sell
168,244
-366,818
-69% -$2.78M ﹤0.01% 5680
2024
Q1 		$5.05M Buy
535,062
+188,212
+54% +$1.68M ﹤0.01% 2591
2023
Q4 		$2.34M Buy
346,850
+308,349
+801% +$1.37M ﹤0.01% 4053
2023
Q3 		$171K Sell
38,501
-27,792
-42% -$121K ﹤0.01% 7722
2023
Q2 		$219K Buy
66,293
+52,039
+365% +$153K ﹤0.01% 7572
2023
Q1 		$40.6K Buy
14,254
+2,567
+22% +$23K ﹤0.01% 8506
2022
Q4 		$85.1K Buy
+11,687
New +$76.2K ﹤0.01% 8186
2022
Q3 		– Sell
-37,930
Closed -$186K – 9939
2022
Q2 		$186K Buy
37,930
+22,972
+154% +$224K ﹤0.01% 8249
2022
Q1 		$354K Sell
14,958
-16,281
-52% -$230K ﹤0.01% 8112
2021
Q4 		$552K Sell
31,239
-18,703
-37% -$370K ﹤0.01% 7070
2021
Q3 		$1.41M Buy
+49,942
New +$946K ﹤0.01% 5222

Other funds holding FULC

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
EC
EcoR1 Capital San Francisco, California $2.06B AUM 215.32% 1-Year Est. Return
NCM
Nantahala Capital Management New Canaan, Connecticut $3B AUM 119.43% 1-Year Est. Return
D.E. Shaw & Co
D.E. Shaw & Co New York $210B AUM 57.28% 1-Year Est. Return
Citadel Advisors
Citadel Advisors Miami, Florida $875B AUM 40.91% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Adage Capital Partners
Adage Capital Partners Boston, Massachusetts $71.3B AUM 56.8% 1-Year Est. Return
GP
GSK plc London $602M AUM
Qube Research & Technologies (QRT)
Qube Research & Technologies (QRT) London, United Kingdom $108B AUM 37.29% 1-Year Est. Return

Jane Street's FULC Position: Q2 2026 in Review

Jane Street increased its Fulcrum Therapeutics (FULC) stake by 614% in Q2 2026, buying an estimated $11.6M and bringing the position to 2,217,498 shares worth $8.12M. The position accounts for ﹤0.01% of the portfolio, ranked #3090.

Jane Street first reported a position in FULC in Q3 2021 and has held it in 19 quarters since. 141 funds tracked by Wall St. Rank hold FULC as of Q2 2026.

  • Jane Street held 2,217,498 shares of Fulcrum Therapeutics worth $8.12M as of Q2 2026.
  • Jane Street bought 1,907,081 Fulcrum Therapeutics shares in Q2 2026, an estimated $11.6M.
  • Fulcrum Therapeutics made up ﹤0.01% of Jane Street's portfolio in Q2 2026, its #3090 holding.
  • Jane Street first reported a position in Fulcrum Therapeutics in Q3 2021 and has held it in 19 quarters since.
  • 141 funds tracked by Wall St. Rank held Fulcrum Therapeutics as of Q2 2026.

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