Jane Street
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Jane Street’s Assembly Biosciences ASMB Stock Holding History

Jane Street’s Portfolio ASMB Stock Details ASMB Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q3 		$322K Buy
+13,700
New +$392K ﹤0.01% 9016
2021
Q2 		– Sell
-3,017
Closed -$167K – 9739
2021
Q1 		$167K Buy
3,017
+1,767
+141% +$117K ﹤0.01% 8389
2020
Q4 		$91K Buy
+1,250
New +$147K ﹤0.01% 7225

Other funds holding ASMB

Gilead Sciences
Gilead Sciences Foster City, California $1.46B AUM 71.23% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.76T AUM
State Street
State Street Boston, Massachusetts $3.44T AUM 36.12% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.92T AUM 36.1% 1-Year Est. Return
HRT Financial
HRT Financial New York $57.2B AUM 52.85% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.21T AUM
Qube Research & Technologies (QRT)
Qube Research & Technologies (QRT) London, United Kingdom $123B AUM 30.05% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $73.4B AUM 32.8% 1-Year Est. Return
Franklin Resources
Franklin Resources San Mateo, California $474B AUM 32.39% 1-Year Est. Return
Vanguard Fiduciary Trust
Vanguard Fiduciary Trust Malvern, Pennsylvania $463B AUM

Jane Street's ASMB Position: Q3 2026 in Review

Jane Street opened a new position in Assembly Biosciences (ASMB) in Q3 2026: 21,201 shares worth $498K. The stake represents ﹤0.01% of the portfolio and ranks #8029 among its holdings. This is a return to the name: Jane Street previously reported a position in ASMB as recently as Q1 2026.

Jane Street first reported a position in ASMB in Q2 2013 and has held it in 17 quarters since. The position peaked at $1.83M in Q4 2025. 54 funds tracked by Wall St. Rank hold ASMB as of Q3 2026.

  • Jane Street held 21,201 shares of Assembly Biosciences worth $498K as of Q3 2026.
  • Assembly Biosciences was a new Jane Street position in Q3 2026.
  • Assembly Biosciences made up ﹤0.01% of Jane Street's portfolio in Q3 2026, its #8029 holding.
  • Jane Street first reported a position in Assembly Biosciences in Q2 2013 and has held it in 17 quarters since.
  • Jane Street's Assembly Biosciences position peaked at $1.83M in Q4 2025.
  • 54 funds tracked by Wall St. Rank held Assembly Biosciences as of Q3 2026.

Based on Jane Street's 13F filing for Q3 2026, filed 12 Nov 2026.