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
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 Foster City, California $1.65B AUM 166.99% 1-Year Est. Return

FCM

Farallon Capital Management San Francisco, California $21.7B AUM 79.24% 1-Year Est. Return

PBA

Paradigm Biocapital Advisors New York $5.34B AUM 380.18% 1-Year Est. Return

Commodore Capital New York $1.68B AUM 375.52% 1-Year Est. Return

RCM

RA Capital Management Boston, Massachusetts $11.5B AUM 168.77% 1-Year Est. Return

Jupiter Topco New York $245B AUM

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

PHP

Parkman Healthcare Partners Stamford, Connecticut $977M AUM 110.37% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Point72 Asset Management Stamford, Connecticut $90.7B AUM 77.13% 1-Year Est. Return

Jane Street's ASMB Position: Q2 2026 in Review

Jane Street sold out of Assembly Biosciences (ASMB) in Q2 2026, closing a stake of 34,499 shares — an estimated $957K sold.

Jane Street first reported a position in ASMB in Q2 2013 and held it in 16 quarters. The position peaked at $1.83M in Q4 2025. 93 funds tracked by Wall St. Rank hold ASMB as of Q2 2026.

Jane Street reported no remaining Assembly Biosciences position as of Q2 2026 after selling out during the quarter.
Jane Street sold 34,499 Assembly Biosciences shares in Q2 2026, an estimated $957K.
Jane Street first reported a position in Assembly Biosciences in Q2 2013 and held it in 16 quarters.
Jane Street's Assembly Biosciences position peaked at $1.83M in Q4 2025.
93 funds tracked by Wall St. Rank held Assembly Biosciences as of Q2 2026.

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