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Cubist Systematic Strategies’s Assembly Biosciences ASMB Stock Holding History

Cubist Systematic Strategies’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
2025
Q3 		$414K Buy
+16,161
New +$355K ﹤0.01% 2368
2022
Q4 		– Sell
-1,655
Closed -$33K – 4229
2022
Q3 		$33K Sell
1,655
-758
-31% -$18.3K ﹤0.01% 4180
2022
Q2 		$61K Buy
+2,413
New +$55.5K ﹤0.01% 4062
2022
Q1 		– Sell
-2,971
Closed -$83K – 3547
2021
Q4 		$83K Buy
2,971
+1,400
+89% +$45.9K ﹤0.01% 3235
2021
Q3 		$66K Sell
1,571
-1,202
-43% -$50.4K ﹤0.01% 2805
2021
Q2 		$129K Sell
2,773
-2,304
-45% -$114K ﹤0.01% 2683
2021
Q1 		$280K Sell
5,077
-5,431
-52% -$360K ﹤0.01% 2295
2020
Q4 		$763K Buy
+10,508
New +$1.23M 0.01% 1546
2019
Q4 		– Sell
-1,987
Closed -$234K – 2405
2019
Q3 		$234K Sell
1,987
-220
-10% -$33.3K ﹤0.01% 1693
2019
Q2 		$357K Sell
2,207
-30
-1% -$5.7K 0.01% 1686
2019
Q1 		$528K Buy
2,237
+744
+50% +$188K 0.02% 1162
2018
Q4 		$405K Buy
+1,493
New +$432K 0.02% 1090
2018
Q2 		– Sell
-747
Closed -$440K – 1775
2018
Q1 		$440K Buy
+747
New +$463K 0.03% 891

Other funds holding ASMB

GS
Gilead Sciences Foster City, California $2.12B AUM 143.53% 1-Year Est. Return
FCM
Farallon Capital Management San Francisco, California $17.5B AUM 50.95% 1-Year Est. Return
RCM
RA Capital Management Boston, Massachusetts $9.44B AUM 157.3% 1-Year Est. Return
CC
Commodore Capital New York $1.73B AUM 298.96% 1-Year Est. Return
Janus Henderson Group
Janus Henderson Group London, United Kingdom $209B AUM 37.72% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
FLSM
Frazier Life Sciences Management Palo Alto, California $3.89B AUM 201.1% 1-Year Est. Return
Blackstone Inc
Blackstone Inc New York $25.6B AUM 26.83% 1-Year Est. Return
Franklin Resources
Franklin Resources San Mateo, California $408B AUM 30.18% 1-Year Est. Return
Point72 Asset Management
Point72 Asset Management Stamford, Connecticut $78.1B AUM 55.25% 1-Year Est. Return

Cubist Systematic Strategies's ASMB Position: Q3 2025 in Review

Cubist Systematic Strategies opened a new position in Assembly Biosciences (ASMB) in Q3 2025: 16,161 shares worth $414K. The stake represents ﹤0.01% of the portfolio and ranks #2368 among its holdings. This is a return to the name: Cubist Systematic Strategies previously reported a position in ASMB as recently as Q3 2022.

Cubist Systematic Strategies first reported a position in ASMB in Q1 2018 and has held it in 13 quarters since. The position peaked at $763K in Q4 2020. 57 funds tracked by Wall St. Rank hold ASMB as of Q3 2025.

  • Cubist Systematic Strategies held 16,161 shares of Assembly Biosciences worth $414K as of Q3 2025.
  • Assembly Biosciences was a new Cubist Systematic Strategies position in Q3 2025.
  • Assembly Biosciences made up ﹤0.01% of Cubist Systematic Strategies's portfolio in Q3 2025, its #2368 holding.
  • Cubist Systematic Strategies first reported a position in Assembly Biosciences in Q1 2018 and has held it in 13 quarters since.
  • Cubist Systematic Strategies's Assembly Biosciences position peaked at $763K in Q4 2020.
  • 57 funds tracked by Wall St. Rank held Assembly Biosciences as of Q3 2025.

Based on Cubist Systematic Strategies's 13F filing for Q3 2025, filed 14 Nov 2025.