Hudson Bay Capital Management
ASMB icon

Hudson Bay Capital Management’s Assembly Biosciences ASMB Stock Holding History

Hudson Bay Capital Management’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
Q1 		$466K Buy
16,799
+1,749
+12% +$49.9K ﹤0.01% 985
2025
Q4 		$512K Buy
+15,050
New +$485K ﹤0.01% 865
2023
Q4 		– Sell
-16,649
Closed -$177K – 722
2023
Q3 		$177K Sell
16,649
-52,206
-76% -$629K ﹤0.01% 629
2023
Q2 		$950K Sell
68,855
-10,312
-13% -$127K 0.01% 603
2023
Q1 		$798K Sell
79,167
-6,250
-7% -$105K 0.01% 605
2022
Q4 		$1.33M Sell
85,417
-4,166
-5% -$71.2K 0.01% 662
2022
Q3 		$1.76M Hold
89,583
– – 0.02% 764
2022
Q2 		$2.26M Hold
89,583
– – 0.02% 756
2022
Q1 		$2.21M Hold
89,583
– – 0.03% 668
2021
Q4 		$2.5M Buy
89,583
+18,750
+26% +$615K 0.03% 608
2021
Q3 		$2.96M Buy
70,833
+8,333
+13% +$349K 0.04% 530
2021
Q2 		$2.91M Buy
62,500
+10,833
+21% +$537K 0.04% 534
2021
Q1 		$2.85M Buy
51,667
+9,175
+22% +$608K 0.04% 458
2020
Q4 		$3.08M Buy
+42,492
New +$4.99M 0.03% 307

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
PBA
Paradigm Biocapital Advisors New York $4.89B AUM 251.12% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
PHP
Parkman Healthcare Partners Stamford, Connecticut $970M AUM 79.46% 1-Year Est. Return
Point72 Asset Management
Point72 Asset Management Stamford, Connecticut $78.1B AUM 55.25% 1-Year Est. Return
Blackstone Inc
Blackstone Inc New York $25.6B AUM 26.83% 1-Year Est. Return

Hudson Bay Capital Management's ASMB Position: Q1 2026 in Review

Hudson Bay Capital Management increased its Assembly Biosciences (ASMB) stake by 12% in Q1 2026, buying an estimated $49.9K and bringing the position to 16,799 shares worth $466K. The position accounts for ﹤0.01% of the portfolio, ranked #985.

Hudson Bay Capital Management first reported a position in ASMB in Q4 2020 and has held it in 14 quarters since. The position peaked at $3.08M in Q4 2020. 75 funds tracked by Wall St. Rank hold ASMB as of Q1 2026.

  • Hudson Bay Capital Management held 16,799 shares of Assembly Biosciences worth $466K as of Q1 2026.
  • Hudson Bay Capital Management bought 1,749 Assembly Biosciences shares in Q1 2026, an estimated $49.9K.
  • Assembly Biosciences made up ﹤0.01% of Hudson Bay Capital Management's portfolio in Q1 2026, its #985 holding.
  • Hudson Bay Capital Management first reported a position in Assembly Biosciences in Q4 2020 and has held it in 14 quarters since.
  • Hudson Bay Capital Management's Assembly Biosciences position peaked at $3.08M in Q4 2020.
  • 75 funds tracked by Wall St. Rank held Assembly Biosciences as of Q1 2026.

Based on Hudson Bay Capital Management's 13F filing for Q1 2026, filed 13 May 2026.