Hudson Bay Capital Management
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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
Q2 		– Sell
-16,799
Closed -$466K – 1367
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 $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
CC
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
JT
Jupiter Topco New York $245B AUM
BlackRock
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
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Point72 Asset Management
Point72 Asset Management Stamford, Connecticut $90.7B AUM 77.13% 1-Year Est. Return

Hudson Bay Capital Management's ASMB Position: Q2 2026 in Review

Hudson Bay Capital Management sold out of Assembly Biosciences (ASMB) in Q2 2026, closing a stake of 16,799 shares — an estimated $466K sold.

Hudson Bay Capital Management first reported a position in ASMB in Q4 2020 and held it in 14 quarters. The position peaked at $3.08M in Q4 2020. 93 funds tracked by Wall St. Rank hold ASMB as of Q2 2026.

  • Hudson Bay Capital Management reported no remaining Assembly Biosciences position as of Q2 2026 after selling out during the quarter.
  • Hudson Bay Capital Management sold 16,799 Assembly Biosciences shares in Q2 2026, an estimated $466K.
  • Hudson Bay Capital Management first reported a position in Assembly Biosciences in Q4 2020 and held it in 14 quarters.
  • Hudson Bay Capital Management's Assembly Biosciences position peaked at $3.08M in Q4 2020.
  • 93 funds tracked by Wall St. Rank held Assembly Biosciences as of Q2 2026.

Based on Hudson Bay Capital Management's 13F filing for Q2 2026, filed 14 Aug 2026.