Citigroup
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Citigroup’s Assembly Biosciences ASMB Stock Holding History

Citigroup’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 		$180K Buy
6,483
+4,282
+195% +$122K ﹤0.01% 4049
2025
Q4 		$74.9K Buy
+2,201
New +$70.9K ﹤0.01% 4439
2021
Q4 		– Sell
-192
Closed -$8K – 5810
2021
Q3 		$8K Sell
192
-213
-53% -$8.93K ﹤0.01% 5515
2021
Q2 		$19K Buy
405
+148
+58% +$7.33K ﹤0.01% 5318
2021
Q1 		$14K Sell
257
-535
-68% -$35.5K ﹤0.01% 5429
2020
Q4 		$57K Buy
792
+552
+230% +$64.8K ﹤0.01% 5940
2020
Q3 		$47K Sell
240
-1,305
-84% -$329K ﹤0.01% 5635
2020
Q2 		$432K Buy
1,545
+671
+77% +$157K ﹤0.01% 4397
2020
Q1 		$156K Buy
874
+311
+55% +$66.7K ﹤0.01% 4944
2019
Q4 		$138K Buy
563
+318
+130% +$58.6K ﹤0.01% 5480
2019
Q3 		$29K Sell
245
-240
-49% -$36.3K ﹤0.01% 6491
2019
Q2 		$78K Buy
485
+141
+41% +$26.8K ﹤0.01% 6087
2019
Q1 		$81K Sell
344
-107
-24% -$27.1K ﹤0.01% 5942
2018
Q4 		$123K Sell
451
-18
-4% -$5.21K ﹤0.01% 5481
2018
Q3 		$208K Buy
469
+257
+121% +$120K ﹤0.01% 5210
2018
Q2 		$100K Buy
212
+19
+10% +$10K ﹤0.01% 5723
2018
Q1 		$114K Sell
193
-28
-13% -$17.4K ﹤0.01% 5493
2017
Q4 		$119K Buy
+221
New +$100K ﹤0.01% 5484
2017
Q3 		– Sell
-13
Closed -$3K – 7245
2017
Q2 		$3K Buy
+13
New +$3.66K ﹤0.01% 6864
2016
Q2 		– Sell
-987
Closed -$59K – 7061
2016
Q1 		$59K Buy
987
+903
+1,075% +$60.4K ﹤0.01% 6007
2015
Q4 		$8K Sell
84
-7
-8% -$763 ﹤0.01% 6878
2015
Q3 		$11K Sell
91
-8
-8% -$1.41K ﹤0.01% 6363
2015
Q2 		$23K Buy
99
+16
+19% +$3.09K ﹤0.01% 6013
2015
Q1 		$13K Sell
83
-96
-54% -$13K ﹤0.01% 6323
2014
Q4 		$17K Buy
179
+171
+2,138% +$16.8K ﹤0.01% 6283
2014
Q3 		$1K Buy
8
+4
+100% +$355 ﹤0.01% 6885
2014
Q2 		$0 Sell
4
-27
-87% -$1.92K ﹤0.01% 7096
2014
Q1 		$2K Buy
31
+25
+417% +$3.89K ﹤0.01% 6766
2013
Q4 		$1K Sell
6
-4
-40% -$728 ﹤0.01% 6842
2013
Q3 		$2K Buy
+10
New +$1.53K ﹤0.01% 6575

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

Citigroup's ASMB Position: Q1 2026 in Review

Citigroup increased its Assembly Biosciences (ASMB) stake by 195% in Q1 2026, buying an estimated $122K and bringing the position to 6,483 shares worth $180K. The position accounts for ﹤0.01% of the portfolio, ranked #4049.

Citigroup first reported a position in ASMB in Q3 2013 and has held it in 30 quarters since. The position peaked at $432K in Q2 2020. 75 funds tracked by Wall St. Rank hold ASMB as of Q1 2026.

  • Citigroup held 6,483 shares of Assembly Biosciences worth $180K as of Q1 2026.
  • Citigroup bought 4,282 Assembly Biosciences shares in Q1 2026, an estimated $122K.
  • Assembly Biosciences made up ﹤0.01% of Citigroup's portfolio in Q1 2026, its #4049 holding.
  • Citigroup first reported a position in Assembly Biosciences in Q3 2013 and has held it in 30 quarters since.
  • Citigroup's Assembly Biosciences position peaked at $432K in Q2 2020.
  • 75 funds tracked by Wall St. Rank held Assembly Biosciences as of Q1 2026.

Based on Citigroup's 13F filing for Q1 2026, filed 11 May 2026.