Assembly Biosciences, Inc.

ASMB

Exchange: Nasdaq
Industry: Pharmaceutical Preparations
SEC CIK: 0001426800

SEC filings (opens in a new tab)

No open-market purchases or sales by Assembly Biosciences, Inc. insiders were filed in the last 90 days; 92 institutions reported holding it in 13F filings for Q2 2026, worth $514.8M in total; no superinvestor holds it.

Q4 2021 vs. Q3 2021

How the institutions holding Assembly Biosciences, Inc. changed between Q3 2021 and Q4 2021.

All holders in Q4 2021 All holders in Q3 2021

13F holders of ASMB: Q3 2021 compared with Q4 2021
Measure	Q3 2021	Q4 2021	Change
Holders	65	62	−3
Shares	22.7M	23.1M	+389.7K (+1.7%)
Value	$79.0M	$53.8M	−$25.2M (−31.9%)

New holders (9)

Institutions that held Assembly Biosciences, Inc. at the end of Q4 2021 but not at the end of Q3 2021.

Institutions new to ASMB in Q4 2021
Institution	Shares	Value	% of portfolio
Deep Track Capital, LP	3,000,000	$6.99M	0.52%
Two Sigma Investments, LP	190,291	$443.0K	0.00%
Anson Funds Management LP	179,192	$418.0K	0.06%
Virtu Financial LLC	35,639	$83.0K	0.01%
XTX Topco Ltd	24,425	$57.0K	0.03%
Jump Financial, LLC	20,300	$47.0K	0.00%
HSBC Holdings PLC	18,645	$44.0K	0.00%
Squarepoint Ops LLC	13,339	$31.0K	0.00%
Royal Bank of Canada	29	$0	0.00%

Sold out (12)

Institutions that held Assembly Biosciences, Inc. at the end of Q3 2021 and filed for Q4 2021 without it.

Institutions that sold out of ASMB in Q4 2021
Institution	Shares, Q3 2021	Value, Q3 2021
Boxer Capital, LLC	1,500,000	$5.22M
Soleus Capital Management, L.P.	1,122,000	$3.90M
Prosight Management, LP	265,634	$924.0K
Jacobs Levy Equity Management, Inc	200,553	$698.0K
Caption Management, LLC	67,700	$236.0K
New York Life Investments Alternatives	20,909	$73.0K
Walleye Trading LLC	17,656	$61.0K
Diversified Trust Co	16,198	$56.0K
Citigroup Inc	2,299	$8.00K
Penserra Capital Management LLC	1,030	$3.00K
Nisa Investment Advisors, LLC	695	$2.00K
Daiwa Securities Group Inc.	72	$0