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Assembly Biosciences, Inc.

ASMB
Exchange
Nasdaq
Industry
Pharmaceutical Preparations
SEC CIK
0001426800

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.

Q3 2023 vs. Q2 2023

How the institutions holding Assembly Biosciences, Inc. changed between Q2 2023 and Q3 2023.

All holders in Q3 2023All holders in Q2 2023

13F holders of ASMB: Q2 2023 compared with Q3 2023
MeasureQ2 2023Q3 2023Change
Holders32320
Shares10.5M9.54M−927.0K (−8.9%)
Value$12.0M$8.44M−$3.59M (−29.8%)

New holders (2)

Institutions that held Assembly Biosciences, Inc. at the end of Q3 2023 but not at the end of Q2 2023.

Institutions new to ASMB in Q3 2023
InstitutionSharesValue% of portfolio
XTX Topco Ltd25,237$22.3K0.00%
Qube Research & Technologies Ltd43$380.00%

Sold out (2)

Institutions that held Assembly Biosciences, Inc. at the end of Q2 2023 and filed for Q3 2023 without it.

Institutions that sold out of ASMB in Q3 2023
InstitutionShares, Q2 2023Value, Q2 2023
Susquehanna International Group, LLP12,067$13.9K
Royal Bank of Canada331$0