RA CAPITAL MANAGEMENT, L.P. - 11 Aug 2025 SCHEDULE 13G Report for Assembly Biosciences, Inc. Common Stock, par value $0.001 per share (ASMB)

Filing Manager
RA CAPITAL MANAGEMENT, L.P.
Reporting Manager
RA Capital Management, L.P.
Security
Assembly Biosciences, Inc. Common Stock, par value $0.001 per share
Symbol
ASMB
Shares outstanding
16,111,737 shares
Disclosed Ownership
1,530,615 shares
Ownership
9.5%
Form type
SCHEDULE 13G
Filing time
18 Aug 2025, 17:52:05 UTC
Date of event
11 Aug 2025
SEC
View on sec.gov

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Quoteable Key Fact

"RA CAPITAL MANAGEMENT, L.P. disclosed 9.5% ownership in Assembly Biosciences, Inc. Common Stock, par value $0.001 per share (ASMB) on 11 Aug 2025."

Quick Takeaways

  • RA CAPITAL MANAGEMENT, L.P. filed SCHEDULE 13G for Assembly Biosciences, Inc. Common Stock, par value $0.001 per share (ASMB).
  • Disclosed ownership: 9.5%.
  • Date of event: 11 Aug 2025.

What Changed

  • No earlier schedule filing is available for direct comparison.
  • Current filing was accepted on 18 Aug 2025, 17:52.

Why This Matters

  • This page explains what this Schedule 13D/13G filing tells you before manager-level rows.
  • You can verify ownership claims directly against the original SEC filing.

Source Evidence

Backed by Schedule 13D/13G

Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.

See Original Filing

Reporting Managers (4)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
RA Capital Management, L.P. 9.5% 1,530,615 0 1,530,615 /s/ Peter Kolchinsky By Peter Kolchinsky, Authorized Signatory
Peter Kolchinsky 9.5% 1,530,615 0 1,530,615 /s/ Peter Kolchinsky Peter Kolchinsky
Rajeev Shah 9.5% 1,530,615 0 1,530,615 /s/ Rajeev Shah Rajeev Shah
RA Capital Healthcare Fund, L.P. 9.5% 1,530,615 0 1,530,615 /s/ Peter Kolchinsky By RA Capital Healthcare Fund GP, LLC, its General Partner, By Peter Kolchinsky, Manager

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