RA CAPITAL MANAGEMENT, L.P. - 30 Sep 2025 SCHEDULE 13G/A Report for Avidity Biosciences, Inc. Common Stock, par value $0.0001 per share (RNA)

Filing Manager: RA CAPITAL MANAGEMENT, L.P.
Reporting Manager: RA Capital Management, L.P.
Security: Avidity Biosciences, Inc. Common Stock, par value $0.0001 per share
Symbol: RNA
Shares outstanding: 146,458,153 shares
Disclosed Ownership: 8,641,031 shares
Ownership: 5.9%
Form type: SCHEDULE 13G/A
Filing time: 14 Nov 2025, 16:13:04 UTC
Date of event: 30 Sep 2025
SEC: View on sec.gov

Key filing fact

RA CAPITAL MANAGEMENT, L.P. disclosed 5.9% ownership in Avidity Biosciences, Inc. Common Stock, par value $0.0001 per share (RNA) on 30 Sep 2025.

Key facts

RA CAPITAL MANAGEMENT, L.P. filed SCHEDULE 13G/A for Avidity Biosciences, Inc. Common Stock, par value $0.0001 per share (RNA).
Disclosed ownership: 5.9%.
Date of event: 30 Sep 2025.

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.

Backed by Schedule 13D/13G

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

Reporting persons

Names, ownership, voting power, signatures, titles, and CIKs as disclosed in this Schedule 13D/G filing.

Name	Ownership	Shares Owned	shared voting power	Signature	Title
RA Capital Management, L.P.	5.9%	8,641,031	8,641,031	/s/ Peter Kolchinsky	By Peter Kolchinsky, Authorized Signatory
Peter Kolchinsky	5.9%	8,641,031	8,641,031	/s/ Peter Kolchinsky	Peter Kolchinsky
Rajeev Shah	5.9%	8,641,031	8,641,031	/s/ Rajeev Shah	Rajeev Shah
RA Capital Healthcare Fund, L.P.	5.9%	8,641,031	8,641,031	/s/ Peter Kolchinsky	By RA Capital Healthcare Fund GP, LLC, its General Partner, By Peter Kolchinsky, Manager

CIK / CUSIP context first

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