0001950047-24-003645.txt : 20240514 0001950047-24-003645.hdr.sgml : 20240514 20240514162206 ACCESSION NUMBER: 0001950047-24-003645 CONFORMED SUBMISSION TYPE: 144 PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20240514 DATE AS OF CHANGE: 20240514 SUBJECT COMPANY: COMPANY DATA: COMPANY CONFORMED NAME: Avidity Biosciences, Inc. CENTRAL INDEX KEY: 0001599901 STANDARD INDUSTRIAL CLASSIFICATION: PHARMACEUTICAL PREPARATIONS [2834] ORGANIZATION NAME: 03 Life Sciences IRS NUMBER: 461336960 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 144 SEC ACT: 1933 Act SEC FILE NUMBER: 001-39321 FILM NUMBER: 24944722 BUSINESS ADDRESS: STREET 1: 10578 SCIENCE CENTER DRIVE STREET 2: SUITE 125 CITY: SAN DIEGO STATE: CA ZIP: 92121 BUSINESS PHONE: 858-401-7900 MAIL ADDRESS: STREET 1: 10578 SCIENCE CENTER DRIVE STREET 2: SUITE 125 CITY: SAN DIEGO STATE: CA ZIP: 92121 FORMER COMPANY: FORMER CONFORMED NAME: Avidity Biosciences LLC DATE OF NAME CHANGE: 20161227 FORMER COMPANY: FORMER CONFORMED NAME: Avidity NanoMedicines LLC DATE OF NAME CHANGE: 20140211 REPORTING-OWNER: COMPANY DATA: COMPANY CONFORMED NAME: MacLean Michael F CENTRAL INDEX KEY: 0001383731 ORGANIZATION NAME: FILING VALUES: FORM TYPE: 144 MAIL ADDRESS: STREET 1: 14 CAMBRIDGE CENTER CITY: CAMBRIDGE STATE: MA ZIP: 02142 144 1 primary_doc.xml 144 0001383731 XXXXXXXX LIVE 0001599901 Avidity Biosciences, Inc. 001-39321 10578 Science Center Drive, Suite 125 San Diego CA 92121 8584017900 MICHAEL MACLEAN Officer COMMON Morgan Stanley Smith Barney LLC Executive Financial Services

1 New York Plaza 8th Floor New York NY 10004

75000 1951500.00 95636748 05/14/2024 NASDAQ Common 05/14/2024 Exercise of Stock Options Issuer N 75000 05/14/2024 Cash N 10b5-1 Sales for MICHAEL MACLEAN

10578 Science Center Drive, Suite 125 San Diego CA 92121

COMMON 03/13/2024 40000 980760.00 05/14/2024 05/23/2023 /s/ Michael Maclean