RNA / Avidity Biosciences, Inc. - Документы SEC, Годовой отчет, Доверенное заявление

Avidity Biosciences, Inc.
US ˙ NasdaqGM ˙ US05370A1088

Основная статистика
CIK 1599901
SEC Filings
All companies that sell securities in the United States must register with the Securities and Exchange Commission (SEC) and file reports on a regular basis. These reports include company annual reports (10K, 10Q), news updates (8K), investor presentations (found in 8Ks), insider trades (form 4), ownership reports (13D, and 13G), and reports related to the specific securities sold, such as registration statements and prospectus. This page shows recent SEC filings related to Avidity Biosciences, Inc.
SEC Filings (Chronological Order)
На этой странице представлен полный хронологический список документов SEC, за исключением документов о собственности, которые мы предоставляем в других местах.
August 7, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 1, 2025 AVIDITY BIOSCIENCE

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 1, 2025 AVIDITY BIOSCIENCES, INC. (Exact name of registrant as specified in its charter) Delaware 001-39321 46-1336960 (State or other jurisdiction of incorporation or organiza

August 7, 2025 EX-99.1

Avidity Biosciences Reports Second Quarter 2025 Financial Results and Recent Highlights Aligned with FDA on del-brax accelerated and full approval pathways for FSHD, reported positive topline data from Phase 1/2 FORTITUDE™ trial, and initiated global

Exhibit 99.1 Avidity Biosciences Reports Second Quarter 2025 Financial Results and Recent Highlights Aligned with FDA on del-brax accelerated and full approval pathways for FSHD, reported positive topline data from Phase 1/2 FORTITUDE™ trial, and initiated global confirmatory Phase 3 study Planned del-zota BLA submission at year end 2025 for DMD44 on track to be Avidity’s first BLA submission On t

August 7, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED JUNE 30, 2025 or o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number 001-39321 Avidity Biosciences, Inc. (Exact name

July 23, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): July 23, 2025 AVIDITY BIOSCIENCES

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): July 23, 2025 AVIDITY BIOSCIENCES, INC. (Exact name of registrant as specified in its charter) Delaware 001-39321 46-1336960 (State or other jurisdiction of incorporation or organizat

June 10, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): June 10, 2025 AVIDITY BIOSCIENCES

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): June 10, 2025 AVIDITY BIOSCIENCES, INC. (Exact name of registrant as specified in its charter) Delaware 001-39321 46-1336960 (State or other jurisdiction of incorporation or organizat

June 9, 2025 EX-99.1

Forward-Looking Statements We caution the reader that this presentation contains forward-looking statements that involve substantial risks and uncertainties. All statements other than statements of historical fact contained in this presentation are f

EX-99.1 June 9, 2025 NASDAQ: RNA | aviditybio.com Investor & Analyst Event Series Delivering for People Living with Facioscapulohumeral Muscular Dystrophy (FSHD) Exhibit 99.1 Forward-Looking Statements We caution the reader that this presentation contains forward-looking statements that involve substantial risks and uncertainties. All statements other than statements of historical fact contained i

June 9, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): June 9, 2025 AVIDITY BIOSCIENCES,

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): June 9, 2025 AVIDITY BIOSCIENCES, INC. (Exact name of registrant as specified in its charter) Delaware 001-39321 46-1336960 (State or other jurisdiction of incorporation or organizati

May 8, 2025 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 8, 2025 AVIDITY BIOSCIENCES, INC. (Exact name of registrant as specified in its charter) Delaware 001-39321 46-1336960 (State or other jurisdiction of incorporation or organizatio

May 8, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED MARCH 31, 2025 or o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number 001-39321 Avidity Biosciences, Inc. (Exact name

May 8, 2025 EX-10.1

on-Employee Director Compensation P

rna-20250331xex101avidit Exhibit 10.1 1 AVIDITY BIOSCIENCES, INC. NON-EMPLOYEE DIRECTOR COMPENSATION PROGRAM (As Amended and Restated Effective April 1, 2025) Non-employee members of the board of directors (the “Board”) of Avidity Biosciences, Inc. (the “Company”) shall receive cash and equity compensation as set forth in this Non-Employee Director Compensation Program (as amended to date, this “P

May 8, 2025 EX-99.1

Avidity Biosciences Reports First Quarter 2025 Financial Results and Recent Highlights On track to deliver key regulatory updates for del-brax and topline data from dose escalation cohorts in the FORTITUDETM trial in the second quarter Positive topli

Exhibit 99.1 Avidity Biosciences Reports First Quarter 2025 Financial Results and Recent Highlights On track to deliver key regulatory updates for del-brax and topline data from dose escalation cohorts in the FORTITUDETM trial in the second quarter Positive topline del-zota data further supports first BLA submission at year end 2025 – continues to highlight reproducibility and consistency across t

May 8, 2025 EX-10.2

, by and between Turning Point Therapeutics, Inc. and the Registrant.

rna-20250331xex102firsta Exhibit 10.2 Certain identified information has been excluded from this exhibit because it is both not material and is the type that the registrant treats as private or confidential. Such omitted information has been noted in this document with a placeholder identified by the mark “[***]”. First Amendment to Sublease Agreement This First Amendment to Sublease Agreement (th

April 29, 2025 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant o Check the appropriate box: o Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) o Defin

April 29, 2025 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant o Check the appropriate box: o Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14

April 29, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): April 25, 2025 AVIDITY BIOSCIENCE

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): April 25, 2025 AVIDITY BIOSCIENCES, INC. (Exact name of registrant as specified in its charter) Delaware 001-39321 46-1336960 (State or other jurisdiction of incorporation or organiza

April 29, 2025 EX-16.1

Letter to Securities and Exchange Commission from BDO USA, P.C., dated April 28, 2025.

exhibit161 April 28, 2025 Securities and Exchange Commission 100 F Street N.E. Washington, D.C. 20549 We have been furnished with a copy of the response to Item 4.01 of Form 8-K for the event that occurred on April 25, 2025, to be filed by Avidity Biosciences, Inc. We agree with the statements made in response to that Item insofar as they relate to our Firm. Very truly yours, /s/ BDO USA, P.C.

March 25, 2025 8-K

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): March 19, 2025 AVIDITY BIOSCIENCES, INC. (Exact name of registrant as specified in its charter) Delaware 001-39321 46-1336960 (State or other jurisdiction of incorporation or organiza

March 17, 2025 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): March 17, 2025 AVIDITY BIOSCIENCE

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): March 17, 2025 AVIDITY BIOSCIENCES, INC. (Exact name of registrant as specified in its charter) Delaware 001-39321 46-1336960 (State or other jurisdiction of incorporation or organiza

March 17, 2025 EX-99.1

1 March 17, 2025 NASDAQ: RNA | aviditybio.com Investor & Analyst Event Transforming Duchenne Muscular Dystrophy (DMD) Del-zota EXPLORE44® Phase 1/2 Topline Data 2 We caution the reader that this presentation contains forward-looking statements that i

1 March 17, 2025 NASDAQ: RNA | aviditybio.com Investor & Analyst Event Transforming Duchenne Muscular Dystrophy (DMD) Del-zota EXPLORE44® Phase 1/2 Topline Data 2 We caution the reader that this presentation contains forward-looking statements that involve substantial risks and uncertainties. All statements other than statements of historical fact contained in this presentation are forward-looking

February 27, 2025 EX-10.12

Amended and Restated Employment Agreement, dated

Exhibit 10.12 US-DOCS\152924696.1 August 26, 2024 VIA EMAIL Steven Hughes, M.D. c/o Avidity Biosciences, Inc. 10578 Science Center Drive, Suite 125 San Diego, CA 92121 Re: Amended and Restated Employment Agreement Dear Steve: Avidity Biosciences, Inc. (the “Company”) and you entered into that certain Employment Agreement, dated as of December 22, 2021 (the “Prior Agreement”). The Company and you d

February 27, 2025 EX-99.1

Avidity Biosciences Reports Fourth Quarter 2024 Financial Results and Recent Highlights Building on success across its three clinical programs, Avidity is leading in rare neuromuscular diseases with a strong balance sheet to execute on a transformati

Exhibit 99.1 Avidity Biosciences Reports Fourth Quarter 2024 Financial Results and Recent Highlights Building on success across its three clinical programs, Avidity is leading in rare neuromuscular diseases with a strong balance sheet to execute on a transformational 2025 Major milestones anticipated for each rare neuromuscular program in 2025, including preparing for Avidity’s first BLA submissio

February 27, 2025 S-8

As filed with the Securities and Exchange Commission on February 27, 2025

As filed with the Securities and Exchange Commission on February 27, 2025 Registration No.

February 27, 2025 EX-10.13

Amended and Restated Employment Agreement, dated

Exhibit 10.13 US-DOCS\153613346.2 August 29, 2024 VIA EMAIL Kathleen Gallagher c/o Avidity Biosciences, Inc. 10578 Science Center Drive, Suite 125 San Diego, CA 92121 Re: Amended and Restated Employment Agreement Dear Kath: Avidity Biosciences, Inc. (the “Company”) and you entered into that certain Employment Agreement, dated as of April 22, 2021 (the “Prior Agreement”). The Company and you desire

February 27, 2025 EX-FILING FEES

Filing Fee Table

Exhibit 107 CALCULATION OF FILING FEE TABLE Form S-8 (Form Type) Avidity Biosciences, Inc.

February 27, 2025 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): February 27, 2025 AVIDITY BIOSCIENCES, INC. (Exact name of registrant as specified in its charter) Delaware 001-39321 46-1336960 (State or other jurisdiction of incorporation or organ

February 27, 2025 EX-10.15

Offer of Employment and

Exhibit 10.15 US-DOCS\156140015.2 December 12, 2024 VIA EMAIL Charles Calderaro III [email protected] Re: Offer of Employment and Employment Agreement Dear Chuck: Avidity Biosciences, Inc. (the “Company”) is pleased to offer you employment as the Company’s Chief Technology Officer on the terms and conditions set forth in this letter agreement (the “Agreement”). 1. Commencement of Emplo

February 27, 2025 EX-10.14

Amended and Restated Employment Agreement, dated

Exhibit 10.14 US-DOCS\152924874.1 August 26, 2024 VIA EMAIL Eric Mosbrooker c/o Avidity Biosciences, Inc. 10578 Science Center Drive, Suite 125 San Diego, CA 92121 Re: Amended and Restated Employment Agreement Dear Eric: Avidity Biosciences, Inc. (the “Company”) and you entered into that Employment Agreement, dated as of January 1, 2024 (the “Prior Agreement”). The Company and you desire to amend

February 27, 2025 EX-19.1

nsider Trading Compliance Policy and Procedures

Exhibit 19.1 1 Avidity Biosciences, Inc. Insider Trading Compliance Policy and Procedures (amended and restated as of February 19, 2025) Federal and state laws prohibit trading in the securities of a company while in possession of material nonpublic information and in breach of a duty of trust or confidence. These laws also prohibit anyone who is aware of material nonpublic information from provid

February 27, 2025 EX-10.20

ublease Agreement, dated April 29, 2024, by and between Turning Point Therapeutics, Inc. and

Exhibit 10.20 Certain identified information has been excluded from this exhibit because it is both not material and is the type that the registrant treats as private or confidential. Such omitted information has been noted in this document with a placeholder identified by the mark “[***]”. SUBLEASE AGREEMENT This Sublease Agreement (this “Sublease”) is made and entered as of April 29, 2024, by an

February 27, 2025 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-K (Mark One) x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE FISCAL YEAR ENDED DECEMBER 31, 2024 OR o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE TRANSITION PERIOD FROM TO Commission file number: 001-39321 AVIDITY BIOSCIENCES, INC.

January 8, 2025 8-K

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): January 8, 2025 AVIDITY BIOSCIENCES, INC. (Exact name of registrant as specified in its charter) Delaware 001-39321 46-1336960 (State or other jurisdiction of incorporation or organiz

November 14, 2024 SC 13G/A

RNA / Avidity Biosciences, Inc. / RA CAPITAL MANAGEMENT, L.P. - SC 13G/A Passive Investment

SC 13G/A 1 tm2427451d10sc13ga.htm SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13G/A Under the Securities Exchange Act of 1934 (Amendment No. 1)* Avidity Biosciences, Inc. (Name of Issuer) Common Stock, par value $0.0001 per share (Title of Class of Securities) 05370A108 (CUSIP Number) September 30, 2024 (Date of Event Which Requires Filing of this Stat

November 14, 2024 EX-99.1

Joint Filing Agreement

EX-99.1 2 tm2427451d10ex1.htm EXHIBIT 1 EXHIBIT 1 AGREEMENT This Joint Filing Agreement, dated as of November 14, 2024 is by and among RA Capital Management, L.P., Peter Kolchinsky, Rajeev Shah, and RA Capital Healthcare Fund, L.P. (the foregoing are collectively referred to herein as the “Filers”). Each of the Filers may be required to file with the United States Securities and Exchange Commissio

November 14, 2024 SC 13G

RNA / Avidity Biosciences, Inc. / Avoro Capital Advisors LLC - AVIDITY BIOSCIENCES, INC. Passive Investment

SC 13G 1 p24-3108sc13g.htm AVIDITY BIOSCIENCES, INC. SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* Avidity Biosciences, Inc. (Name of Issuer) Common Stock, $0.0001 par value (Title of Class of Securities) 05370A108 (CUSIP Number) September 30, 2024 (Date of Event Which Requires Filing of This Statement) Check the

November 14, 2024 EX-1

JOINT FILING AGREEMENT PURSUANT TO RULE 13d-1(k)

EX-1 2 p24-3108exhibit1.htm JOINT FILING AGREEMENT PURSUANT TO RULE 13D-1(K) EXHIBIT 1 JOINT FILING AGREEMENT PURSUANT TO RULE 13d-1(k) The undersigned acknowledge and agree that the foregoing statement on Schedule 13G is filed on behalf of each of the undersigned and that all subsequent amendments to this statement on Schedule 13G shall be filed on behalf of each of the undersigned without the ne

November 13, 2024 SC 13G/A

RNA / Avidity Biosciences, Inc. / Cowen Financial Products LLC - COWEN FINANCIAL PRODUCTS LLC Passive Investment

SC 13G/A 1 rnaa3111224.htm COWEN FINANCIAL PRODUCTS LLC UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 3)* Avidity Biosciences, Inc (Name of Issuer) Common Stock (Title of Class of Securities) 05370A108 (CUSIP Number) September 30, 2024 (Date of Event which Requires Filing of this Statement) Check the ap

November 13, 2024 SC 13G/A

RNA / Avidity Biosciences, Inc. / BRISTOL MYERS SQUIBB CO - SC 13G/A Passive Investment

SC 13G/A 1 ef20038544sc13ga.htm SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1)* Avidity Biosciences, Inc. (Name of Issuer) Common Stock, par value $0.0001 per share (Title of Class of Securities) 05370A108 (CUSIP Number) September 30, 2024 (Date of Event Which Requires Filing of this Statemen

November 12, 2024 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): November 12, 2024 AVIDITY BIOSCIENCES, INC. (Exact name of registrant as specified in its charter) Delaware 001-39321 46-1336960 (State or other jurisdiction of incorporation or organ

November 12, 2024 EX-99.1

1 Investor & Analyst Event Series – Volume 11 Precision Cardiology: Transforming Genetic Cardiomyopathy Treatment & First Look at Next-Generation Innovations November 12, 2024 NASDAQ: RNA | aviditybio.com 2 We caution the reader that this presentatio

1 Investor & Analyst Event Series – Volume 11 Precision Cardiology: Transforming Genetic Cardiomyopathy Treatment & First Look at Next-Generation Innovations November 12, 2024 NASDAQ: RNA | aviditybio.

November 8, 2024 EX-99

JOINT FILING AGREEMENT

EX-99 2 Rule13DJointFilingAgreement.htm JOINT FILING AGREEMENT JOINT FILING AGREEMENT The undersigned hereby agree that this Schedule 13G (the “Schedule 13G”) with respect to the common stock of Avidity Biosciences, Inc. is, and any additional amendment thereto signed by each of the undersigned shall be, filed on behalf of each undersigned pursuant to and in accordance with the provisions of 13d-1

November 8, 2024 SC 13G

RNA / Avidity Biosciences, Inc. / WELLINGTON MANAGEMENT GROUP LLP - SEC SCHEDULE 13G Passive Investment

SC 13G 1 SEC13GFiling.htm SEC SCHEDULE 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* Avidity Biosciences, Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 05370A108 (CUSIP Number) September 30, 2024 (Date of Event Which Requires Filing of this Statement) Check the appropriate box

November 7, 2024 EX-10.5

Amended and Restated Employment Agreement, dated August 26, 2024, by and between

rna-20240930xex105amende Exhibit 10.5 US-DOCS\152924232.1 August 26, 2024 VIA EMAIL Teresa McCarthy c/o Avidity Biosciences, Inc. 10578 Science Center Drive, Suite 125 San Diego, CA 92121 Re: Amended and Restated Employment Agreement Dear Teresa: Avidity Biosciences, Inc. (the “Company”) and you entered into that certain Employment Agreement, dated as of August 14, 2020 (the “Prior Agreement”). Th

November 7, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): November 7, 2024 AVIDITY BIOSCIENCES, INC. (Exact name of registrant as specified in its charter) Delaware 001-39321 46-1336960 (State or other jurisdiction of incorporation or organi

November 7, 2024 EX-10.6

Amended and Restated Employment Agreement, dated August 26, 2024, by and between

rna-20240930xex106amende Exhibit 10.6 US-DOCS\152924433.1 August 26, 2024 VIA EMAIL John B. Moriarty, Jr. c/o Avidity Biosciences, Inc. 10578 Science Center Drive, Suite 125 San Diego, CA 92121 Re: Amended and Restated Employment Agreement Dear John: Avidity Biosciences, Inc. (the “Company”) and you entered into that certain Employment Agreement, dated as of July 31, 2024 (the “Prior Agreement”).

November 7, 2024 EX-10.3

Amended and Restated Employment Agreement, dated August 26, 2024, by and between

rna-20240930xex103amende Exhibit 10.3 US-DOCS\152925120.1 August 26, 2024 VIA EMAIL Michael F. MacLean c/o Avidity Biosciences, Inc. 10578 Science Center Drive, Suite 125 San Diego, CA 92121 Re: Amended and Restated Employment Agreement Dear Mike: Avidity Biosciences, Inc. (the “Company”) and you entered into that certain Employment Agreement, dated as of May 14, 2020 (the “Prior Agreement”). The

November 7, 2024 EX-10.2

Amended and Restated Employment Agreement, dated August 26, 2024, by and between

rna-20240930xex102amende Exhibit 10.2 US-DOCS\150944263.7 August 26, 2024 Sarah Boyce c/o Avidity Biosciences, Inc. 10578 Science Center Drive, Suite 125 San Diego, CA 92121 Re: Amended and Restated Employment Agreement Dear Sarah: Avidity Biosciences, Inc. (the “Company”) and you entered into that certain Amended and Restated Employment Agreement, dated as of May 15, 2020 (the “Prior Agreement”).

November 7, 2024 EX-10.4

Amended and Restated Employment Agreement, dated August 26, 2024, by and between

rna-20240930xex104amende Exhibit 10.4 US-DOCS\152924018.1 August 26, 2024 VIA EMAIL W. Michael Flanagan, Ph.D. c/o Avidity Biosciences, Inc. 10578 Science Center Drive, Suite 125 San Diego, CA 92121 Re: Amended and Restated Employment Agreement Dear Mike: Avidity Biosciences, Inc. (the “Company”) and you entered into that certain Employment Agreement, dated as of December 8, 2020 (the “Prior Agree

November 7, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED SEPTEMBER 30, 2024 or o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number 001-39321 Avidity Biosciences, Inc. (Exact

November 7, 2024 EX-99.1

Avidity Biosciences Reports Third Quarter 2024 Financial Results and Recent Highlights Enrollment in global Phase 3 HARBORTM study for del-desiran in DM1 is on track Avidity initiated biomarker cohort for del-brax FORTITUDETM study for FSHD; pursuing

Exhibit 99.1 Avidity Biosciences Reports Third Quarter 2024 Financial Results and Recent Highlights Enrollment in global Phase 3 HARBORTM study for del-desiran in DM1 is on track Avidity initiated biomarker cohort for del-brax FORTITUDETM study for FSHD; pursuing a potential accelerated approval path for del-brax Reported positive del-zota data from Phase 1/2 EXPLORE44TM trial for DMD44 Avidity to

October 30, 2024 8-K

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): October 30, 2024 AVIDITY BIOSCIENCES, INC. (Exact name of registrant as specified in its charter) Delaware 001-39321 46-1336960 (State or other jurisdiction of incorporation or organi

October 3, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): October 3, 2024 AVIDITY BIOSCIENC

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): October 3, 2024 AVIDITY BIOSCIENCES, INC. (Exact name of registrant as specified in its charter) Delaware 001-39321 46-1336960 (State or other jurisdiction of incorporation or organiz

August 23, 2024 SC 13D/A

RNA / Avidity Biosciences, Inc. / RTW INVESTMENTS, LP - AVIDITY BIOSCIENCES, INC. Activist Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULE 13d-1(a) AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13d-2(a) Under the Securities Exchange Act of 1934 (Amendment No. 4) Avidity Biosciences, Inc. (Name of Issuer) Common Stock, par value $0.0001 per share (Title of Class of Securities) 05370A108 (CUSIP Number

August 15, 2024 EX-1.1

Underwriting Agreement, dated August 14, 2024, by and among Avidity Biosciences, Inc. and Leerink Partners LLC and TD Securities (USA) LLC, as representatives of the several underwriters named therein

Exhibit 1.1 7,320,000 Shares AVIDITY BIOSCIENCES, INC. Common Stock UNDERWRITING AGREEMENT August 14, 2024 LEERINK PARTNERS LLC TD SECURITIES (USA) LLC As Representatives of the several Underwriters c/o Leerink Partners LLC 53 State Street, 40th Floor Boston, MA 02109 c/o TD Securities (USA) LLC 1 Vanderbilt Avenue New York, New York 10017 Dear Sirs and Madams: 1. INTRODUCTORY. Avidity Biosciences

August 15, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 14, 2024 AVIDITY BIOSCIENC

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 14, 2024 AVIDITY BIOSCIENCES, INC. (Exact name of registrant as specified in its charter) Delaware 001-39321 46-1336960 (State or other jurisdiction of incorporation or organiz

August 15, 2024 424B5

7,320,000 Shares Common Stock

Filed Pursuant to Rule 424(b)(5) Registration No. 333-279264 PROSPECTUS SUPPLEMENT (To Prospectus dated May 9, 2024) 7,320,000 Shares Common Stock We are offering 7,320,000 shares of our common stock. Our common stock is listed on the Nasdaq Global Market under the symbol “RNA.” On August 14, 2024, the last reported sales price of our common stock on the Nasdaq Global Market was $42.85 per share o

August 15, 2024 EX-FILING FEES

Calculation of Filing Fee Table Form 424(b)(5) (Form Type) Avidity Biosciences, Inc. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities

Exhibit 107 Calculation of Filing Fee Table Form 424(b)(5) (Form Type) Avidity Biosciences, Inc.

August 15, 2024 EX-99.2

Avidity Biosciences Announces Pricing of Upsized Public Offering of Common Stock SAN DIEGO, August 14, 2024 /PRNewswire/ – Avidity Biosciences, Inc. (Nasdaq: RNA), a biopharmaceutical company committed to delivering a new class of RNA therapeutics ca

Avidity Biosciences Announces Pricing of Upsized Public Offering of Common Stock SAN DIEGO, August 14, 2024 /PRNewswire/ – Avidity Biosciences, Inc.

August 15, 2024 EX-99.1

Avidity Biosciences Announces Proposed Public Offering of Common Stock SAN DIEGO, August 13, 2024 /PRNewswire/ – Avidity Biosciences, Inc. (Nasdaq: RNA), a biopharmaceutical company committed to delivering a new class of RNA therapeutics called Antib

Avidity Biosciences Announces Proposed Public Offering of Common Stock SAN DIEGO, August 13, 2024 /PRNewswire/ – Avidity Biosciences, Inc.

August 13, 2024 424B5

PRELIMINARY PROSPECTUS SUPPLEMENT (Subject to Completion) Dated August 13, 2024

Table of Contents Filed Pursuant to Rule 424(b)(5) Registration No. 333-279264 The information in this preliminary prospectus supplement is not complete and may be changed. A registration statement relating to these securities has been declared effective by the Securities and Exchange Commission. This preliminary prospectus supplement and the accompanying prospectus are not an offer to sell these

August 9, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED JUNE 30, 2024 or o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number 001-39321 Avidity Biosciences, Inc. (Exact name

August 9, 2024 EX-99.1

1 August 9, 2024 NASDAQ: RNA | aviditybio.com Investor & Analyst Event Series – Volume 10 Transforming Duchenne Muscular Dystrophy (DMD) AOC 1044 EXPLORE44TM Phase 1/2 Initial Data 2 We caution the reader that this presentation contains forward-looki

1 August 9, 2024 NASDAQ: RNA | aviditybio.com Investor & Analyst Event Series – Volume 10 Transforming Duchenne Muscular Dystrophy (DMD) AOC 1044 EXPLORE44TM Phase 1/2 Initial Data 2 We caution the reader that this presentation contains forward-looking statements that involve substantial risks and uncertainties. All statements other than statements of historical fact contained in this presentation

August 9, 2024 S-8

As filed with the Securities and Exchange Commission on August 9, 2024

S-8 1 d895147ds8.htm S-8 As filed with the Securities and Exchange Commission on August 9, 2024 Registration No. 333- UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM S-8 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 AVIDITY BIOSCIENCES, INC. (Exact name of registrant as specified in its charter) Delaware 46-1336960 (State or Other Jurisdiction of Incorporatio

August 9, 2024 EX-FILING FEES

Filing Fee Table

Exhibit 107 CALCULATION OF FILING FEE TABLE Form S-8 (Form Type) Avidity Biosciences, Inc.

August 9, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 9, 2024 AVIDITY BIOSCIENCE

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 9, 2024 AVIDITY BIOSCIENCES, INC. (Exact name of registrant as specified in its charter) Delaware 001-39321 46-1336960 (State or other jurisdiction of incorporation or organiza

August 9, 2024 EX-99.1

Avidity Biosciences Reports Second Quarter 2024 Financial Results and Recent Highlights Avidity reports positive del-zota (AOC 1044) data; demonstrated 25% increase in dystrophin production and reduction of creatine kinase levels to near normal in pe

Exhibit 99.1 Avidity Biosciences Reports Second Quarter 2024 Financial Results and Recent Highlights Avidity reports positive del-zota (AOC 1044) data; demonstrated 25% increase in dystrophin production and reduction of creatine kinase levels to near normal in people living with DMD44 in Phase 1/2 EXPLORE44™ trial Initiated global Phase 3 HARBOR™ trial and began administration of del-desiran in pe

August 9, 2024 EX-10.2

Sales Agreement, dated August 9, 2024, by and between Avidity Biosciences, Inc. and TD Securities (USA) LLC

Exhibit 10.2 AVIDITY BIOSCIENCES, INC. $400,000,000 COMMON STOCK SALES AGREEMENT August 9, 2024 TD Securities (USA) LLC 1 Vanderbilt Avenue New York, New York 10017 Ladies and Gentlemen: Avidity Biosciences, Inc., a Delaware corporation (the “Company”), confirms its agreement (this “Agreement”) with TD Securities (USA) LLC (“TD Cowen”), as follows: 1. Issuance and Sale of Placement Shares. The Com

August 9, 2024 EX-FILING FEES

Calculation of Filing Fee Table Form S-3 (Form Type) Avidity Biosciences, Inc. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities

Exhibit 107 Calculation of Filing Fee Table Form S-3 (Form Type) Avidity Biosciences, Inc.

August 9, 2024 424B5

$400,000,000 Common Stock

424B5 1 d851103d424b5.htm 424B5 Table of Contents Filed Pursuant to Rule 424(b)(5) Registration No. 333-279264 PROSPECTUS SUPPLEMENT (To Prospectus dated May 9, 2024) $400,000,000 Common Stock We have entered into a sales agreement, or the Sales Agreement, with TD Securities (USA) LLC, or TD Cowen, relating to shares of our common stock, par value $0.0001 per share, offered by this prospectus supp

August 9, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 9, 2024 AVIDITY BIOSCIENCE

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 9, 2024 AVIDITY BIOSCIENCES, INC. (Exact name of registrant as specified in its charter) Delaware 001-39321 46-1336960 (State or other jurisdiction of incorporation or organiza

June 14, 2024 EX-99.2

Exhibit 99.2 Avidity Biosciences, Inc. Announces Pricing of Public Offering of Common Stock SAN DIEGO, June 13, 2024 /PRNewswire/ – Avidity Biosciences, Inc. (Nasdaq: RNA), a biopharmaceutical company committed to delivering a new class of RNA therap

Exhibit 99.2 Avidity Biosciences, Inc. Announces Pricing of Public Offering of Common Stock SAN DIEGO, June 13, 2024 /PRNewswire/ – Avidity Biosciences, Inc. (Nasdaq: RNA), a biopharmaceutical company committed to delivering a new class of RNA therapeutics called Antibody Oligonucleotide Conjugates (AOCs™), today announced the pricing of an underwritten public offering of 10,550,000 shares of its

June 14, 2024 EX-1.1

Underwriting Agreement, dated June 13, 2024, by and among Avidity Biosciences, Inc. and TD Securities (USA) LLC and Leerink Partners LLC, as representatives of the several underwriters named therein

Exhibit 1.1 10,550,000 Shares AVIDITY BIOSCIENCES, INC. Common Stock UNDERWRITING AGREEMENT June 13, 2024 TD SECURITIES (USA) LLC LEERINK PARTNERS LLC As Representatives of the several Underwriters c/o TD Securities (USA) LLC 1 Vanderbilt Avenue New York, New York 10017 c/o Leerink Partners LLC 53 State Street, 40th Floor Boston, MA 02109 Dear Sirs and Madams: 1. INTRODUCTORY. Avidity Biosciences,

June 14, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): June 13, 2024 AVIDITY BIOSCIENCES

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): June 13, 2024 AVIDITY BIOSCIENCES, INC. (Exact name of registrant as specified in its charter) Delaware 001-39321 46-1336960 (State or other jurisdiction of incorporation or organizat

June 14, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): June 13, 2024 AVIDITY BIOSCIENCES

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): June 13, 2024 AVIDITY BIOSCIENCES, INC. (Exact name of registrant as specified in its charter) Delaware 001-39321 46-1336960 (State or other jurisdiction of incorporation or organizat

June 14, 2024 EX-99.1

Exhibit 99.1 Avidity Biosciences, Inc. Announces Proposed Public Offering of Common Stock SAN DIEGO, June 12, 2024 /PRNewswire/ – Avidity Biosciences, Inc. (Nasdaq: RNA), a biopharmaceutical company committed to delivering a new class of RNA therapeu

Exhibit 99.1 Avidity Biosciences, Inc. Announces Proposed Public Offering of Common Stock SAN DIEGO, June 12, 2024 /PRNewswire/ – Avidity Biosciences, Inc. (Nasdaq: RNA), a biopharmaceutical company committed to delivering a new class of RNA therapeutics called Antibody Oligonucleotide Conjugates (AOCs™), today announced that it intends to offer and sell, subject to market and other conditions, $3

June 14, 2024 424B5

10,550,000 Shares Common Stock

Table of Contents Filed Pursuant to Rule 424(b)(5) Registration No. 333-279264 PROSPECTUS SUPPLEMENT (To Prospectus dated May 9, 2024) 10,550,000 Shares Common Stock We are offering 10,550,000 Shares of our common stock. Our common stock is listed on the Nasdaq Global Market under the symbol “RNA.” On June 13, 2024, the last reported sales price of our common stock on the Nasdaq Global Market was

June 14, 2024 EX-FILING FEES

Calculation of Filing Fee Tables (Form Type) Avidity Biosciences, Inc. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registe

Exhibit 107 Calculation of Filing Fee Tables 424(b)(5) (Form Type) Avidity Biosciences, Inc.

June 12, 2024 EX-10.1

Amendment to Avidity Biosciences, Inc. 2022 Employment Inducement Incentive

Exhibit 10.1 AMENDMENT TO THE AVIDITY BIOSCIENCES, INC. 2022 EMPLOYMENT INDUCEMENT INCENTIVE AWARD PLAN THIS AMENDMENT TO THE AVIDITY BIOSCIENCES, INC. 2022 EMPLOYMENT INDUCEMENT INCENTIVE AWARD PLAN (this “Amendment”), effective as of June 10, 2024, is made and adopted by Avidity Biosciences, Inc., a Delaware corporation (the “Company”). Capitalized terms used but not otherwise defined herein sha

June 12, 2024 424B5

$300,000,000 Common Stock

Table of Contents Filed Pursuant to Rule 424(b)(5) Registration No. 333-279264 The information in this preliminary prospectus supplement is not complete and may be changed. A registration statement relating to these securities has been declared effective by the Securities and Exchange Commission. This preliminary prospectus supplement and the accompanying prospectus are not an offer to sell these

June 12, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): June 10, 2024 AVIDITY BIOSCIENCES

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): June 10, 2024 AVIDITY BIOSCIENCES, INC. (Exact name of registrant as specified in its charter) Delaware 001-39321 46-1336960 (State or other jurisdiction of incorporation or organizat

June 12, 2024 EX-99.1

1 June 12, 2024 NASDAQ: RNA | aviditybio.com Investor & Analyst Event Series – Volume 9 Transforming Facioscapulohumeral Muscular Dystrophy (FSHD) AOC 1020 FORTITUDETM Phase 1/2 Initial Data 2 Forward-Looking Statements We caution the reader that thi

1 June 12, 2024 NASDAQ: RNA | aviditybio.com Investor & Analyst Event Series – Volume 9 Transforming Facioscapulohumeral Muscular Dystrophy (FSHD) AOC 1020 FORTITUDETM Phase 1/2 Initial Data 2 Forward-Looking Statements We caution the reader that this presentation contains forward-looking statements that involve substantial risks and uncertainties. All statements other than statements of historica

May 15, 2024 8-K

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 14, 2024 AVIDITY BIOSCIENCES, INC. (Exact name of registrant as specified in its charter) Delaware 001-39321 46-1336960 (State or other jurisdiction of incorporation or organizati

May 15, 2024 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Defin

May 9, 2024 EX-10.1

mended and Restated Non-Employee Director Com

Exhibit 10.1 AVIDITY BIOSCIENCES, INC. NON-EMPLOYEE DIRECTOR COMPENSATION PROGRAM (As Amended and Restated Effective April 19, 2024) Non-employee members of the board of directors (the “Board”) of Avidity Biosciences, Inc. (the “Company”) shall receive cash and equity compensation as set forth in this Non-Employee Director Compensation Program (as amended to date, this “Program”). This Program has

May 9, 2024 EX-FILING FEES

Filing Fee Table

Exhibit 107 Calculation of Filing Fee Table Form S-3 (Form Type) Avidity Biosciences, Inc.

May 9, 2024 EX-99.1

Avidity Biosciences Reports First Quarter 2024 Financial Results and Recent Highlights Initiation of global Phase 3 HARBOR™ trial for del-desiran (AOC 1001) in DM1 on track for this quarter Avidity to report FSHD data from FORTITUDE™ trial this quart

Exhibit 99.1 Avidity Biosciences Reports First Quarter 2024 Financial Results and Recent Highlights Initiation of global Phase 3 HARBOR™ trial for del-desiran (AOC 1001) in DM1 on track for this quarter Avidity to report FSHD data from FORTITUDE™ trial this quarter and DMD data from EXPLORE44™ trial in 2H24 Presented positive long-term del-desiran data from MARINA-OLE™ showing reversal of disease

May 9, 2024 10-Q

Form 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED MARCH 31, 2024 or o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number 001-39321 Avidity Biosciences, Inc. (Exact name

May 9, 2024 S-3ASR

As filed with the Securities and Exchange Commission on May 9, 2024

As filed with the Securities and Exchange Commission on May 9, 2024 Registration No.

May 9, 2024 EX-4.4

Form of Indenture

Exhibit 4.4 AVIDITY BIOSCIENCES, INC. INDENTURE Dated as of , 20 [ ] Trustee TABLE OF CONTENTS Page ARTICLE I. DEFINITIONS AND INCORPORATION BY REFERENCE 1 Section 1.1. Definitions. 1 Section 1.2. Other Definitions. 5 Section 1.3. Incorporation by Reference of Trust Indenture Act. 5 Section 1.4. Rules of Construction. 6 ARTICLE II. THE SECURITIES 6 Section 2.1. Issuable in Series. 6 Section 2.2. E

May 9, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 9, 2024 AVIDITY BIOSCIENCES, INC. (Exact name of registrant as specified in its charter) Delaware 001-39321 46-1336960 (State or other jurisdiction of incorporation or organizatio

May 6, 2024 SC 13G

RNA / Avidity Biosciences, Inc. / RA CAPITAL MANAGEMENT, L.P. - SC 13G Passive Investment

SC 13G 1 tm2413656d1sc13g.htm SC 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* Avidity Biosciences, Inc. (Name of Issuer) Common Stock, par value $0.0001 per share (Title of Class of Securities) 05370A108 (CUSIP Number) April 26, 2024 (Date of Event Which Requires Filing of this Statement) Check

April 26, 2024 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant o Check the appropriate box: o Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) o Defin

April 26, 2024 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant o Check the appropriate box: o Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14

April 2, 2024 S-3ASR

As filed with the Securities and Exchange Commission on April 2, 2024

As filed with the Securities and Exchange Commission on April 2, 2024 Registration No.

April 2, 2024 EX-FILING FEES

Filing Fee Table

Exhibit 107 Calculation of Filing Fee Table Form S-3 (Form Type) Avidity Biosciences, Inc.

March 4, 2024 EX-99.1

Investor & Analyst Event Series – Volume 8 TRANSFORMING MYOTONIC DYSTROPHY Global Phase 3 HARBOR Trial & Long-term MARINA-OLE Data March 4, 2024 NASDAQ: RNA | aviditybio.com 2 Forward-Looking Statements We caution the reader that this presentation co

Investor & Analyst Event Series – Volume 8 TRANSFORMING MYOTONIC DYSTROPHY Global Phase 3 HARBOR Trial & Long-term MARINA-OLE Data March 4, 2024 NASDAQ: RNA | aviditybio.

March 4, 2024 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): March 4, 2024 AVIDITY BIOSCIENCES, INC. (Exact name of registrant as specified in its charter) Delaware 001-39321 46-1336960 (State or other jurisdiction of incorporation or organizat

March 1, 2024 SC 13D/A

RNA / Avidity Biosciences, Inc. / RTW INVESTMENTS, LP - AVIDITY BIOSCIENCES, INC. Activist Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULE 13d-1(a) AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13d-2(a) Under the Securities Exchange Act of 1934 (Amendment No. 3) Avidity Biosciences, Inc. (Name of Issuer) Common Stock, par value $0.0001 per share (Title of Class of Securities) 05370A108 (CUSIP Number

February 29, 2024 EX-FILING FEES

Filing Fee Table

Exhibit 107 Calculation of Filing Fee Tables Form S-8 (Form Type) Avidity Biosciences, Inc.

February 29, 2024 EX-4.1

Form of Pre-Funded Warrant

Exhibit 4.1 THE SECURITIES EVIDENCED BY THIS CERTIFICATE HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), OR ANY OTHER APPLICABLE SECURITIES LAWS AND HAVE BEEN ISSUED IN RELIANCE UPON AN EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT AND SUCH OTHER SECURITIES LAWS. NEITHER THIS SECURITY NOR ANY INTEREST OR PARTICIPATION HEREIN MAY BE

February 29, 2024 8-K

Regulation FD Disclosure, Entry into a Material Definitive Agreement, Unregistered Sales of Equity Securities, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): February 28, 2024 AVIDITY BIOSCIENCES, INC. (Exact name of registrant as specified in its charter) Delaware 001-39321 46-1336960 (State or other jurisdiction of incorporation or organ

February 29, 2024 EX-99.1

Avidity Biosciences Announces Oversubscribed $400 Million Private Placement Funding from new and existing investors, including Adage Capital Partners LP, Boxer Capital, Casdin Capital, LLC, Farallon, Janus Henderson Investors, RA Capital Management,

Exhibit 99.1 Avidity Biosciences Announces Oversubscribed $400 Million Private Placement Funding from new and existing investors, including Adage Capital Partners LP, Boxer Capital, Casdin Capital, LLC, Farallon, Janus Henderson Investors, RA Capital Management, RTW Investments, Wellington Management, as well as multiple large investment management firms Pro forma cash, cash equivalents and invest

February 29, 2024 EX-10.1

ary 28, 2024, by and between Avidity Biosciences, Inc. and each of the purchasers party thereto

Exhibit 10.1 AVIDITY BIOSCIENCES, INC. SECURITIES PURCHASE AGREEMENT This Securities Purchase Agreement (the “Agreement”) is made as of February 28, 2024 (the “Effective Date”), by and between Avidity Biosciences, Inc., a Delaware corporation (the “Company”), and each of the purchasers whose names are set forth on Schedule A hereto (each, a “Purchaser” and, collectively, the “Purchasers”). Whereas

February 29, 2024 S-8

As filed with the Securities and Exchange Commission on February 29, 2024

As filed with the Securities and Exchange Commission on February 29, 2024 Registration No.

February 28, 2024 EX-97.1

Avidity Biosciences, Inc. Policy for Recovery of Erroneously Awarded Compensation.

Exhibit 97.1 AVIDITY BIOSCIENCES POLICY FOR RECOVERY OF ERRONEOUSLY AWARDED COMPENSATION Avidity Biosciences, Inc. (the “Company”) has adopted this Policy for Recovery of Erroneously Awarded Compensation (this “Policy”), effective as of October 2, 2023 (the “Effective Date”). Capitalized terms used in this Policy but not otherwise defined herein are defined in Section 11. 1.Persons Subject to Poli

February 28, 2024 EX-10.2

Avidity Biosciences, Inc. 2020 Incentive Award Plan, including forms of grant notices and agreements thereunder

Exhibit 10.2 AVIDITY BIOSCIENCES, INC. 2020 INCENTIVE AWARD PLAN ARTICLE I. PURPOSE The Plan’s purpose is to enhance the Company’s ability to attract, retain and motivate persons who make (or are expected to make) important contributions to the Company by providing these individuals with equity ownership opportunities. Capitalized terms used in the Plan are defined in Article XI. ARTICLE II. ELIGI

February 28, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): February 28, 2024 AVIDITY BIOSCIE

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): February 28, 2024 AVIDITY BIOSCIENCES, INC. (Exact name of registrant as specified in its charter) Delaware 001-39321 46-1336960 (State or other jurisdiction of incorporation or organ

February 28, 2024 EX-FILING FEES

Filing Fee Table

Exhibit 107 Calculation of Filing Fee Table Form S-3 (Form Type) Avidity Biosciences, Inc.

February 28, 2024 EX-10.14

ecurities Purchase Agreement, dated November 27, 2023, by and between Bristol

Exhibit 10.14 Certain identified information has been excluded from this exhibit because it is both not material and is the type that the registrant treats as private or confidential. Such omitted information has been noted in this document with a placeholder identified by the mark “[***]”. SECURITIES PURCHASE AGREEMENT This Securities Purchase Agreement (this “Agreement”) is dated as of November

February 28, 2024 S-3ASR

As filed with the Securities and Exchange Commission on February 28, 2024

As filed with the Securities and Exchange Commission on February 28, 2024 Registration No.

February 28, 2024 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-K (Mark One) x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE FISCAL YEAR ENDED DECEMBER 31, 2023 OR o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE TRANSITION PERIOD FROM TO Commission file number: 001-39321 AVIDITY BIOSCIENCES, INC.

February 28, 2024 EX-99.1

Avidity Biosciences Reports Fourth Quarter and Year-End 2023 Financial Results and Recent Highlights Avidity is on-track to initiate global Phase 3 HARBOR™ trial of AOC 1001 for DM1 in mid-2024 Company to share first-look at long-term efficacy and sa

Exhibit 99.1 Avidity Biosciences Reports Fourth Quarter and Year-End 2023 Financial Results and Recent Highlights Avidity is on-track to initiate global Phase 3 HARBOR™ trial of AOC 1001 for DM1 in mid-2024 Company to share first-look at long-term efficacy and safety data from MARINA-OLE™ trial in people living with DM1 at MDA Clinical & Scientific Conference and via webcast on March 4, 2024 Avidi

February 28, 2024 EX-21.1

Subsidiaries of the Registrant.

Exhibit 21.1 Subsidiaries Entity Name State or Other Jurisdiction of Organization Avidity Biosciences Ireland Limited Republic of Ireland

February 28, 2024 EX-10.13

esearch Collaboration and License Agreement, dated November 27, 2023, by and between Bristol

Exhibit 10.13 Certain identified information has been excluded from this exhibit because it is both not material and is the type that the registrant treats as private or confidential. Such omitted information has been noted in this document with a placeholder identified by the mark “[***]”. RESEARCH COLLABORATION AND LICENSE AGREEMENT between AVIDITY BIOSCIENCES, INC. and BRISTOL MYERS SQUIBB COMP

February 14, 2024 EX-99.1

Exhibit 1: Joint filing agreement

EX-99.1 2 tm246065d5ex1.htm EXHIBIT 1 EXHIBIT 1 AGREEMENT This Joint Filing Agreement, dated as of February 14, 2024, is by and among RA Capital Management, L.P., Peter Kolchinsky, Rajeev Shah, and RA Capital Healthcare Fund, L.P. (the foregoing are collectively referred to herein as the “Filers”). Each of the Filers may be required to file with the United States Securities and Exchange Commission

February 14, 2024 SC 13G/A

RNA / Avidity Biosciences, Inc. / RA CAPITAL MANAGEMENT, L.P. - SC 13G/A Passive Investment

SC 13G/A 1 tm246065d5sc13ga.htm SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13G/A Under the Securities Exchange Act of 1934 (Amendment No. 1)* AVIDITY BIOSCIENCES, INC. (Name of Issuer) Common Stock, $0.0001 par value per share (Title of Class of Securities) 05370A108 (CUSIP Number) December 31, 2023 (Date of Event Which Requires Filing of this Stateme

February 13, 2024 SC 13G/A

RNA / Avidity Biosciences, Inc. / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 1)* Name of issuer: Avidity Biosciences Inc Title of Class of Securities: Common Stock CUSIP Number: 05370A108 Date of Event Which Requires Filing of this Statement: December 29, 2023 Check the appropriate box to designate the rule pursuant to which this Schedule is file

February 9, 2024 SC 13G/A

RNA / Avidity Biosciences, Inc. / FMR LLC Passive Investment

SCHEDULE 13G Amendment No.6 AVIDITY BIOSCIENCES INC COMMON STOCK Cusip #05370A108 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: [x] Rule 13d-1(b) [ ] Rule 13d-1(c) [ ] Rule 13d-1(d) Cusip #05370A108 Item 1: Reporting Person - FMR LLC Item 2: (a) [ ] (b) [ ] Item 4: Delaware Item 5: 10,400,902 Item 6: 0 Item 7: 10,404,096 Item 8: 0 Item 9: 10,404,096 Item

February 2, 2024 SC 13G/A

RNA / Avidity Biosciences, Inc. / Cowen Financial Products LLC - COWEN FINANCIAL PRODUCTS LLC Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 2)* Avidity Biosciences, Inc (Name of Issuer) Common Stock (Title of Class of Securities) 05370A108 (CUSIP Number) December 29, 2023 (Date of Event which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which thi

January 24, 2024 SC 13D/A

RNA / Avidity Biosciences, Inc. / RTW INVESTMENTS, LP - AVIDITY BIOSCIENCES, INC. Activist Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULE 13d-1(a) AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13d-2(a) Under the Securities Exchange Act of 1934 (Amendment No. 2) Avidity Biosciences, Inc. (Name of Issuer) Common Stock, par value $0.0001 per share (Title of Class of Securities) 05370A108 (CUSIP Number

January 5, 2024 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): December 31, 2023 AVIDITY BIOSCIE

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): December 31, 2023 AVIDITY BIOSCIENCES, INC. (Exact name of registrant as specified in its charter) Delaware 001-39321 46-1336960 (State or other jurisdiction of incorporation or organ

December 14, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): December 13, 2023 AVIDITY BIOSCIE

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): December 13, 2023 AVIDITY BIOSCIENCES, INC. (Exact name of registrant as specified in its charter) Delaware 001-39321 46-1336960 (State or other jurisdiction of incorporation or organ

December 13, 2023 EX-3.2

Amended and Restated Bylaws (marked

cpredline-avidityxboard AMENDED AND RESTATED BYLAWS OF AVIDITY BIOSCIENCES, INC. (a Delaware corporation) As Amended and Restated December 12, 2023 Exhibit 3.2 -i- TABLE OF CONTENTS Page ARTICLE I - CORPORATE OFFICES ............................................................................................... 1 1.1 REGISTERED OFFICE ...............................................................

December 13, 2023 EX-3.1

Amended and Restated Bylaws

avidity-arbylawsasofdece Exhibit 3.1 AMENDED AND RESTATED BYLAWS OF AVIDITY BIOSCIENCES, INC. (a Delaware corporation) As Amended and Restated December 12, 2023 -i- TABLE OF CONTENTS Page ARTICLE I - CORPORATE OFFICES ............................................................................................... 1 1.1 REGISTERED OFFICE ..............................................................

December 13, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): December 12, 2023 AVIDITY BIOSCIE

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): December 12, 2023 AVIDITY BIOSCIENCES, INC. (Exact name of registrant as specified in its charter) Delaware 001-39321 46-1336960 (State or other jurisdiction of incorporation or organ

December 4, 2023 SC 13G

RNA / Avidity Biosciences Inc / BRISTOL MYERS SQUIBB CO - SC 13G Passive Investment

SC 13G 1 ef20016011sc13g.htm SC 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No.)* Avidity Biosciences, Inc. (Name of Issuer) Common Stock, par value $0.0001 per share (Title of Class of Securities) 05370A108 (CUSIP Number) November 27, 2023 (Date of Event Which Requires Filing of This Statement) Check

November 28, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): November 27, 2023 AVIDITY BIOSCIE

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): November 27, 2023 AVIDITY BIOSCIENCES, INC. (Exact name of registrant as specified in its charter) Delaware 001-39321 46-1336960 (State or other jurisdiction of incorporation or organ

November 8, 2023 EX-99.1

Avidity Biosciences Reports Third Quarter 2023 Financial Results and Recent Highlights Avidity reported new positive AOC 1001 data at World Muscle Society (WMS) Congress in October demonstrating consistent improvement in multiple additional functiona

Exhibit 99.1 Avidity Biosciences Reports Third Quarter 2023 Financial Results and Recent Highlights Avidity reported new positive AOC 1001 data at World Muscle Society (WMS) Congress in October demonstrating consistent improvement in multiple additional functional endpoints and favorable long-term safety and tolerability in people living with myotonic dystrophy type 1 (DM1) AOC 1044 receives Orpha

November 8, 2023 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): November 8, 2023 AVIDITY BIOSCIENCES, INC. (Exact name of registrant as specified in its charter) Delaware 001-39321 46-1336960 (State or other jurisdiction of incorporation or organi

November 8, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED SEPTEMBER 30, 2023 or o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number 001-39321 Avidity Biosciences, Inc. (Exact

October 10, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): October 7, 2023 AVIDITY BIOSCIENC

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): October 7, 2023 AVIDITY BIOSCIENCES, INC. (Exact name of registrant as specified in its charter) Delaware 001-39321 46-1336960 (State or other jurisdiction of incorporation or organiz

August 8, 2023 EX-99.1

Avidity Biosciences Reports Second Quarter 2023 Financial Results and Recent Highlights Advancing three clinical development programs – DM1, DMD, FSHD - with data anticipated from each program over the next 12 months

Exhibit 99.1 Avidity Biosciences Reports Second Quarter 2023 Financial Results and Recent Highlights Advancing three clinical development programs – DM1, DMD, FSHD - with data anticipated from each program over the next 12 months SAN DIEGO, Aug. 8, 2023 /PRNewswire/- Avidity Biosciences, Inc. (Nasdaq: RNA), a biopharmaceutical company committed to delivering a new class of RNA therapeutics called

August 8, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED JUNE 30, 2023 or o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number 001-39321 Avidity Biosciences, Inc. (Exact name

August 8, 2023 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 8, 2023 AVIDITY BIOSCIENCES, INC. (Exact name of registrant as specified in its charter) Delaware 001-39321 46-1336960 (State or other jurisdiction of incorporation or organiza

July 10, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): July 10, 2023 AVIDITY BIOSCIENCES

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): July 10, 2023 AVIDITY BIOSCIENCES, INC. (Exact name of registrant as specified in its charter) Delaware 001-39321 46-1336960 (State or other jurisdiction of incorporation or organizat

June 16, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): June 15, 2023 AVIDITY BIOSCIENCES

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): June 15, 2023 AVIDITY BIOSCIENCES, INC. (Exact name of registrant as specified in its charter) Delaware 001-39321 46-1336960 (State or other jurisdiction of incorporation or organizat

May 17, 2023 8-K

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 17, 2023 AVIDITY BIOSCIENCES, INC. (Exact name of registrant as specified in its charter) Delaware 001-39321 46-1336960 (State or other jurisdiction of incorporation or organizati

May 9, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 9, 2023 AVIDITY BIOSCIENCES,

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 9, 2023 AVIDITY BIOSCIENCES, INC. (Exact name of registrant as specified in its charter) Delaware 001-39321 46-1336960 (State or other jurisdiction of incorporation or organizatio

May 9, 2023 EX-10.1

Amended and Restated Non-Employee Director Compensation Program

Exhibit 10.1 AVIDITY BIOSCIENCES, INC. NON-EMPLOYEE DIRECTOR COMPENSATION PROGRAM (As Amended and Restated Effective April 25, 2023) Non-employee members of the board of directors (the “Board”) of Avidity Biosciences, Inc. (the “Company”) shall receive cash and equity compensation as set forth in this Non-Employee Director Compensation Program (as amended to date, this “Program”). This Program has

May 9, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED MARCH 31, 2023 or o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number 001-39321 Avidity Biosciences, Inc. (Exact name

May 9, 2023 EX-99.1

Avidity Biosciences Reports First Quarter 2023 Financial Results and Recent Highlights Positive Topline Data from AOC 1001 Phase 1/2 MARINA™ Trial Demonstrated Functional Improvement, Disease Modification and Favorable Safety and Tolerability Profile

Exhibit 99.1 Avidity Biosciences Reports First Quarter 2023 Financial Results and Recent Highlights Positive Topline Data from AOC 1001 Phase 1/2 MARINA™ Trial Demonstrated Functional Improvement, Disease Modification and Favorable Safety and Tolerability Profile in People Living with Myotonic Dystrophy Type 1 Advancing three programs in clinical trials with data expected later this year - first l

April 28, 2023 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant o Check the appropriate box: o Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) o Defin

April 28, 2023 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant o Check the appropriate box: o Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14

April 27, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): April 27, 2023 AVIDITY BIOSCIENCE

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): April 27, 2023 AVIDITY BIOSCIENCES, INC. (Exact name of registrant as specified in its charter) Delaware 001-39321 46-1336960 (State or other jurisdiction of incorporation or organiza

April 27, 2023 EX-99.1

1 Investor & Analyst Event Series – Volume 7 AOC 1001 MARINATM Phase 1/2 Topline Data Kristl, Zen & Loraine living with DM1 Nathan living with DMD Josh living with FSHD 2 Forward-Looking Statements We caution the reader that this presentation contain

a04-27x23vol7marinatopli 1 Investor & Analyst Event Series – Volume 7 AOC 1001 MARINATM Phase 1/2 Topline Data Kristl, Zen & Loraine living with DM1 Nathan living with DMD Josh living with FSHD 2 Forward-Looking Statements We caution the reader that this presentation contains forward-looking statements that involve substantial risks and uncertainties.

March 30, 2023 8-K

Regulation FD Disclosure, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): March 30, 2023 AVIDITY BIOSCIENCES, INC. (Exact name of registrant as specified in its charter) Delaware 001-39321 46-1336960 (State or other jurisdiction of incorporation or organiza

February 28, 2023 EX-99.1

Avidity Biosciences Reports Fourth Quarter and Year-End 2022 Financial Results and Recent Highlights

Exhibit 99.1 Avidity Biosciences Reports Fourth Quarter and Year-End 2022 Financial Results and Recent Highlights SAN DIEGO, February 28, 2023 / PRNewswire/ - Avidity Biosciences, Inc. (Nasdaq: RNA), a biopharmaceutical company committed to delivering a new class of RNA therapeutics called Antibody Oligonucleotide Conjugates (AOCs™), today reported financial results for the fourth quarter and year

February 28, 2023 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): February 28, 2023 AVIDITY BIOSCIE

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): February 28, 2023 AVIDITY BIOSCIENCES, INC. (Exact name of registrant as specified in its charter) Delaware 001-39321 46-1336960 (State or other jurisdiction of incorporation or organ

February 28, 2023 EX-10.2

Avidity Biosciences, Inc. 2020 Incentive Award Plan, including form of stock option grant notice and stock option agreement and form of restricted stock unit grant notice and restricted stock unit agreement thereunder.

Exhibit 10.2 AVIDITY BIOSCIENCES, INC. 2020 INCENTIVE AWARD PLAN ARTICLE I. PURPOSE The Plan’s purpose is to enhance the Company’s ability to attract, retain and motivate persons who make (or are expected to make) important contributions to the Company by providing these individuals with equity ownership opportunities. Capitalized terms used in the Plan are defined in Article XI. ARTICLE II. ELIGI

February 28, 2023 EX-10.5

Avidity Biosciences, Inc. 2022 Employment Inducement Incentive Award Plan, including form of stock option grant notice and stock option agreement and form of restricted stock unit grant notice and restricted stock unit agreement thereunder.

Exhibit 10.5 AVIDITY BIOSCIENCES, INC. 2022 EMPLOYMENT INDUCEMENT INCENTIVE AWARD PLAN ARTICLE I. PURPOSE The Plan’s purpose is to enhance the Company’s ability to attract, retain and motivate Eligible Persons who are expected to make important contributions to the Company by providing these individuals with equity ownership opportunities. Capitalized terms used in the Plan are defined in Article

February 28, 2023 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-K

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-K (Mark One) x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE FISCAL YEAR ENDED DECEMBER 31, 2022 OR o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE TRANSITION PERIOD FROM TO Commission file number: 001-39321 AVIDITY BIOSCIENCES, INC.

February 28, 2023 EX-10.7

Employment Letter Agreement, dated February 23, 2023, by and between Arthur A. Levin, Ph.D. and the Registrant.

Exhibit 10.7 February 23, 2023 Arthur A. Levin, Ph.D. c/o Avidity Biosciences, Inc. 10578 Science Center Drive, Suite 125 San Diego, CA 92121 Re: Second Amended and Restated Employment Agreement Dear Art: Avidity Biosciences, Inc. (the “Company”) and you entered into that certain Amended and Restated Employment Agreement, dated as of May 15, 2020 (the “Original Agreement”). The Company and you des

February 23, 2023 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): February 22, 2023 AVIDITY BIOSCIENCES, INC. (Exact name of registrant as specified in its charter) Delaware 001-39321 46-1336960 (State or other jurisdiction of incorporation or organ

February 14, 2023 SC 13G/A

RNA / Prosensa Holding N.v. In Liquidatie / EcoR1 Capital, LLC Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 2) Avidity Biosciences, Inc. (Name of Issuer) Common Stock, par value $0.0001 per share (Title of Class of Securities) 05370A108 (CUSIP Number) December 31, 2022 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate t

February 9, 2023 SC 13G

RNA / Prosensa Holding N.v. In Liquidatie / VANGUARD GROUP INC - SCHEDULE 13G Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 Name of issuer: Avidity Biosciences Inc. Title of Class of Securities: Common Stock CUSIP Number: 05370A108 Date of Event Which Requires Filing of this Statement: December 30, 2022 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ☒ Rule 13d-1(b)

February 3, 2023 SC 13G

RNA / Prosensa Holding N.v. In Liquidatie / STATE STREET CORP Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13G UNDER THE SECURITIES EXCHANGE ACT OF 1934 INITIAL FILING AVIDITY BIOSCIENCES INC (NAME OF ISSUER) COMMON STOCK (TITLE OF CLASS OF SECURITIES) 05370A108 (CUSIP NUMBER) 12/31/2022 (DATE OF EVENT WHICH REQUIRES FILING OF THIS STATEMENT) CHECK THE APPROPRIATE BOX TO DESIGNATE THE RULE PURSUANT TO WHICH THIS SCHEDULE I

February 2, 2023 SC 13D/A

RNA / Prosensa Holding N.v. In Liquidatie / RTW INVESTMENTS, LP - AVIDITY BIOSCIENCES, INC. Activist Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULE 13d-1(a) AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13d-2(a) Under the Securities Exchange Act of 1934 (Amendment No. 1) Avidity Biosciences, Inc. (Name of Issuer) Common Stock, par value $0.0001 per share (Title of Class of Securities) 05370A108 (CUSIP Number

January 11, 2023 SC 13G/A

RNA / Prosensa Holding N.v. In Liquidatie / Cowen Financial Products LLC - COWEN FINANCIAL PRODUCTS LLC Passive Investment

SC 13G/A 1 rnaa111123.htm COWEN FINANCIAL PRODUCTS LLC UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1)* Avidity Biosciences, Inc (Name of Issuer) Common Stock (Title of Class of Securities) 05370A108 (CUSIP Number) December 30, 2022 (Date of Event which Requires Filing of this Statement) Check the appr

December 30, 2022 SC 13G

RNA / Prosensa Holding N.v. In Liquidatie / RA CAPITAL MANAGEMENT, L.P. - SC 13G Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* AVIDITY BIOSCIENCES, INC. (Name of Issuer) Common Stock, $0.0001 par value per share (Title of Class of Securities) 05370A108 (CUSIP Number) December 20, 2022 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate t

December 27, 2022 SC 13G

RNA / Prosensa Holding N.v. In Liquidatie / Cormorant Asset Management, LP Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* Avidity Biosciences, Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 05370A108 (CUSIP Number) December 14, 2022 (Date of Event which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which thi

December 27, 2022 EX-99.1

JOINT FILING AGREEMENT

Exhibit 99.1 JOINT FILING AGREEMENT This Joint Filing Agreement, dated as of December 27, 2022, is by and among Cormorant Global Healthcare Master Fund, LP, Cormorant Global Healthcare GP, LLC, Cormorant Private Healthcare Fund II, LP, Cormorant Private Healthcare GP II, LLC, Cormorant Asset Management, LP and Bihua Chen (collectively, the ?Filers?). Each of the Filers may be required to file with

December 21, 2022 S-8

As filed with the Securities and Exchange Commission on December 21, 2022

S-8 As filed with the Securities and Exchange Commission on December 21, 2022 Registration No.

December 21, 2022 EX-10.2

Avidity Biosciences, Inc. 2022 Employee Inducement Incentive Award Plan, including form of stock option grant notice and stock option agreement and form of restricted stock unit grant notice and restricted stock unit agreement thereunder

EX-10.2 Exhibit 10.2 AVIDITY BIOSCIENCES, INC. 2022 EMPLOYMENT INDUCEMENT INCENTIVE AWARD PLAN ARTICLE I. PURPOSE The Plan’s purpose is to enhance the Company’s ability to attract, retain and motivate Eligible Persons who are expected to make important contributions to the Company by providing these individuals with equity ownership opportunities. Capitalized terms used in the Plan are defined in

December 21, 2022 EX-FILING FEES

Filing Fee Table

EX-FILING FEES Exhibit 107 Calculation of Filing Fee Tables Form S-8 (Form Type) Avidity Biosciences, Inc.

December 16, 2022 424B5

12,000,000 Shares Common Stock

424B5 Table of Contents Filed Pursuant to Rule 424(b)(5) Registration No. 333-257691 PROSPECTUS SUPPLEMENT (To Prospectus dated July 2, 2021) 12,000,000 Shares Common Stock We are offering 12,000,000 shares of our common stock. Our common stock is listed on the Nasdaq Global Market under the symbol “RNA.” On December 15, 2022, the last reported sales price of our common stock on the Nasdaq Global

December 16, 2022 EX-99.2

Avidity Biosciences, Inc. Announces Pricing of Upsized Public Offering of Common Stock

EX-99.2 Exhibit 99.2 Avidity Biosciences, Inc. Announces Pricing of Upsized Public Offering of Common Stock SAN DIEGO, December 15, 2022 /PRNewswire/ – Avidity Biosciences, Inc. (Nasdaq: RNA), a biopharmaceutical company committed to delivering a new class of RNA therapeutics called Antibody Oligonucleotide Conjugates (AOCs™), today announced the pricing of an underwritten public offering of 12,00

December 16, 2022 EX-1.1

Underwriting Agreement, dated December 15, 2022, by and among Avidity Biosciences, Inc. and Cowen and Company, LLC, Evercore Group L.L.C., and Wells Fargo Securities, LLC, as representatives of the several underwriters named therein

EX-1.1 2 d407691dex11.htm EX-1.1 Exhibit 1.1 12,000,000 Shares AVIDITY BIOSCIENCES, INC. Common Stock UNDERWRITING AGREEMENT December 15, 2022 COWEN AND COMPANY, LLC EVERCORE GROUP L.L.C. WELLS FARGO SECURITIES, LLC As Representatives of the several Underwriters c/o Cowen and Company, LLC 599 Lexington Avenue New York, New York 10022 c/o Evercore Group L.L.C. 55 East 52nd Street New York, New York

December 16, 2022 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): December 15, 2022 AVIDITY BIOSCIE

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): December 15, 2022 AVIDITY BIOSCIENCES, INC. (Exact name of registrant as specified in its charter) Delaware 001-39321 46-1336960 (State or other jurisdiction of incorporation or organ

December 16, 2022 EX-FILING FEES

Calculation of Filing Fee Tables (Form Type) Avidity Biosciences, Inc. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward R

EX-FILING FEES 2 d432139dexfilingfees.htm EX107 Exhibit 107 Calculation of Filing Fee Tables 424(b)(5) (Form Type) Avidity Biosciences, Inc. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate

December 16, 2022 EX-99.1

Avidity Biosciences, Inc. Announces Proposed Public Offering of Common Stock

EX-99.1 Exhibit 99.1 Avidity Biosciences, Inc. Announces Proposed Public Offering of Common Stock SAN DIEGO, December 15, 2022 /PRNewswire/ – Avidity Biosciences, Inc. (Nasdaq: RNA), a biopharmaceutical company committed to delivering a new class of RNA therapeutics called Antibody Oligonucleotide Conjugates (AOCs™), today announced that it intends to offer and sell, subject to market and other co

December 15, 2022 424B5

$150,000,000 Common Stock

424B5 Table of Contents Filed Pursuant to Rule 424(b)(5) Registration No. 333-257691 The information in this preliminary prospectus supplement is not complete and may be changed. A registration statement relating to these securities has been declared effective by the Securities and Exchange Commission. This preliminary prospectus supplement and the accompanying prospectus are not an offer to sell

December 14, 2022 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): December 14, 2022 AVIDITY BIOSCIE

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): December 14, 2022 AVIDITY BIOSCIENCES, INC. (Exact name of registrant as specified in its charter) Delaware 001-39321 46-1336960 (State or other jurisdiction of incorporation or organ

December 14, 2022 EX-99.1

Forward Looking Statements We caution the reader that this presentation contains forward-looking statements that involve substantial risks and uncertainties. All statements other than statements of historical facts contained in this presentation, inc

EX-99.1 Virtual Investor & Analyst Event Series – Volume 6: AOC 1001 MARINATM Phase 1/2 Trial Preliminary Data Assessment Exhibit 99.1 Forward Looking Statements We caution the reader that this presentation contains forward-looking statements that involve substantial risks and uncertainties. All statements other than statements of historical facts contained in this presentation, including, but not

December 5, 2022 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): December 1, 2022 AVIDITY BIOSCIENCES, INC. (Exact name of registrant as specified in its charter) Delaware 001-39321 46-1336960 (State or other jurisdiction of incorporation or organi

November 8, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED SEPTEMBER 30, 2022 or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number 001-39321 Avidity Biosciences, Inc. (Exact name of registrant

November 8, 2022 EX-FILING FEES

Calculation of Filing Fee Tables (Form Type) Avidity Biosciences, Inc. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward R

Exhibit 107 Calculation of Filing Fee Tables 424(b)(5) (Form Type) Avidity Biosciences, Inc.

November 8, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): November 8, 2022 AVIDITY BIOSCIENCES, INC. (Exact name of registrant as specified in its charter) Delaware 001-39321 46-1336960 (State or other jurisdiction of incorporation or organi

November 8, 2022 EX-99.1

Avidity Biosciences Reports Third Quarter 2022 Financial Results and Recent Highlights Company has three distinct rare disease programs in clinical development - myotonic dystrophy type 1 (DM1), facioscapulohumeral muscular dystrophy (FSHD), and Duch

Exhibit 99.1 Avidity Biosciences Reports Third Quarter 2022 Financial Results and Recent Highlights Company has three distinct rare disease programs in clinical development - myotonic dystrophy type 1 (DM1), facioscapulohumeral muscular dystrophy (FSHD), and Duchenne muscular dystrophy (DMD) On track for preliminary assessment of AOC 1001 MARINATM trial in fourth quarter SAN DIEGO, November 8, 202

November 8, 2022 424B5

$200,000,000 Common Stock

Table of Contents Filed Pursuant to Rule 424(b)(5) Registration No. 333-257691 PROSPECTUS SUPPLEMENT (To Prospectus dated July 2, 2021) $200,000,000 Common Stock We have entered into a sales agreement, or the Sales Agreement, with Cowen and Company, LLC, or Cowen, relating to shares of our common stock, par value $0.0001 per share, offered by this prospectus supplement. In accordance with the term

November 8, 2022 EX-10.1

Sales Agreement, dated November 8, 2022, between Avidity Biosciences, Inc. and Cowen and Company, LLC

Exhibit 10.1 Execution Version Avidity Biosciences, Inc. $200,000,000 COMMON STOCK SALES AGREEMENT November 8, 2022 Cowen and Company, LLC 599 Lexington Avenue New York, NY 10022 Ladies and Gentlemen: Avidity Biosciences, Inc., a Delaware corporation (the “Company”), confirms its agreement (this “Agreement”) with Cowen and Company, LLC (“Cowen”), as follows: 1. Issuance and Sale of Placement Share

October 13, 2022 8-K

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): October 13, 2022 AVIDITY BIOSCIENCES, INC. (Exact name of registrant as specified in its charter) Delaware 001-39321 46-1336960 (State or other jurisdiction of incorporation or organi

October 4, 2022 8-K

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): October 3, 2022 AVIDITY BIOSCIENCES, INC. (Exact name of registrant as specified in its charter) Delaware 001-39321 46-1336960 (State or other jurisdiction of incorporation or organiz

September 27, 2022 8-K

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): September 27, 2022 AVIDITY BIOSCIENCES, INC. (Exact name of registrant as specified in its charter) Delaware 001-39321 46-1336960 (State or other jurisdiction of incorporation or orga

August 18, 2022 SC 13G

RNA / Prosensa Holding N.v. In Liquidatie / Cowen Financial Products LLC - COWEN FINANCIAL PRODUCTS LLC Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 Avidity Biosciences, Inc (Name of Issuer) Common Stock (Title of Class of Securities) 05370A108 (CUSIP Number) August 05, 2022 (Date of Event which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

August 9, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED JUNE 30, 2022 or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number 001-39321 Avidity Biosciences, Inc. (Exact name of registrant as s

August 9, 2022 EX-99.1

Avidity Biosciences Reports Second Quarter 2022 Financial Results and Recent Highlights Company remains on track to have three programs in the clinic by the end of this year Programs are for three distinct rare diseases - myotonic dystrophy type 1 (D

Exhibit 99.1 Avidity Biosciences Reports Second Quarter 2022 Financial Results and Recent Highlights Company remains on track to have three programs in the clinic by the end of this year Programs are for three distinct rare diseases - myotonic dystrophy type 1 (DM1), facioscapulohumeral muscular dystrophy (FSHD) and Duchenne muscular dystrophy (DMD) SAN DIEGO, August 9, 2022 / PRNewswire/- Avidity

August 9, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 9, 2022 AVIDITY BIOSCIENCES, INC. (Exact name of registrant as specified in its charter) Delaware 001-39321 46-1336960 (State or other jurisdiction of incorporation or organiza

August 9, 2022 EX-10.1

Amended and Restated Non-Employee Director Compensation Policy.

Exhibit 10.1 AVIDITY BIOSCIENCES, INC. NON-EMPLOYEE DIRECTOR COMPENSATION PROGRAM (As Amended and Restated Effective June 2, 2022) Non-employee members of the board of directors (the ?Board?) of Avidity Biosciences, Inc. (the ?Company?) shall receive cash and equity compensation as set forth in this Non-Employee Director Compensation Program (as amended to date, this ?Program?). This Program has b

June 17, 2022 8-K

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): June 15, 2022 AVIDITY BIOSCIENCES, INC. (Exact name of registrant as specified in its charter) Delaware 001-39321 46-1336960 (State or other jurisdiction of incorporation or organizat

May 10, 2022 EX-99.1

Avidity Biosciences Reports First Quarter 2022 Financial Results and Recent Highlights

Exhibit 99.1 Avidity Biosciences Reports First Quarter 2022 Financial Results and Recent Highlights SAN DIEGO, May 10, 2022 / PRNewswire/- Avidity Biosciences, Inc. (Nasdaq: RNA), a biopharmaceutical company committed to delivering a new class of RNA therapeutics called Antibody Oligonucleotide Conjugates (AOCs?), today announced financial results for the first quarter ended March 31, 2022 and hig

May 10, 2022 S-8

As filed with the Securities and Exchange Commission on May 10, 2022

As filed with the Securities and Exchange Commission on May 10, 2022 Registration No.

May 10, 2022 10-Q

Form 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED MARCH 31, 2022 or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number 001-39321 Avidity Biosciences, Inc. (Exact name of registrant as

May 10, 2022 EX-10.1

Employment Agreement, dated August 14, 2020, by and between Teresa McCarthy and the Registrant.

Exhibit 10.1 August 14, 2020 Teresa McCarthy c/o Avidity Biosciences, Inc. 10975 N. Torrey Pines Rd., Suite 150 La Jolla, CA 92037 Re:Offer of Employment Dear Teresa: Avidity Biosciences, Inc. (the "Company") is pleased to offer you employment as the Company's Chief Human Resources Officer on the terms and conditions set forth in this letter agreement (the "Agreement"). 1.Commencement of Employmen

May 10, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 10, 2022 AVIDITY BIOSCIENCES, INC. (Exact name of registrant as specified in its charter) Delaware 001-39321 46-1336960 (State or other jurisdiction of incorporation or organizati

May 10, 2022 EX-FILING FEES

Filing Fee Table

Exhibit 107 Calculation of Filing Fee Tables Form S-8 (Form Type) Avidity Biosciences, Inc.

April 29, 2022 DEF 14A

Definitive Proxy Statement

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of the Commission Only (as permitted by Rule 14

April 29, 2022 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ? Defin

March 1, 2022 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): March 1, 2022 AVIDITY BIOSCIENCES, INC. (Exact name of registrant as specified in its charter) Delaware 001-39321 46-1336960 (State or other jurisdiction of incorporation or organizat

March 1, 2022 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-K (Mark One) ? ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE FISCAL YEAR ENDED DECEMBER 31, 2021 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE TRANSITION PERIOD FROM TO Commission file number: 001-39321 AVIDITY BIOSCIENCES, INC.

March 1, 2022 EX-10.12

Consulting Agreement, dated January 22, 2022, by and between Joseph Baroldi and the Registrant

Exhibit 10.12 CONSULTING AGREEMENT (Non-HCP) This Consulting Agreement (the ?Agreement?) is entered into and effective 22 January 2022 (the ?Effective Date?) by and between Joseph Baroldi (?Consultant?) and Avidity Biosciences, Inc. (?Avidity?), a Delaware corporation, with offices located at 10578 Science Center Drive, Suite 125, San Diego, California 92121, USA. Consultant and Avidity shall be r

March 1, 2022 EX-99.1

Avidity Biosciences Reports Fourth Quarter and Year-End 2021 Financial Results and Recent Highlights

Exhibit 99.1 Avidity Biosciences Reports Fourth Quarter and Year-End 2021 Financial Results and Recent Highlights SAN DIEGO, March 1, 2022 /PRNewswire/- Avidity Biosciences, Inc. (Nasdaq: RNA), a biopharmaceutical company committed to delivering a new class of RNA therapeutics called Antibody Oligonucleotide Conjugates (AOCs?), today reported financial results for the fourth quarter and year ended

February 14, 2022 SC 13G

RNA / Prosensa Holding N.v. In Liquidatie / FEDERATED HERMES, INC. Passive Investment

OMB APPROVAL OMB Number: 3235-0145 Estimated average burden hours per response ?.11 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. *) AVIDITY BIOSCIENCES LLC (Name of Issuer) COMMON STOCK (Title of Class of Securities) 05370A108 (CUSIP Number) December 31, 2021 (Date of Event Which Requires Filing of thi

February 14, 2022 SC 13G/A

RNA / Prosensa Holding N.v. In Liquidatie / EcoR1 Capital, LLC Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1) Avidity Biosciences, Inc. (Name of Issuer) Common Stock, par value $0.0001 per share (Title of Class of Securities) 05370A108 (CUSIP Number) December 31, 2021 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate t

February 14, 2022 SC 13G/A

RNA / Prosensa Holding N.v. In Liquidatie / Cormorant Asset Management, LP Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 2)* Avidity Biosciences, Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 05370A108 (CUSIP Number) December 31, 2021 (Date of Event which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which th

February 10, 2022 EX-99.1

Power of Attorney

Exhibit 99.1 Power of Attorney The undersigned, ELI LILLY AND COMPANY, a corporation duly organized under the laws of the State of Indiana, United States (the ?Company?), does hereby make, constitute and appoint each of Anat Hakim, Christopher Anderson and Jonathan Groff acting severally, as its true and lawful attorneys-in-fact, for the purpose of, from time to time, executing in its name and on

February 10, 2022 SC 13G/A

RNA / Prosensa Holding N.v. In Liquidatie / ELI LILLY & Co - SC 13G/A Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G/A Under the Securities Exchange Act of 1934 (Amendment No: 1)* Avidity Biosciences, Inc. (Name of Issuer) Common Stock, $0.0001 par value (Title of Class of Securities) 05370A108 (CUSIP Number) December 31, 2021 (Date of Event which Requires Filing of this Statement) Check the appropriate box to designate the rule

January 6, 2022 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): January 4, 2022 AVIDITY BIOSCIENCES, INC. (Exact name of registrant as specified in its charter) Delaware 001-39321 46-1336960 (State or other jurisdiction of incorporation or organiz

December 9, 2021 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): December 9, 2021 AVIDITY BIOSCIENCES, INC. (Exact name of registrant as specified in its charter) Delaware 001-39321 46-1336960 (State or other jurisdiction of incorporation or organi

December 9, 2021 EX-99.1

Forward Looking Statements We caution the reader that this presentation contains forward-looking statements that involve substantial risks and uncertainties. All statements other than statements of historical facts contained in this presentation, inc

Virtual Investor & Analyst Event Series ? Volume 3 Delivering on AOCs: FSHD Exhibit 99.

November 9, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): November 9, 2021 AVIDITY BIOSCIENCES, INC. (Exact name of registrant as specified in its charter) Delaware 001-39321 46-1336960 (State or other jurisdiction of incorporation or organi

November 9, 2021 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED SEPTEMBER 30, 2021 or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number 001-39321 Avidity Biosciences, Inc. (Exact name of registrant

November 9, 2021 EX-99.1

Avidity Biosciences Reports Third Quarter 2021 Financial Results and Recent Highlights Initiated the Phase 1/2 MARINATM trial of AOC 1001, marking the first AOC in clinical development On track to have three clinical programs by the end of 2022 Volum

Exhibit 99.1 Avidity Biosciences Reports Third Quarter 2021 Financial Results and Recent Highlights Initiated the Phase 1/2 MARINATM trial of AOC 1001, marking the first AOC in clinical development On track to have three clinical programs by the end of 2022 Volume 3, Virtual Investor and Analyst Series, on December 9 at 11am ET featuring Jeffrey Statland, M.D., an expert and leading physician trea

November 9, 2021 EX-10.2

General Release of Claims, dated August 30, 2021, by and between Avidity Biosciences, Inc. and Jae B. Kim, M.D.

Exhibit 10.2 GENERAL RELEASE OF CLAIMS THIS GENERAL RELEASE OF CLAIMS (this ?Release?) is entered into by and between Avidity Biosciences, Inc., a Delaware corporation (the ?Company?), and Jae B. Kim, M.D. (?Executive?), as of the Effective Date (as defined below). WHEREAS, the Company and Executive are parties to that certain employment letter agreement dated as of July 6, 2020 (the ?Employment A

September 1, 2021 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 26, 2021 AVIDITY BIOSCIENCES, INC. (Exact name of registrant as specified in its charter) Delaware 001-39321 46-1336960 (State or other jurisdiction of incorporation or organiz

August 25, 2021 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 24, 2021 AVIDITY BIOSCIENCES, INC. (Exact name of registrant as specified in its charter) Delaware 001-39321 46-1336960 (State or other jurisdiction of incorporation or organiz

August 9, 2021 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED JUNE 30, 2021 or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number 001-39321 Avidity Biosciences, Inc. (Exact name of registrant as s

August 9, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 9, 2021 AVIDITY BIOSCIENCES, INC. (Exact name of registrant as specified in its charter) Delaware 001-39321 46-1336960 (State or other jurisdiction of incorporation or organiza

August 9, 2021 EX-99.1

Avidity Biosciences Reports Second Quarter 2021 Financial Results and Recent Highlights

Exhibit 99.1 Avidity Biosciences Reports Second Quarter 2021 Financial Results and Recent Highlights LA JOLLA, Calif., Aug. 9, 2021 /PRNewswire/- Avidity Biosciences, Inc. (Nasdaq: RNA), a biopharmaceutical company committed to delivering a new class of RNA therapeutics called Antibody Oligonucleotide Conjugates (AOCs?), today reported financial results for the second quarter and six months ended

August 4, 2021 EX-99.1

Avidity Biosciences, Inc. Announces Proposed Public Offering of Common Stock

Exhibit 99.1 Avidity Biosciences, Inc. Announces Proposed Public Offering of Common Stock LA JOLLA, Calif., August 2, 2021 /PRNewswire/ ? Avidity Biosciences, Inc. (Nasdaq: RNA), a biopharmaceutical company committed to delivering a new class of RNA therapeutics called Antibody Oligonucleotide Conjugates (AOCs?), today announced that it intends to offer and sell, subject to market and other condit

August 4, 2021 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 3, 2021 AVIDITY BIOSCIENCES, INC. (Exact name of registrant as specified in its charter) Delaware 001-39321 46-1336960 (State or other jurisdiction of incorporation or organiza

August 4, 2021 424B5

CALCULATION OF REGISTRATION FEE TITLE OF EACH CLASS OF SECURITIES TO BE REGISTERED AMOUNT TO BE REGISTERED PROPOSED MAXIMUM OFFERING PRICE PER SHARE PROPOSED MAXIMUM AGGREGATE OFFERING PRICE AMOUNT OF REGISTRATION FEE(2) Common Stock, $0.0001 par val

Table of Contents Filed Pursuant to Rule 424(b)(5) Registration No. 333-257691 CALCULATION OF REGISTRATION FEE TITLE OF EACH CLASS OF SECURITIES TO BE REGISTERED AMOUNT TO BE REGISTERED PROPOSED MAXIMUM OFFERING PRICE PER SHARE PROPOSED MAXIMUM AGGREGATE OFFERING PRICE AMOUNT OF REGISTRATION FEE(2) Common Stock, $0.0001 par value per share 9,200,000(1) $18.00 $165,600,000 $18,067 (1) Includes shar

August 4, 2021 EX-1.1

Underwriting Agreement, dated August 3, 2021, by and among Avidity Biosciences, Inc. and Cowen and Company, LLC, SVB Leerink LLC, Evercore Group L.L.C., and Wells Fargo Securities, LLC, as representatives of the several underwriters named therein

Exhibit 1.1 8,000,000 Shares AVIDITY BIOSCIENCES, INC. Common Stock UNDERWRITING AGREEMENT August 3, 2021 COWEN AND COMPANY, LLC SVB LEERINK LLC EVERCORE GROUP L.L.C. WELLS FARGO SECURITIES, LLC As Representatives of the several Underwriters c/o Cowen and Company, LLC 599 Lexington Avenue New York, New York 10022 c/o SVB Leerink LLC 53 State Street, 40th Floor Boston, Massachusetts 02109 c/o Everc

August 4, 2021 EX-99.2

Avidity Biosciences, Inc. Announces Pricing of Public Offering of Common Stock

Exhibit 99.2 Avidity Biosciences, Inc. Announces Pricing of Public Offering of Common Stock LA JOLLA, Calif., August 3, 2021 /PRNewswire/ ? Avidity Biosciences, Inc. (Nasdaq: RNA), a biopharmaceutical company committed to delivering a new class of RNA therapeutics called Antibody Oligonucleotide Conjugates (AOCs?), today announced the pricing of an underwritten public offering of 8,000,000 shares

August 2, 2021 EX-99.1

Forward Looking Statements We caution the reader that this presentation contains forward-looking statements that involve substantial risks and uncertainties. All statements other than statements of historical facts contained in this presentation, inc

Virtual Investor & Analyst Event Series ? Volume 2 : AOC 1001 Exhibit 99.1 Forward Looking Statements We caution the reader that this presentation contains forward-looking statements that involve substantial risks and uncertainties. All statements other than statements of historical facts contained in this presentation, including statements regarding our future results of operations and financial

August 2, 2021 8-K

Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 2, 2021 AVIDITY BIOSCIENCES, INC. (Exact name of registrant as specified in its charter) Delaware 001-39321 46-1336960 (State or other jurisdiction of incorporation or organiza

August 2, 2021 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 2, 2021 AVIDITY BIOSCIENCES, INC. (Exact name of registrant as specified in its charter) Delaware 001-39321 46-1336960 (State or other jurisdiction of incorporation or organiza

August 2, 2021 424B5

PRELIMINARY PROSPECTUS SUPPLEMENT (Subject to Completion) Dated August 2, 2021 PRELIMINARY PROSPECTUS SUPPLEMENT (To Prospectus dated July 2, 2021) Common Stock

Table of Contents Filed Pursuant to Rule 424(b)(5) Registration No. 333-257691 The information in this preliminary prospectus supplement is not complete and may be changed. A registration statement relating to these securities has been declared effective by the Securities and Exchange Commission. This preliminary prospectus supplement and the accompanying prospectus are not an offer to sell these

July 2, 2021 EX-4.4

Form of Indenture

Exhibit 4.4 AVIDITY BIOSCIENCES, INC. INDENTURE Dated as of , 20 [ ] Trustee TABLE OF CONTENTS Page ARTICLE I. DEFINITIONS AND INCORPORATION BY REFERENCE 1 Section 1.1. Definitions 1 Section 1.2. Other Definitions 4 Section 1.3. Incorporation by Reference of Trust Indenture Act 4 Section 1.4. Rules of Construction 5 ARTICLE II. THE SECURITIES 5 Section 2.1. Issuable in Series 5 Section 2.2. Establ

July 2, 2021 8-K

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): July 2, 2021 AVIDITY BIOSCIENCES, INC. (Exact name of registrant as specified in its charter) Delaware 001-39321 46-1336960 (State or other jurisdiction of incorporation or organizati

July 2, 2021 S-3ASR

As filed with the Securities and Exchange Commission on July 2, 2021

Table of Contents As filed with the Securities and Exchange Commission on July 2, 2021 Registration No.

July 2, 2021 EX-1.1

Sales Agreement, dated July 2, 2021, between Avidity Biosciences, Inc. and Cowen and Company, LLC

Exhibit 1.1 Execution Version AVIDITY BIOSCIENCES, INC. $150,000,000 OF SHARES OF COMMON STOCK PAR VALUE $0.0001 PER SHARE SALES AGREEMENT July 2, 2021 Cowen and Company, LLC 599 Lexington Avenue New York, NY 10022 Ladies and Gentlemen: Avidity Biosciences, Inc., a Delaware corporation (the ?Company?), confirms its agreement (this ?Agreement?) with Cowen and Company, LLC (?Cowen?), as follows: 1.

July 2, 2021 EX-1.2

Sales Agreement, dated July 2, 2021, by and between the Company and Cowen and Company, LLC

Exhibit 1.2 Execution Version AVIDITY BIOSCIENCES, INC. $150,000,000 OF SHARES OF COMMON STOCK PAR VALUE $0.0001 PER SHARE SALES AGREEMENT July 2, 2021 Cowen and Company, LLC 599 Lexington Avenue New York, NY 10022 Ladies and Gentlemen: Avidity Biosciences, Inc., a Delaware corporation (the ?Company?), confirms its agreement (this ?Agreement?) with Cowen and Company, LLC (?Cowen?), as follows: 1.

June 17, 2021 8-K

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): June 16, 2021 AVIDITY BIOSCIENCES, INC. (Exact name of registrant as specified in its charter) Delaware 001-39321 46-1336960 (State or other jurisdiction of incorporation or organizat

May 19, 2021 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 19, 2021 AVIDITY BIOSCIENCES, INC. (Exact name of registrant as specified in its charter) Delaware 001-39321 46-1336960 (State or other jurisdiction of incorporation or organizati

May 19, 2021 EX-99.1

Forward Looking Statements We caution the reader that this presentation contains forward-looking statements that involve substantial risks and uncertainties. All statements other than statements of historical facts contained in this presentation, inc

Virtual Investor & Analyst Event Series ? Volume 1 Engineering AOC?s Exhibit 99.1 Forward Looking Statements We caution the reader that this presentation contains forward-looking statements that involve substantial risks and uncertainties. All statements other than statements of historical facts contained in this presentation, including statements regarding our future results of operations and fin

May 12, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 12, 2021 AVIDITY BIOSCIENCES, INC. (Exact name of registrant as specified in its charter) Delaware 001-39321 46-1336960 (State or other jurisdiction of incorporation or organizati

May 12, 2021 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED MARCH 31, 2021 or ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Commission File Number 001-39321 Avidity Biosciences, Inc. (Exact name of registrant as

May 12, 2021 EX-99.1

Avidity Biosciences Reports First Quarter 2021 Financial Results and Recent Highlights

EX-99.1 2 rna-ex9916.htm EX-99.1 Exhibit 99.1 Avidity Biosciences Reports First Quarter 2021 Financial Results and Recent Highlights LA JOLLA, Calif., May 12, 2021 /PRNewswire/- Avidity Biosciences, Inc. (Nasdaq: RNA), a biopharmaceutical company pioneering a new class of oligonucleotide-based therapies called Antibody Oligonucleotide Conjugates (AOCs™), today reported financial results for the fi

April 29, 2021 DEF 14A

Definitive Proxy Statement

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of the Commission Only (as permitted by Rule 14

April 29, 2021 DEFA14A

- DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ? Filed by a Party other than the Registrant ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ? Defin

March 15, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): March 15, 2021 AVIDITY BIOSCIENCES, INC. (Exact name of registrant as specified in its charter) Delaware 001-39321 46-1336960 (State or other jurisdiction of incorporation or organiza

March 15, 2021 EX-10.4

Non-Employee Director Compensation Program.

Exhibit 10.4 AVIDITY BIOSCIENCES, INC. Non-Employee DIRECTOR COMPENSATION PROGRAM (As Amended and Restated Effective January 11, 2021) Non-employee members of the board of directors (the ?Board?) of Avidity Biosciences, Inc. (the ?Company?) shall receive cash and equity compensation as set forth in this Amended and Restated Non-Employee Director Compensation Program (this ?Program?). This Program

March 15, 2021 EX-4.3

Exhibit 4.3

Exhibit 4.3 DESCRIPTION OF THE REGISTRANT?S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934 As of December 31, 2020, Avidity Biosciences, Inc. (?we,? ?us? and ?our?) had one class of securities registered pursuant to Section 12 of the Securities Exchange Act of 1934, as amended (the ?Exchange Act?): our common stock. Description of Common Stock General The follo

March 15, 2021 EX-10.14

Amended and Restated Lease Agreement, dated December 18, 2020, by and between ARE-SD Region No. 44, LLC and the Registrant.

Exhibit 10.14 AMENDED AND RESTATED LEASE AGREEMENT THIS AMENDED AND RESTATED LEASE AGREEMENT AMENDS, RESTATES AND SUPERSEDES IN ITS ENTIRETY THAT CERTAIN LEASE AGREEMENT DATED AS OF June 1, 2020 (THE ?ORIGINAL LEASE?), BY AND BETWEEN TENANT (AS DEFINED BELOW) AND LANDLORD (AS DEFINED BELOW). THIS AMENDED AND RESTATED LEASE AGREEMENT (this ?Lease?) is made this 18 day of December, 2020, between ARE

March 15, 2021 EX-99.1

Avidity Biosciences Reports Fourth Quarter and Year-End 2020 Financial Results and Recent Highlights

Exhibit 99.1 Avidity Biosciences Reports Fourth Quarter and Year-End 2020 Financial Results and Recent Highlights LA JOLLA, Calif., March 15, 2021 /PRNewswire/- Avidity Biosciences, Inc. (Nasdaq: RNA), a biopharmaceutical company pioneering a new class of oligonucleotide-based therapies called Antibody Oligonucleotide Conjugates (AOCs?), today reported financial results for the fourth quarter and

March 15, 2021 EX-10.10

Employment Agreement, dated December 8, 2020, by and between W. Michael Flanagan, Ph.D. and the Registrant.

Exhibit 10.10 December 8, 2020 Mike Flanagan Re:Offer of Employment Dear Mike, Avidity Biosciences, Inc. (the ?Company?) is pleased to offer you employment as the Company?s Chief Technical Officer on the terms and conditions set forth in this letter agreement (the ?Agreement?). 1.Commencement of Employment. Your employment with the Company will start on or about January 21, 2021 (the ?Start Date?)

March 15, 2021 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 FORM 10-K (Mark One) ? ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE FISCAL YEAR ENDED DECEMBER 31, 2020 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE TRANSITION PERIOD FROM TO Commission file number: 001-39321 AVIDITY BIOSCIENCES, INC.

February 16, 2021 SC 13G

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. ___) Avidity Biosciences, Inc. (Name of Issuer) Common Stock, par value $0.0001 per share (Title of Class of

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. ) Avidity Biosciences, Inc. (Name of Issuer) Common Stock, par value $0.0001 per share (Title of Class of Securities) 05370A108 (CUSIP Number) December 31, 2020 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate th

February 16, 2021 SC 13G/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1)* Avidity Biosciences, Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 05370A108 (CUSIP Number) December 31, 2020 (Date of Event which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which th

February 12, 2021 SC 13G

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 Avidity Biosciences, Inc. (Name of Issuer) Common Stock, $0.0001 par value (Title of Class of Securities) (CUSIP Number) De

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 Avidity Biosciences, Inc. (Name of Issuer) Common Stock, $0.0001 par value (Title of Class of Securities) 05370A108 (CUSIP Number) December 31, 2020 (Date of Event which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which th

January 21, 2021 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

Form 8-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): January 21, 2021 AVIDITY BIOSCIENCES, INC. (Exact name of registrant as specified in its charter) Delaware 001-39321 46-1336960 (State or other jurisdiction of incorporation

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