0001599901-24-000158.txt : 20240923 0001599901-24-000158.hdr.sgml : 20240923 20240923210105 ACCESSION NUMBER: 0001599901-24-000158 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20240919 FILED AS OF DATE: 20240923 DATE AS OF CHANGE: 20240923 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Boyce Sarah CENTRAL INDEX KEY: 0001629383 ORGANIZATION NAME: FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-39321 FILM NUMBER: 241317374 MAIL ADDRESS: STREET 1: C/O IONIS PHARMACEUTICALS, INC. STREET 2: 2855 GAZELLE COURT CITY: CARLSBAD STATE: CA ZIP: 92010 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: Avidity Biosciences, Inc. CENTRAL INDEX KEY: 0001599901 STANDARD INDUSTRIAL CLASSIFICATION: PHARMACEUTICAL PREPARATIONS [2834] ORGANIZATION NAME: 03 Life Sciences IRS NUMBER: 461336960 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 10578 SCIENCE CENTER DRIVE STREET 2: SUITE 125 CITY: SAN DIEGO STATE: CA ZIP: 92121 BUSINESS PHONE: 858-401-7900 MAIL ADDRESS: STREET 1: 10578 SCIENCE CENTER DRIVE STREET 2: SUITE 125 CITY: SAN DIEGO STATE: CA ZIP: 92121 FORMER COMPANY: FORMER CONFORMED NAME: Avidity Biosciences LLC DATE OF NAME CHANGE: 20161227 FORMER COMPANY: FORMER CONFORMED NAME: Avidity NanoMedicines LLC DATE OF NAME CHANGE: 20140211 4 1 wk-form4_1727139658.xml FORM 4 X0508 4 2024-09-19 0 0001599901 Avidity Biosciences, Inc. RNA 0001629383 Boyce Sarah C/O AVIDITY BIOSCIENCES, INC. 10578 SCIENCE CENTER DRIVE, SUITE 125 SAN DIEGO CA 92121 1 1 0 0 President and CEO 1 Common Stock 2024-09-19 4 A 0 62500 0 A 267543 D Common Stock 2024-09-23 4 S 0 32880 44.0001 D 234663 D Common Stock 2024-09-19 4 A 0 62500 0 A 297163 D Represents performance-based restricted stock units (PSUs). Each PSU represents a contingent right to receive one share of the Issuer's common stock. The PSUs were originally granted to the Reporting Person on September 11, 2023, and are eligible to vest upon the achievement of two company performance objectives. The PSUs reflected in this row represent the portion of the award that vested as a result of the achievement of the second performance objective (the Issuer's completion of a clinical event related to del-brax) (the Performance Condition). Represents the number of shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting and settlement of those PSUs that vested on September 19, 2024 as a result of achievement of the Performance Condition. This sale is mandated by the Issuer's election under its equity incentive plans to require the satisfaction of tax withholding obligations to be funded by a "sell-to-cover" transaction and does not represent a discretionary trade by the Reporting Person. The Reporting Person has executed an instruction letter for the automatic sale of such "sell-to-cover" shares, intended to satisfy the affirmative defense conditions of Rule 10b5-1. This represents a weighted-average price. These shares were sold in multiple transactions at prices ranging from $44.00 to $44.02. The Reporting Person undertakes to provide the Issuer, any securityholder of the Issuer, or the Staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. As a result of the achievement of the Performance Condition, on September 19, 2024, an additional 25,000 PSUs were earned by the Reporting Person. On such date, such PSUs converted to time-based restricted stock units that will vest in full on March 19, 2025, subject to the Reporting Person's continued employment or service through such date. /s/ John B. Moriarty, Jr., J.D., Attorney-in-Fact 2024-09-23