Avidity Biosciences, Inc. — Director's Dealing 2024

Dec 20, 2024

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Avidity Biosciences, Inc. (RNA)
CIK: 0001599901
Period of Report: 2024-12-18

Reporting Person: McCarthy Teresa (Chief Human Resources Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2024-12-18	Common Stock	S	11151	$32.66	Disposed	82867	Direct

Footnotes

F1: Represents the number of shares sold by the Reporting Person to cover tax withholding obligations in connection with the vesting and settlement of 25,000 time-based restricted stock units (RSUs) that vested on December 17, 2024. Those RSUs were initially granted as performance-based restricted stock units (PSUs), and converted to time-based RSUs as a result of a performance objective achieved by the Issuer on June 17, 2024. 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.

F2: This represents a weighted-average price. These shares were sold in multiple transactions at prices ranging from $32.66 to $32.66. 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.