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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1599901	Avidity Biosciences Inc.	RNA	()	4

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1383731	F Michael Maclean	C/O Avidity Biosciences, Inc. 10578 Science Center Drive, Suite 125 San Diego CA 92121	Chief Financial Officer	No	Yes	No	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock	Disposition	2024-12-18	11,151	$32.66	82,942	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	S	Direct

Footnotes

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.
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.