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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1599901	Avidity Biosciences Inc.	RNA	Pharmaceutical Preparations (2834)	461336960

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
2048409	P. Kathleen Gallagher	C/O Avidity Biosciences, Inc. 10578 Science Center Dr., Suite 125 San Diego CA 92121	Chief Program 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	Acquisiton	2025-02-03	5,875	$16.65	56,429	No	4	M	Direct
Common Stock	Disposition	2025-02-03	5,875	$32.16	50,554	No	4	S	Direct

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

Reported Derivative Transactions

Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Stock Option (Right to Buy)	Disposition	2025-02-03	5,875	$0.00	5,875	$16.65

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
34,675		2032-07-17	No	4	M	Direct

Footnotes

This option exercise and sale was effected pursuant to a Rule 10b5-1 trading plan previously adopted by the Reporting Person on June 12, 2024.
This represents a weighted-average price. These shares were sold in multiple transactions at prices ranging from $31.53 to $32.77. 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.
This option was granted on July 18, 2022 and vests in equal installments of 1/48 of the original number of shares subject to the option on each monthly anniversary of such grant date, until it is fully vested and exercisable on July 18, 2026.