Eric Mosbrooker - 06 Jan 2025 Form 3 Insider Report for Avidity Biosciences, Inc. (RNA)

Role: Chief Commercial Officer
Signature: /s/ John B. Moriarty, Jr., J.D., Attorney-in-Fact
Issuer symbol: RNA
Transactions as of: 06 Jan 2025
Net transactions value: $0
Form type: 3
Filing time: 08 Jan 2025, 19:04:44 UTC
Previous filing: 20 Jun 2023
Next filing: 08 Aug 2025
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
holding	RNA	Common Stock						36,120	06 Jan 2025	Direct	F1

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
holding	RNA	Stock Option (Right to Buy)							06 Jan 2025	Common Stock	315,000	$9.05	Direct	F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Includes restricted stock units (RSUs). Each RSU represents a contingent right to receive one share of the Issuer's common stock. 10,000 RSUs on each of the first four anniversaries of January 1, 2024, subject to the Reporting Person's continuous service to the Issuer on each such vesting date.
F2	This option vests as follows: 1/4 of the shares underlying the option vested on the first anniversary of January 1, 2024, and 1/48 of the total shares underlying the option shall vest in equal monthly installments thereafter.