Mosbrooker Eric - Insider Non-Derivative Transactions at Avidity Biosciences, Inc. (RNA) - (SEC)

Updated on January 3, 2026.

According to recent SEC insider information filed on Dec 17, 2025, Mosbrooker Eric's relationship to Avidity Biosciences, Inc. (RNA) is Officer (Chief Commercial Officer), and currently has 127,000 shares of Common Stock.

The chart below shows the number of shares owned, and the table shows the recent insider transactions.

You can see similar information for other RNA insiders.

Related Topics: SEC Topic List.

Data Source: SEC.

Mosbrooker Eric - Insider Non-Derivative Transactions of RNA Common Stock

Mosbrooker Eric - Insider Non-Derivative Transactions at RNA

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Date	Transaction	No. of Shares	Price Per Share	Shares Owned After Transactions
Dec 18, 2025	F -- (Common Stock)	11426	71.87	79010
Dec 18, 2025	F -- (Common Stock)	36564	71.87	90436
Dec 18, 2025	Acquisition -- (Common Stock)	72000	0	127000
Oct 4, 2025	Sell -- (Common Stock)	6562	45.38	55000
Oct 4, 2025	M -- (Common Stock)	6562	9.05	61562
Sep 4, 2025	Sell -- (Common Stock)	6563	47.07	55000
Sep 4, 2025	M -- (Common Stock)	6563	9.05	61563
Aug 7, 2025	Sell -- (Common Stock)	6120	44.06	55000
Aug 7, 2025	Sell -- (Common Stock)	124687	44.06	61120
Aug 7, 2025	M -- (Common Stock)	124687	9.05	185807
Jan 7, 2025	Acquisition -- (Common Stock)	25000	0	61120