Eric Mosbrooker is Chief Commercial Officer of Avidity Biosciences, Inc.. Currently has a direct ownership of 79,010 shares of RNA, which is worth approximately $5.59 Million. The most recent transaction as insider was on Dec 17, 2025, when has been sold 47,990 shares (Common Stock) at a price of $71.87 per share, resulting in proceeds of $3,449,041. This information was disclosed in a Form 4 filing with the Securities and Exchange Commission (SEC).

Shares Held (Direct Ownership) 79K
43.65% 3M change
n/a 12M change
Total Value Held $5.59 Million

Eric Mosbrooker Transaction History

Date Transaction Value Shares Traded Shares Held Form
Dec 17 2025
SELL
Payment of exercise price or tax liability
$3,449,041 $71.87 p/Share
47,990 Reduced 37.79%
79,010 Common Stock
Dec 17 2025
BUY
Grant, award, or other acquisition
-
72,000 Added 36.18%
127,000 Common Stock
Oct 03 2025
SELL
Open market or private sale
$297,783 $45.38 p/Share
6,562 Reduced 10.66%
55,000 Common Stock
Oct 03 2025
BUY
Exercise of conversion of derivative security
$59,386 $9.05 p/Share
6,562 Added 9.63%
61,562 Common Stock
Sep 03 2025
SELL
Open market or private sale
$308,920 $47.07 p/Share
6,563 Reduced 10.66%
55,000 Common Stock
Sep 03 2025
BUY
Exercise of conversion of derivative security
$59,395 $9.05 p/Share
6,563 Added 9.63%
61,563 Common Stock
Aug 06 2025
SELL
Open market or private sale
$5,763,356 $44.06 p/Share
130,807 Reduced 70.4%
55,000 Common Stock
Aug 06 2025
BUY
Exercise of conversion of derivative security
$1,128,417 $9.05 p/Share
124,687 Added 40.16%
185,807 Common Stock
Jan 06 2025
BUY
Grant, award, or other acquisition
-
25,000 Added 29.03%
61,120 Common Stock

Also insider at

HZNP
Horizon Therapeutics Public Ltd Co Healthcare
EM

Eric Mosbrooker

Chief Commercial Officer
Dublin, L2

Track Institutional and Insider Activities on RNA

Follow Avidity Biosciences, Inc. and customize your updates to receive the information that matters most to you.

Institutional Portfolio Updates

Receive a notification when an Institution or Guru buys or sells RNA shares.

Notify only if

Insider Trading

Get notified when an Avidity Biosciences, Inc. insider buys or sells RNA shares.

Notify only if

News

Receive news related to Avidity Biosciences, Inc.

Track Activities on RNA