Arthur A. Levin - 06 Aug 2025 Form 4 Insider Report for Avidity Biosciences, Inc. (RNA)

Role
Director
Signature
/s/ John B. Moriarty, Jr., J.D., Attorney-in-Fact
Issuer symbol
RNA
Transactions as of
06 Aug 2025
Net transactions value
-$2,717,331
Form type
4
Filing time
08 Aug 2025, 17:41:14 UTC
Previous filing
02 Jul 2025
Next filing
01 Oct 2025

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
LEVIN ARTHUR A Director C/O AVIDITY BIOSCIENCES, INC., 10578 SCIENCE CENTER DRIVE, SUITE 125, SAN DIEGO /s/ John B. Moriarty, Jr., J.D., Attorney-in-Fact 08 Aug 2025 0001181556

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction RNA Common Stock Options Exercise $2,401,550 +107,500 +547% $22.34 127,150 06 Aug 2025 Direct F1
transaction RNA Common Stock Sale $5,118,881 -107,500 -85% $47.62 19,650 06 Aug 2025 Direct F1, F2
holding RNA Common Stock 131,372 06 Aug 2025 By family trust
holding RNA Common Stock 22,500 06 Aug 2025 By charitable remainder trust

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
transaction RNA Stock Option (Right to Buy) Options Exercise $0 -107,500 -90% $0.000000 12,500 06 Aug 2025 Common Stock 107,500 $22.34 Direct F1, F3
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.

Transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c).

Explanation of Responses:

Id Content
F1 The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan previously adopted by the Reporting Person on October 17, 2024.
F2 This represents a weighted-average price. These shares were sold in multiple transactions at prices ranging from $47.50 to $48.02. 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.
F3 This option is fully vested and exercisable as of the date of this Report.