STOCK TITAN

[Form 4] Avidity Biosciences, Inc. Insider Trading Activity

Filing Impact
(High)
Filing Sentiment
(Very Negative)
Form Type
4
Rhea-AI Filing Summary

Arthur A. Levin, a director of Avidity Biosciences (RNA), reported both the exercise of stock options and the sale of shares on 08/06/2025. He exercised options to acquire 107,500 shares at an exercise price of $22.34 per share; the option is noted as fully vested and exercisable. The same 107,500 shares were sold under a Rule 10b5-1 trading plan adopted on October 17, 2024 at a weighted-average price of $47.6175 per share, with trade prices reported in a range of $47.50–$48.02.

Following these transactions the reporting person directly beneficially owned 19,650 shares. The filing also discloses indirect holdings of 131,372 shares through a family trust and 22,500 shares through a charitable remainder trust. The related option shows an expiration date of 02/01/2031.

Arthur A. Levin, amministratore di Avidity Biosciences (RNA), ha segnalato sia l'esercizio di opzioni su azioni sia la vendita di azioni in data 08/06/2025. Ha esercitato opzioni per acquisire 107,500 azioni a un prezzo di esercizio di $22.34 per azione; l'opzione è indicata come pienamente maturata e esercitabile. Le stesse 107,500 azioni sono state vendute nell'ambito di un piano di negoziazione conforme alla Rule 10b5-1, adottato il 17 ottobre 2024, a un prezzo medio ponderato di $47.6175 per azione, con prezzi di negoziazione riportati nell'intervallo $47.50–$48.02.

Dopo queste operazioni la persona segnalante possedeva direttamente in modo beneficiario 19,650 azioni. La comunicazione dichiara inoltre partecipazioni indirette di 131,372 azioni tramite un trust familiare e di 22,500 azioni tramite un charitable remainder trust. L'opzione correlata riporta una scadenza al 02/01/2031.

Arthur A. Levin, director de Avidity Biosciences (RNA), informó tanto el ejercicio de opciones sobre acciones como la venta de acciones con fecha 08/06/2025. Ejerció opciones para adquirir 107,500 acciones a un precio de ejercicio de $22.34 por acción; la opción figura como totalmente adquirida y ejercitable. Esas mismas 107,500 acciones se vendieron bajo un plan de negociación conforme a la Rule 10b5-1, adoptado el 17 de octubre de 2024, a un precio medio ponderado de $47.6175 por acción, con precios de operación informados en el rango $47.50–$48.02.

Tras estas operaciones, la persona informante poseía directamente de forma beneficiaria 19,650 acciones. La presentación también revela participaciones indirectas de 131,372 acciones a través de un fideicomiso familiar y de 22,500 acciones a través de un charitable remainder trust. La opción relacionada muestra una fecha de vencimiento del 02/01/2031.

Arthur A. Levin, Avidity Biosciences (RNA) 이사, 는 08/06/2025에 주식매수선택권(옵션) 행사와 주식 매도를 모두 보고했습니다. 그는 주당 행사가격 $22.34107,500주를 취득하기 위해 옵션을 행사했으며, 해당 옵션은 완전히 권리확정(vested)되어 행사 가능한 상태로 표시되어 있습니다. 동일한 107,500주는 2024년 10월 17일 채택된 Rule 10b5-1 트레이딩 플랜에 따라 매각되었고, 가중평균 가격은 주당 $47.6175, 거래 가격 범위는 $47.50–$48.02로 보고되었습니다.

이 거래들 이후 보고인은 직접적으로 수익적으로 19,650주를 보유하고 있었습니다. 서류에는 또한 가족 신탁을 통한 간접 보유 131,372주와 charitable remainder trust를 통한 22,500주의 보유도 공개되어 있습니다. 관련 옵션의 만료일은 02/01/2031로 기재되어 있습니다.

Arthur A. Levin, administrateur d'Avidity Biosciences (RNA), a déclaré à la fois l'exercice d'options sur actions et la vente d'actions le 08/06/2025. Il a exercé des options pour acquérir 107,500 actions à un prix d'exercice de $22.34 par action ; l'option est indiquée comme entièrement acquise (vested) et exerçable. Ces mêmes 107,500 actions ont été vendues dans le cadre d'un plan de négociation conforme à la Rule 10b5-1, adopté le 17 octobre 2024, au prix moyen pondéré de $47.6175 par action, avec des prix de transaction rapportés dans la fourchette $47.50–$48.02.

À la suite de ces opérations, la personne déclarante détenait directement à titre bénéficiaire 19,650 actions. Le dépôt révèle également des participations indirectes de 131,372 actions via un trust familial et de 22,500 actions via un charitable remainder trust. L'option concernée porte une date d'expiration du 02/01/2031.

Arthur A. Levin, Direktor von Avidity Biosciences (RNA), meldete sowohl die Ausübung von Aktienoptionen als auch den Verkauf von Aktien am 08/06/2025. Er übte Optionen aus, um 107,500 Aktien zu einem Ausübungspreis von $22.34 je Aktie zu erwerben; die Option wird als vollständig unverfallbar und ausübbar angegeben. Dieselben 107,500 Aktien wurden im Rahmen eines Handelsplans gemäß Rule 10b5-1, der am 17. Oktober 2024 angenommen wurde, verkauft — zum gewichteten Durchschnittspreis von $47.6175 je Aktie, mit gemeldeten Handelspreisen im Bereich $47.50–$48.02.

Nach diesen Transaktionen besaß die meldende Person direkt wirtschaftlich begünstigt 19,650 Aktien. Die Einreichung offenbart außerdem indirekte Bestände von 131,372 Aktien über einen Familientrust und 22,500 Aktien über einen charitable remainder trust. Die zugehörige Option weist ein Ablaufdatum am 02/01/2031 auf.

Positive
  • Exercised options to acquire 107,500 shares at $22.34 per share
  • Sale executed under a Rule 10b5-1 trading plan adopted on October 17, 2024
  • Option underlying the exercised shares is fully vested and exercisable
  • Filing discloses weighted-average sale price ($47.6175) and trade price range ($47.50–$48.02)
Negative
  • Direct beneficial ownership decreased to 19,650 shares following the reported sale
  • Reported sale of 107,500 shares reduced the reporting person’s direct stake

Insights

TL;DR: Director exercised 107,500 options and sold 107,500 shares under a pre-established 10b5-1 plan; direct holdings decreased.

The reported transactions consisted of an option exercise to acquire 107,500 shares at $22.34 per share and the contemporaneous sale of 107,500 shares at a weighted-average $47.6175. Sales were executed pursuant to a Rule 10b5-1 plan adopted on October 17, 2024. The option is stated as fully vested and exercisable, and it expires on 02/01/2031. After the transactions the reporting person directly beneficially owns 19,650 shares, with additional indirect holdings in a family trust and a charitable remainder trust. The disclosure is precise on quantities and prices and provides the 10b5-1 context that clarifies the transactions’ pre-planned nature.

TL;DR: Transactions executed under a previously adopted 10b5-1 plan; insider transparency is preserved by disclosing plan adoption and weighted-average prices.

The Form 4 discloses that the sales were effected under a Rule 10b5-1 trading plan adopted on October 17, 2024, and provides a weighted-average sale price plus the explicit price range. The filing also notes the exercised option is fully vested and exercisable, and supplies the option expiration date. The report identifies direct and indirect beneficial ownership counts, including trust holdings, which helps stakeholders understand how control and economic interest are distributed following the transactions.

Arthur A. Levin, amministratore di Avidity Biosciences (RNA), ha segnalato sia l'esercizio di opzioni su azioni sia la vendita di azioni in data 08/06/2025. Ha esercitato opzioni per acquisire 107,500 azioni a un prezzo di esercizio di $22.34 per azione; l'opzione è indicata come pienamente maturata e esercitabile. Le stesse 107,500 azioni sono state vendute nell'ambito di un piano di negoziazione conforme alla Rule 10b5-1, adottato il 17 ottobre 2024, a un prezzo medio ponderato di $47.6175 per azione, con prezzi di negoziazione riportati nell'intervallo $47.50–$48.02.

Dopo queste operazioni la persona segnalante possedeva direttamente in modo beneficiario 19,650 azioni. La comunicazione dichiara inoltre partecipazioni indirette di 131,372 azioni tramite un trust familiare e di 22,500 azioni tramite un charitable remainder trust. L'opzione correlata riporta una scadenza al 02/01/2031.

Arthur A. Levin, director de Avidity Biosciences (RNA), informó tanto el ejercicio de opciones sobre acciones como la venta de acciones con fecha 08/06/2025. Ejerció opciones para adquirir 107,500 acciones a un precio de ejercicio de $22.34 por acción; la opción figura como totalmente adquirida y ejercitable. Esas mismas 107,500 acciones se vendieron bajo un plan de negociación conforme a la Rule 10b5-1, adoptado el 17 de octubre de 2024, a un precio medio ponderado de $47.6175 por acción, con precios de operación informados en el rango $47.50–$48.02.

Tras estas operaciones, la persona informante poseía directamente de forma beneficiaria 19,650 acciones. La presentación también revela participaciones indirectas de 131,372 acciones a través de un fideicomiso familiar y de 22,500 acciones a través de un charitable remainder trust. La opción relacionada muestra una fecha de vencimiento del 02/01/2031.

Arthur A. Levin, Avidity Biosciences (RNA) 이사, 는 08/06/2025에 주식매수선택권(옵션) 행사와 주식 매도를 모두 보고했습니다. 그는 주당 행사가격 $22.34107,500주를 취득하기 위해 옵션을 행사했으며, 해당 옵션은 완전히 권리확정(vested)되어 행사 가능한 상태로 표시되어 있습니다. 동일한 107,500주는 2024년 10월 17일 채택된 Rule 10b5-1 트레이딩 플랜에 따라 매각되었고, 가중평균 가격은 주당 $47.6175, 거래 가격 범위는 $47.50–$48.02로 보고되었습니다.

이 거래들 이후 보고인은 직접적으로 수익적으로 19,650주를 보유하고 있었습니다. 서류에는 또한 가족 신탁을 통한 간접 보유 131,372주와 charitable remainder trust를 통한 22,500주의 보유도 공개되어 있습니다. 관련 옵션의 만료일은 02/01/2031로 기재되어 있습니다.

Arthur A. Levin, administrateur d'Avidity Biosciences (RNA), a déclaré à la fois l'exercice d'options sur actions et la vente d'actions le 08/06/2025. Il a exercé des options pour acquérir 107,500 actions à un prix d'exercice de $22.34 par action ; l'option est indiquée comme entièrement acquise (vested) et exerçable. Ces mêmes 107,500 actions ont été vendues dans le cadre d'un plan de négociation conforme à la Rule 10b5-1, adopté le 17 octobre 2024, au prix moyen pondéré de $47.6175 par action, avec des prix de transaction rapportés dans la fourchette $47.50–$48.02.

À la suite de ces opérations, la personne déclarante détenait directement à titre bénéficiaire 19,650 actions. Le dépôt révèle également des participations indirectes de 131,372 actions via un trust familial et de 22,500 actions via un charitable remainder trust. L'option concernée porte une date d'expiration du 02/01/2031.

Arthur A. Levin, Direktor von Avidity Biosciences (RNA), meldete sowohl die Ausübung von Aktienoptionen als auch den Verkauf von Aktien am 08/06/2025. Er übte Optionen aus, um 107,500 Aktien zu einem Ausübungspreis von $22.34 je Aktie zu erwerben; die Option wird als vollständig unverfallbar und ausübbar angegeben. Dieselben 107,500 Aktien wurden im Rahmen eines Handelsplans gemäß Rule 10b5-1, der am 17. Oktober 2024 angenommen wurde, verkauft — zum gewichteten Durchschnittspreis von $47.6175 je Aktie, mit gemeldeten Handelspreisen im Bereich $47.50–$48.02.

Nach diesen Transaktionen besaß die meldende Person direkt wirtschaftlich begünstigt 19,650 Aktien. Die Einreichung offenbart außerdem indirekte Bestände von 131,372 Aktien über einen Familientrust und 22,500 Aktien über einen charitable remainder trust. Die zugehörige Option weist ein Ablaufdatum am 02/01/2031 auf.

SEC Form 4
FORM 4 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number: 3235-0287
Estimated average burden
hours per response: 0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
X
Check this box to indicate that a 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). See Instruction 10.
1. Name and Address of Reporting Person*
LEVIN ARTHUR A

(Last) (First) (Middle)
C/O AVIDITY BIOSCIENCES, INC.
10578 SCIENCE CENTER DRIVE, SUITE 125

(Street)
SAN DIEGO CA 92121

(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
Avidity Biosciences, Inc. [ RNA ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
X Director 10% Owner
Officer (give title below) Other (specify below)
3. Date of Earliest Transaction (Month/Day/Year)
08/06/2025
4. If Amendment, Date of Original Filed (Month/Day/Year)
6. Individual or Joint/Group Filing (Check Applicable Line)
X Form filed by One Reporting Person
Form filed by More than One Reporting Person
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 08/06/2025 M(1) 107,500 A $22.34 127,150 D
Common Stock 08/06/2025 S(1) 107,500 D $47.6175(2) 19,650 D
Common Stock 131,372 I By family trust
Common Stock 22,500 I By charitable remainder trust
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year) 7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Stock Option (Right to Buy) $22.34 08/06/2025 M(1) 107,500 (3) 02/01/2031 Common Stock 107,500 $0 12,500 D
Explanation of Responses:
1. 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.
2. 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.
3. This option is fully vested and exercisable as of the date of this Report.
Remarks:
/s/ John B. Moriarty, Jr., J.D., Attorney-in-Fact 08/08/2025
** Signature of Reporting Person Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What insider transactions did Avidity (RNA) disclose in this Form 4?

The filing reports that Director Arthur A. Levin exercised 107,500 options at $22.34 per share and sold 107,500 shares on 08/06/2025.

At what price were the shares sold in the reported transactions for RNA?

Shares were sold at a weighted-average price of $47.6175 per share, with individual trade prices reported in the range $47.50–$48.02.

Were the sales part of a pre-arranged trading plan for Avidity insider trades?

Yes. The sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on October 17, 2024.

What was the reporting person’s direct ownership after the transactions?

After the reported transactions the reporting person directly beneficially owned 19,650 shares.

Does the Form 4 disclose indirect holdings for the reporting person?

Yes. The filing shows indirect holdings of 131,372 shares held by a family trust and 22,500 shares held by a charitable remainder trust.

Is the exercised option fully vested and when does it expire?

The Form 4 states the option is fully vested and exercisable and lists an expiration date of 02/01/2031.
Avidity Biosciences, Inc.

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SAN DIEGO