STOCK TITAN

[Form 4] ProKidney Corp. Insider Trading Activity

Filing Impact
(Low)
Filing Sentiment
(Neutral)
Form Type
4
Rhea-AI Filing Summary

Form 4 overview: Aaron Cowen, through Suvretta Capital Management, filed an "exit" Form 4 for ProKidney Corp. (PROK) on 07/11/2025.

  • No transactions were reported in either the non-derivative or derivative tables.
  • The filing is made solely to disclose that Cowen is no longer a beneficial owner of more than 10 % of PROK’s Class A common stock.
  • The reduction below the 10 % threshold is attributed to the increase in the company’s outstanding shares as disclosed in ProKidney’s Form S-3 amendment dated 07/03/2025; Cowen’s absolute share count is unchanged from his Form 3 filed on 10/22/2024.
  • Cowen continues to hold PROK shares, but the filing removes the obligation for future Forms 4/5 unless his ownership again exceeds 10 %.

For investors, the filing signals lower relative insider concentration but does not indicate insider selling or a change in Cowen’s absolute stake.

Panoramica del Modulo 4: Aaron Cowen, tramite Suvretta Capital Management, ha presentato un Modulo 4 di "uscita" per ProKidney Corp. (PROK) il 11/07/2025.

  • Nessuna transazione è stata riportata né nelle tabelle dei titoli non derivati né in quelle dei derivati.
  • La presentazione è effettuata esclusivamente per comunicare che Cowen non è più un azionista beneficiario di oltre il 10% delle azioni ordinarie di Classe A di PROK.
  • La riduzione al di sotto della soglia del 10% è dovuta all'aumento delle azioni in circolazione della società, come riportato nell'emendamento al Modulo S-3 di ProKidney del 03/07/2025; il numero assoluto di azioni detenute da Cowen rimane invariato rispetto al Modulo 3 presentato il 22/10/2024.
  • Cowen continua a detenere azioni PROK, ma questa comunicazione elimina l'obbligo di presentare futuri Moduli 4/5 a meno che la sua partecipazione non superi nuovamente il 10%.

Per gli investitori, la presentazione segnala una minore concentrazione relativa degli insider ma non indica vendite da parte degli insider né una variazione della quota assoluta di Cowen.

Resumen del Formulario 4: Aaron Cowen, a través de Suvretta Capital Management, presentó un Formulario 4 de "salida" para ProKidney Corp. (PROK) el 11/07/2025.

  • No se reportaron transacciones ni en las tablas de valores no derivados ni en las de derivados.
  • La presentación se realiza únicamente para revelar que Cowen ya no es un propietario beneficiario de más del 10% de las acciones comunes Clase A de PROK.
  • La reducción por debajo del umbral del 10% se atribuye al aumento en las acciones en circulación de la compañía, como se divulgó en la enmienda al Formulario S-3 de ProKidney del 03/07/2025; el conteo absoluto de acciones de Cowen no ha cambiado desde su Formulario 3 presentado el 22/10/2024.
  • Cowen sigue poseyendo acciones de PROK, pero la presentación elimina la obligación de presentar futuros Formularios 4/5 a menos que su propiedad vuelva a superar el 10%.

Para los inversores, la presentación indica una menor concentración relativa de insiders pero no señala ventas por parte de insiders ni un cambio en la participación absoluta de Cowen.

Form 4 개요: Aaron Cowen은 Suvretta Capital Management를 통해 2025년 7월 11일 ProKidney Corp. (PROK)에 대한 "퇴출" Form 4를 제출했습니다.

  • 비파생 및 파생 항목 모두에서 거래가 보고되지 않았습니다.
  • 이번 제출은 Cowen이 더 이상 PROK의 클래스 A 보통주 10% 이상을 실질적으로 소유하지 않음을 공개하기 위한 것입니다.
  • 10% 이하로 감소한 이유는 2025년 7월 3일자 ProKidney의 Form S-3 수정서에 공시된 회사 발행 주식 수 증가 때문이며, Cowen의 절대 주식 수는 2024년 10월 22일 제출한 Form 3과 변함이 없습니다.
  • Cowen은 PROK 주식을 계속 보유하고 있으나, 그의 소유 지분이 다시 10%를 초과하지 않는 한 앞으로 Form 4/5 제출 의무가 사라집니다.

투자자에게 이번 제출은 내부자 지분의 상대적 감소를 알리지만, 내부자 매도나 Cowen의 절대 지분 변화는 나타내지 않습니다.

Présentation du formulaire 4 : Aaron Cowen, via Suvretta Capital Management, a déposé un formulaire 4 de "sortie" pour ProKidney Corp. (PROK) le 11/07/2025.

  • Aucune transaction n’a été signalée dans les tableaux des titres non dérivés ou dérivés.
  • Le dépôt a été effectué uniquement pour divulguer que Cowen n’est plus un propriétaire bénéficiaire de plus de 10 % des actions ordinaires de classe A de PROK.
  • La diminution sous le seuil de 10 % est attribuée à l’augmentation des actions en circulation de la société, telle que divulguée dans l’amendement du formulaire S-3 de ProKidney en date du 03/07/2025 ; le nombre absolu d’actions détenues par Cowen reste inchangé par rapport à son formulaire 3 déposé le 22/10/2024.
  • Cowen continue de détenir des actions PROK, mais le dépôt supprime l’obligation de déposer de futurs formulaires 4/5 sauf si sa participation dépasse à nouveau 10 %.

Pour les investisseurs, ce dépôt signale une concentration relative moindre des initiés mais n’indique ni vente d’initiés ni changement dans la participation absolue de Cowen.

Überblick über Formular 4: Aaron Cowen hat über Suvretta Capital Management am 11.07.2025 ein "Exit"-Formular 4 für ProKidney Corp. (PROK) eingereicht.

  • Keine Transaktionen wurden weder in den nicht-derivativen noch in den derivativen Tabellen gemeldet.
  • Die Einreichung dient ausschließlich dazu, offenzulegen, dass Cowen nicht mehr als wirtschaftlicher Eigentümer von mehr als 10 % der Class A Stammaktien von PROK gilt.
  • Die Unterschreitung der 10 %-Schwelle ist auf die Erhöhung der ausstehenden Aktien des Unternehmens zurückzuführen, wie in der Änderung des ProKidney Formulars S-3 vom 03.07.2025 angegeben; Cowens absolute Aktienanzahl ist unverändert gegenüber seinem am 22.10.2024 eingereichten Formular 3.
  • Cowen hält weiterhin PROK-Aktien, aber die Einreichung hebt die Verpflichtung zur Abgabe zukünftiger Formulare 4/5 auf, sofern sein Besitz nicht wieder 10 % übersteigt.

Für Investoren signalisiert die Einreichung eine geringere relative Insiderkonzentration, weist jedoch nicht auf Insiderverkäufe oder eine Änderung von Cowens absolutem Anteil hin.

Positive
  • No insider selling reported; Cowen’s absolute share count remains the same as disclosed in the prior Form 3.
Negative
  • Cowen’s ownership has fallen below the 10 % threshold, reducing a significant shareholder’s relative influence and eliminating mandatory insider reporting.

Insights

TL;DR: Exit Form 4 shows Cowen’s stake fell below 10 % due to dilution, not sales; impact on stock sentiment is modest.

The absence of any transaction codes or share movements confirms that Aaron Cowen did not sell or acquire ProKidney shares. His proportional ownership slipped under the 10 % reporting threshold after the company increased its outstanding share count (per the 07/03/2025 S-3 filing). While reduced insider concentration can be viewed slightly negatively because it diminishes a large shareholder’s influence, the unchanged absolute position limits market impact. Overall, this is informational rather than value-changing and should be treated as a neutral-to-slightly-negative governance development.

Panoramica del Modulo 4: Aaron Cowen, tramite Suvretta Capital Management, ha presentato un Modulo 4 di "uscita" per ProKidney Corp. (PROK) il 11/07/2025.

  • Nessuna transazione è stata riportata né nelle tabelle dei titoli non derivati né in quelle dei derivati.
  • La presentazione è effettuata esclusivamente per comunicare che Cowen non è più un azionista beneficiario di oltre il 10% delle azioni ordinarie di Classe A di PROK.
  • La riduzione al di sotto della soglia del 10% è dovuta all'aumento delle azioni in circolazione della società, come riportato nell'emendamento al Modulo S-3 di ProKidney del 03/07/2025; il numero assoluto di azioni detenute da Cowen rimane invariato rispetto al Modulo 3 presentato il 22/10/2024.
  • Cowen continua a detenere azioni PROK, ma questa comunicazione elimina l'obbligo di presentare futuri Moduli 4/5 a meno che la sua partecipazione non superi nuovamente il 10%.

Per gli investitori, la presentazione segnala una minore concentrazione relativa degli insider ma non indica vendite da parte degli insider né una variazione della quota assoluta di Cowen.

Resumen del Formulario 4: Aaron Cowen, a través de Suvretta Capital Management, presentó un Formulario 4 de "salida" para ProKidney Corp. (PROK) el 11/07/2025.

  • No se reportaron transacciones ni en las tablas de valores no derivados ni en las de derivados.
  • La presentación se realiza únicamente para revelar que Cowen ya no es un propietario beneficiario de más del 10% de las acciones comunes Clase A de PROK.
  • La reducción por debajo del umbral del 10% se atribuye al aumento en las acciones en circulación de la compañía, como se divulgó en la enmienda al Formulario S-3 de ProKidney del 03/07/2025; el conteo absoluto de acciones de Cowen no ha cambiado desde su Formulario 3 presentado el 22/10/2024.
  • Cowen sigue poseyendo acciones de PROK, pero la presentación elimina la obligación de presentar futuros Formularios 4/5 a menos que su propiedad vuelva a superar el 10%.

Para los inversores, la presentación indica una menor concentración relativa de insiders pero no señala ventas por parte de insiders ni un cambio en la participación absoluta de Cowen.

Form 4 개요: Aaron Cowen은 Suvretta Capital Management를 통해 2025년 7월 11일 ProKidney Corp. (PROK)에 대한 "퇴출" Form 4를 제출했습니다.

  • 비파생 및 파생 항목 모두에서 거래가 보고되지 않았습니다.
  • 이번 제출은 Cowen이 더 이상 PROK의 클래스 A 보통주 10% 이상을 실질적으로 소유하지 않음을 공개하기 위한 것입니다.
  • 10% 이하로 감소한 이유는 2025년 7월 3일자 ProKidney의 Form S-3 수정서에 공시된 회사 발행 주식 수 증가 때문이며, Cowen의 절대 주식 수는 2024년 10월 22일 제출한 Form 3과 변함이 없습니다.
  • Cowen은 PROK 주식을 계속 보유하고 있으나, 그의 소유 지분이 다시 10%를 초과하지 않는 한 앞으로 Form 4/5 제출 의무가 사라집니다.

투자자에게 이번 제출은 내부자 지분의 상대적 감소를 알리지만, 내부자 매도나 Cowen의 절대 지분 변화는 나타내지 않습니다.

Présentation du formulaire 4 : Aaron Cowen, via Suvretta Capital Management, a déposé un formulaire 4 de "sortie" pour ProKidney Corp. (PROK) le 11/07/2025.

  • Aucune transaction n’a été signalée dans les tableaux des titres non dérivés ou dérivés.
  • Le dépôt a été effectué uniquement pour divulguer que Cowen n’est plus un propriétaire bénéficiaire de plus de 10 % des actions ordinaires de classe A de PROK.
  • La diminution sous le seuil de 10 % est attribuée à l’augmentation des actions en circulation de la société, telle que divulguée dans l’amendement du formulaire S-3 de ProKidney en date du 03/07/2025 ; le nombre absolu d’actions détenues par Cowen reste inchangé par rapport à son formulaire 3 déposé le 22/10/2024.
  • Cowen continue de détenir des actions PROK, mais le dépôt supprime l’obligation de déposer de futurs formulaires 4/5 sauf si sa participation dépasse à nouveau 10 %.

Pour les investisseurs, ce dépôt signale une concentration relative moindre des initiés mais n’indique ni vente d’initiés ni changement dans la participation absolue de Cowen.

Überblick über Formular 4: Aaron Cowen hat über Suvretta Capital Management am 11.07.2025 ein "Exit"-Formular 4 für ProKidney Corp. (PROK) eingereicht.

  • Keine Transaktionen wurden weder in den nicht-derivativen noch in den derivativen Tabellen gemeldet.
  • Die Einreichung dient ausschließlich dazu, offenzulegen, dass Cowen nicht mehr als wirtschaftlicher Eigentümer von mehr als 10 % der Class A Stammaktien von PROK gilt.
  • Die Unterschreitung der 10 %-Schwelle ist auf die Erhöhung der ausstehenden Aktien des Unternehmens zurückzuführen, wie in der Änderung des ProKidney Formulars S-3 vom 03.07.2025 angegeben; Cowens absolute Aktienanzahl ist unverändert gegenüber seinem am 22.10.2024 eingereichten Formular 3.
  • Cowen hält weiterhin PROK-Aktien, aber die Einreichung hebt die Verpflichtung zur Abgabe zukünftiger Formulare 4/5 auf, sofern sein Besitz nicht wieder 10 % übersteigt.

Für Investoren signalisiert die Einreichung eine geringere relative Insiderkonzentration, weist jedoch nicht auf Insiderverkäufe oder eine Änderung von Cowens absolutem Anteil hin.

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
X
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
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*
Cowen Aaron

(Last) (First) (Middle)
C/O SUVRETTA CAPITAL MANAGEMENT, LLC
540 MADISON AVENUE, 7TH FLOOR

(Street)
NEW YORK NY 10022

(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
PROKIDNEY CORP. [ PROK ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director X 10% Owner
Officer (give title below) Other (specify below)
3. Date of Earliest Transaction (Month/Day/Year)
07/11/2025
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
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
Explanation of Responses:
Remarks:
The beneficial ownership information of Aaron Cowen (the "Reporting Person") has not changed from information set forth in the Form 3 filed by the Reporting Person on October 22, 2024. This "exit" Form 4 is voluntarily filed solely to report that the Reporting Person is no longer the beneficial owner of more than 10% of the outstanding shares Class A common stock, par value $0.0001 per share (the "Class A common stock"), of ProKidney Corp. (the "Issuer"), based on the number of shares of the Class A common stock outstanding as reported by the Issuer on July 3, 2025 in the Post-Effective Amendment No. 1 to the Registration Statement on Form S-3 filed on July 3, 2025 with the Securities and Exchange Commission.
/s/ Aaron Cowen 07/11/2025
** 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

Why did Aaron Cowen file an "exit" Form 4 for PROK?

Because his ownership percentage in ProKidney Corp. fell below 10 %, ending his Section 16 reporting obligation.

Did Cowen buy or sell ProKidney shares?

No. The Form 4 reports no acquisitions or disposals; the stake percentage changed due to higher shares outstanding.

What date did Cowen’s ownership drop below 10 %?

Based on the issuer’s share count in a filing dated 07/03/2025; the Form 4 is dated 07/11/2025.

How does falling below 10 % affect insider reporting?

Once below 10 %, Cowen is no longer required to file Forms 4 or 5 unless his ownership rises above that level again.

Does this indicate bearish sentiment from the insider?

Not necessarily; no shares were sold. The percentage drop stems from share dilution, not insider disposition.
ProKidney

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483.17M
90.61M
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9.33%
Biotechnology
Biological Products, (no Disgnostic Substances)
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United States
WINSTON-SALEM