STOCK TITAN

[Form 4] Gossamer Bio, Inc. Insider Trading Activity

Filing Impact
(Low)
Filing Sentiment
(Neutral)
Form Type
4

Robert Paul Smith Jr., identified as an Officer (Chief Commercial Officer) of Gossamer Bio, Inc. (GOSS), reported a securities acquisition on 10/01/2025. The filing shows an award of 162,500 performance stock units issued at $0 that will vest in full upon the earlier of (i) approval of a new drug application for seralutinib or (ii) a change in control, in either case on or before the fourth anniversary of the grant, and subject to his continuous service to the company. The filing also discloses 25,000 shares held indirectly by a family trust. The Form 4 was submitted by one reporting person and signed by an attorney-in-fact on 10/02/2025.

Robert Paul Smith Jr., identificato come un Funzionario (Chief Commercial Officer) di Gossamer Bio, Inc. (GOSS), ha riportato un'acquisizione di titoli il 10/01/2025. La dichiarazione mostra un premio di 162.500 unità di azioni di performance emesse a $0 che matureranno integralmente al prima della data (i) l'approvazione di una nuova domanda di farmaco per seralutinib o (ii) un cambio di controllo, in entrambi i casi entro la quarta annata del grant, e soggette al suo servizio continuo all'azienda. La dichiarazione rivela inoltre 25.000 azioni detenute indirettamente da un trust familiare. Il Form 4 è stato presentato da una persona informante e firmato da un procuratore-in-fatto il 02/10/2025.

Robert Paul Smith Jr., identificado como un Oficial (Chief Commercial Officer) de Gossamer Bio, Inc. (GOSS), reportó una adquisición de valores el 01/10/2025. El informe muestra una adjudicación de 162,500 unidades de acciones de desempeño emitidas a $0 que se consolidarán en su totalidad al primero de (i) la aprobación de una nueva solicitud de fármaco para seralutinib o (ii) un cambio de control, en cualquiera de los casos antes del cuarto aniversario de la concesión, y sujeto a su servicio continuo a la empresa. El informe también divulga 25,000 acciones poseídas indirectamente por un fideicomiso familiar. El Formulario 4 fue presentado por una persona informante y firmado por un apoderado el 02/10/2025.

로버트 폴 스미스 주니어는 그로써 최고상무책임자(COO)로 식별되며 Gossamer Bio, Inc. (GOSS)공무원(상무 이사)인 것으로 보고되었고, 2025년 10월 1일에 증권 취득을 보고했습니다. 신고서는 162,500의 성과 주식 단위가 $0의 발행가로 부여되었음을 보여주며, 이는 (i) 신약의 승인을 위한 신청서 seralutinib의 승인이거나 (ii) 경영권 변경 중 더 이른 시점에 전부 vest되며, 어느 경우든 부여로부터 4주년(4년차) 이전에 그의 회사에 대한 지속적인 근무 조건이 충족될 때 vesting됩니다. 또한 신고서는 가족 신탁이 간접적으로 보유한 25,000주의 주식을 공개합니다. Form 4는 한 명의 보고인에 의해 제출되었고, 2025년 10월 2일에 대리인이 서명했습니다.

Robert Paul Smith Jr., identifié comme un Agent (Chief Commercial Officer) de Gossamer Bio, Inc. (GOSS), a signalé une acquisition de titres le 01/10/2025. Le dossier montre une attribution de 162 500 unités d’actions de performance émises à $0 qui vestent intégralement à l’aquelle échéance plus tôt entre (i) l’approbation d’une nouvelle demande de médicament pour seralutinib ou (ii) un changement de contrôle, dans l’un ou l’autre cas avant le quatrième anniversaire de la subvention, et sous réserve de sa continuité de service envers la société. Le dossier divulge également 25 000 actions détenues indirectement par un trust familial. Le Form 4 a été soumis par une personne déclarante et signé par un mandataire le 02/10/2025.

Robert Paul Smith Jr., identifiziert als ein Beauftragter (Chief Commercial Officer) von Gossamer Bio, Inc. (GOSS), meldete einen Wertpapierkauf am 10/01/2025. Die Einreichung zeigt eine Zuteilung von 162.500 Leistungsaktien-Einheiten, ausgegeben zu $0, die vollständig vesten, beim frühesten von (i) der Zulassung eines neuen Arzneimittelantrags für seralutinib oder (ii) einer Veränderung der Kontrolle, in beiden Fällen vor dem vierten Jubiläum der Gewährung, und vorbehaltlich seiner fortlaufenden Dienstzeit beim Unternehmen. Die Einreichung offenbart außerdem, dass 25.000 Aktien indirekt durch einen Familienstift gehalten werden. Das Formular 4 wurde von einer meldenden Person eingereicht und von einem Bevollmächtigten am 02/10/2025 unterschrieben.

روبرت بول سميث جونيور، المحدّد كـ ضابط (رئيس قسم التسويق) في جوسيمير بيو، إنك. (GOSS)، أبلغ عن اكتساب أوراق مالية في 01/10/2025. يظهر الملف منحاً من 162,500 وحدة أسهم أداء صادرة بسعر $0 والتي سوف تتثبت بالكامل عند أقرب تاريخ من (1) موافقة طلب دواء جديد لـ seralutinib أو (2) تغيّر في السيطرة، في كلتا الحالتين قبل السنة الرابعة من المنحة، وبشرط استمراره في الخدمة للشركة. كما يكشف الملف عن 25,000 سهماً مملوكاً بشكل غير مباشر من قبل صندوق عائلي. تم تقديم النموذج 4 من قبل شخص واحد مُبلغ، ووقع عليه وكيلٌ بالنيابة في 02/10/2025.

Robert Paul Smith Jr.,被识别为 Gossamer Bio, Inc. (GOSS)官员(首席商务官),在 2025/10/01 报告了证券取得。申报显示以 $0 发放的 162,500 股份业绩单位,在早于以下时间之一时全部归属:(i) 针对 seralutinib 的新药申请获得批准,或 (ii) 控制权变更,在授予后的第四个周年日前,并以他对公司的持续服务为前提。申报还披露由家庭信托间接持有的 25,000 股。 Form 4 由一名申报人提交,并于 2025/10/02 由代理人签署。

Positive
  • 162,500 performance stock units awarded tying pay to seralutinib NDA approval or change in control
  • 25,000 shares held indirectly by a family trust, increasing disclosed insider alignment
Negative
  • None.

Insights

Performance award of 162,500 units vests on NDA approval or change in control.

The grant is structured as performance stock units that carry no immediate cash cost ($0) to the reporting person and vest only upon specific corporate events: approval of an NDA for seralutinib or a change in control, each capped at the fourth anniversary of the grant. This aligns executive payout to milestone outcomes and ties potential equity realization to either product approval or corporate transaction.

The award remains subject to the reporting person's continuous service, which can forfeit units if employment terminates before vesting.

Reporting shows direct and indirect ownership totaling 187,500 shares (162,500 direct, 25,000 indirect).

The Form 4 records a direct beneficial interest in 162,500 performance stock units and an indirect holding of 25,000 shares via a family trust. The filing was made as an individual report and executed by an attorney-in-fact, indicating formal compliance with Section 16 reporting requirements.

No derivative instruments, exercised options, or cash purchases are reported in this filing.

Robert Paul Smith Jr., identificato come un Funzionario (Chief Commercial Officer) di Gossamer Bio, Inc. (GOSS), ha riportato un'acquisizione di titoli il 10/01/2025. La dichiarazione mostra un premio di 162.500 unità di azioni di performance emesse a $0 che matureranno integralmente al prima della data (i) l'approvazione di una nuova domanda di farmaco per seralutinib o (ii) un cambio di controllo, in entrambi i casi entro la quarta annata del grant, e soggette al suo servizio continuo all'azienda. La dichiarazione rivela inoltre 25.000 azioni detenute indirettamente da un trust familiare. Il Form 4 è stato presentato da una persona informante e firmato da un procuratore-in-fatto il 02/10/2025.

Robert Paul Smith Jr., identificado como un Oficial (Chief Commercial Officer) de Gossamer Bio, Inc. (GOSS), reportó una adquisición de valores el 01/10/2025. El informe muestra una adjudicación de 162,500 unidades de acciones de desempeño emitidas a $0 que se consolidarán en su totalidad al primero de (i) la aprobación de una nueva solicitud de fármaco para seralutinib o (ii) un cambio de control, en cualquiera de los casos antes del cuarto aniversario de la concesión, y sujeto a su servicio continuo a la empresa. El informe también divulga 25,000 acciones poseídas indirectamente por un fideicomiso familiar. El Formulario 4 fue presentado por una persona informante y firmado por un apoderado el 02/10/2025.

로버트 폴 스미스 주니어는 그로써 최고상무책임자(COO)로 식별되며 Gossamer Bio, Inc. (GOSS)공무원(상무 이사)인 것으로 보고되었고, 2025년 10월 1일에 증권 취득을 보고했습니다. 신고서는 162,500의 성과 주식 단위가 $0의 발행가로 부여되었음을 보여주며, 이는 (i) 신약의 승인을 위한 신청서 seralutinib의 승인이거나 (ii) 경영권 변경 중 더 이른 시점에 전부 vest되며, 어느 경우든 부여로부터 4주년(4년차) 이전에 그의 회사에 대한 지속적인 근무 조건이 충족될 때 vesting됩니다. 또한 신고서는 가족 신탁이 간접적으로 보유한 25,000주의 주식을 공개합니다. Form 4는 한 명의 보고인에 의해 제출되었고, 2025년 10월 2일에 대리인이 서명했습니다.

Robert Paul Smith Jr., identifié comme un Agent (Chief Commercial Officer) de Gossamer Bio, Inc. (GOSS), a signalé une acquisition de titres le 01/10/2025. Le dossier montre une attribution de 162 500 unités d’actions de performance émises à $0 qui vestent intégralement à l’aquelle échéance plus tôt entre (i) l’approbation d’une nouvelle demande de médicament pour seralutinib ou (ii) un changement de contrôle, dans l’un ou l’autre cas avant le quatrième anniversaire de la subvention, et sous réserve de sa continuité de service envers la société. Le dossier divulge également 25 000 actions détenues indirectement par un trust familial. Le Form 4 a été soumis par une personne déclarante et signé par un mandataire le 02/10/2025.

Robert Paul Smith Jr., identifiziert als ein Beauftragter (Chief Commercial Officer) von Gossamer Bio, Inc. (GOSS), meldete einen Wertpapierkauf am 10/01/2025. Die Einreichung zeigt eine Zuteilung von 162.500 Leistungsaktien-Einheiten, ausgegeben zu $0, die vollständig vesten, beim frühesten von (i) der Zulassung eines neuen Arzneimittelantrags für seralutinib oder (ii) einer Veränderung der Kontrolle, in beiden Fällen vor dem vierten Jubiläum der Gewährung, und vorbehaltlich seiner fortlaufenden Dienstzeit beim Unternehmen. Die Einreichung offenbart außerdem, dass 25.000 Aktien indirekt durch einen Familienstift gehalten werden. Das Formular 4 wurde von einer meldenden Person eingereicht und von einem Bevollmächtigten am 02/10/2025 unterschrieben.

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).
1. Name and Address of Reporting Person*
Smith Robert Paul JR

(Last) (First) (Middle)
3115 MERRYFIELD ROW, SUITE 120

(Street)
SAN DIEGO CA 92121

(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
Gossamer Bio, Inc. [ GOSS ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director 10% Owner
X Officer (give title below) Other (specify below)
Chief Commercial Officer
3. Date of Earliest Transaction (Month/Day/Year)
10/01/2025
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 10/01/2025 A 162,500(1) A $0 162,500 D
Common Stock 25,000 I By family 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
Explanation of Responses:
1. Represents performance stock unit award, which will vest in full upon the earlier of (i) the approval of a new drug application for seralutinib or (ii) a change in control, in either case on or prior to the fourth anniversary of the grant date, and subject to the Reporting Person's continuous service to the Issuer.
Remarks:
/s/ Jeff Boerneke, Attorney-in-Fact 10/02/2025
** 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 did Robert Paul Smith Jr. report on Form 4 for GOSS?

He reported an award of 162,500 performance stock units granted on 10/01/2025 and 25,000 shares held indirectly by a family trust.

When do the 162,500 performance stock units vest?

They vest in full upon the earlier of approval of an NDA for seralutinib or a change in control, on or prior to the fourth anniversary of the grant, subject to continuous service.

Was there a cash price paid for the awarded units?

No cash price is reported; the units are listed with a $0 price in the Form 4.

Who filed and signed the Form 4 for this transaction?

The Form 4 was filed by one reporting person and the signature on the filing is by Jeff Boerneke, Attorney-in-Fact dated 10/02/2025.

Does the filing show any derivative securities or exercised options?

No. Table II for derivative securities shows no reported transactions or holdings in this filing.
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Biotechnology
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United States
SAN DIEGO