STOCK TITAN

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

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

Hasnain Faheem, President & CEO and a director of Gossamer Bio, Inc. (GOSS), reported a non‑derivative acquisition dated 10/01/2025 of 437,500 performance stock units at a reported price of $0. After the award, the filing shows 557,793 shares beneficially owned directly and 5,408,073 shares beneficially owned indirectly through a family trust. The performance stock units will vest in full upon the earlier of the approval of a new drug application for seralutinib or a change in control, in either case on or before the fourth anniversary of the grant date, and are subject to the reporting person’s continuous service to the issuer. The Form 4 was signed on 10/02/2025 by an attorney‑in‑fact.

Hasnain Faheem, Presidente e CEO e direttore di Gossamer Bio, Inc. (GOSS), ha riferito un'acquisizione non derivativa datata 10/01/2025 di 437.500 unità azionarie di performance stock (PSU) a un prezzo riportato di $0. Dopo l'assegnazione, la registrazione mostra 557.793 azioni detenute direttamente e 5.408.073 azioni detenute indirettamente tramite un trust familiare. Le unità di azioni di performance si matureranno totalmente al verificarsi della prima delle seguenti condizioni: l'approvazione di una domanda di nuovo farmaco per seralutinib o un cambio di controllo, in entrambi i casi entro il quarto anniversario dalla data di concessione, e sono soggette al continuo servizio del soggetto al fornitore. Il Form 4 è stato firmato in data 02/10/2025 da un procuratore in fact.

Hasnain Faheem, Presidente y CEO y director de Gossamer Bio, Inc. (GOSS), informó una adquisición no derivada con fecha de 10/01/2025 de 437,500 unidades de acciones de rendimiento (stock units) a un precio reportado de $0. Después de la adjudicación, el expediente muestra 557,793 acciones beneficiariamente poseídas directamente y 5,408,073 acciones poseídas indirectamente a través de un fideicomiso familiar. Las unidades de acciones de rendimiento se vencerán por completo al ocurrir la primera de las siguientes condiciones: la aprobación de una solicitud de un nuevo fármaco para seralutinib o un cambio de control, en cualquiera de los dos casos antes del cuarto aniversario de la fecha de concesión, y están sujetas al servicio continuo de la persona informante hacia la emisora. El Form 4 fue firmado el 02/10/2025 por un apoderado.

Hasnain FaheemGossamer Bio, Inc. (GOSS)의 회장 겸 CEO이자 이사로, 2025년 10월 1일로 기재된 437,500 주의 성과 주식 단위(performance stock units)를 $0의 보고 가격으로 비파생적 취득(non-derivative acquisition)을 보고했다. 수여 후, 제출서에는 557,793 주가 직접적으로 이익 소유되고, 가족 신탁을 통해 간접적으로 소유한 주식은 5,408,073 주이다. 성과 주식 단위는 새 의약품 승인을 위한 신청(seralutinib) 또는 지배권 변경 중 먼저 발생하는 시점에, 수여일로부터 4주년 이내에 전액 취득되며, 발행사에 대한 피고인(공시인)의 지속적 서비스 조건이 적용된다. Form 4는 2025년 10월 2일에 대리인에 의해 서명되었다.

Hasnain Faheem, Président et PDG et administrateur de Gossamer Bio, Inc. (GOSS), a signalé une acquisition non dérivée datée du 10/01/2025 de 437 500 unités d'actions de performance à un prix rapporté de $0. Après l'attribution, le dossier montre 557 793 actions détenues directement et 5 408 073 actions détenues indirectement par le biais d'une fiducie familiale. Les unités d'actions de performance seront entièrement acquises lors de la première des événements suivants: l'approbation d'une demande de nouveau médicament pour seralutinib ou un changement de contrôle, dans les deux cas avant le quatrième anniversaire de la date d'octroi, et elles sont soumises au service continu de la personne déclarante envers l'émetteur. Le Form 4 a été signé le 02/10/2025 par un mandataire.

Hasnain Faheem, Präsident und CEO sowie Direktor von Gossamer Bio, Inc. (GOSS), berichtete von einem nicht derivativen Erwerb datiert auf den 10/01/2025 von 437.500 Performance-Aktien-Einheiten (PSUs) zu einem gemeldeten Preis von $0. Nach der Zuteilung zeigt die Anmeldung 557.793 direkt beneficial gehaltene Aktien und 5.408.073 Aktien, die indirekt durch einen Familientrust gehalten werden. Die PSU werden vollständig vesten, sobald entweder eine Zulassung für ein neues Arzneimittel für seralutinib erteilt wird oder eine Change in Control erfolgt, jeweils vor dem vierten Jahrestag des Gewährungsdatums, und sie unterliegen dem fortlaufenden Dienst der meldenden Person gegenüber dem Emittenten. Das Formular 4 wurde am 02/10/2025 von einem Bevollmächtigten unterschrieben.

Hasnain Faheem، رئيس مجلس الإدارة والمدير التنفيذي وعضو مجلس إدارة في Gossamer Bio, Inc. (GOSS)، أبلغ عن اكتساب غير مشتق مؤرّخ في 10/01/2025 لــ 437,500 وحدة أسهم أداء بسعر مُعلَن قدره $0. بعد المنح، يظهر الملف 557,793 سهماً مملوكاً مباشرةً و 5,408,073 سهماً مملوكاً بشكل غير مباشر من خلال صندوق عائلي. ستُكتسب وحدات الأسهم الأداء بشكل كامل عند تحقق إحدى الحالتين التاليتين: موافقة على طلب دواء جديد لـ seralutinib أو تغيير في السيطرة، في كلا الحالتين قبل انتهاء السنة الرابعة من تاريخ المنح، وهي خاضعة للخدمة المستمرة للمبلغ إلى المُصدر. تم توقيع النموذج 4 في 02/10/2025 من قبل وكيل قانوني.

Hasnain Faheem,担任 Gossamer Bio, Inc. (GOSS) 的总裁兼首席执行官及董事,报告了日期为 2025/10/01 的非衍生取得,涉及 437,500 股绩效单位(performance stock units),披露价格为 $0。授予后,备案显示直接实际拥有 557,793 股,另外通过家族信托间接拥有 5,408,073 股。绩效单位在符合以下条件中的早先发生者时全部归属:对新药申请获批(针对 seralutinib)或控制权变更,在授予之日四周年之前的任一情况下,且受制于披露人对发行人的持续服务。本表格 4 由代理律师于 2025/10/02 签署。

Positive
  • 437,500 performance stock units granted to the CEO on 10/01/2025
  • Post‑grant beneficial ownership increased to 557,793 direct and 5,408,073 indirect shares
  • Vesting tied to concrete milestones: NDA approval for seralutinib or a change in control (within four years)
Negative
  • None.

Insights

Insider award increases CEO's direct and indirect holdings and ties vesting to an NDA approval or change in control.

The filing shows a 437,500 performance stock unit grant to Hasnain Faheem dated 10/01/2025, recorded at $0. Following the grant, reported beneficial ownership is 557,793 shares direct and 5,408,073 shares indirect via a family trust.

The award's vesting is explicitly conditioned on the earlier of approval of an NDA for seralutinib or a change in control, each occurring on or before the fourth anniversary of the grant date, and requires continuous service. Monitor the NDA approval milestone or any announced change in control as clear vesting triggers.

Hasnain Faheem, Presidente e CEO e direttore di Gossamer Bio, Inc. (GOSS), ha riferito un'acquisizione non derivativa datata 10/01/2025 di 437.500 unità azionarie di performance stock (PSU) a un prezzo riportato di $0. Dopo l'assegnazione, la registrazione mostra 557.793 azioni detenute direttamente e 5.408.073 azioni detenute indirettamente tramite un trust familiare. Le unità di azioni di performance si matureranno totalmente al verificarsi della prima delle seguenti condizioni: l'approvazione di una domanda di nuovo farmaco per seralutinib o un cambio di controllo, in entrambi i casi entro il quarto anniversario dalla data di concessione, e sono soggette al continuo servizio del soggetto al fornitore. Il Form 4 è stato firmato in data 02/10/2025 da un procuratore in fact.

Hasnain Faheem, Presidente y CEO y director de Gossamer Bio, Inc. (GOSS), informó una adquisición no derivada con fecha de 10/01/2025 de 437,500 unidades de acciones de rendimiento (stock units) a un precio reportado de $0. Después de la adjudicación, el expediente muestra 557,793 acciones beneficiariamente poseídas directamente y 5,408,073 acciones poseídas indirectamente a través de un fideicomiso familiar. Las unidades de acciones de rendimiento se vencerán por completo al ocurrir la primera de las siguientes condiciones: la aprobación de una solicitud de un nuevo fármaco para seralutinib o un cambio de control, en cualquiera de los dos casos antes del cuarto aniversario de la fecha de concesión, y están sujetas al servicio continuo de la persona informante hacia la emisora. El Form 4 fue firmado el 02/10/2025 por un apoderado.

Hasnain FaheemGossamer Bio, Inc. (GOSS)의 회장 겸 CEO이자 이사로, 2025년 10월 1일로 기재된 437,500 주의 성과 주식 단위(performance stock units)를 $0의 보고 가격으로 비파생적 취득(non-derivative acquisition)을 보고했다. 수여 후, 제출서에는 557,793 주가 직접적으로 이익 소유되고, 가족 신탁을 통해 간접적으로 소유한 주식은 5,408,073 주이다. 성과 주식 단위는 새 의약품 승인을 위한 신청(seralutinib) 또는 지배권 변경 중 먼저 발생하는 시점에, 수여일로부터 4주년 이내에 전액 취득되며, 발행사에 대한 피고인(공시인)의 지속적 서비스 조건이 적용된다. Form 4는 2025년 10월 2일에 대리인에 의해 서명되었다.

Hasnain Faheem, Président et PDG et administrateur de Gossamer Bio, Inc. (GOSS), a signalé une acquisition non dérivée datée du 10/01/2025 de 437 500 unités d'actions de performance à un prix rapporté de $0. Après l'attribution, le dossier montre 557 793 actions détenues directement et 5 408 073 actions détenues indirectement par le biais d'une fiducie familiale. Les unités d'actions de performance seront entièrement acquises lors de la première des événements suivants: l'approbation d'une demande de nouveau médicament pour seralutinib ou un changement de contrôle, dans les deux cas avant le quatrième anniversaire de la date d'octroi, et elles sont soumises au service continu de la personne déclarante envers l'émetteur. Le Form 4 a été signé le 02/10/2025 par un mandataire.

Hasnain Faheem, Präsident und CEO sowie Direktor von Gossamer Bio, Inc. (GOSS), berichtete von einem nicht derivativen Erwerb datiert auf den 10/01/2025 von 437.500 Performance-Aktien-Einheiten (PSUs) zu einem gemeldeten Preis von $0. Nach der Zuteilung zeigt die Anmeldung 557.793 direkt beneficial gehaltene Aktien und 5.408.073 Aktien, die indirekt durch einen Familientrust gehalten werden. Die PSU werden vollständig vesten, sobald entweder eine Zulassung für ein neues Arzneimittel für seralutinib erteilt wird oder eine Change in Control erfolgt, jeweils vor dem vierten Jahrestag des Gewährungsdatums, und sie unterliegen dem fortlaufenden Dienst der meldenden Person gegenüber dem Emittenten. Das Formular 4 wurde am 02/10/2025 von einem Bevollmächtigten 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*
Hasnain Faheem

(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)
X Director 10% Owner
X Officer (give title below) Other (specify below)
President & CEO
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 437,500(1) A $0 557,793 D
Common Stock 5,408,073 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 transaction did Hasnain Faheem report on Form 4 for GOSS?

He reported the acquisition of 437,500 performance stock units dated 10/01/2025 at a reported price of $0.

How many GOSS shares does Hasnain Faheem beneficially own after the grant?

The filing shows 557,793 shares beneficially owned directly and 5,408,073 shares beneficially owned indirectly through a family trust.

What are the vesting conditions for the performance stock units?

The units vest in full upon the earlier of approval of a new drug application for seralutinib or a change in control, on or before the fourth anniversary of the grant, subject to continuous service.

When was the Form 4 signed and filed?

The transaction date is 10/01/2025 and the Form 4 bears a signature dated 10/02/2025 by an attorney‑in‑fact.

What role does Hasnain Faheem hold at Gossamer Bio?

He is reported as President & CEO and a Director of Gossamer Bio.
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Biotechnology
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United States
SAN DIEGO