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

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

GRI Bio, Inc. director Camilla V. Simpson was granted a stock option on 08/13/2025 to buy 4,527 shares of common stock at an exercise price of $1.30 per share. The option appears in Table II as a derivative security with an expiration date of 08/13/2035. The filing states the option vests in four equal quarterly installments and is fully vested on the first anniversary of the grant date. The reporting person is shown as a director and the Form 4 was signed by an attorney-in-fact on 08/14/2025.

GRI Bio, Inc. la direttrice Camilla V. Simpson ha ricevuto un’opzione su azioni il 13/08/2025 per acquistare 4.527 azioni ordinarie a un prezzo di esercizio di $1,30 per azione. L’opzione è riportata nella Tabella II come strumento derivato con scadenza il 13/08/2035. La documentazione indica che l’opzione matura in quattro rate trimestrali uguali ed è completamente maturata al primo anniversario della data di concessione. La persona che effettua la comunicazione risulta essere una direttrice e il Modulo 4 è stato firmato da un procuratore il 14/08/2025.

GRI Bio, Inc. la directora Camilla V. Simpson recibió una opción sobre acciones el 13/08/2025 para comprar 4.527 acciones ordinarias a un precio de ejercicio de $1.30 por acción. La opción figura en la Tabla II como un valor derivado con fecha de vencimiento el 13/08/2035. El documento indica que la opción vence en cuatro cuotas trimestrales iguales y queda totalmente consolidada al primer aniversario de la fecha de concesión. La persona informante aparece como directora y el Formulario 4 fue firmado por un apoderado el 14/08/2025.

GRI Bio, Inc.의 이사 Camilla V. Simpson은 2025-08-13에 보통주 4,527주를 주당 $1.30의 행사가격으로 매수할 수 있는 스톡옵션을 부여받았습니다. 해당 옵션은 파생증권으로 표 II에 기재되어 만기일이 2035-08-13로 되어 있습니다. 제출서류에는 옵션이 동일한 4번의 분기별 할부로 베스트(취득)되며 부여일로부터 1주년에는 완전히 베스트된다고 명시되어 있습니다. 보고자는 이사로 기재되어 있으며 Form 4는 2025-08-14에 대리인이 서명했습니다.

GRI Bio, Inc. la administratrice Camilla V. Simpson s’est vu accorder une option d’achat d’actions le 13/08/2025 portant sur 4 527 actions ordinaires au prix d’exercice de 1,30 $ par action. L’option apparaît dans le Tableau II comme un titre dérivé avec une date d’expiration au 13/08/2035. Le dossier indique que l’option devient acquise en quatre versements trimestriels égaux et est entièrement acquise à la date du premier anniversaire de la concession. La personne déclarée figure en tant qu’administratrice et le formulaire 4 a été signé par un mandataire le 14/08/2025.

GRI Bio, Inc.-Direktorin Camilla V. Simpson erhielt am 13.08.2025 eine Aktienoption zum Kauf von 4.527 Stammaktien zu einem Ausübungspreis von $1,30 je Aktie. Die Option ist in Tabelle II als derivates Wertpapier mit Ablaufdatum 13.08.2035 aufgeführt. In der Einreichung heißt es, die Option fällt in vier gleiche vierteljährliche Tranchen und ist zum ersten Jahrestag des Gewährungsdatums vollständig unverfallbar. Die meldende Person wird als Direktorin ausgewiesen und das Formular 4 wurde am 14.08.2025 von einem Bevollmächtigten unterzeichnet.

Positive
  • 4,527 stock options granted to director Camilla V. Simpson are disclosed, including exercise price $1.30 and expiration 08/13/2035
  • Vesting schedule is specified: four equal quarterly installments, fully vested on the first anniversary of the grant
Negative
  • None.

Insights

TL;DR: Director Camilla Simpson received a 4,527-option grant at $1.30, expiring 08/13/2035; vests over one year in quarterly installments.

The Form 4 documents a compensatory equity award to an insider, specifying the grant size, exercise price, and a ten-year expiration. For investors, this is a routine disclosure of insider compensation and ownership change. The grant increases the director's potential equity stake if exercised, and the vesting schedule ties realization to continued service during the next year. The filing contains clear transaction date and expiration details and is properly executed by an attorney-in-fact.

TL;DR: Standard director option award recorded; vesting over four quarterly installments with a ten-year term is disclosed.

The disclosure is concise and follows Section 16 reporting requirements. The grant's vesting schedule—four equal quarterly installments culminating at one year—is explicitly stated, which clarifies when economic benefit accrues to the reporting person. The Form identifies the reporting person as a director and includes signature via attorney-in-fact. No amendments, other arrangements, or additional beneficial ownership details are provided in this filing.

GRI Bio, Inc. la direttrice Camilla V. Simpson ha ricevuto un’opzione su azioni il 13/08/2025 per acquistare 4.527 azioni ordinarie a un prezzo di esercizio di $1,30 per azione. L’opzione è riportata nella Tabella II come strumento derivato con scadenza il 13/08/2035. La documentazione indica che l’opzione matura in quattro rate trimestrali uguali ed è completamente maturata al primo anniversario della data di concessione. La persona che effettua la comunicazione risulta essere una direttrice e il Modulo 4 è stato firmato da un procuratore il 14/08/2025.

GRI Bio, Inc. la directora Camilla V. Simpson recibió una opción sobre acciones el 13/08/2025 para comprar 4.527 acciones ordinarias a un precio de ejercicio de $1.30 por acción. La opción figura en la Tabla II como un valor derivado con fecha de vencimiento el 13/08/2035. El documento indica que la opción vence en cuatro cuotas trimestrales iguales y queda totalmente consolidada al primer aniversario de la fecha de concesión. La persona informante aparece como directora y el Formulario 4 fue firmado por un apoderado el 14/08/2025.

GRI Bio, Inc.의 이사 Camilla V. Simpson은 2025-08-13에 보통주 4,527주를 주당 $1.30의 행사가격으로 매수할 수 있는 스톡옵션을 부여받았습니다. 해당 옵션은 파생증권으로 표 II에 기재되어 만기일이 2035-08-13로 되어 있습니다. 제출서류에는 옵션이 동일한 4번의 분기별 할부로 베스트(취득)되며 부여일로부터 1주년에는 완전히 베스트된다고 명시되어 있습니다. 보고자는 이사로 기재되어 있으며 Form 4는 2025-08-14에 대리인이 서명했습니다.

GRI Bio, Inc. la administratrice Camilla V. Simpson s’est vu accorder une option d’achat d’actions le 13/08/2025 portant sur 4 527 actions ordinaires au prix d’exercice de 1,30 $ par action. L’option apparaît dans le Tableau II comme un titre dérivé avec une date d’expiration au 13/08/2035. Le dossier indique que l’option devient acquise en quatre versements trimestriels égaux et est entièrement acquise à la date du premier anniversaire de la concession. La personne déclarée figure en tant qu’administratrice et le formulaire 4 a été signé par un mandataire le 14/08/2025.

GRI Bio, Inc.-Direktorin Camilla V. Simpson erhielt am 13.08.2025 eine Aktienoption zum Kauf von 4.527 Stammaktien zu einem Ausübungspreis von $1,30 je Aktie. Die Option ist in Tabelle II als derivates Wertpapier mit Ablaufdatum 13.08.2035 aufgeführt. In der Einreichung heißt es, die Option fällt in vier gleiche vierteljährliche Tranchen und ist zum ersten Jahrestag des Gewährungsdatums vollständig unverfallbar. Die meldende Person wird als Direktorin ausgewiesen und das Formular 4 wurde am 14.08.2025 von einem Bevollmächtigten unterzeichnet.

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).
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*
SIMPSON CAMILLA V

(Last) (First) (Middle)
C/O GRI BIO, INC.
2223 AVENIDA DE LA PLAYA, SUITE 208

(Street)
LA JOLLA CA 92037

(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
GRI Bio, Inc. [ GRI ]
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)
08/13/2025
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
Stock Option (Right to Buy) $1.3 08/13/2025 A 4,527 (1) 08/13/2035 Common Stock 4,527 $0 4,527 D
Explanation of Responses:
1. The stock option vests in 4 equal quarterly installments such that the stock option is fully vested on the first anniversary of the date of grant.
Remarks:
/s/ Leanne Kelly, Attorney-in-Fact 08/14/2025
** 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 Camilla V. Simpson report on Form 4 for GRI (GRI)?

The Form 4 reports a grant on 08/13/2025 of 4,527 stock options to purchase common stock at an exercise price of $1.30 with an expiration of 08/13/2035.

When do the options granted to Camilla V. Simpson vest?

The options vest in four equal quarterly installments and are fully vested on the first anniversary of the grant date.

How many shares underlying the derivative were reported as beneficially owned after the transaction?

The filing shows the reporting person beneficially owns 4,527 shares underlying the option following the reported transaction.

What is the relationship of the reporting person to GRI Bio, Inc.?

Camilla V. Simpson is reported as a director of GRI Bio, Inc.

Who signed the Form 4 filing and when was it signed?

The Form 4 was signed by Leanne Kelly, Attorney-in-Fact on 08/14/2025.
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Biotechnology
Pharmaceutical Preparations
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United States
LA JOLLA