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GRINasdaqPharmaceutical PreparationsFiscal year ends December 31

GRI Bio, Inc.

Financials through Q2 FY2026, quarter ended Jun 30, 2026Last filing: 10-Q on Aug 14, 2026
$1.45+0.07 (+5.07%)

Close on Oct 19, 2026

Market cap
$2.62M
P/E (TTM)
–
Dividend yield
–

About GRI Bio

Pharmaceutical Preparations, SIC 2834

GRI Bio is a clinical-stage biopharmaceutical company focused on discovering, developing, and commercializing innovative therapies that target serious diseases associated with dysregulated immune responses. Its pipeline concentrates on inflammatory, fibrotic, and autoimmune disorders by regulating Natural Killer T (NKT) cell activity. The company's lead product candidate, GRI-0621, is an oral inhibitor of type 1 invariant NKT cells being developed to treat severe fibrotic lung diseases, primarily idiopathic pulmonary fibrosis. Its portfolio also includes GRI-0803, an oral activator of type 2 diverse NKT cells aimed at treating autoimmune conditions such as systemic lupus erythematosus, along with a proprietary compound library. Because its pipeline is in clinical and preclinical development stages, the company serves patient populations in clinical trials rather than commercial end customers.

The company operates without internal commercial manufacturing infrastructure, contracting with third-party manufacturers to supply product candidates for its research and clinical studies. Its clinical studies include multicenter and multinational trials. The company's headquarters are not stated in the text.

Summary of the business section of GRI Bio's latest annual report, written by StockData.

Company profile

Company

Legal name
GRI Bio, Inc.
Headquarters
La Jolla, CA
Address
2223 Avenida De La Playa, Suite 208 92037
Phone
(619) 400-1171
Employees
4, Dec 31, 2025
Industry
Pharmaceutical Preparations
Incorporated in
Delaware
Fiscal year ends
December 31
Auditor
WithumSmith+Brown, PC, San Francisco, California

Stock & identifiers

Ticker
GRI
Exchange
Nasdaq
IPO date
Feb 11, 2021
Shares outstanding
2M, Aug 13, 2026
Public float
$1.50M, Jun 30, 2025
Filer category
<br>Emerging growth company
Stock splits
1-for-28 reverse, Jan 26, 2026; 1-for-17 reverse, Feb 24, 2025; 1-for-13 reverse, Jun 18, 2024; 1-for-7 reverse, Jan 30, 2024; 1-for-7 reverse, Jan 29, 2024; 1-for-30 reverse, Apr 24, 2023; 1-for-30 reverse, Apr 21, 2023
SEC CIK
1824293
CUSIP
3622AW502
ISIN
US3622AW5029
EIN
82-4369909

Executives and directors

Officers and directors who filed ownership reports (Forms 3, 4, 5) in the last two years

NamePositionShares owned
Walter Marc HertzChief Executive Officer, Director385,510
Leanne KellyChief Financial Officer6,250
Vipin ChaturvediChief Scientific Officer172,189
Roelof RongenDirector–
David Charles BakerDirector7,843
David Leslie SzekeresDirector–
Camilla V. SimpsonDirector–

Employees

Headcount reported in annual reports

“As of January 30, 2026 we had four employees, of which three were full-time employees and one was part-time.”

Corporate history

Events identified from SEC filings

DateEventDetails
Jan 16, 2026Listing noticeNotice of delisting or failure to satisfy a listing rule (8-K Item 3.01)
Dec 2, 2025Listing noticeNotice of delisting or failure to satisfy a listing rule (8-K Item 3.01)
Apr 16, 2025Auditor changeChange in certifying accountant (8-K Item 4.01)
Mar 11, 2025Listing noticeNotice of delisting or failure to satisfy a listing rule (8-K Item 3.01)
Sep 11, 2024Listing noticeNotice of delisting or failure to satisfy a listing rule (8-K Item 3.01)
Jul 8, 2024Listing noticeNotice of delisting or failure to satisfy a listing rule (8-K Item 3.01)
May 22, 2024Listing noticeNotice of delisting or failure to satisfy a listing rule (8-K Item 3.01)
Jan 8, 2024Listing noticeNotice of delisting or failure to satisfy a listing rule (8-K Item 3.01)
Nov 24, 2023Listing noticeNotice of delisting or failure to satisfy a listing rule (8-K Item 3.01)
Aug 23, 2023Acquisition / saleCompletion of acquisition or disposition of assets (8-K Item 2.01)
Apr 21, 2023Name changeName changed from Vallon Pharmaceuticals, Inc. to GRI Bio, Inc.
Apr 21, 2023Auditor changeChange in certifying accountant (8-K Item 4.01)
Apr 21, 2023Acquisition / saleCompletion of acquisition or disposition of assets (8-K Item 2.01)
Mar 2, 2023Listing noticeNotice of delisting or failure to satisfy a listing rule (8-K Item 3.01)
Dec 29, 2022Listing noticeNotice of delisting or failure to satisfy a listing rule (8-K Item 3.01)
Dec 23, 2022MergerRegistration of securities for a merger or exchange offer (S-4)
Jun 28, 2022Listing noticeNotice of delisting or failure to satisfy a listing rule (8-K Item 3.01)
Feb 11, 2021IPOInitial public offering priced (424B4 prospectus)
Feb 8, 2021ListingRegistration of securities on an exchange (Form 8-A)