Walter Marc Hertz - Apr 21, 2023 Form 4 Insider Report for GRI BIO, Inc. (GRI)

Role: Chief Executive Officer, Director, 10%+ Owner
Signature: /s/ Leanne Kelly, Attorney-in-Fact
Stock symbol: GRI
Transactions as of: Apr 21, 2023
Transactions value $: $0
Form type: 4
Date filed: 4/24/2023, 06:30 PM

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	GRI	Common Stock	Award		+386K			386K	Apr 21, 2023	Direct	F1

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Received in exchange for 10,307,793 shares of common stock of GRI Bio, Inc. ("GRI"), pursuant to the Agreement and Plan of Merger, dated December 13, 2022, by and among Vallon Pharmaceuticals, Inc. (the "Company"), Vallon Merger Sub, Inc. and GRI Bio, Inc. (the "Merger"). Per the terms of the Merger, each share of GRI common stock was converted into the right to receive 0.0374 shares of the Company's common stock. In connection with the Merger, the Company effected a reverse stock split of the Company's common stock at a ratio of 1-for-30 (the "Reverse Split"). Unless noted otherwise, all references to share amounts in this Form 4 reflect the Reverse Split.

Content

Received in exchange for 10,307,793 shares of common stock of GRI Bio, Inc. ("GRI"), pursuant to the Agreement and Plan of Merger, dated December 13, 2022, by and among Vallon Pharmaceuticals, Inc. (the "Company"), Vallon Merger Sub, Inc. and GRI Bio, Inc. (the "Merger"). Per the terms of the Merger, each share of GRI common stock was converted into the right to receive 0.0374 shares of the Company's common stock. In connection with the Merger, the Company effected a reverse stock split of the Company's common stock at a ratio of 1-for-30 (the "Reverse Split"). Unless noted otherwise, all references to share amounts in this Form 4 reflect the Reverse Split.