Insider Transactions Reported by 14 Insiders of GRI Bio, Inc.

Symbol: GRI on Nasdaq
Location: La Jolla, CA

Quick Takeaways

GRI - GRI Bio, Inc. has 14 insiders with reported activity on this page.
No net insider buy/sell flow is currently reported for the last year.
Recent transaction rows are available for direct filing-level review.

What Changed

No meaningful buy/sell imbalance is currently visible in the one-year window.
Activity will update as new Forms 3/4/5 are filed.

Why This Matters

This page gives a plain-language issuer insider context before you inspect transaction-level evidence.
Use the filing links below to verify timestamps, codes, and ownership impacts directly from SEC forms.

Official SEC Source

Filed on Form 4

Issuer insider activity is sourced from SEC Forms 3, 4, and 5.

See Original Filing

Insider trading overview

Last 12 months

Insider buy and sell flow is broadly balanced over the last 12 months. No Buy or Sell transactions have been reported since 08 Apr 2025.

Buys

Shares: 0

Insiders: 0

Sells

Shares: 0

Insiders: 0

Net

Shares: 0

Insiders: 0

Window (months)	Buy $	Sell $	Net $
0-3	$0	$0	$0
3-6	$0	$0	$0
6-9	$0	$0	$0
9-12	$0	$0	$0

GRI Bio, Inc. executives and other stock owners filed with the SEC include:

Name	Relationship	Holdings Value	Valuation	Report Date
Albert Agro	Chief Medical Officer	$702,531	Mixed	21 Apr 2023
Walter Marc Hertz	Chief Executive Officer, Director	$88,956	Mixed	18 Sep 2025
Marella Thorell	Director	$38,784	Mixed	13 Dec 2022
David Leslie Szekeres	Director	$35,613	Mixed	18 Sep 2025
Vipin Chaturvedi	Chief Scientific Officer	$29,704	Mixed	18 Sep 2025
Leanne Kelly	Chief Financial Officer	$29,704	Mixed	18 Sep 2025
Roelof Rongen	Director	$20,775	Mixed	18 Sep 2025
Camilla Simpson V	Director	$20,775	Mixed	18 Sep 2025
David Charles Baker	Director	$20,775	Mixed	18 Sep 2025
Ofir Levi	Director	$20,571	Mixed	14 May 2021
Penny Toren	SVP, Regul Affairs & Prog Mgmt	$17,143	Mixed	14 May 2021
Meenu Chhabra	Director	$10,286	Mixed	23 Feb 2022
Richard Ammer	Director	$5,143	Mixed	09 Jun 2022
Joseph E. Payne	Director	$5,143	Mixed	09 Jun 2022

Top shareholders of GRI Bio, Inc. (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.

Methodology: rows are grouped by holder and ranked by the holder's primary source value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Holder	Source	Role / Reporting	Ownership %	Shares	Holdings Value	12M Net Δ	As of	Details
Albert Agro	3/4/5	Chief Medical Officer	— class O/S missing	172,189	$702,531	—	21 Apr 2023	3/4/5
INTRACOASTAL CAPITAL, LLC	13D/G	Mitchell P. Kopin	10%	1,097,858	$241,529	+$92,484	31 Dec 2025	13D/G
Walter Marc Hertz	3/4/5	Chief Executive Officer, Director	— class O/S missing	103,067	$88,956	—	18 Sep 2025	3/4/5
Marella Thorell	3/4/5	Director	— class O/S missing	9,506	$38,784	—	13 Dec 2022	3/4/5
David Leslie Szekeres	3/4/5	Director	— class O/S missing	39,897	$35,613	—	18 Sep 2025	3/4/5
Leanne Kelly	3/4/5	Chief Financial Officer	— class O/S missing	43,222	$29,704	—	18 Sep 2025	3/4/5
Vipin Chaturvedi	3/4/5	Chief Scientific Officer	— class O/S missing	43,222	$29,704	—	18 Sep 2025	3/4/5
Camilla Simpson V	3/4/5	Director	— class O/S missing	23,605	$20,775	—	18 Sep 2025	3/4/5
David Charles Baker	3/4/5	Director	— class O/S missing	23,605	$20,775	—	18 Sep 2025	3/4/5
Roelof Rongen	3/4/5	Director	— class O/S missing	23,605	$20,775	—	18 Sep 2025	3/4/5
Ofir Levi	3/4/5	Director	— class O/S missing	30,000	$20,571	—	14 May 2021	3/4/5
Penny Toren	3/4/5	SVP, Regul Affairs & Prog Mgmt	— class O/S missing	25,000	$17,143	—	14 May 2021	3/4/5
Meenu Chhabra	3/4/5	Director	— class O/S missing	15,000	$10,286	—	23 Feb 2022	3/4/5
GEODE CAPITAL MANAGEMENT, LLC	13F	Company	0.21%	23,185	$5,721	—	31 Dec 2025	13F
Joseph E. Payne	3/4/5	Director	— class O/S missing	7,500	$5,143	—	09 Jun 2022	3/4/5
Richard Ammer	3/4/5	Director	— class O/S missing	7,500	$5,143	—	09 Jun 2022	3/4/5
VANGUARD GROUP INC	13F	Company	0.15%	17,000	$4,199	—	31 Dec 2025	13F
StoneX Group Inc.	13F	Company	0.15%	16,253	$4,011	—	31 Dec 2025	13F
Tower Research Capital LLC (TRC)	13F	Company	0.03%	2,854	$704	—	31 Dec 2025	13F
BlackRock, Inc.	13F	Company	0%	211	$52	—	31 Dec 2025	13F
SBI Securities Co., Ltd.	13F	Company	— class O/S missing	117	$29	—	31 Dec 2025	13F
BANK OF AMERICA CORP /DE/	13F	Company	0%	21	$5	—	31 Dec 2025	13F

Recent Insider Transactions by Companies or Individuals for GRI Bio, Inc.

Showing up to 300 most recent insider transactions from the last 12 months.

Insider	Symbol	Class	Transaction	Shares	Shares Owned	Date	Ownership
Leanne Kelly	GRI	Stock Option (Right to Buy)	Award	43,222	43,222	18 Sep 2025	Direct
David Leslie Szekeres	GRI	Stock Option (Right to Buy)	Award	39,897	39,897	18 Sep 2025	Direct
David Charles Baker	GRI	Stock Option (Right to Buy)	Award	23,605	23,605	18 Sep 2025	Direct
Camilla Simpson V	GRI	Stock Option (Right to Buy)	Award	23,605	23,605	18 Sep 2025	Direct
Vipin Chaturvedi	GRI	Stock Option (Right to Buy)	Award	43,222	43,222	18 Sep 2025	Direct
Walter Marc Hertz	GRI	Stock Option (Right to Buy)	Award	103,067	103,067	18 Sep 2025	Direct
Roelof Rongen	GRI	Stock Option (Right to Buy)	Award	23,605	23,605	18 Sep 2025	Direct
Walter Marc Hertz	GRI	Stock Option (Right to Buy)	Award	26,688	26,688	26 Aug 2025	Direct
David Leslie Szekeres	GRI	Stock Option (Right to Buy)	Award	10,276	10,276	26 Aug 2025	Direct
David Charles Baker	GRI	Stock Option (Right to Buy)	Award	5,994	5,994	26 Aug 2025	Direct
Roelof Rongen	GRI	Stock Option (Right to Buy)	Award	5,994	5,994	26 Aug 2025	Direct
Vipin Chaturvedi	GRI	Stock Option (Right to Buy)	Award	11,854	11,854	26 Aug 2025	Direct
Camilla Simpson V	GRI	Stock Option (Right to Buy)	Award	5,994	5,994	26 Aug 2025	Direct
Leanne Kelly	GRI	Stock Option (Right to Buy)	Award	11,854	11,854	26 Aug 2025	Direct
Camilla Simpson V	GRI	Stock Option (Right to Buy)	Award	4,527	4,527	13 Aug 2025	Direct
David Charles Baker	GRI	Stock Option (Right to Buy)	Award	4,527	4,527	13 Aug 2025	Direct
Roelof Rongen	GRI	Stock Option (Right to Buy)	Award	4,527	4,527	13 Aug 2025	Direct
David Leslie Szekeres	GRI	Stock Option (Right to Buy)	Award	7,545	7,545	13 Aug 2025	Direct

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