GRI Bio GRI Insider Ownership

NASDAQ GRI
$1.67 -0.06 (-3.47%)
At close: Aug 20, 2026 · 4:00 PM EDT

Historic Insider Ownership Trends

As of August 04, 2026, GRI Bio's top three insider holders are Walter Marc Hertz (Chief Executive Officer, 13.77K shares), Albert Agro (Chief Medical Officer, 6.15K shares), Vipin Chaturvedi (Chief Scientific Officer, 6.15K shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares (Direct) Shares (Indirect) Report Date
Albert Agro Chief Medical Officer 6,150 0 24 Apr, 2023
Marella Thorell - 340 0 14 Dec, 2022
Walter Marc Hertz Chief Executive Officer 13,768 0 24 Apr, 2023
Vipin Chaturvedi Chief Scientific Officer 6,150 0 24 Apr, 2023

* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
18 Sep, 2025 David Leslie Szekeres Stock Option (Right to Buy) A 39,897 $0.00 1,425 D A
18 Sep, 2025 Walter Marc Hertz Stock Option (Right to Buy) A 103,067 $0.00 3,681 D A
18 Sep, 2025 Walter Marc Hertz Stock Option (Right to Buy) A 103,067 $0.00 3,681 D A
18 Sep, 2025 Leanne Kelly Stock Option (Right to Buy) A 43,222 $0.00 1,544 D A
18 Sep, 2025 Roelof Rongen Stock Option (Right to Buy) A 23,605 $0.00 843 D A
18 Sep, 2025 Roelof Rongen Stock Option (Right to Buy) A 23,605 $0.00 843 D A
18 Sep, 2025 Walter Marc Hertz Stock Option (Right to Buy) A 103,067 $0.00 3,681 D A
18 Sep, 2025 Roelof Rongen Stock Option (Right to Buy) A 23,605 $0.00 843 D A
18 Sep, 2025 Vipin Chaturvedi Stock Option (Right to Buy) A 43,222 $0.00 1,544 D A
18 Sep, 2025 David Charles Baker Stock Option (Right to Buy) A 23,605 $0.00 843 D A
18 Sep, 2025 David Leslie Szekeres Stock Option (Right to Buy) A 39,897 $0.00 1,425 D A
18 Sep, 2025 David Leslie Szekeres Stock Option (Right to Buy) A 39,897 $0.00 1,425 D A
18 Sep, 2025 Camilla V Simpson Stock Option (Right to Buy) A 23,605 $0.00 843 D A
26 Aug, 2025 Roelof Rongen Stock Option (Right to Buy) A 5,994 $0.00 214 D A
26 Aug, 2025 David Leslie Szekeres Stock Option (Right to Buy) A 10,276 $0.00 367 D A
26 Aug, 2025 Walter Marc Hertz Stock Option (Right to Buy) A 26,688 $0.00 953 D A
26 Aug, 2025 David Leslie Szekeres Stock Option (Right to Buy) A 10,276 $0.00 367 D A
26 Aug, 2025 Roelof Rongen Stock Option (Right to Buy) A 5,994 $0.00 214 D A
26 Aug, 2025 Walter Marc Hertz Stock Option (Right to Buy) A 26,688 $0.00 953 D A
26 Aug, 2025 David Charles Baker Stock Option (Right to Buy) A 5,994 $0.00 214 D A