Quick Takeaways
- Walter Marc Hertz has 1 issuer position tracked on this page.
- Estimated disclosed ownership value: $88,956.
- Recent insider filing activity is available below.
Insider Trading & Ownership of Walter Marc Hertz
- Location
- La Jolla, CA
- Summary
- The estimated net worth of Walter Marc Hertz is at least $88,956 dollars as of 22 Sep 2025. Walter Marc Hertz is the Chief Executive Officer, Director of GRI Bio, Inc. and owns shares of GRI Bio, Inc. (GRI) stock worth about $89K.
- Signature
- /s/ Leanne Kelly, Attorney-in-Fact
- All Insider Reports
- All Insider Reports
Follow Filing Activity
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What Changed
- Largest disclosed position: GRI Bio, Inc. ($88,956).
- Past-year value change for that position: .
Why This Matters
- This page translates Forms 3/4/5 into a quick ownership context before you inspect each transaction row.
- You can cross-check role, issuer, and filing chronology directly against the SEC source.
Source Evidence
Filed on Form 4
See Original Filing
Insider ownership context is sourced from SEC Forms 3, 4, and 5.
Ownership of Walter Marc Hertz
| Symbol | Company | Relationship | Holdings Value | Past Year Net Change | Change % | Report Period |
|---|---|---|---|---|---|---|
| GRI | GRI Bio, Inc. | Chief Executive Officer, Director | $88,956 | 18 Sep 2025 |
Insider Transactions Reported by Walter Marc Hertz:
| Sym | Company | Class | Transaction | % | Value $ | * Price $ | Shares | Shares After | Date | Ownership |
|---|
* An asterisk sign (*) next to the price indicates that the price is likely invalid.