GRI Insider Trading
GRI Bio, Inc. (GRI) operates in the Healthcare sector, specifically the Biotechnology industry, with a market capitalization near $188,647, listed on NASDAQ, employing roughly 3 people, carrying a beta of -1.22 to the broader market. GRI Bio, Inc. Led by W. Marc Hertz, public since 2023-04-24.
In the last 12 months, GRI Bio, Inc. insiders made 0 buy transactions and 0 sale transactions.
| Date | Name | Type | Shares | Price | Value |
|---|---|---|---|---|---|
| Sep 22, 2025 | Kelly Leanne | A-Award | 43,222 | $1.93 | $83.4K |
| Sep 22, 2025 | Szekeres David Leslie | A-Award | 39,897 | $1.93 | $77.0K |
| Sep 22, 2025 | Baker David Charles | A-Award | 23,605 | $1.93 | $45.6K |
| Sep 22, 2025 | SIMPSON CAMILLA V | A-Award | 23,605 | $1.93 | $45.6K |
| Sep 22, 2025 | Chaturvedi Vipin | A-Award | 43,222 | $1.93 | $83.4K |
| Sep 22, 2025 | Rongen Roelof | A-Award | 23,605 | $1.93 | $45.6K |
| Sep 22, 2025 | Hertz Walter Marc | A-Award | 103,067 | $1.93 | $198.9K |
| Aug 27, 2025 | Hertz Walter Marc | A-Award | 26,688 | $1.41 | $37.6K |
| Aug 27, 2025 | Szekeres David Leslie | A-Award | 10,276 | $1.41 | $14.5K |
| Aug 27, 2025 | Baker David Charles | A-Award | 5,994 | $1.41 | $8.5K |
How to Read GRI Insider Activity
Net insider activity is balanced over the trailing twelve months: 0 buys against 0 sales. Balanced activity typically reflects routine compensation-related vesting and tax-driven liquidity rather than directional information signals. The transaction table above includes the filer's reporting name, transaction type, share count, per-share price, and total dollar value where computable. For options traders, insider activity is one input to event-driven sizing alongside earnings calendar, analyst-rating cluster moves, and the implied-vol surface. Form 4 filings (the dominant Section 16 reporting form) must be submitted within two business days of the transaction; clusters of buys across multiple insiders within a short window are the strongest informational pattern. SEC EDGAR carries the underlying source filings for verification and additional historical depth.
Learn how insider trading is reported and how to read the data →
Frequently asked GRI insider trading questions
- How active are GRI insiders right now?
- Over the trailing twelve months, GRI Bio, Inc. (GRI) insiders made 0 buy transactions and 0 sale transactions. Net insider activity over the trailing twelve months is balanced (0 buys, 0 sales). The transaction list above shows the most recent filings; each entry includes the insider's name, transaction type, share count, and per-share price.
- What counts as an insider transaction?
- Section 16 of the Securities Exchange Act requires officers, directors, and 10% beneficial-owner shareholders to disclose changes in their holdings via Form 3 (initial statement), Form 4 (subsequent transactions, filed within two business days), and Form 5 (annual catch-up). Insider transactions cover open-market purchases and sales, exercise of stock options, gifts, and grants. The "transaction type" field on each row distinguishes these subcategories.
- Are GRI insider buys a bullish signal?
- Insider open-market purchases (Type P) carry more informational weight than insider sales: an insider must commit personal capital, and the SEC scrutinizes purchases under Rule 10b5-1 for material non-public information. Sales, by contrast, are often driven by liquidity, tax planning, or pre-scheduled 10b5-1 trading plans rather than negative information. Cluster buying (multiple insiders buying within a short window) is a stronger signal than isolated buys.
- How do GRI insider transactions affect options pricing?
- Insider transaction data does not directly drive implied volatility, but Form 4 disclosures can move single-name IV if the size or timing is unusual (e.g. a large CEO buy ahead of an earnings window). Options markets price the marginal informational content; routine transactions under pre-scheduled plans are typically ignored. For event-driven options sizing, pair the insider transaction history with the upcoming earnings calendar.