Summary
Latest filing:
Roelof Rongen is Director of GRI Bio, Inc. (GRI). 3 SEC Form 4 filings on record, most recently on 18 September 2025.
Trading Pattern
InsiderAlpha's records for Roelof Rongen go back to 2025: 3 primary Form 4 filings, an average of 1.5 per year. No recorded transaction carries a Rule 10b5-1 plan flag. An absent flag does not establish whether a transaction was pre-arranged or discretionary.
Other Insiders Active in the Same Sector
No other insider has filed at Roelof Rongen's companies, so these are insiders reporting open-market trades at other companies in the same sector.
- RA CAPITAL MANAGEMENT, L.P. - $54.63M of WVE open-market activity in the last 12 months
- Mark A. Goldsmith - $54.20M of RVMD open-market activity in the last 12 months
- Robert W. Duggan - $51.95M of SMMT open-market activity in the last 12 months
- Mahkam Zanganeh - $51.95M of SMMT open-market activity in the last 12 months
- ORBIMED ADVISORS LLC - $51.68M of ELVN open-market activity in the last 12 months
- Daniel Patrick O'Day - $50.09M of GILD open-market activity in the last 12 months
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Frequently Asked Questions
Who is Roelof Rongen?
Roelof Rongen is a corporate insider, tracked as Director of GRI Bio, Inc. (GRI). InsiderAlpha holds 3 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
When did Roelof Rongen last file a Form 4?
The most recent primary Form 4 on record is dated 18 September 2025, one of 3 filings going back to 2025.
Where can I see all of Roelof Rongen's SEC filings?
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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