Summary
Updated Aug 30, 2026
Jonas Grossman is Director, 10% Owner of Rainier Acquisition Corp (RNAQ). 1 SEC Form 4 filing on record, dated 28 August 2026. Most recent open-market trade: bought $1.94M of RNAQ on 28 August 2026. Lifetime open-market purchases: $2.43M.
Recent Transactions
1Every recent SEC Form 4 transaction Jonas Grossman has reported, most recent first.
Most Active Insiders Right Now
Jonas Grossman has no co-filers on record, so these are insiders with the largest open-market activity across the market in the last 90 days.
- Bruce Booth - $91.81M of KYMR open-market activity in the last 90 days
- DM Trust Aggregator, LLC - $88.83M of BROS open-market activity in the last 90 days
- SUMMIT PARTNERS L P - $88.55M of KVYO open-market activity in the last 90 days
- Ronald Clarke - $88.51M of CPAY open-market activity in the last 90 days
- Yousif Mohammed Ali Nasser Al-Nowais - $88.47M of NESR open-market activity in the last 90 days
- Thomas J. Nimbley - $87.92M of PBF open-market activity in the last 90 days
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Frequently Asked Questions
Who is Jonas Grossman?
Jonas Grossman is a corporate insider, tracked as Director, 10% Owner of Rainier Acquisition Corp (RNAQ). InsiderAlpha holds 1 primary Form 4 filing for them, the earliest from 2026, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has Jonas Grossman submitted recently?
1 primary Form 4 filing in the last 90 days, covering 1 company.
Has Jonas Grossman been buying or selling stock?
Recorded transactions: 2 open-market purchases ($2.43M) and 0 open-market sales across all tracked filings.
Where can I see all of Jonas Grossman'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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