Summary
Latest filing:
James Brian Windsor is President and Chief Executive Officer of Rein Therapeutics, Inc. (RNTX). 3 SEC Form 4 filings on record going back to 2024, most recently on 13 May 2026. Most recent open-market trade: bought $25K of RNTX on 13 May 2026. Lifetime open-market purchases: $26K.
Recent Transactions
3Every recent SEC Form 4 transaction James Brian Windsor has reported, most recent first.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies James Brian Windsor files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- Voss Capital, LP - $551K of RNTX open-market activity in the last 12 months
- Rickenbach Josef H. von - $50K of RNTX 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 James Brian Windsor?
James Brian Windsor is a corporate insider, tracked as President and Chief Executive Officer of Rein Therapeutics, Inc. (RNTX). InsiderAlpha holds 3 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did James Brian Windsor last file a Form 4?
The most recent primary Form 4 on record is dated 13 May 2026, one of 3 filings going back to 2024.
Has James Brian Windsor been buying or selling stock?
Recorded transactions: 3 open-market purchases ($26K) and 0 open-market sales across all tracked filings.
How accurate is James Brian Windsor's historical track record?
Across 3 tracked purchases, James Brian Windsor averaged -21.0% avg 30-day return with a 0% 30-day win rate.
Where can I see all of James Brian Windsor'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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