Summary
Updated Aug 31, 2026
David L. Grange is Director of Tonix Pharmaceuticals Holding Corp. (TNXP). 2 SEC Form 4 filings on record going back to 2025, most recently on 14 May 2026.
Trading Pattern
InsiderAlpha's records for David L. Grange go back to 2025: 2 primary Form 4 filings, an average of 1.0 per year. No transaction on record carries a Rule 10b5-1 flag - the filings look discretionary rather than pre-scheduled, which makes their timing more informative as a signal.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies David L. Grange 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.
- Seth Lederman - $345K of TNXP open-market activity in the last 12 months
- Richard Newcomb Stillwell - $58K of TNXP open-market activity in the last 12 months
- Carolyn E. Taylor - $15K of TNXP open-market activity in the last 12 months
- Richard H. Bagger - $13K of TNXP 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 David L. Grange?
David L. Grange is a corporate insider, tracked as Director of Tonix Pharmaceuticals Holding Corp. (TNXP). InsiderAlpha holds 2 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
When did David L. Grange last file a Form 4?
The most recent primary Form 4 on record is dated 14 May 2026, one of 2 filings going back to 2025.
Where can I see all of David L. Grange'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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