Summary
Updated Aug 31, 2026
LIGAND PHARMACEUTICALS INC files SEC Form 4 reports at Pelthos Therapeutics Inc. (PTHS). 3 SEC Form 4 filings on record, most recently on 19 December 2025.
Recent Transactions
1Every recent SEC Form 4 transaction LIGAND PHARMACEUTICALS INC has reported, most recent first.
Trading Pattern
InsiderAlpha's records for LIGAND PHARMACEUTICALS INC go back to 2025: 3 primary Form 4 filings, an average of 1.5 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 LIGAND PHARMACEUTICALS INC 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.
- Todd C. Davis - $1000K of PTHS open-market activity in the last 12 months
- Ezra M. Friedberg - $314K of PTHS open-market activity in the last 12 months
- Knuettel Francis II - $40K of PTHS open-market activity in the last 12 months
- Peter Greenleaf - $37K of PTHS open-market activity in the last 12 months
- Matthew Pauls - $37K of PTHS open-market activity in the last 12 months
- Richard Malamut - $12K of PTHS 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
What is LIGAND PHARMACEUTICALS INC?
LIGAND PHARMACEUTICALS INC is a corporate entity of Pelthos Therapeutics Inc. (PTHS). InsiderAlpha holds 3 primary Form 4 filings for it, the earliest from 2025, updated as new SEC EDGAR filings are processed.
When did LIGAND PHARMACEUTICALS INC last file a Form 4?
The most recent primary Form 4 on record is dated 19 December 2025, one of 3 filings going back to 2025.
Where can I see all of LIGAND PHARMACEUTICALS INC'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.
Learn More
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