The public view is the crawlable proof. The same sourced dataset is available through REST and MCP for agents, research scripts, and back-office tools.
| Date | Insider | Role | Action | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Jul 2, 2026 | Friedberg Ezra M | Director | Sell(S) | 534 | $26.03 | $14K |
| Jul 2, 2026 | Friedberg Ezra M | Director | Sell(S) | 24 | $27.33 | $656 |
| Jul 2, 2026 | Pauls Matthew | Director | Sell(S) | 692 | $26.00 | $18K |
| Jul 2, 2026 | Pauls Matthew | Director | Sell(S) | 94 | $27.36 | $3K |
| Jul 2, 2026 | Greenleaf Peter | Director | Sell(S) | 712 | $26.00 | $19K |
| Jul 2, 2026 | Greenleaf Peter | Director | Sell(S) | 85 | $27.27 | $2K |
| Jun 15, 2026 | Friedberg Ezra M | Director | Sell(S) | 224 | $27.12 | $6K |
| Jun 15, 2026 | Friedberg Ezra M | Director | Sell(S) | 59 | $27.94 | $2K |
| Jun 11, 2026 | Davis Todd C | Director | Buy(P) | 35K | $27.80 | $986K |
| Jun 11, 2026 | Davis Todd C | Director | Buy(P) | 503 | $28.73 | $14K |
| May 22, 2026 | Francis Knuettel II | CFO, Treas & Secty | Disposed to issuer(D) | 14K | — | $0 |
| May 22, 2026 | Francis Knuettel II | CFO, Treas & Secty | Sell(S) | 2K | $26.84 | $40K |
| May 22, 2026 | Francis Knuettel II | CFO, Treas & Secty | Grant(A) | 60K | — | — |
| May 22, 2026 | Francis Knuettel II | CFO, Treas & Secty | Disposed to issuer(D) | 43K | — | — |
| May 14, 2026 | Friedberg Ezra M | Director | Tax withholding(F) | 144 | $27.01 | $4K |
| Apr 2, 2026 | Malamut Richard | Director | Sell(S) | 310 | $20.51 | $6K |
| Apr 2, 2026 | Malamut Richard | Director | Sell(S) | 280 | $21.36 | $6K |
| Apr 2, 2026 | Greenleaf Peter | Director | Sell(S) | 420 | $20.52 | $9K |
| Apr 2, 2026 | Greenleaf Peter | Director | Sell(S) | 377 | $21.36 | $8K |
| Apr 2, 2026 | Friedberg Ezra M | Director | Sell(S) | 293 | $20.51 | $6K |
| Apr 2, 2026 | Friedberg Ezra M | Director | Sell(S) | 265 | $21.36 | $6K |
| Apr 2, 2026 | Pauls Matthew | Director | Sell(S) | 415 | $20.52 | $9K |
| Apr 2, 2026 | Pauls Matthew | Director | Sell(S) | 371 | $21.36 | $8K |
| Dec 23, 2025 | Einhorn Andrew J. | Director | Grant(A) | 12K | — | — |
| Dec 17, 2025 | Ligand Pharmaceuticals Inc | Director, 10% Owner | Disposed to issuer(D) | 0 | — | — |
| Dec 17, 2025 | Ligand Pharmaceuticals Inc | Director, 10% Owner | Grant(A) | 0 | — | — |
| Dec 10, 2025 | Pauls Matthew | Director | Gift(G) | 10K | — | $0 |
| Nov 25, 2025 | Friedberg Ezra M | Director | Sell(S) | 6K | $28.00 | $168K |
| Nov 25, 2025 | Friedberg Ezra M | Director | Sell(S) | 2K | $28.01 | $56K |
| Nov 25, 2025 | Friedberg Ezra M | Director | Sell(S) | 1 | $28.50 | $29 |
| Nov 25, 2025 | Friedberg Ezra M | Director | Sell(S) | 2K | $28.14 | $56K |
| Nov 13, 2025 | Malamut Richard | Director | Grant(A) | 2K | — | $0 |
| Nov 6, 2025 | Ligand Pharmaceuticals Inc | Director, 10% Owner | Grant(A) | 0 | $9,000,000.00as filed | — |
| Oct 2, 2025 | Pauls Matthew | Director | Option exercise(M) | 2K | — | $0 |
| Oct 2, 2025 | Pauls Matthew | Director | Option exercise(M) | 2K | — | $0 |
| Jul 2, 2025 | Pauls Matthew | Director | Option exercise(M) | 8K | — | $0 |
| Jul 2, 2025 | Pauls Matthew | Director | Option exercise(M) | 8K | — | $0 |
| Jul 2, 2025 | Baxter Richard B | Director | Grant(A) | 19K | — | $0 |
| Jul 2, 2025 | Pauls Matthew | Director | Grant(A) | 25K | — | $0 |
| Jul 2, 2025 | Davis Todd C | Director | Grant(A) | 19K | — | $0 |
| Jul 2, 2025 | Francis Knuettel II | CFO, Treas & Secty | Grant(A) | 33K | — | $0 |
| Jul 2, 2025 | Plesha Scott M. | CEO and President, Director | Grant(A) | 84K | — | $0 |
| Jul 2, 2025 | Friedberg Ezra M | Director | Grant(A) | 19K | — | $0 |
| Jul 2, 2025 | Greenleaf Peter | Director | Grant(A) | 25K | — | $0 |
| Jul 2, 2025 | Malamut Richard | Director | Grant(A) | 19K | — | $0 |
| Jul 2, 2025 | Rangarao Sai | Chief Commercial Officer | Grant(A) | 31K | — | $0 |
| Jul 1, 2025 | Ligand Pharmaceuticals Inc | 10% Owner | Conversion(C) | 1.5M | $10.00 | $15.0M |
| Jul 1, 2025 | Ligand Pharmaceuticals Inc | 10% Owner | Other(J) | 31K | — | — |
| Jul 1, 2025 | Ligand Pharmaceuticals Inc | 10% Owner | Conversion(C) | 15K | — | $0 |
| Jul 1, 2025 | Davis Todd C | Director, 10% Owner | Conversion(C) | 1.5M | $10.00 | $15.0M |
| Jul 1, 2025 | Davis Todd C | Director, 10% Owner | Conversion(C) | 15K | — | $0 |
| Jul 1, 2025 | Davis Todd C | Director, 10% Owner | Other(J) | 31K | — | — |
| Jul 1, 2025 | Francis Knuettel II | Chief Financial Officer | Conversion(C) | 10K | $10.00 | $100K |
| Jul 1, 2025 | Francis Knuettel II | Chief Financial Officer | Conversion(C) | 10K | — | $0 |
| Jul 1, 2025 | Francis Knuettel II | Chief Financial Officer | Other(J) | 10K | — | $0 |
| Jul 1, 2025 | Friedberg Ezra M | Director | Conversion(C) | 40K | $10.00 | $400K |
| Jul 1, 2025 | Friedberg Ezra M | Director | Conversion(C) | 40K | $10.00 | $400K |
| Jul 1, 2025 | Friedberg Ezra M | Director | Buy(P) | 40K | — | $0 |
| Jul 1, 2025 | Friedberg Ezra M | Director | Buy(P) | 40K | — | $0 |
| Jul 1, 2025 | Friedberg Ezra M | Director | Conversion(C) | 40K | — | $0 |
| Jul 1, 2025 | Friedberg Ezra M | Director | Conversion(C) | 40K | — | $0 |
| Nov 13, 2024 | Davis Todd C | Director | Grant(A) | 5K | — | $0 |
| Nov 13, 2024 | Friedberg Ezra M | Director | Grant(A) | 2K | — | $0 |
| Jun 14, 2024 | Davis Todd C | Director | Grant(A) | 13K | — | $0 |
| Jun 14, 2024 | Friedberg Ezra M | Director | Grant(A) | 6K | — | $0 |
| Jun 14, 2024 | Malamut Richard | Director | Grant(A) | 6K | — | $0 |
Insider transactions sourced from SEC EDGAR Form 4 filings, normalized within minutes of acceptance. "Buy"/"Sell" mark open-market transactions (codes P/S), the tradeable signal. Awards, option exercises and tax-withholding are shown with their raw code. All data is public domain.
Coverage: Form 4 filings indexed 2009-03-30 → 2026-08-15. Earlier history is backfilling; this window widens as it deepens.
Programmatic access via the Arkolith API & MCP server (insider.transactions, insider.company).
Connected pages for PTHS