GTHP Insider Transactions
253 retained open-market purchase and sale rows from SEC Forms 3, 4 and 5, newest first. This page shows rows 1–100; provenance stays internal.
GTHP insiders transaction timeline
PurchaseSale
| Insider profile | Role | Date | Transaction | Shares | Price |
|---|---|---|---|---|---|
| Grujic Alan | Director | 2025-08-29 | Purchase | 152,108.0 | — |
| Imhoff John E | Director,TenPercentOwner | 2025-08-29 | Purchase | 166,667.0 | $0.18 |
| JAMES MICHAEL C | Director | 2025-08-29 | Purchase | 27,778.0 | $0.18 |
| Imhoff John E | Director,TenPercentOwner | 2025-03-18 | Purchase | 263,069.0 | $0.1 |
| Imhoff John E | Director,TenPercentOwner | 2025-03-18 | Purchase | 1,000,000.0 | $0.1 |
| Imhoff John E | Director,TenPercentOwner | 2025-03-18 | Purchase | 263,069.0 | $0.1 |
| Imhoff John E | Director,TenPercentOwner | 2025-03-18 | Purchase | 1,000,000.0 | $0.1 |
| JAMES MICHAEL C | Director | 2025-03-18 | Purchase | 262,945.0 | $0.1 |
| JAMES MICHAEL C | Director | 2025-03-18 | Purchase | 150,000.0 | $0.1 |
| Imhoff John E | Director,TenPercentOwner | 2025-03-13 | Purchase | 150.0 | — |
| Imhoff John E | Director,TenPercentOwner | 2025-03-07 | Purchase | 286.0 | — |
| Imhoff John E | Director,TenPercentOwner | 2025-03-07 | Purchase | 286.0 | — |
| Imhoff John E | Director,TenPercentOwner | 2024-12-18 | Purchase | 1,615,385.0 | — |
| Imhoff John E | Director,TenPercentOwner | 2024-09-23 | Purchase | 1,666,667.0 | — |
| Imhoff John E | Director,TenPercentOwner | 2023-08-11 | Purchase | 500,899.0 | — |
| Blumberg Richard P. | Director,TenPercentOwner | 2022-09-02 | Purchase | 1,000,000.0 | — |
| Imhoff John E | Director,TenPercentOwner | 2022-09-02 | Purchase | 500,000.0 | — |
| JAMES MICHAEL C | Director,TenPercentOwner | 2022-09-02 | Purchase | 100,000.0 | — |
| Cartwright Gene S | President & CEO | 2015-06-29 | Purchase | 37,504.0 | $0.12 |
| HART RONALD W | Director | 2015-06-29 | Purchase | 5,682.0 | — |
| Imhoff John E | Director,TenPercentOwner | 2015-06-29 | Purchase | 18,752.0 | — |
| HART RONALD W | Director | 2015-04-08 | Sale | 3,906.0 | $0.16 |
| HART RONALD W | Director | 2015-01-16 | Sale | 2,717.0 | $0.23 |
| Imhoff John E | Director,TenPercentOwner | 2014-11-26 | Purchase | 117,870.0 | $0.23 |
| HART RONALD W | Director | 2014-10-20 | Sale | 1,953.0 | $0.32 |
| HART RONALD W | Director | 2014-07-02 | Sale | 7,500.0 | $0.5 |
| Cartwright Gene S | PRESIDENT & CEO | 2014-06-20 | Purchase | 27,000.0 | $0.49 |
| Cartwright Gene S | PRESIDENT & CEO | 2014-06-19 | Purchase | 23,000.0 | $0.48 |
| Cartwright Gene S | PRESIDENT & CEO | 2014-06-18 | Purchase | 26,000.0 | $0.49 |
| Cartwright Gene S | Chief Executive Officer | 2014-06-17 | Purchase | 24,000.0 | $0.49 |
| HART RONALD W | Director | 2014-06-02 | Sale | 12,500.0 | $0.5 |
| HART RONALD W | Director | 2014-05-29 | Sale | 12,500.0 | $0.5 |
| JAMES MICHAEL C | Director | 2011-01-26 | Sale | 6,000.0 | $0.96 |
| JAMES MICHAEL C | Director | 2011-01-25 | Sale | 4,000.0 | $1.0 |
| JAMES MICHAEL C | Director | 2011-01-24 | Sale | 2,500.0 | $0.97 |
| JAMES MICHAEL C | Director | 2011-01-18 | Sale | 12,500.0 | $1.0 |
| JAMES MICHAEL C | Director | 2010-12-20 | Sale | 12,500.0 | $0.8 |
| JAMES MICHAEL C | Director | 2010-12-15 | Sale | 19,000.0 | $0.79 |
| JAMES MICHAEL C | Director | 2010-12-14 | Sale | 5,115.0 | $0.82 |
| JAMES MICHAEL C | Director | 2010-12-01 | Sale | 2,500.0 | $0.82 |
| JAMES MICHAEL C | Director | 2010-11-30 | Sale | 12,500.0 | $0.82 |
| JAMES MICHAEL C | Director | 2010-11-29 | Sale | 22,253.0 | $0.81 |
| JAMES MICHAEL C | Director | 2010-11-18 | Sale | 20,000.0 | $0.81 |
| JAMES MICHAEL C | Director | 2010-11-17 | Sale | 20,000.0 | $0.8 |
| JAMES MICHAEL C | Director | 2010-11-16 | Sale | 25,000.0 | $0.8 |
| Imhoff John E | Director,TenPercentOwner | 2009-07-29 | Purchase | 581,329.0 | $0.2 |
| Imhoff John E | Director,TenPercentOwner | 2009-05-28 | Purchase | 1,872,838.0 | $0.35 |
| PAVLICEK WALTER J | VP of Operations | 2006-05-04 | Purchase | 2,893.0 | $0.22 |
| Noorani Siraj N | Chief Accounting Officer | 2006-05-04 | Purchase | 2,553.0 | $0.22 |
| PROMED MANAGEMENT INC | Other | 2006-03-09 | Sale | 16,000.0 | $0.24 |
| Musket David B | TenPercentOwner | 2006-03-09 | Sale | 16,000.0 | $0.24 |
| PROMED ASSET MANAGEMENT, LLC | Other | 2006-03-09 | Sale | 16,000.0 | $0.24 |
| KUROKAWA BARRY | Other | 2006-03-09 | Sale | 16,000.0 | $0.24 |
| PROMED MANAGEMENT INC | Other | 2006-03-09 | Sale | 94,920.0 | $0.24 |
| Musket David B | TenPercentOwner | 2006-03-09 | Sale | 94,920.0 | $0.24 |
| PROMED ASSET MANAGEMENT, LLC | Other | 2006-03-09 | Sale | 94,920.0 | $0.24 |
| KUROKAWA BARRY | Other | 2006-03-09 | Sale | 94,920.0 | $0.24 |
| PROMED MANAGEMENT INC | Other | 2006-03-08 | Sale | 7,200.0 | $0.21 |
| Musket David B | TenPercentOwner | 2006-03-08 | Sale | 7,200.0 | $0.21 |
| PROMED ASSET MANAGEMENT, LLC | Other | 2006-03-08 | Sale | 7,200.0 | $0.21 |
| KUROKAWA BARRY | Other | 2006-03-08 | Sale | 7,200.0 | $0.21 |
| PROMED MANAGEMENT INC | Other | 2006-03-08 | Sale | 42,800.0 | $0.21 |
| Musket David B | TenPercentOwner | 2006-03-08 | Sale | 42,800.0 | $0.21 |
| PROMED ASSET MANAGEMENT, LLC | Other | 2006-03-08 | Sale | 42,800.0 | $0.21 |
| KUROKAWA BARRY | Other | 2006-03-08 | Sale | 42,800.0 | $0.21 |
| PROMED MANAGEMENT INC | Other | 2006-03-07 | Sale | 400.0 | $0.21 |
| Musket David B | TenPercentOwner | 2006-03-07 | Sale | 400.0 | $0.21 |
| PROMED ASSET MANAGEMENT, LLC | Other | 2006-03-07 | Sale | 400.0 | $0.21 |
| KUROKAWA BARRY | Other | 2006-03-07 | Sale | 400.0 | $0.21 |
| PROMED MANAGEMENT INC | Other | 2006-03-07 | Sale | 2,300.0 | $0.21 |
| Musket David B | TenPercentOwner | 2006-03-07 | Sale | 2,300.0 | $0.21 |
| PROMED ASSET MANAGEMENT, LLC | Other | 2006-03-07 | Sale | 2,300.0 | $0.21 |
| KUROKAWA BARRY | Other | 2006-03-07 | Sale | 2,300.0 | $0.21 |
| PROMED MANAGEMENT INC | Other | 2006-03-03 | Sale | 3,400.0 | $0.22 |
| Musket David B | TenPercentOwner | 2006-03-03 | Sale | 3,400.0 | $0.22 |
| PROMED ASSET MANAGEMENT, LLC | Other | 2006-03-03 | Sale | 3,400.0 | $0.22 |
| KUROKAWA BARRY | Other | 2006-03-03 | Sale | 3,400.0 | $0.22 |
| PROMED MANAGEMENT INC | Other | 2006-03-03 | Sale | 20,180.0 | $0.22 |
| Musket David B | TenPercentOwner | 2006-03-03 | Sale | 20,180.0 | $0.22 |
| PROMED ASSET MANAGEMENT, LLC | Other | 2006-03-03 | Sale | 20,180.0 | $0.22 |
| KUROKAWA BARRY | Other | 2006-03-03 | Sale | 20,180.0 | $0.22 |
| PROMED MANAGEMENT INC | Other | 2006-02-28 | Sale | 400.0 | $0.22 |
| Musket David B | TenPercentOwner | 2006-02-28 | Sale | 400.0 | $0.22 |
| PROMED ASSET MANAGEMENT, LLC | Other | 2006-02-28 | Sale | 400.0 | $0.22 |
| KUROKAWA BARRY | Other | 2006-02-28 | Sale | 400.0 | $0.22 |
| PROMED MANAGEMENT INC | Other | 2006-02-28 | Sale | 9,600.0 | $0.22 |
| Musket David B | TenPercentOwner | 2006-02-28 | Sale | 9,600.0 | $0.22 |
| PROMED ASSET MANAGEMENT, LLC | Other | 2006-02-28 | Sale | 9,600.0 | $0.22 |
| KUROKAWA BARRY | Other | 2006-02-28 | Sale | 9,600.0 | $0.22 |
| PROMED MANAGEMENT INC | Other | 2006-02-27 | Sale | 3,000.0 | $0.23 |
| Musket David B | TenPercentOwner | 2006-02-27 | Sale | 3,000.0 | $0.23 |
| PROMED ASSET MANAGEMENT, LLC | Other | 2006-02-27 | Sale | 3,000.0 | $0.23 |
| KUROKAWA BARRY | Other | 2006-02-27 | Sale | 3,000.0 | $0.23 |
| PROMED MANAGEMENT INC | Other | 2006-02-27 | Sale | 17,700.0 | $0.23 |
| Musket David B | TenPercentOwner | 2006-02-27 | Sale | 17,700.0 | $0.23 |
| PROMED ASSET MANAGEMENT, LLC | Other | 2006-02-27 | Sale | 17,700.0 | $0.23 |
| KUROKAWA BARRY | Other | 2006-02-27 | Sale | 17,700.0 | $0.23 |
| PROMED MANAGEMENT INC | Other | 2006-02-23 | Sale | 11,050.0 | $0.29 |
| Musket David B | TenPercentOwner | 2006-02-23 | Sale | 11,050.0 | $0.29 |
| PROMED ASSET MANAGEMENT, LLC | Other | 2006-02-23 | Sale | 11,050.0 | $0.29 |