Imhoff John E
Insider transactions at 1 company
This page shows all SEC Form 4 filings attributed to Imhoff John E. Form 4 disclosures are required whenever a corporate insider — director, officer, or 10%+ shareholder — buys, sells, or receives company stock. Each row represents a separate reported transaction. All data is sourced directly from the SEC EDGAR public database.
| Company | Title | Type | Shares | Price | Value | Date |
|---|---|---|---|---|---|---|
| GTHP | Other | 300 | — | — | Aug 21, 2025 | |
| GTHP | Other | 4,801,500 | $0.50 | $2,400,750 | Mar 18, 2025 | |
| GTHP | Other | 4,801,500 | $0.50 | $2,400,750 | Mar 6, 2025 | |
| GTHP | Other | 35,312 | — | — | Jan 17, 2025 | |
| GTHP | Purchase | 1,615,385 | — | — | Dec 18, 2024 | |
| GTHP | Other | 36,161 | — | — | Oct 15, 2024 | |
| GTHP | Purchase | 1,666,667 | — | — | Sep 23, 2024 | |
| GTHP | Other | 183,008 | — | — | Aug 21, 2024 | |
| GTHP | Other | 48,327 | — | — | Jul 15, 2024 | |
| GTHP | Other | 4,420 | — | — | Apr 5, 2024 | |
| GTHP | Other | 37,324 | — | — | Oct 16, 2023 | |
| GTHP | Purchase | 500,899 | — | — | Aug 21, 2023 | |
| GTHP | Other | 22,393 | — | — | Apr 18, 2023 | |
| GTHP | Purchase | 500,000 | — | — | Sep 2, 2022 | |
| GTHP | Award / Grant | 113,636 | — | — | Jun 29, 2015 | |
| GTHP | Award / Grant | 78,125 | $0.16 | $12,500 | Apr 8, 2015 | |
| GTHP | Award / Grant | 54,348 | $0.23 | $12,500 | Jan 16, 2015 | |
| GTHP | Purchase | 117,870 | $0.23 | $27,110 | Nov 26, 2014 | |
| GTHP | Award / Grant | 39,063 | $0.32 | $12,500 | Oct 20, 2014 | |
| GTHP | Award / Grant | 152,174 | $0.46 | $70,000 | Aug 14, 2014 | |
| GTHP | Option Exercise | 1,466,420 | $0.40 | $586,568 | Nov 27, 2013 | |
| GTHP | Option Exercise | 128,221 | $0.65 | $83,344 | Jul 26, 2013 | |
| GTHP | Award / Grant | 78,750 | — | — | Mar 28, 2013 | |
| GTHP | Option Exercise | 1,594,641 | $0.40 | $637,856 | Jul 16, 2012 | |
| GTHP | Option Exercise | 32,500 | — | — | Nov 3, 2011 | |
| GTHP | Award / Grant | 22,500 | — | — | May 28, 2009 |