February 27, 2026 · Form 4 insider transaction
Imhoff John E bought 156,086 shares of GTHP at $0.07 per share, a transaction worth $10.9K. The trade was recorded as conversion of a derivative and disclosed on an SEC Form 4.
On February 26, 2026, Dr. Imhoff converted $10,926.03 outstanding under a September 25, 2025 Convertible Promissory Note into 156,086 shares of common stock at a conversion price of $0.07 per share. The amount converted consisted of $10,000 of principal and $926.03 of accrued interest. Following the reported conversion, $120,000 of principal remains outstanding under the convertible promissory note. Upon the occurrence of an event of default, the remaining balance is convertible into common stock at a variable conversion price determined in accordance with the terms of the note.