X0609 4 2026-02-25-05:00 false 0000924515 GUIDED THERAPEUTICS INC GTHP 0001486345 Blumberg Richard P. false 5835 PEACHTREE CORNERS EAST SUITE B PEACHTREE CORNERS GA 30092 true false true false false Common Stock 2026-02-25-05:00 4 M false 1000000 A 8924180 D Common Stock 2026-03-26-05:00 4 J false 56093 A 8980273 D Preferred Series F Stock 2026-03-26-05:00 4 J false 260 D 0 D Common Stock 2026-03-26-05:00 4 J false 1040000 A 10020273 D Common Stock 2026-03-26-05:00 4 J false 19038 A 10039311 D Preferred Series F-2 Stock 2026-03-26-05:00 4 J false 88 D 0 D Common Stock 2026-03-26-05:00 4 J false 352000 A 10391311 D Warrants 0.65 2026-02-25-05:00 4 D false 1000000 D 2022-09-01 2026-09-01 Common Stock 1000000 0 D Warrants 0.65 2026-02-25-05:00 4 A false 1000000 A 2026-02-25 2027-09-01 Common Stock 1000000 1000000 D Warrants 0.50 2026-02-25-05:00 4 D false 1000000 D 2022-09-01 2026-09-01 Common Stock 1000000 0 D Warrants 0.20 2026-02-25-05:00 4 A false 1000000 A 2026-02-25 2026-02-25 Common Stock 1000000 1000000 D Warrants 0.20 2026-02-25-05:00 4 M false 1000000 0.20 D 2026-02-25 2026-02-25 Common Stock 1000000 0 D Warrants 0.30 2026-03-01-05:00 4 H false 900000 0.30 D 2023-03-01 2026-03-01 Common Stock 900000 2700000 D Stock Options 0.29 2026-03-10-05:00 4 A false 110000 0.00 A 2036-03-09 Common Stock 110000 110000 D During February 2026, Mr. Blumberg entered into an exchange agreement pursuant to which 1,000,000 warrants to purchase shares of common stock with an exercise price of $0.50 were exchanged for 1,000,000 warrants with an exercise price of $0.20. The newly issued warrants were immediately exercised upon payment of $200,000. In connection with the exchange agreement, the expiration date of 1,000,000 warrants with an exercise price of $0.65 was extended for one year, until September 1, 2027. 900,000 warrants to purchase shares of common stock with an exercise price of $0.30, with an issuance date of March 1, 2023, expired on March 1, 2026, without being exercised. One-fourth of the shares subject to the award vested on March 10, 2026; the remaining shares will vest monthly, starting on June 10, 2026, subject to the reporting person's continued service on each such date, until the award is fully vested on March 10, 2029. These shares were issued for payment of accrued dividends on the reporting individual's Series F preferred stock, at a conversion price of $0.2773. On March 26, 2026, Mr. Blumberg converted 260 shares of Series F preferred stock into 1,040,000 shares of common stock. The Series F preferred stock had a stated value of $1,000 and $0.25 conversion price. These shares were issued for payment of accrued dividends on the reporting individual's Series F-2 preferred stock, at a conversion price of $0.2773. On March 26, 2026, Mr. Blumberg converted 88 shares of Series F-2 preferred stock into 352,000 shares of common stock. The Series F-2 preferred stock had a stated value of $1,000 and $0.25 conversion price. /s/ Richard P. Blumberg 2026-05-05