Guided Therapeutics Inc. (GTHP)
Guided Therapeutics Inc. (GTHP) Insider Trading
Directors, officers and holders of more than 10% of GTHP report their trades in its stock on SEC Form 4, within two business days. Each row below is one Form 4 transaction line. The one-letter code says what kind of transaction it was: only P (purchase) and S (sale) are open-market or private trades; awards, option exercises, tax withholding and gifts carry other codes.
Recent Form 4 transactions
The 50 most recent of 99 transactions on file: 5 with code P, 0 with code S and 45 with other codes.
| Date | Insider | Title | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Sep 30, 2026 | Imhoff John E | Director | C Conversion | 1,650,215 | Not measured | Not measured |
| Sep 30, 2026 | Imhoff John E | Director | C Conversion | 1,650,215 | $0.0700 | $115,515 |
| Mar 31, 2026 | Imhoff John E | Director | C Conversion | 157,417 | $0.0700 | $11,019 |
| Mar 31, 2026 | Imhoff John E | Director | C Conversion | 157,417 | $0.0700 | $11,019 |
| Mar 26, 2026 | Blumberg Richard P. | Director | J Other | 1,040,000 | Not measured | Not measured |
| Mar 26, 2026 | Imhoff John E | Director | J Other | 2,157 | Not measured | Not measured |
| Mar 26, 2026 | Blumberg Richard P. | Director | J Other | 56,093 | Not measured | Not measured |
| Mar 26, 2026 | Imhoff John E | Director | J Other | 40,000 | Not measured | Not measured |
| Mar 26, 2026 | Imhoff John E | Director | J Other | 10 | Not measured | Not measured |
| Mar 26, 2026 | Blumberg Richard P. | Director | J Other | 260 | Not measured | Not measured |
| Mar 26, 2026 | Blumberg Richard P. | Director | J Other | 352,000 | Not measured | Not measured |
| Mar 26, 2026 | Blumberg Richard P. | Director | J Other | 88 | Not measured | Not measured |
| Mar 26, 2026 | Blumberg Richard P. | Director | J Other | 19,038 | Not measured | Not measured |
| Mar 10, 2026 | Blumberg Richard P. | Director | A Award | 110,000 | Not measured | Not measured |
| Mar 10, 2026 | JAMES MICHAEL C | Director | A Award | 110,000 | Not measured | Not measured |
| Mar 10, 2026 | Imhoff John E | Director | A Award | 110,000 | Not measured | Not measured |
| Mar 10, 2026 | Grujic Alan | Director | A Award | 110,000 | Not measured | Not measured |
| Mar 1, 2026 | Blumberg Richard P. | Director | H Expiration (Short) | 900,000 | $0.3000 | $270,000 |
| Feb 27, 2026 | Imhoff John E | Director | J Other | 100 | Not measured | Not measured |
| Feb 27, 2026 | Imhoff John E | Director | J Other | 400,000 | Not measured | Not measured |
| Feb 27, 2026 | Imhoff John E | Director | C Conversion | 156,086 | $0.0700 | $10,926 |
| Feb 27, 2026 | Imhoff John E | Director | C Conversion | 156,086 | $0.0700 | $10,926 |
| Feb 25, 2026 | JAMES MICHAEL C | Director | X In-the-Money | 100,000 | Not measured | Not measured |
| Feb 25, 2026 | Imhoff John E | Director | X In-the-Money | 500,000 | Not measured | Not measured |
| Feb 25, 2026 | Blumberg Richard P. | Director | D Disposition | 1,000,000 | Not measured | Not measured |
| Feb 25, 2026 | Blumberg Richard P. | Director | A Award | 1,000,000 | Not measured | Not measured |
| Feb 25, 2026 | Blumberg Richard P. | Director | D Disposition | 1,000,000 | Not measured | Not measured |
| Feb 25, 2026 | Imhoff John E | Director | J Other | 500,000 | Not measured | Not measured |
| Feb 25, 2026 | JAMES MICHAEL C | Director | X In-the-Money | 100,000 | Not measured | Not measured |
| Feb 25, 2026 | Imhoff John E | Director | X In-the-Money | 500,000 | Not measured | Not measured |
| Feb 25, 2026 | Imhoff John E | Director | J Other | 500,000 | Not measured | Not measured |
| Feb 25, 2026 | Imhoff John E | Director | J Other | 500,000 | Not measured | Not measured |
| Feb 25, 2026 | Imhoff John E | Director | J Other | 500,000 | Not measured | Not measured |
| Feb 25, 2026 | Blumberg Richard P. | Director | M Exercise | 1,000,000 | $0.2000 | $200,000 |
| Feb 25, 2026 | Blumberg Richard P. | Director | A Award | 1,000,000 | Not measured | Not measured |
| Feb 25, 2026 | JAMES MICHAEL C | Director | J Other | 100,000 | Not measured | Not measured |
| Feb 25, 2026 | Blumberg Richard P. | Director | M Exercise | 1,000,000 | Not measured | Not measured |
| Feb 25, 2026 | JAMES MICHAEL C | Director | J Other | 100,000 | Not measured | Not measured |
| Feb 25, 2026 | JAMES MICHAEL C | Director | J Other | 100,000 | Not measured | Not measured |
| Feb 25, 2026 | JAMES MICHAEL C | Director | J Other | 100,000 | Not measured | Not measured |
| Feb 2, 2026 | Imhoff John E | Director | C Conversion | 312,720 | $0.0700 | $21,890 |
| Feb 2, 2026 | Imhoff John E | Director | C Conversion | 312,720 | Not measured | Not measured |
| Jan 5, 2026 | Imhoff John E | Director | J Other | 25,338 | Not measured | Not measured |
| Dec 18, 2025 | Imhoff John E | Director | C Conversion | 195,460 | $0.0700 | $13,682 |
| Dec 18, 2025 | Imhoff John E | Director | C Conversion | 195,460 | Not measured | Not measured |
| Aug 29, 2025 | Grujic Alan | Director | P Purchase | 152,108 | Not measured | Not measured |
| Aug 29, 2025 | JAMES MICHAEL C | Director | P Purchase | 27,778 | $0.1800 | $5,000 |
| Aug 29, 2025 | Grujic Alan | Director | P Purchase | 152,108 | Not measured | Not measured |
| Aug 29, 2025 | Imhoff John E | Director | P Purchase | 166,667 | $0.1800 | $30,000 |
| Aug 29, 2025 | Imhoff John E | Director | P Purchase | 166,667 | Not measured | Not measured |
The full Form 4 history is on the GTHP company page (Insider Trades card, View all).
Questions about this data
Which insider transactions are open-market trades?
Code P (open market or private purchase) and code S (open market or private sale). Code F is shares withheld to pay tax on vesting stock, A is an award from the company, M and X are option exercises and G is a gift. None of those is the insider choosing to buy or sell in the market.
How quickly are insider trades reported?
A Form 4 is due before the end of the second business day after the trade. The date shown is the transaction date from the form.
Who has to file Form 4?
Officers, directors and beneficial owners of more than 10% of a class of the company’s registered equity, under Section 16 of the Securities Exchange Act.
Look up any code in the Form 4 transaction code reference, or read Form 4 codes explained.