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Data

SEC EDGAR Form 4 ↗
CongressStock.com ↗
Track13F.com ↗
About the data

© 2026 InsiderTradingScreener.com. Data from SEC EDGAR Form 4 filings.For informational purposes only. Not financial advice.

Home/Insiders/Imhoff John E

Imhoff John E

Director

Director

Total trades

30

Bought (open market)

$156K

Sold (open market)

$0

Acquired (grants)

$2.7M

Tickers traded

1

Recent trades

Most recent Form 4 filings by Imhoff John E.

Imhoff John Etraded157,417 shares ofGTHPat $0.07$11KMar 31 · filed Apr 7Details
Imhoff John Etraded40,000 shares ofGTHPMar 26 · filed Apr 7Details
Imhoff John Etraded10 shares ofGTHPMar 26 · filed Apr 7Details
Imhoff John E

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Latest CEO & CFO Purchases Latest CEO & CFO Sales Director Purchases Officer Purchases Top Purchases This Week Top Sales This Week Top Officer Buys (Month)10% Owner Filings 10b5-1 Planned Trades Discretionary Trades Buy/Sell Ratios Politician-Insider Overlap

traded

2,157 shares of

GTHP

Mar 26 · filed Apr 7Details

Imhoff John Egranted110,000 shares ofGTHPat $0Mar 10 · filed Apr 7Details

Imhoff John Etraded100 shares ofGTHPFeb 27 · filed Mar 12Details

Imhoff John Etraded400,000 shares ofGTHPFeb 27 · filed Mar 12Details

Imhoff John Etraded156,086 shares ofGTHPat $0.07$11KFeb 27 · filed Mar 12Details

Imhoff John Etraded500,000 shares ofGTHPFeb 25 · filed Mar 12Details

Imhoff John Etraded500,000 shares ofGTHPFeb 25 · filed Mar 12Details

Imhoff John Etraded312,720 shares ofGTHPat $0.07$22KFeb 2 · filed Mar 12Details

Imhoff John Etraded25,338 shares ofGTHPJan 5 · filed Mar 12Details

Imhoff John Etraded195,460 shares ofGTHPat $0.07$14KDec 18, 2025 · filed Mar 12Details

Imhoff John Ebought166,667 shares ofGTHPat $0.18$30KAug 29, 2025 · filed Sep 5, 2025Details

Imhoff John Etraded104,448 shares ofGTHPAug 21, 2025 · filed Sep 5, 2025Details

Imhoff John Etraded1,200,000 shares ofGTHPAug 21, 2025 · filed Sep 5, 2025Details

Imhoff John Etraded300 shares ofGTHPAug 21, 2025 · filed Sep 5, 2025Details

Imhoff John Egranted110,000 shares ofGTHPat $0Jun 3, 2025 · filed Jun 12, 2025Details

Imhoff John Etraded6,365 shares ofGTHPApr 10, 2025 · filed Apr 17, 2025Details

Imhoff John Ebought263,069 shares ofGTHPat $0.1$26KMar 18, 2025 · filed Apr 17, 2025Details

View all 30 trades →