Michael Martin Breen insider trades

Open-market stock purchases and sales by Michael Martin Breen, CEO and Director at GT Biopharma, Inc, from SEC Form 4 filings since Oct 16, 2018.

Recent trades

No open-market trades in the last 12 months.

Companies traded

  • GTBP GT Biopharma, Inc: 1 buy, last Sep 4, 2025
  • CRKR Prairie Operating Co: 1 buy, last May 3, 2023

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