PTIX PROTAGENIC THERAPEUTICS INC Capital Structure Changes 8-K Filing 2025 - Warrant Exercises On May 21, 2025, Protagenic Therapeutics, Inc. announced it received $3.1 million from warrant exchanges and exercises over the previous four trading days. This filing highlights significant financial activity for the company.Get access to all SEC 8-K filings of the PROTAGENIC THERAPEUTICS INC