PTIX PROTAGENIC THERAPEUTICS INC Capital Structure Changes 8-K Filing 2025 - Stock Splits Protagenic Therapeutics, Inc. announced a reverse stock split of one-for-fourteen (1-for-14) of its common stock, effective May 5, 2025, after stockholder approval on April 18, 2025.Get access to all SEC 8-K filings of the PROTAGENIC THERAPEUTICS INC