Alexander K. Arrow, Chief Financial Officer at Protagenic Therapeutics, Inc. ew (PTIX), bought 8,000 shares at $0.81 ($6K) on 2023-10-12, disclosed to the SEC on 2023-10-13.
Open-market purchase of $6k PTIX by Chief Financial Officer. Below the thresholds we flag for high-conviction alerts (no C-suite role, rare reversal, cluster, or A-grade history). Context: insider career grade C.
Something here stands out, but not much.
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| BIOL | BUY | 2014-07-23 | $15K | — | Filing → |
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