Live feed12:48:45·931dINSIDERFilingvia QuantisnowArrow Alexander K. bought $6,480 worth of PTIX Common Stock (8,000 units at $0.81), increasing direct ownership by 21% to 45,815 units (SEC Form 4)ByQuantisnow·Wall Street's wire, on your screen.PTIX· Protagenic Therapeutics Inc.Health CareOriginal source