Molyneux purchased another 2 million shares for $54,000, increasing his stake to over 4.6 million shares.
Molyneux is also the chief executive office of uranium producer Paladin Energy (ASX:PDN).
Argosy is focused on the Rincon joint venture lithium project which it intends to fast track to production of clean commercial grade lithium carbonate.
Rincon is located in the world’s most prolific lithium producing region of Argentina.