Jim Simons acquired 202 Thousand Prothena plc shares worth $1.43 Million. That's 0.00% of their equity portfolio (2034th largest holding). The first Prothena plc trade was made in Q4 2013. Since then Jim Simons bought shares eighteen more times and sold shares on seventeen occasions. The investor's estimated purchase price is $4.78 Million, resulting in a loss of 70%.