Jim Simons acquired 712 Thousand Denison Mines shares worth $1.39 Million. That's 0.00% of their equity portfolio (2104th largest holding). The first Denison Mines trade was made in Q4 2015. Since then Jim Simons bought shares fourteen more times and sold shares on eleven occasions. The stake costed the investor $1.19 Million, netting the investor a gain of 17% so far.