Jim Simons acquired 12.1 Million Denison Mines shares worth $17.3 Million. That's 0.03% of their equity portfolio (703rd largest holding). The investor owns 1.35% of the outstanding Denison Mines stock. The first Denison Mines trade was made in Q4 2015. Since then Jim Simons bought shares sixteen more times and sold shares on thirteen occasions. The investor's estimated purchase price is $21.1 Million, resulting in a loss of 18%.