Ken Griffin acquired 29.1k Tenaris S.A. shares worth $1.05M. That's 0.00% of their equity portfolio (3085th largest holding). The first Tenaris S.A. trade was made in Q2 2013. Since then Ken Griffin bought shares 59 more times and sold shares on 54 occasions. The stake costed the investor $811k, netting the investor a gain of 30% so far.