Mario Gabelli acquired 189k Schlumberger Ltd. shares worth $6.81M. That's 0.06% of their equity portfolio (290th largest holding). The first Schlumberger Ltd. trade was made in Q1 2001. Since then Mario Gabelli bought shares 30 more times and sold shares on 56 occasions. The investor's estimated purchase price is $11.7M, resulting in a loss of 42%.