Mario Gabelli acquired 231 Thousand Schlumberger Ltd. shares worth $11.4 Million. That's 0.12% of their equity portfolio (195th largest holding). The first Schlumberger Ltd. trade was made in Q1 2001. Since then Mario Gabelli bought shares 28 more times and sold shares on 52 occasions. The investor's estimated purchase price is $14.4 Million, resulting in a loss of 20%.