Howard Marks acquired 4.77 Million Petroleo Brasileiro S.A. Petrobras - ADR shares worth $74.3 Million. That's 1.40% of their equity portfolio (18th largest holding). The first Petroleo Brasileiro S.A. Petrobras - ADR trade was made in Q3 2008. Since then Howard Marks bought shares 30 more times and sold shares on seventeen occasions. The stake costed the investor $52.3 Million, netting the investor a gain of 42% so far.