Ken Griffin's position in MPLX LP - Unit is currently worth $34.3 Million. That's 0.03% of their equity portfolio (627th largest holding). The first MPLX LP - Unit trade was made in Q4 2014. Since then Ken Griffin bought shares 59 more times and sold shares on 43 occasions. The stake costed the investor $23.2 Million, netting the investor a gain of 48% so far.