Insider Activity of Shaffner George P.
The largest purchase of all time was on 2012-10-31 and amounted to 8000 shares of MPLX LP for $176,000.
The largest sale of all time was on 2015-05-04 and amounted to 52426 shares of Marathon Petroleum Corporation for $5.05M.
Biography of Shaffner George P.
No biography is available at this moment.