Insider Activity of Crampton Christopher A.S.
The largest purchase of all time was on 2014-03-20 and amounted to 16000 shares of MRC Global Inc. for $413,306.
The largest sale of all time was on 2013-03-12 and amounted to 52900000 shares of MRC Global Inc. for $1.42B.
Biography of Crampton Christopher A.S.
No biography is available at this moment.