Insider Activity of GRABB ROBERT
The largest purchase of all time was on 2008-04-11 and amounted to 160000 shares of Northern Oil and Gas, Inc. for $1.44M.
The largest sale of all time was on 2011-03-02 and amounted to 64924 shares of Northern Oil and Gas, Inc. for $2.07M.
Biography of GRABB ROBERT
No biography is available at this moment.