Insider Activity of GRINNELL CHARLES W
The largest purchase of all time was on 2007-12-28 and amounted to 5000 shares of Fuel Tech, Inc. for $112,750.
The largest sale of all time was on 2006-01-11 and amounted to 23000 shares of Fuel Tech, Inc. for $196,650.
Biography of GRINNELL CHARLES W
No biography is available at this moment.