Form SC 13D/A GRAFTECH INTERNATIONAL Filed by: GAMCO INVESTORS, INC. ET AL Aug 17, 2015 04:09PM
Form SC 13D/A GRAFTECH INTERNATIONAL Filed by: GAMCO INVESTORS, INC. ET AL Jun 11, 2015 04:15PM
Form SC 13D/A GRAFTECH INTERNATIONAL Filed by: GAMCO INVESTORS, INC. ET AL Jun 4, 2015 11:51AM
Form SC 13D/A GRAFTECH INTERNATIONAL Filed by: GAMCO INVESTORS, INC. ET AL May 28, 2015 02:02PM
Gabelli's GAMCO Boosts Stake in GrafTech (GTI) to 5.1% Nov 24, 2008 05:11PM