Saint-Gobain and the Burkard family have decided to amend their agreement relating to the sale of shares of Schenker-Winkler Holding (SWH) - which holds the majority of Sika voting rights - and to extend the validity of the agreement until June 30, 2017. Read the news release  about it at:  https://www.saint-gobain.com/sites/sg_master/files/cp_12_03_2016_saint-gobain_sika_va.pdf