Nov 3 (Reuters) - W. R. Grace & Co
* Festa to retire as Grace CEO in Q4 2018, remain as non-executive chairman
* W. R. Grace & Co - Fred Festa intends to step down as chief executive officer during Q4 of 2018, but remain as non-executive chairman
* W. R. Grace & Co - board elected Hudson La Force, president and chief operating officer, as a director of co Source text for Eikon: Further company coverage: (Bangalore.newsroom@thomsonreuters.com)