On August 10, 2016, the board of directors of William Lyon Homes expanded the size of the board from eight to nine members and appointed Matthew R. Zaist, the company's president and chief executive officer, to fill the new vacancy on the board, effective immediately. At this time, the company does not expect Mr. Zaist to serve on any of the board's committees. Mr. Zaist first joined the Company in 2000, and was promoted to President and Chief Executive Officer in March 2016. Since joining the company, Mr. Zaist has served in a number of corporate operational roles, including President and Co-Chief Executive Officer from July 2015 to March 2016.