X0305 4 2012-06-01 0 0001111632 AVISTAR COMMUNICATIONS CORP AVSR 0001453080 MurrayMetzger Elias Arthur 1855 S. GRANT ST, 4TH FLOOR SAN MATEO CA 94402 0 1 0 0 Chief Financial Officer Common Stock 2012-06-01 4 M 0 37500 0 A 200100 D Restricted Stock Units (RSUs) 2012-06-01 4 M 0 37500 0 D 2012-06-01 Common Stock 37500 137500 D Restricted Stock Units (RSUs) were granted pursuant to Avistar Communications Corporation 2009 Incentive Equity Plan. Each RSU represents a contingent right to receive one share of Avistar's common stock. The RSUs vest at 50% on June 1, 2012 and then 100% on June 1, 2013. Change of Control provision triggers 100% vesting. This transaction represents the settlement of restricted stock units that vested on June 1, 2012 in shares of common stock. Elias A. MurrayMetzger 2012-06-04