Michael Malcy, ex-Vidiom Systems, becomes Alticast senior vice president-business...

Michael Malcy, ex-Vidiom Systems, becomes Alticast senior vice president-business development … Broadcast and communications lawyer Eric Greenberg, ex-Covington & Burling, becomes mergers and acquisitions partner at Paul Hastings … Univision CEO Joe Uva said he won’t renew his employment agreement, will seek new opportunities; successor search begins … Maryam Banikarim, ex-NBC Universal, becomes senior vice president-chief marketing officer, Gannett … XL Insurance adds Robert Schenone, ex-Sciemus Ltd., as vice president and senior underwriter for its Space Underwriting unit … Inmarsat subsidiary Segovia promotes Gabe Venturi to vice president-business operations.