Eight Skype executives have departed the company following Microsoft's $8.5 billion buyout in May.
"Skype, like any other pragmatic organisation, constantly assesses its team structure to deliver its users the best products," the company said in a written statement. "As part of a recent internal shift Skype has made some management changes."
The spokeswoman declined to say whether the eight executives were laid off or resigned.
The departures included David Gurle, vice president and general manager for Skype for Business; Don Albert, vice president and general manager for the Americas and Advertising; Doug Bewsher, chief marketing officer; Christopher Dean, head of consumer market business development; Russ Shaw, vice president and general manager; and Anne Gillespie, head of human resources.
Two executives who joined Skype following its acquisition earlier this year of video-sharing utility Qik have also left. They are Qik founder Ramu Sunkara and senior vice president Allyson Campa.
Gurle joined Skype in January 2010, after a stint with Thomson Reuters' collaboration services business unit. Prior to that he founded Microsoft's Real Time Communications business unit, running it for three years, according to a Skype biography.
The U.S. Federal Trade Commission approved Microsoft's offer for Skype on Thursday. Microsoft expects to obtain all necessary regulatory clearances by the end of year, it said when it announced the deal.
Microsoft plans to incorporate Skype into a variety of platforms, including the Xbox and Kinect gaming devices, Windows Phone and other communications services it offers including Lync and Outlook.