Executive vice president Gregg Seibert has added to his responsibilities by taking on the top finance spot at Cablevision Systems Corp. He succeeds Michael Huseby, who has resigned but is expected to stay on through July 1 to help with the transition. Seibert has been at the company since 2009; before that, he was vice chairman of Merrill Lynch.
PPG Industries has promoted controller David Navikas to the roles of CFO and senior vice president, finance. He takes over from Robert Dellinger, who is resigning for health-related reasons. Navikas has been controller since he started at the company in 1995.
Richard Gunst plans to retire from his post as finance chief of DeVry Inc. once his replacement is in place. He joined the parent company of DeVry University in 2006.
Plastic compounds and resins supplier A. Schulman Inc. has named Joseph Levanduski CFO and treasurer. He comes to the company from Hawk Corp., where he was CFO and director of corporate development.
David Smith has resigned as head of finance at Thoratec Corp., effective July 1. Vice president of finance Roxanne Oulman has been named interim CFO at the ventricular assist device manufacturer while a search is under way for a permanent successor to Smith.
FuelCell Energy Inc. has promoted Michael Bishop to the roles of CFO, corporate secretary, and treasurer. He takes over from Joseph Mahler, who has resigned. Bishop, who joined the company in 2003, has been controller since 2007.
Daniel Kossmann has been named to lead the finance function at GFI Software. He headed finance at Initiate Systems Inc. until it was acquired by IBM in 2010.
Amusement-resort operator Cedar Fair Entertainment Co. has announced that head of finance Peter Crage has resigned, effective June 22. Vice president of finance and corporate tax David Hoffman and corporate controller Brian Witherow will head finance until a permanent replacement for Crage is found.
Fareed Khan has been named to the top finance spot at United Stationers Inc., effective July 18. He will succeed Victoria Reich, who announced in November that she would leave the company. Previously, Khan was executive vice president, finance and strategy, at USG Corp.
YuMe, a video-advertising technology firm, has selected Tim Laehy as its new finance chief. He is a former CFO of CloudShield Technologies.