One of Fox News Channel’s senior sales executives, Mike Mandelker, is departing the channel, TVNewser has learned. Mandelker is VP of Eastern Sales for the channel, and will leave officially at the end of the month, FNC confirmed.

“As some of you already know, after seven and a half years with Fox News, Mike Mandelker has decided to move on,” Paul Rittenberg, executive VP of ad sales for Fox News wrote in an email to senior network staff this morning. “Mike deserves an enormous amount of credit for the continued strong revenue growth at Fox News. He is a legendary figure on Madison Avenue, and gave credibility to all our sales efforts with his well-deserved reputation for integrity and honesty in negotiations.”

Mandelker joined FNC in November of 2005, and before that was the executive VP of sales for the UPN network.

No word on who will be stepping into the soon-to-be-vacant role.