Dan Rose, Facebook's vice president of partnerships and a key business executive who joined in 2006, will leave the company by February, he said in a Facebook post (first covered by Recode).

Why it matters: Rose is the second high-profile exec to announce his departure this summer from a company that very rarely sees anyone leave its top ranks. Rose says he wants to be closer to his family, which now lives in Hawaii. His post makes no mention of the company's tough year of controversies..