Margit Wennmachers, who has shaped a16z's marketing approach since joining in 2010, is stepping down and "graduating" from operating partner to partner emeritus (Michael Bodley/PitchBook)

Michael Bodley / PitchBook: Margit Wennmachers, who has shaped a16z's marketing approach since joining in 2010, is stepping down and “graduating” from operating partner to partner emeritus  —  Andreessen Horowitz's Margit Wennmachers is “graduating” to emeritus partner, she announced on Wednesday.