Adweek publisher Erica Bartman is out in the first major shake-up at the magazine since investment firm Guggenheim Partners took over ownership last month of its parent, formerly known as Prometheus Global Media.

The parent of Billboard, Adweek and The Hollywood Reporter is now known as Guggenheim Digital Media, following the buyout of minority owner Pluribus Capital Partners, an investment firm headed by Jimmy Finkelstein, Matthew Doull and George Green.

In the shake-up, also let go were Adweek veteran and Associate Publisher Alison Fahey; Vice President of Circulation Madeline Krakowsky; and senior VP Rory McCafferty.

In last month’s buyout, Ross Levinsohn, a former interim CEO at Yahoo! was named the new CEO, replacing Dottie Mattison, who held the job for only six months.