Rihanna and fans enjoy the TIDAL X: RIHANNA BBHMM event on July 1, 2015 in Los Angeles.

Rihanna and fans enjoy the TIDAL X: RIHANNA BBHMM event on July 1, 2015 in Los Angeles.  

Jason Kempin/Getty Images for TIDAL

The wheels keep turning at Jay Z’s Tidal and Roc Nation, with news of a handful of recent departures at the companies.

Tidal’s svp of artist and label relations Zena Burns left the streaming service in June after a brief, two-month stint. On Linkedin, she touts her work on an exclusive Jason Aldean concert stream and mentions a move from NYC to Chicago early in her tenure. Burns has since started working at Moxie Coalition, located in the Windy City.

Replacing Burns at Tidal is Timothy Patrick Riley, who previously served as global head of music at Activision Blizzard gaming company. His Linkedin profile notes he has has worked at Tidal since May.

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Over at Roc Nation, chief marketing officer Jeff Geisler departed in July for a parallel move to advertising giant Saatchi & Saatchi. Geisler had worked at Roc Nation for a over a year and a half. Prior to that, he’d spent seven years at McCann Erickson.

Roc Nation has also lost Jennifer Justice, the firm’s longtime evp of strategic marketing and business development, Billboard has confirmed. Roc Nation did not respond to a request for comment on the rumored move.

In June, Tidal’s interim CEO Peter Tonstad was let go after three months on the job. No replacement has been announced. Vania Schlogel, the company’s chief investment officer and public face for Tidal’s bumpy rollout in March and April, has been keeping a low profile since a no-show at a scheduled appearance at the New Music Seminar on June 23 in New York.

Update, Tue. Aug. 4, 5:15PM ET: Billboard has independently confirmed the exit of Jennifer Justice. The article has been changed to reflect this.