Mark Halliday, director of Global’s Digital Ad Exchange (DAX), has left the company after little more than a year.
Halliday started in the role heading up the digital audio and programmatic outdoor advertising platform at Global in December 2021, and prior to that had been chief digital and data officer at Omnicom media agency Manning Gottlieb OMD.
Previously he had held other agency positions including CEO of Omnicom Media Group Performance, APAC.
Global declined to comment other than confirming Halliday was no longer at the company.
