AT&T Mobility CEO Glenn Lurie is set to step down from his post next month as the wireless carrier moves full steam ahead with its Time Warner merger.

The news was reported by the Wall Street Journal on Wednesday morning; an AT&T spokesman subsequently confirmed the change to Wireless Week.

Lurie will retire effective September 1, the spokesman said.

AT&T declined to comment on why Lurie chose to leave now or what his future holds. The carrier also offered no comment on whether or not it would be hiring anyone to replace Lurie.

The news comes just days after AT&T announced it would be shuffling leadership as the Time Warner integration moves ahead. Among other changes, Chief Strategy Officer John Donovan has moved to a new role as CEO of the carrier’s new Communications segment. Donovan is tasked with overseeing AT&T’s Business Solutions, Entertainment, and Technology and Operations groups, which serve mobile, broadband, and video services to U.S.-based consumers and businesses.

Lurie got his start in wireless back in the early 1990s, working for McCaw Cellular in Portland, Ore., before making the leap to AT&T as a retail and B2B sales manager. Lurie climbed the ranks to Regional Vice President of AT&T’s California and Hawaii region in 2000, before becoming West Region President in 2002, and President of National Distribution for AT&T and Cingular in 2005. It was in that last role that Lurie gained prominence for his negotiations with Apple to bring the first iPhone and iPad to AT&T.

Lurie continued his ascent from there, being appointed President and CEO of AT&T Mobility in 2014, and taking on additional responsibilities as President and CEO of AT&T Mobility and Consumer Operations in 2016.

In his LinkedIn Profile, Lurie says he’s “proud to have worked for one of the most innovative technology companies in the world for almost 25 years.”