Adrienne Lofton, who has served as Under Armour’s SVP for global brand management since 2015, has resigned from the company, according to reports from Adweek and Advertising Age.

Adweek said Lofton was the company’s “most senior marketing executive.”

Under Armour’s global brand management team will now be led by Attica Jaques, a two-year veteran of the company responsible for previous campaigns targeting women.

The reason for Lofton’s exit weren’t clear. The news was announced in a memo to employees Monday morning.

“Adrienne Lofton has decided to pursue another opportunity outside of Under Armour, and we wish her all the best in her next endeavor. During her nine year tenure, Adrienne has contributed significantly to the growth of the company,” read a statement from Under Armour to Adweek. “As part of UA’s long term succession planning, Attica Jaques will now lead the Global Brand Management team.”

The statement continued: “Attica joined Under Armour in 2016 as the brand leader for the women’s category, and most recently was leading Under Armour’s marketing regional and channel strategy. Among her creative achievements is the 2017 global women’s campaign ‘Unlike Any‘ celebrating female athletes forging ahead in the face of unnecessary comparisons. Attica has more than 20 years of global brand experience, and several years working and living abroad in both Asia and Europe.”

Lofton led Under Armour’s recent spring campaign starring Dwayne “The Rock” Johnson, the brand’s largest effort.

Her exit follows the departure of former chief marketing officer Andrew Donkin last November after 15 months. Donkin returned to Amazon as global head of marketing for Prime Video and original series.