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2016 Time 100 Gala
Co-founder and editor-in-chief of The Huffington Post Arianna Huffington attends the 2016 Time 100 Gala at Frederick P. Rose Hall, Jazz at Lincoln Center on April 26, 2016 in New York City.
Jim Spellman—WireImage

Huffington Post co-founder Arianna Huffington said on Thursday she would leave the company to focus on running her new venture, health and wellness startup Thrive Global.

"I thought HuffPost would be my last act. But I've decided to step down as HuffPost's editor-in-chief to run my new venture, Thrive Global," she tweeted.

Read More: Arianna Huffington on Why One Company Gives Bonuses to Employees for a Good Night’s Sleep

Thrive Global, which will offer services to companies to improve the well-being of their employees, recently closed a Series A funding round ahead of a launch in the fall.

Verizon Communications owns the Huffington Post through AOL, which bought the liberal American online news aggregator and blog for $315 million in February 2011.