Facebook Inc. (FB) - Get Reportjust lost another executive after Oculus co-founder and former CEO Brendan Iribe announced that he was leaving the virtual reality company that Facebook acquired in 2014. 

Iribe made his announcement via his Facebook profile on Monday. 

"I never could have imagined how much we would accomplish and how far we would come. And now, after six incredible years, I am moving on," Iribe wrote. 

Several Facebook executives, including COO Sheryl Sandberg and CTO Mike Schroepfer, lauded Iribe for his contributions to the company in comments on his Facebook post. 

Iribe was effusive in his praise for the beleaguered social media company on his way out, but the exodus of top-level talent from the company has been rapid lately. 

Last month, Kevin Systrom and Mike Krieger, the co-founders of Instagram, announced that they were also leaving Facebook six years after Facebook paid $1 billion for the company. It was widely reported that the pair had disagreements with Facebook executives over the direction of Instagram, ad Systrom's farewell letter mentioned that the pair was "leaving Instagram to explore our curiosity and creativity again." 

Iribe's Facebook post mirrored some aspects of that statement. "This will be the first real break I've taken in over 20 years, Iribe wrote. "It's time to recharge, reflect and be creative. I'm excited for the next chapter."

In April, the founders of WhatsApp, which Facebook bought in 2014, abruptly announced they were leaving Facebook, reportedly over disagreements about encryption and privacy.

Shares of Facebook were up 0.8% Monday afternoon, but are down 12% year to date.

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