Biz Stone Is Going Back To Twitter

After a four-year hiatus to co-found and lead Jelly Industries, Inc., another member of Twitter Inc TWTR’s co-founding team is coming home.

“There’s something about the personality of a company that comes from the folks who start it,” Biz Stone wrote in a Tuesday Medium post. “There’s a special feeling they bring with them. Jack [Dorsey] coming back was a big step forward. And now, it’s my turn—I’m returning to full time work at Twitter starting in a couple of weeks!”

Stone said he’s not replacing anyone on staff but is merely filling a “Biz-shaped hole” left from his departure. His focus will be, vaguely, to infuse the company culture with his tech-startup energy.

A Second Wind

More importantly, Stone gets a second shot at building the company — the potential of which he initially underestimated.

“When we got to 5,000 people using it, I thought we were successful,” he told Vanity Fair in 2014. The company now supports 328 million accounts, according to Statista.

And when Facebook Inc FB offered to buy the company in 2008, he slapped a $500 million sticker on the brand. Fortunately, he backed out of the deal, and Twitter now flashes a $14 billion price tag.

“Twitter has woven itself into the fabric of our global society,” he wrote in his announcement. “The world needs Twitter, and it’s here to stay. I’m so lucky that I get to step back in and help shape it’s [sic] future.”

What He Brings Back

Another of Silicon Valley’s college dropout all-stars, the one-time Alphabet Inc GOOG GOOGL employee boasts a résumé teeming with leadership triumphs, including an Oxford University fellowship and the titles of co-founder and chief creative officer of both Medium.com and The Obvious Corporation.

According to his LinkedIn profile, Stone has received The Economist’s Innovation Award, the International Center for Journalism Innovation Award and an Emmy for his Twitter account. He has also been named one of TIME’s 100 Most Influential People in the World, GQ’s Nerd of the Year and INC Magazine’s Entrepreneur of the Decade.