One of these bets includes a relaunch of the social media platform's mobile app, he said, which took place in the second half of last year.
"I think we've seen stronger-than-expected performance relative to our own plan internally. As the year progresses, we get better visibility into how we're performing," Weiner told CNBC's "Squawk on the Street."
Weiner made his comments after LinkedIn reported better-than-expected quarterly results, sending the shares higher.
The solid results were welcome news after the company's shares plummeted in February on its dim outlook for the first quarter of 2016.