Billionaire investor Dan Loeb recently admitted to one of his most painful portfolio missteps: exiting Palantir Technologies Inc.

(NASDAQ:PLTR) far too early.

By selling his firm's private stake in the $20 range, Loeb missed out on a monstrous post-IPO rally, serving as a stark reminder of the challenges in letting "winners ride." The Pain Of Selling Too Early Speaking on a recent episode of the All-In Podcast, the Third Point CEO opened up about the agonizing decisions surrounding when to hold high-growth technology companies.

When the conversation shifted to managing the transition from private to public markets, Loeb was remarkably candid about his regrets regarding the data analytics giant Palantir.

"It's one of the most vexing questions," Loeb confessed.