Nvidia CEO Jensen Huang and SoftBank’s Masayoshi Son recently shared a few laughs and some bittersweet memories at the AI Summit in Tokyo. At the center of their banter? SoftBank’s former role as Nvidia’s largest shareholder – and how they decided to let that golden opportunity slip away.

Don't Miss:

• This Adobe-backed AI marketing startup went from a $5 to $85 million valuation working with brands like L'Oréal, Hasbro, and Sweetgreen in just three years – here's how there's a limited time opportunity to invest at $1,000 for only $0.50/share before closing date.

• The global games market is projected to generate $272B by the end of the year — for $0.55/share, this VC-backed startup with a 7M+ userbase gives investors easy access to this asset market.

In 2019, SoftBank (OTC:SFTBF) sold all of its Nvidia (NASDAQ:NVDA) shares, which comprised about 4.9% of the company. It seemed like a solid move back then: they had invested around $700 million and ended up making $3.3 billion from the sale. But now, Son admits the decision wasn’t exactly a home run. Today, those shares would be worth over $150 billion.

During their talk, Huang jokingly said, “We can cry together,” hugging Son on stage as they remembered what might have been. Son, not missing a beat, added that he had to “tearfully” sell those shares. Huang even shared that Son once offered him financial backing to buy Nvidia outright – something he now wishes he'd taken. “That was a great idea,” Huang said, with a hint of regret.

Trending: ‘Scrolling to UBI': Deloitte's #1 fastest-growing software company allows users to earn money on their phones – invest today with $1,000 for just $0.25/share

Huang praised Son for being a visionary who has consistently backed winning innovators like Bill Gates, Jerry Yang and Steve Jobs. Son has a talent for recognizing big opportunities and helping establish major tech moments, from bringing Gates and Jobs to Japan to making Alibaba’s success possible in China. Yet, even with all those successes, the missed Nvidia chance still stings.