During China’s yearslong crackdown on the tech sector, Alibaba Group Holding’s internal messaging boards lit up with dreams to "MAGA” — Make Alibaba Great Again. Now, the company is deploying one of its most potent weapons to accomplish that mission: Jack Ma.

After vanishing from the public eye at the outset of an antitrust investigation in late 2020, China’s most recognizable entrepreneur is back on Alibaba’s campuses — and he’s more directly involved than he’s been in half a decade, according to people familiar with the company. Signs of his unseen hand are coming into sharper focus, perhaps no more so than in its pivot to artificial intelligence and its declaration of war on e-commerce foes JD.com and Meituan. Ma was instrumental in Alibaba’s decision to spend as much as 50 billion yuan ($7 billion) on subsidies to beat back JD's surprise entry to the market, said one of the people, requesting not to be named because the matter is private.

Alibaba, which since 2023 has been run by two of Ma’s longest-serving lieutenants, Joe Tsai and Eddie Wu, has not said whether Ma has returned in any official capacity. An Alibaba representative didn’t respond to an email with a detailed request for comment. But people familiar with its operations say the 61-year-old founder is at his most hands-on since resigning as chairman in 2019. Beyond helping orchestrate billions in spending, he’s also seeking constant updates on Alibaba’s broader AI endeavors. In one instance, he messaged a senior manager three times in a day asking for updates, according to one of the people.