Larian Studios does technically have a single shareholder in Tencent—which owns around 30% of the company. However, an important piece of context is that Tencent appears to own what's called a "preference" share, meaning that Tencent doesn't have voting rights when it comes to Larian's decision making. The rest of the company belongs to CEO and Founder Swen Vincke and his wife.
Interesting, did not know that.