Caleb Williams NFL ownership
Earlier this season, the NFL adopted a rule that prohibits giving equity in a franchise to current players or other employees within the organization. There were a number of reasons outlined by the league, including salary-cap complications and potential conflicts of interest.
The timing was not necessarily random. After the news of the rule broke in July, Pro Football Talk's Mike Florio reported that Williams' representatives were letting prospective NFL teams know that the USC QB wanted partial ownership of whatever team selects him in the 2024 NFL Draft.
There has never been an active NFL player in the modern era that has also owned part of the team he plays for. Back in the 1920s, George Halas owned the Bears while he played, and then coached the team, but that was nearly 100 years ago.
Given the new rule implemented by the league, Williams' reported wish of being a player-owner won't come to fruition.