The Packers announced their sixth-ever stock offering on Monday. It's just the sixth time in the team's history that they are making this offer. However, buying shares does not mean a person has any "stock" in the team's ownership.
The stock offering will start Tuesday at 9 a.m. ET and shares will sell for $300. But buying shares "does not constitute an investment in 'stock' in the common sense of the term," per the release.
Those who buy shares will not receive any dividends and will have no decision-making powers within the organization. The NFL is allowing the Packers to do this because the team does not have a deep-pocketed owner, per ESPN.