The Packers are expected to offer stock in the team by the end of the year, raising money to help pay for a $130 million renovation of Lambeau Field. The work would add thousands of seats in time for the 2013 season. The NFL's only publicly owned team hasn't sold stock since 1997. It likely would sell shares for about $200 each, which would get buyers voting rights, access to annual meetings and perks like ts of the playing field and locker rooms.