Protest group The 1958 have announced plans for a march at Manchester United's final game of the season against Aston Villa a week on Sunday.
Monday's statement coincided with the 20th anniversary of the Glazer family's leveraged buyout of United in May 2005 and was titled 'a legacy of ruin'.
The group have not revealed details of the protest which follows a march by thousands of United fans before the game against Arsenal at Old Trafford earlier this season.
The statement read: 'May 2005 marked one of the darkest days in the history of Manchester United Football Club.