Glazer is the co-chairman alongside his brother Joel and the pair are also directors of United and the parent company Red Football Limited.
Avram Glazer was approached by a reporter in Florida on Tuesday and was asked a host of questions.
Sky News US correspondent Sally Lockwood offered Glazer the opportunity to apologise to the supporters and also queried whether it was time for the family to sell the club.
Glazer was asked ‘are the fans just customers to you?’ before Lockwood added ‘are the customers always right Mr Glazer?’
“Nothing to say at all to the fans of Manchester United Mr Glazer?” Lockwood continued. “This is an opportunity for you. An apology perhaps?
“Are the fans just customers to you Mr Glazer?”
But the 60-year-old refused to engage with the reporter and after purchasing his groceries, drove off without saying a word to Lockwood.
The son of Malcolm Glazer, Avram received a business degree from Washington University in 1982 before going on to gain a law degree from American University, Washington College of Law, in 1985.
Between 1995 and 2009 he was president and chief executive of Zapata Corporation, a US public company which has a range of interests.
All four of Malcolm Glazer’s sons are directors of United, with Kevin, Bryan and Edward also on the board, but it is Avram and Joel who are the executive co-chairmen.
The Glazer family’s takeover of Manchester United in 2005 was one of the most controversial in football history, as they performed what is referred to as a ‘leveraged buyout’.
Their £790million takeover was funded by debt to be repaid from the company’s future profits.
And that debt has already reportedly cost Manchester United almost £1.1billion in the form of both interest and debt repayments, according to Bloomberg .
The takeover at the time led to huge protests from supporters and they have continued to voice their concerns.
But the fans’ fury went to a new level in April when the Glazer family and United’s executive vice-chairman Ed Woodward attempted to take the club into the proposed European Super League.
In the statement released at the time, Joel Glazer was listed as the European Super League’s vice-chairman and United were understood to be one of the biggest advocates of the proposals.
However, two days later all six English clubs involved performed a dramatic U-turn following widespread criticism and anger from the large majority involved with the game on these shores.
Whilst the European Super League plans may be dead in the water for the time being, United fans have not stopped their protests and on Sunday the Red Devils’ match with Liverpool had to be postponed after hundreds of fans broke into Old Trafford.
You can read more about the protests here .