Manchester United says its shares will float on the New York Stock Exchange (NYSE) at US$14 (€11.40) each.
That is below the expectations of the club owners the Glazer family.
The US initial public offering values the club at stg£1.4 billion.
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The sale is due to raise nearly stg£150 million.
Duncan Drasdo is Chief Executive of the Manchester United Supporters Trust.
He is firmly opposed to the move.