No. Mary also walked the earth, free of all sin, from conception until death.
She was saved by her Son’s sacrifice, just like everybody else.
But unlike everyone else she is the Mother of God: God made her ‘Full of Grace’ in order to worthily carry Himself.
Remember: He is not bound by time nor space.
She was saved by her Son’s sacrifice, just like everybody else.
If she was free from all sin then she did not need to be saved by the sacrifice of Jesus.