Susan Newton, thirty-eight, founded her own software firm at age fifteen and acquired her stock in an offering under Rule 505 of Regulation D. Newton grew her firm to $20 million in revenues before EBM Corporation purchased it in exchange for EBM common stock in a private placement under Section 4(2). Newton is no longer an officer of EBM or active in the day-to-day management, but she sits on the board of directors of EBM and owns 15 percent of its outstanding common stock. She proposes to sell all of her EBM stock to the public. The stock is actively traded on the Nasdaq stock market. Are there any restrictions on her ability to sell her EBM shares?