Gyroscope Therapeutics, a gene therapy company developing treatments for eye diseases, filed a Form F-1 with the U.S. Securities and Exchange Commission announcing its intention to begin selling American Depository Shares on the Nasdaq Exchange under the ticker symbol “VISN.” At the time of its filing this week, Gyroscope said it has not yet set the pricing terms for its stock. The $100 million is a placeholder figure. Based on positive clinical activity, and a recent financing round, the company is likely to raise significantly more than $100 million.