At least 24 companies have proposed IPOs, including 17 since Oct. 1, 2013, and 11 in the last 15 days. Unless noted, companies are seeking to list on NASDAQ. (A) If proposed shares and price range are available, the mid-point was used to calculate the amount to be raised; (B) Status at time of filing; (C) Submitted confidential draft registration statement to the SEC: Ruthigen Inc. in May and