NEWTON, Mass.--(BUSINESS WIRE)--Clinical Data, Inc. (NASDAQ: CLDA) announced today that affiliates of Chairman R.J. Kirk exercised warrants to purchase 190,505 shares of Clinical Data common stock at a purchase price of $19.45 per share. The warrants were issued in a private placement of common stock and warrants in June 2006, and became exercisable on December 13, 2006. As a result of the exercise of the warrants, Clinical Data received net cash proceeds of approximately $3.705 million.