LOS ANGELES--(BUSINESS WIRE)--Response Genetics, Inc. (Nasdaq:RGDX) announced today that it has entered into a purchase agreement with certain new and existing investors and certain funds managed by Lansdowne Partners Limited Partnership to raise approximately $4 million from the private placement of 3,005,349 newly issued shares of its common stock, at a purchase price of $1.31 per share. The signing of the purchase agreement occurred on Friday, March 5, 2010. We expect the final closing of the shares will occur on Monday, March 8, 2010.