After pricing higher than expected at $13 per share, Proofpoint Inc. raised $82 million in its initial public offering. The data protection company begins trading on the Nasdaq Friday, April 20, under the ticker PFPT. In this video, CEO Gary Steele says that Proofpoint plans on remaining  "very focused on looking for small, technology-oriented tuck-in acquisitions that ultimately extend and broaden the suite of capabilities that we deliver to our customers." - Katie Roof