Bipul Sinha, co-founder and CEO of data security software company Rubrik. Sinha previously backed cloud management company Nutanix.Greylock PartnersRubrik, a data management software company backed by Microsoft, priced its IPO at $32 a share, according to a person familiar with the matter. That's above its expected range.The 10-year-old company had planned to sell 23 million shares ahead of its New York Stock Exchange debut on Thursday, and will trade under the ticker symbol "RBRK." The offering...