Thomas Fuller | SOPA Images | Lightrocket | Getty ImagesCybersecurity company Netskope is eying a $7.3 billion valuation after pricing shares at $19 for its upcoming IPO, at the top end of its expected range.Netskope will start trading on Thursday on the Nasdaq under the ticker symbol "NTSK." The share sale raised $908.2 million.Earlier this week, Netskope lifted its expected pricing range to between $17 and $19 a share, up from an original range of $15 to $17. The company revealed plans to go p...