NEW YORK ( TheStreet) -- Palo Alto Networks and Kayak priced their IPOs after market close on Thursday, as tech companies continue their return to the public markets following Facebook's ( FB) botched debut in May. Network security specialist Palo Alto Networks priced its IPO at $42 a share, according to a statement. The Fortinet ( FTNT) and Check Point Software ( CHKP) rival is offering 4,687,259 of the 6,200,000 total IPO shares. Palo Alto Networks is expected to begin trading on the New York Stock Exchange on Friday under the symbol "PANW". A highly regarded player in the security sector, the Santa Clara, Calif.-based firm raised its offering price to between $38 and $40 a share earlier this week. Palo Alto Networks grew its annual revenue from $13.4 million in fiscal 2009 to $118.6 million in fiscal 2011 and its net loss narrowed from $19 million to $12.5 million over the same period. The firm brought in revenue of $179.5 million in the nine months ending April 30, 2012. Online travel firm Kayak priced its IPO at $26 a share on Thursday, above the expected price range of $22 to $25, according to CNBC. The Norwalk, Connecticut-based company, which is offering 3.5 million shares, is expected to start trading on the Nasdaq under the ticker symbol 'KYAK' on Friday. --Written by James Rogers in New York. Follow @jamesjrogers >To submit a news tip, send an email to: firstname.lastname@example.org. Check out our new tech blog, Tech Trends. Follow TheStreet Tech on your wireless devices.