Redwood City-based Qualys, a provider of cloud security software, priced its IPO last night at $12.00 per share, raising $90.9M in its offering. The firm was slightly up in morning trading on Friday. Qualys was venture backed by Trident Capital, GRP Partners, and Hewlett-Packard. Qualys provides a suite of cloud-based, security software products, including PCI compliance, vulnerability management, web application scanning, and malware detection. Qualys priced at the midpoint of its estimated IPO range, which had been set at $11 to $13 per share.