Infoblox today agreed to be acquired by the private equity firm Vista Equity Partners in a deal valued at about $1.6 billion.

Infoblox stockholders will receive $26.50 per share of common stock in cash. This represents a 33 percent premium to Infoblox’s average closing share price over the last 60 trading days.

The company’s stock has been on a roller-coaster ride since rumors surfaced that it was courting private equity firms. In May, it looked like Thoma Bravo might take the company private. That rumor caused Infoblox stock to rise as high as $18.98, valuing the company at about $1.1 billion.

The $26.50 share price looks good in comparison to earlier this year. But Infoblox stock traded as high as $40 a share in 2013 and traded above $27 a share as recently as mid-2015.

Jesper Andersen, president and CEO of Infoblox, said in a statement today, “This transaction will provide immediate and substantial value to Infoblox stockholders, while also giving Infoblox greater flexibility to execute on our long-term strategy to drive increased DDI automation and DNS security into the enterprise market."

Vista Equity Partners focuses on software, data, and technology-enabled businesses.

Infoblox’s technology protects domain name system (DNS), dynamic host configuration protocol (DHCP), and IP address management infrastructures, collectively known as DDI.

The transaction with Vista Equity Partners is expected to close in Infoblox’s fiscal second quarter.

Infoblox will maintain its corporate headquarters in Santa Clara, California. It will continue to be led by its current executive team.