The data center security company Imperva is looking for a buyer and has gotten interest from Cisco, IBM, Akamai, and Fortinet, according to a report from Bloomberg.

Imperva is working with Qatalyst Partners to shop itself.

In addition to the above-named companies, Imperva also has been evaluated by Forcepoint, a company jointly owned by private equity firm Vista Equity Partners and Raytheon, reports Bloomberg.

Imperva’s stock is up 22 percent this morning to $53.05, giving it a market capitalization of about $1.74 billion.

An analyst note penned by Mitch Steves of RBC Capital Markets says a purchase by Cisco would align with its stated strategy to boost it security portfolio. He said that Cisco’s portfolio is “maximized in terms of attacks from the outside.” Imperva’s technology would be a “next step” in boosting its portfolio with hybrid cloud security, writes Steves.

Imperva’s flagship product is its SecureSphere Data Security Suite, which can protect on-premises data as well as data in private, public, and hybrid clouds.

Security was the top focus at Cisco’s big show this summer, Cisco Live, where it unveiled three new security products and said it’s working on building security products in-house as well.

Imperva’s move to find a buyer may be driven by activist investor Elliott Management, which owns a 10.9 percent stake in the company.