EMERYVILLE -- Lithium Technologies has issued shares for a equity stake in the tech company that is worth $5.6 million, according to a regulatory filing.

The $5.6 million will be used for "a business combination transaction," such as a merger, acquisition, or exchange, the company's filing with the Securities and Exchange Commission showed.

"We issued shares as part of an acquisition," Lithium said in a prepared release. The SEC filing came on the heels of the Oct. 9 announcement that Lithium had bought Social Dynamx.

Emeryville-based Lithium Tech helps brands build social networks that can be used to drive sales and marketing, inform product development, and improve customer service.

In January, Lithium closed a fourth round of financing that totaled $53.4 million.

Contact George Avalos at 925-977-8477. Follow him at twitter.com/george_avalos.