Marlin Equity Partners is taking Tellabs (Nasdaq: TLAB) private for $891 million.

The purchase price works out to $2.45 per share in cash. Tellabs stock closed at $2.35 on Oct. 18, before the deal was announced.

Tellabs, headquartered in Naperville, Ill., provides networking services to telecommunications service providers, independent operating companies, cable companies and government agencies.

Los Angeles-based Marlin is a private equity firm that has previously invested in Hara Software Inc., Iolo Technologies LLC and WorkOasis. The firm has about $2.6 billion in capital under management.

Marlin plans to invest in Tellabs research and development.

Credit Suisse (NYSE: CS) and Evercore Partners (NYSE: EVR) are Marlin’s financial advisers, while Schulte Roth & Zabel LLP is providing legal advice. Goldman Sachs & Co. (NYSE: GS) is Tellabs financial adviser, while Sidley Austin LLP is acting as legal counsel.