sigma-tau Group acquires Enzon’s specialty pharmaceutical business

Enzon Pharmaceuticals, Inc. (Nasdaq: ENZN) ("Enzon") announced today that it has closed the sale of its specialty pharmaceutical business to the sigma-tau Group ("sigma-tau"). Enzon is a biopharmaceutical company dedicated to the discovery and development of important medicines for patients with cancer and other life-threatening conditions. Enzon's business now consists of its royalties, Peg SN38, LNA and PEG technology platforms.

“We will continue to evaluate options to return value to our shareholders.”

The specialty pharmaceutical business sold to sigma-tau includes four marketed products, Oncaspar®, Adagen®, DepoCyt®, and Abelcet®, as well as the manufacturing facility in Indianapolis, Indiana.

At the closing, Enzon received $300 million in cash. Due to the availability of net operating loss carry forwards, taxes payable on the gain of the sale are not anticipated to be significant. The purchase price is subject to a customary post-closing working capital adjustment. In addition, Enzon may be entitled to an additional amount of up to $27 million based on the achievement of success milestones and royalties of 5 to 10 percent on incremental net sales above a 2009 baseline amount through 2014 in respect of the four marketed specialty pharmaceutical products sold.

"We are very pleased to complete this transaction with sigma-tau. Enzon will now focus on its innovative pipeline and technology platforms,” said Alex Denner, Enzon's Chairman of the Board of Directors. “We will continue to evaluate options to return value to our shareholders."

A portion of the proceeds from the sale will be used to commence an offer to repurchase its outstanding 4% Convertible Senior Notes due 2013.

Source: Enzon Pharmaceuticals, Inc.