Endologix, Inc. and TriVascular Technologies, Inc. Announce Merger to Create a Leading Cardiovascular Growth Company Focused on the Treatment of Aortic Disorders, $9.10/TriVascular Unit, Total $211M

Endologix, Inc.

and TriVascular Technologies, Inc.

announced today that they have entered into a definitive merger agreement under which Endologix and TriVascular will combine in a stock and cash transaction. The transaction is valued at $9.10 per TriVascular share, or a total of approximately $211 million, based on Endologix's closing stock price of $13.81 per share on October 23, 2015. John McDermott, Chairman and Chief Executive Officer of Endologix, said, "This merger enhances the near and long-term growth potential of our business by bringing together two of the most innovative companies in the field of endovascular abdominal aortic aneurysm ("AAA") treatment. We believe the combined company will be uniquely positioned to provide physicians with three complementary products to treat a wide range of patient anatomies. These devices, the AFX®, Ovation® and Nellix® systems, each offer unique clinical advantages and together will offer physicians the ability to choose the best solution for each patient – all provided by one company. In addition to the existing products, the combined company will have a deep pipeline of new devices including AFX2 and the Ovation iX™ system that are both planned for market introduction by the first quarter of 2016. These new products are expected to be followed by additional new technologies including the launch of Nellix in the U.S., which is expected to receive PMA approval by the end of 2016." Mr. McDermott added, "In addition to the strong product portfolio, the merger brings together two experienced endovascular AAA sales and clinical teams in the U.S. and Europe. The combined organizations will provide broader coverage, increased clinical support and convenience for physicians and hospitals who want to access multiple technologies through a single company and representative." Christopher G. Chavez, President and Chief Executive Officer of TriVascular, said, "Endologix and TriVascular are two entrepreneurial companies that share a strong strategic focus on providing physicians with innovative and less invasive technologies to make endovascular aortic repair safer and available to more patients, including the significant number of patients with challenging aortoiliac anatomy. We believe physician and patient access to the Ovation platform will be significantly enhanced from a combined larger, stronger and more experienced field sales and service organization. We look forward to combining our significant and complementary expertise and capabilities for the benefit of our customers, patients, employees and stockholders."