Marina Biotech, Inc. to Report Second Quarter Results on August 12, 2010 at 4:30 p.m. Eastern Time

BOTHELL, WA--(Marketwire - August 5, 2010) -  Marina Biotech, Inc. (NASDAQ: MRNAD), formerly known as MDRNA, Inc., a leading RNAi-based drug discovery and development company, today announced that it will host a conference call with investors and security analysts on Thursday, August 12, 2010, at 4:30 p.m. Eastern Time (1:30 p.m. Pacific Time) to provide a business update and discuss financial results for the second quarter ended June 30, 2010.

To participate in the live conference call, U.S. residents should dial 800-265-0241 and international callers should dial 617-847-8704. The participant code for the live conference call is 17358335. To access the 24-hour telephone replay, U.S. residents should dial 888-286-8010 and international callers should dial 617-801-6888. The participant code for the replay is 39898166.

Alternatively, to access the live audio webcast for this conference call, please go to the Event Calendar pages of the Investors section of Marina Biotech's Web Site at http://www.marinabio.com approximately 15 minutes prior to the conference call in order to register, and download any necessary software. A replay of the webcast will be available for 30 days following the event.

About Marina Biotech, Inc.

Marina Biotech (formerly known as MDRNA, Inc.) is a biotechnology company, focused on the development and commercialization of therapeutic products based on RNA interference (RNAi). Marina Biotech's pipeline currently includes a clinical program in Familial Adenomatous Polyposis (a precancerous syndrome) and two preclinical programs -- in hepatocellular carcinoma and bladder cancer. Marina Biotech's goal is to improve human health through the development of RNAi-based compounds and drug delivery technologies that together provide superior therapeutic options for patients. Additional information is available at http://www.marinabio.com.

Contact Information:

Contacts:
Marina Biotech, Inc.:
Pete Garcia
Chief Financial Officer
(425) 908-3603
pgarcia@marinabio.com

Westwicke Partners (Investors):
Stefan Loren, Ph.D.
(443) 213-0507
sloren@westwicke.com
John Woolford
(443) 213-0506
john.woolford@westwicke.com

McKinney|Chicago (Media):
Alan Zachary
(312) 944-6784 x 316 or
(708) 707-6834
azachary@mckinneychicago.com