Marina Biotech, Inc. (Formerly Known as MDRNA, Inc.) Joins OTCQX

NEW YORK, Feb. 2, 2012 /PRNewswire/ -- OTC Markets Group Inc. (OTCQX: OTCM), the company that operates the world’s largest electronic marketplace for broker-dealers to trade unlisted stocks, today announced that Marina Biotech, Inc. (OTCQX: MRNA), a company focused on oligonucleotide-based therapeutics, is now trading on the OTC market’s highest tier, OTCQX®.

(Logo: http://photos.prnewswire.com/prnh/20110118/MM31963LOGO )

Marina Biotech began trading today on the OTC market’s prestigious tier, OTCQX U.S. Investors can find current financial disclosure and Real-Time Level 2 quotes for the Company on www.otcmarkets.com.

“Marina Biotech has chosen to remain investor focused as they transition to trade on OTCQX, which allows them to continue to provide superior information and transparent trading on the quality-controlled OTCQX platform,” said R. Cromwell Coulson, President and Chief Executive Officer of OTC Markets Group. “We are pleased to welcome Marina Biotech to OTCQX.”

Pryor Cashman LLP will serve as Marina Biotech’s Designated Advisor for Disclosure (“DAD”) on OTCQX, responsible for providing guidance on OTCQX requirements.

About Marina Biotech, Inc.

Marina Biotech, Inc. (OTCQX: MRNA) trades in the United States on OTCQX under the symbol “MRNA”. Marina Biotech is a biotechnology company focused on the development and commercialization of oligonucleotide-based therapeutics utilizing multiple mechanisms of action including RNA interference and messenger RNA translational blocking.

About OTC Markets Group Inc.

OTC Markets Group Inc. (OTCQX: OTCM) operates the world’s largest electronic marketplace for broker-dealers to trade unlisted stocks. Our OTC Link platform supports an open network of competing broker-dealers that provide investors with the best prices in over 10,000 OTC securities. We categorize the wide spectrum of OTC companies into three tiers - OTCQX (the quality-controlled marketplace for investor friendly companies), OTCQB® (the U.S. reporting company marketplace for development stage companies), and OTC Pink (the speculative trading marketplace) - so investors can identify the level and quality of information companies provide. To learn more about how OTC Markets Group makes the unlisted markets more transparent, informed, and efficient, visit www.otcmarkets.com.

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SOURCE OTC Markets Group Inc.

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