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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549





FORM 10-Q





QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF

THE SECURITIES EXCHANGE ACT OF 1934

For the Quarter Ended
September 30, 2010

Commission File Number 000-13789





MARINA BIOTECH, INC.

(Exact name of registrant as specified in its charter)







|                                                               |  |                                     
|-------------------------------------------------------------- |  | ------------------------------------
|Delaware                                                       |  | 11-2658569                          
|(State or other jurisdiction of
incorporation or organization) |  | (I.R.S. Employer Identification No.)
|                                                               | 
|3830 Monte Villa Parkway, Bothell, WA                          |  | 98021                               
|(Address of principal executive offices)                       |  | (Zip Code)                          

Registrants telephone number, including area code: (425) 908-3600





Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the
Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90
days.    Yes  x    No   ̈

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every
Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such
files).    Yes   ̈    No   ̈

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller
reporting company. See definitions of large accelerated filer, accelerated filer and smaller reporting company in Rule 12b-2 of the Exchange Act. (Check One):



|                        |  |                                                  |  |                           |  |  
|----------------------- |  | ------------------------------------------------ |  | ------------------------- |  | -
|Large accelerated filer |  |  ̈                                                |  | Accelerated filer         |  |  ̈
|                        |  |                                                  | 
|Non-accelerated filer   |  |  ̈  (Do not check if a smaller reporting company) |  | Smaller reporting company |  | x

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange
Act).    Yes   ̈    No  x

Indicate the number of shares outstanding of each of the issuers classes of common stock, as of the latest practicable date:



|                 |  |                                 |  |                   
|---------------- |  | ------------------------------- |  | ------------------
|Date             |  | Class                           |  | Shares Outstanding
|November 5, 2010 |  | Common stock  $0.006 par value |  | 25,393,685        









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##### Table of Contents



MARINA BIOTECH, INC.
AND SUBSIDIARIES

TABLE OF CONTENTS

PART I  FINANCIAL INFORMATION



|                                                                                                                               |  |  |    | 
|------------------------------------------------------------------------------------------------------------------------------ |  |  | -- | 
|ITEM 1  FINANCIAL STATEMENTS (unaudited)                                                                                      |  |  |    | 
|Condensed Consolidated Balance Sheets as of December 31, 2009 and September 30,
2010                                           |  |  | 3  | 
|Condensed Consolidated Statements of Operations for the three and nine months ended September 
30, 2009 and September 30, 2010 |  |  | 4  | 
|Condensed Consolidated Statement of Stockholders Equity (Deficit) for the nine months ended September 30,
 2010               |  |  | 5  | 
|Condensed Consolidated Statements of Cash Flows for the nine months ended September 
30, 2009 and September 30, 2010           |  |  | 6  | 
|Notes to Condensed Consolidated Financial Statements                                                                           |  |  | 7  | 
|ITEM 
2  MANAGEMENTS DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS                                |  |  | 24 | 
|ITEM 3  QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK                                                            |  |  | 29 | 
|ITEM 4  CONTROLS AND PROCEDURES                                                                                               |  |  | 30 | 
|                                                                                                                               | 
|PART II  OTHER INFORMATION                                                                                                    |  |  |    | 
|                                                                                                                               | 
|ITEM 6  EXHIBITS                                                                                                              |  |  | 31 | 
|SIGNATURES                                                                                                                     |  |  | 32 | 
|EXHIBIT INDEX                                                                                                                  |  |  | 33 | 

Items 1, 1A, 2, 3,
4 and 5 of PART II have not been included as they are not applicable.



2



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PART I  FINANCIAL INFORMATION

ITEM 1  FINANCIAL STATEMENTS

MARINA BIOTECH, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED BALANCE SHEETS

(Unaudited)



|                                                                                                                                                                                                                                    |  |                                                |          |   |                   |   |          |  
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |  | ---------------------------------------------- | -------- | - | ----------------- | - | -------- | -
|                                                                                                                                                                                                                                    |  | December 31,2009                               |          |   | September 30,2010 |  
|                                                                                                                                                                                                                                    |  | (In thousands, except share andper share data) |         
|ASSETS                                                                                                                                                                                                                              |  |                                                |          |   |                   |   |          |  
|Current assets:                                                                                                                                                                                                                     |  |                                                |          |   |                   |   |          |  
|Cash                                                                                                                                                                                                                                |  | $                                              | 748      |   |                   | $ | 947      |  
|Restricted cash                                                                                                                                                                                                                     |  |                                                | 998      |   |                   |   | 1,157    |  
|Accounts receivable                                                                                                                                                                                                                 |  |                                                | 211      |   |                   |   | 161      |  
|Prepaid expenses and other current assets                                                                                                                                                                                           |  |                                                | 700      |   |                   |   | 741      |  
|                                                                                                                                                                                                                                    |  |                                                |          |   |                   |   |          |  
|Total current assets                                                                                                                                                                                                                |  |                                                | 2,657    |   |                   |   | 3,006    |  
|Property and equipment, net                                                                                                                                                                                                         |  |                                                | 4,569    |   |                   |   | 4,049    |  
|Intangible assets                                                                                                                                                                                                                   |  |                                                |         |   |                   |   | 23,100   |  
|Goodwill                                                                                                                                                                                                                            |  |                                                |         |   |                   |   | 6,517    |  
|Other assets                                                                                                                                                                                                                        |  |                                                | 3        |   |                   |   | 54       |  
|                                                                                                                                                                                                                                    |  |                                                |          |   |                   |   |          |  
|Total assets                                                                                                                                                                                                                        |  | $                                              | 7,229    |   |                   | $ | 36,726   |  
|                                                                                                                                                                                                                                    |  |                                                |          |   |                   |   |          |  
|LIABILITIES AND STOCKHOLDERS EQUITY (DEFICIT)                                                                                                                                                                                      |  |                                                |          |   |                   |   |          |  
|Current liabilities:                                                                                                                                                                                                                |  |                                                |          |   |                   |   |          |  
|Accounts payable                                                                                                                                                                                                                    |  | $                                              | 2,114    |   |                   | $ | 3,094    |  
|Accrued payroll and employee benefits                                                                                                                                                                                               |  |                                                | 913      |   |                   |   | 1,864    |  
|Other accrued liabilities                                                                                                                                                                                                           |  |                                                | 1,361    |   |                   |   | 1,360    |  
|Accrued restructuring  current portion                                                                                                                                                                                             |  |                                                | 425      |   |                   |   | 991      |  
|Notes payable, net of discount                                                                                                                                                                                                      |  |                                                | 317      |   |                   |   |         |  
|                                                                                                                                                                                                                                    |  |                                                |          |   |                   |   |          |  
|Total current liabilities                                                                                                                                                                                                           |  |                                                | 5,130    |   |                   |   | 7,309    |  
|Accrued restructuring, net of current portion                                                                                                                                                                                       |  |                                                | 281      |   |                   |   | 85       |  
|Deferred rent and other liabilities                                                                                                                                                                                                 |  |                                                | 1,461    |   |                   |   | 1,407    |  
|Fair value liability for price adjustable warrants                                                                                                                                                                                  |  |                                                | 7,243    |   |                   |   | 3,500    |  
|Deferred income taxes                                                                                                                                                                                                               |  |                                                |         |   |                   |   | 8,085    |  
|                                                                                                                                                                                                                                    |  |                                                |          |   |                   |   |          |  
|Total liabilities                                                                                                                                                                                                                   |  |                                                | 14,115   |   |                   |   | 20,386   |  
|                                                                                                                                                                                                                                    |  |                                                |          |   |                   |   |          |  
|Commitments and contingencies                                                                                                                                                                                                       |  |                                                |          |   |                   |   |          |  
|Stockholders equity (deficit):                                                                                                                                                                                                     |  |                                                |          |   |                   |   |          |  
|Preferred stock, $.01 par value; 100,000 shares authorized: no shares issued and outstanding                                                                                                                                        |  |                                                |         |   |                   |   |         |  
|Common stock and additional paid-in capital, $0.006 par value; 90,000,000 shares authorized, 10,201,735 shares issued
and outstanding as of December 31, 2009 and 23,586,260 shares issued and outstanding as of September 30, 2010 |  |                                                | 256,131  |   |                   |   | 301,220  |  
|Accumulated deficit                                                                                                                                                                                                                 |  |                                                | (263,017 | ) |                   |   | (284,880 | )
|                                                                                                                                                                                                                                    |  |                                                |          |   |                   |   |          |  
|Total stockholders equity (deficit)                                                                                                                                                                                                |  |                                                | (6,886   | ) |                   |   | 16,340   |  
|                                                                                                                                                                                                                                    |  |                                                |          |   |                   |   |          |  
|Total liabilities and stockholders equity (deficit)                                                                                                                                                                                |  | $                                              | 7,229    |   |                   | $ | 36,726   |  
|                                                                                                                                                                                                                                    |  |                                                |          |   |                   |   |          |  

See notes to condensed consolidated financial statements



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MARINA BIOTECH, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS

(Unaudited)



|                                                                |  |                                       |        |   |                                |   |         |      |  |   |        |   |  |   |         |  
|--------------------------------------------------------------- |  | ------------------------------------- | ------ | - | ------------------------------ | - | ------- | ---- |  | - | ------ | - |  | - | ------- | -
|                                                                |  | Three Months EndedSeptember 30,       |        |   | Nine months endedSeptember 30, |  
|                                                                |  | 2009                                  |        |   | 2010                           |   |         | 2009 |  |   | 2010   |  
|                                                                |  | (In thousands, except per share data) |       
|License and other revenue                                       |  | $                                     | 64     |   |                                | $ | 1,130   |      |  | $ | 14,524 |   |  | $ | 1,507   |  
|                                                                |  |                                       |        |   |                                |   |         |      |  |   |        |   |  |   |         |  
|Operating expenses:                                             |  |                                       |        |   |                                |   |         |      |  |   |        |   |  |   |         |  
|Research and development                                        |  |                                       | 3,319  |   |                                |   | 7,500   |      |  |   | 11,775 |   |  |   | 14,936  |  
|Selling, general and administrative                             |  |                                       | 3,478  |   |                                |   | 3,956   |      |  |   | 7,836  |   |  |   | 8,763   |  
|Restructuring                                                   |  |                                       | 118    |   |                                |   | 460     |      |  |   | 429    |   |  |   | 746     |  
|                                                                |  |                                       |        |   |                                |   |         |      |  |   |        |   |  |   |         |  
|Total operating expenses                                        |  |                                       | 6,915  |   |                                |   | 11,916  |      |  |   | 20,040 |   |  |   | 24,445  |  
|                                                                |  |                                       |        |   |                                |   |         |      |  |   |        |   |  |   |         |  
|Loss from operations                                            |  |                                       | (6,851 | ) |                                |   | (10,786 | )    |  |   | (5,516 | ) |  |   | (22,938 | )
|                                                                |  |                                       |        |   |                                |   |         |      |  |   |        |   |  |   |         |  
|Other income (expense):                                         |  |                                       |        |   |                                |   |         |      |  |   |        |   |  |   |         |  
|Interest income                                                 |  |                                       | 1      |   |                                |   |        |      |  |   | 4      |   |  |   |        |  
|Interest and other expense                                      |  |                                       |       |   |                                |   | (321    | )    |  |   | (311   | ) |  |   | (1,645  | )
|Change in fair value liability for price adjustable warrants    |  |                                       | (160   | ) |                                |   | 2,806   |      |  |   | (2,092 | ) |  |   | 2,691   |  
|Gain on settlement of liabilities, net                          |  |                                       |       |   |                                |   | 29      |      |  |   | 654    |   |  |   | 29      |  
|                                                                |  |                                       |        |   |                                |   |         |      |  |   |        |   |  |   |         |  
|Total other income (expense)                                    |  |                                       | (159   | ) |                                |   | 2,514   |      |  |   | (1,745 | ) |  |   | 1,075   |  
|                                                                |  |                                       |        |   |                                |   |         |      |  |   |        |   |  |   |         |  
|Net loss                                                        |  | $                                     | (7,010 | ) |                                | $ | (8,272  | )    |  | $ | (7,261 | ) |  | $ | (21,863 | )
|                                                                |  |                                       |        |   |                                |   |         |      |  |   |        |   |  |   |         |  
|Loss per common share  basic and diluted:                      |  |                                       |        |   |                                |   |         |      |  |   |        |   |  |   |         |  
|Net loss per common share  basic and diluted                   |  | $                                     | (0.69  | ) |                                | $ | (0.39   | )    |  | $ | (0.80  | ) |  | $ | (1.45   | )
|                                                                |  |                                       |        |   |                                |   |         |      |  |   |        |   |  |   |         |  
|Shares used in computing net loss per share  basic and diluted |  |                                       | 10,178 |   |                                |   | 20,982  |      |  |   | 9,084  |   |  |   | 15,045  |  
|                                                                |  |                                       |        |   |                                |   |         |      |  |   |        |   |  |   |         |  

See notes to condensed consolidated financial statements



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MARINA BIOTECH, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENT OF STOCKHOLDERS EQUITY (DEFICIT)

For the Nine months ended September 30, 2010

(Unaudited)



|                                                                                                                                        |  |                                            |            |   |                    |   |         |                                    |  |   |          |   |  |   |         |  
|--------------------------------------------------------------------------------------------------------------------------------------- |  | ------------------------------------------ | ---------- | - | ------------------ | - | ------- | ---------------------------------- |  | - | -------- | - |  | - | ------- | -
|                                                                                                                                        |  | Common Stock and AdditionalPaid-In Capital |            |   | AccumulatedDeficit |   |         | TotalStockholdersEquity (Deficit) | 
|                                                                                                                                        |  | Shares                                     |            |   | Amount             |   |         |                                   
|                                                                                                                                        |  | (In thousands, except share data)          |           
|Balance December 31, 2009                                                                                                               |  |                                            | 10,201,735 |   |                    | $ | 256,131 |                                    |  | $ | (263,017 | ) |  | $ | (6,886  | )
|Proceeds from the issuance of common shares, net                                                                                        |  |                                            | 1,346,389  |   |                    |   | 804     |                                    |  |   |         |   |  |   | 804     |  
|Shares issued in connection with acquisition of Cequent Pharmaceuticals and termination of notes payable and warrants issued to
Cequent |  |                                            | 9,882,853  |   |                    |   | 30,337  |                                    |  |   |         |   |  |   | 30,337  |  
|Shares issued in connection with license agreement                                                                                      |  |                                            | 1,419,487  |   |                    |   | 3,790   |                                    |  |   |         |   |  |   | 3,790   |  
|Proceeds from the exercise of warrants                                                                                                  |  |                                            | 628,750    |   |                    |   | 2,565   |                                    |  |   |         |   |  |   | 2,565   |  
|Reclassification of fair value liability for price adjustable warrants exercised                                                        |  |                                            |           |   |                    |   | 2,878   |                                    |  |   |         |   |  |   | 2,878   |  
|Reclassification of fair value for price adjustable warrants from liability to equity upon elimination of price adjustment
feature      |  |                                            |           |   |                    |   | 2,805   |                                    |  |   |         |   |  |   | 2,805   |  
|Proceeds from the exercise of options and employee stock purchase plan purchases                                                        |  |                                            | 69,762     |   |                    |   | 140     |                                    |  |   |         |   |  |   | 140     |  
|Shares issued in connection with settlement of liabilities                                                                              |  |                                            | 37,500     |   |                    |   | 126     |                                    |  |   |         |   |  |   | 126     |  
|Compensation related to restricted stock, stock options and employee stock purchase plan, net of forfeitures                            |  |                                            |           |   |                    |   | 1,644   |                                    |  |   |         |   |  |   | 1,644   |  
|Fractional shares redeemed in reverse stock split                                                                                       |  |                                            | (216       | ) |                    |   |        |                                    |  |   |         |   |  |   |        |  
|Net loss                                                                                                                                |  |                                            |           |   |                    |   |        |                                    |  |   | (21,863  | ) |  |   | (21,863 | )
|                                                                                                                                        |  |                                            |            |   |                    |   |         |                                    |  |   |          |   |  |   |         |  
|Balance September 30, 2010                                                                                                              |  |                                            | 23,586,260 |   |                    | $ | 301,220 |                                    |  | $ | (284,880 | ) |  | $ | 16,340  |  
|                                                                                                                                        |  |                                            |            |   |                    |   |         |                                    |  |   |          |   |  |   |         |  

See notes to condensed consolidated financial statements



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MARINA BIOTECH, INC. AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(Unaudited)



|                                                                                                                                       |  |                                |        |   |      |   |         |  
|-------------------------------------------------------------------------------------------------------------------------------------- |  | ------------------------------ | ------ | - | ---- | - | ------- | -
|                                                                                                                                       |  | Nine months endedSeptember 30, |       
|                                                                                                                                       |  | 2009                           |        |   | 2010 |  
|                                                                                                                                       |  | (In thousands)                 |       
|Operating activities:                                                                                                                  |  |                                |        |   |      |   |         |  
|Net loss                                                                                                                               |  | $                              | (7,261 | ) |      | $ | (21,863 | )
|Adjustments to reconcile net loss to net cash provided by operating activities:                                                        |  |                                |        |   |      |   |         |  
|Non-cash compensation related to restricted stock, stock options and employee stock purchase plan                                      |  |                                | 1,276  |   |      |   | 1,644   |  
|Depreciation and amortization                                                                                                          |  |                                | 1,889  |   |      |   | 1,203   |  
|Non-cash in process research and development expense                                                                                  |  |                                |       |   |      |   | 3,790   |  
|Non-cash amortization of discount on notes payable and debt issuance costs                                                             |  |                                |       |   |      |   | 1,578   |  
|Non-cash restructuring charge                                                                                                          |  |                                | 93     |   |      |   | 678     |  
|Accretion of restructuring liability                                                                                                   |  |                                | 148    |   |      |   | 87      |  
|Loss on disposition of property and equipment                                                                                          |  |                                | 317    |   |      |   |        |  
|Net gain on settlement of liabilities                                                                                                  |  |                                | (654   | ) |      |   | (29     | )
|Non-cash change in fair value of price adjustable warrants                                                                             |  |                                | 2,092  |   |      |   | (2,691  | )
|Changes in assets and liabilities, net of amounts relating to acquisition of Cequent:                                                  |  |                                |        |   |      |   |         |  
|Accounts receivable                                                                                                                    |  |                                | (17    | ) |      |   | 50      |  
|Prepaid expenses and other assets                                                                                                      |  |                                | 820    |   |      |   | 311     |  
|Accounts payable                                                                                                                       |  |                                | (332   | ) |      |   | 810     |  
|Deferred revenue                                                                                                                       |  |                                | (718   | ) |      |   |        |  
|Accrued expenses and deferred rent and other liabilities                                                                               |  |                                | 92     |   |      |   | 855     |  
|Accrued restructuring                                                                                                                  |  |                                | (1,543 | ) |      |   | (395    | )
|                                                                                                                                       |  |                                |        |   |      |   |         |  
|Net cash used in operating activities                                                                                                  |  |                                | (3,798 | ) |      |   | (13,972 | )
|                                                                                                                                       |  |                                |        |   |      |   |         |  
|Investing activities:                                                                                                                  |  |                                |        |   |      |   |         |  
|Change in restricted cash                                                                                                              |  |                                | 1,111  |   |      |   | (159    | )
|Purchases of property and equipment                                                                                                    |  |                                | (91    | ) |      |   | (381    | )
|Cash acquired upon acquisition of Cequent Pharmaceuticals                                                                              |  |                                |       |   |      |   | 5,063   |  
|Proceeds from sales of property and equipment                                                                                          |  |                                | 1,159  |   |      |   |        |  
|                                                                                                                                       |  |                                |        |   |      |   |         |  
|Net cash provided by investing activities                                                                                              |  |                                | 2,179  |   |      |   | 4,523   |  
|                                                                                                                                       |  |                                |        |   |      |   |         |  
|Financing activities:                                                                                                                  |  |                                |        |   |      |   |         |  
|Proceeds from sales of common shares and warrants, net                                                                                 |  |                                | 9,332  |   |      |   | 4,943   |  
|Proceeds from exercise of stock options, warrants and employee stock purchase plan purchases                                           |  |                                | 181    |   |      |   | 2,705   |  
|Borrowings on notes payable                                                                                                            |  |                                |       |   |      |   | 3,000   |  
|Payments on notes payable                                                                                                              |  |                                | (5,547 | ) |      |   | (1,000  | )
|                                                                                                                                       |  |                                |        |   |      |   |         |  
|Net cash provided by financing activities                                                                                              |  |                                | 3,966  |   |      |   | 9,648   |  
|                                                                                                                                       |  |                                |        |   |      |   |         |  
|Net increase in cash                                                                                                                   |  |                                | 2,347  |   |      |   | 199     |  
|Cash  beginning of year                                                                                                               |  |                                | 1,084  |   |      |   | 748     |  
|                                                                                                                                       |  |                                |        |   |      |   |         |  
|Cash  end of period                                                                                                                   |  | $                              | 3,431  |   |      | $ | 947     |  
|                                                                                                                                       |  |                                |        |   |      |   |         |  
|                                                                                                                                       |  |                               
|Non-cash financing activities:                                                                                                         |  |                                |        |   |      |   |         |  
|Note payable issued upon cancellation of capital lease obligations                                                                     |  | $                              | 5,128  |   |      | $ |        |  
|                                                                                                                                       |  |                                |        |   |      |   |         |  
|Issuance of stock to acquire Cequent Pharmaceuticals and termination of notes payable, accrued interest and warrants issued to
Cequent |  |                                |       |   |      | $ | 30,337  |  
|                                                                                                                                       |  |                                |        |   |      |   |         |  
|Issuance of common stock to settle liabilities                                                                                         |  | $                              | 1,982  |   |      | $ | 126     |  
|                                                                                                                                       |  |                                |        |   |      |   |         |  
|Supplemental disclosure:                                                                                                               |  |                                |        |   |      |   |         |  
|Cash paid for interest                                                                                                                 |  | $                              | 311    |   |      | $ | 10      |  
|                                                                                                                                       |  |                                |        |   |      |   |         |  

See notes to condensed consolidated financial statements



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MARINA BIOTECH, INC. AND SUBSIDIARIES

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

For the three and nine months ended September 30, 2010 and 2009 (Unaudited)

Note
1  Recent Developments, Business, Going Concern and Summary of Significant Accounting Policies

Recent
Developments

On July 21, 2010, we consummated the acquisition of Cequent Pharmaceuticals, Inc.
(Cequent), a privately-held company engaged in the development of novel products to deliver RNAi-based therapeutics. As further described in Note 2, we completed the transaction pursuant to terms and conditions of an Agreement and Plan
of Merger, dated as of March 31, 2010, by and among our company, Cequent, Calais Acquisition Corp. and a representative of the stockholders of Cequent (the Merger Agreement) by the issuance of approximately 9.9 million shares
of our common stock in exchange for all outstanding equity securities of Cequent. Of the total shares issued, approximately 1.1 million of these shares were considered issued in exchange for the termination of the amounts loaned, including
accrued interest, to us by Cequent and the warrants issued by us to Cequent under the Loan Agreement and Warrant Agreement. We also assumed all of the stock options and warrants of Cequent outstanding as of July 21, 2010. As a result of the
merger, Cequent is now our wholly owned subsidiary. As approved by vote of our stockholders, our company name changed to Marina Biotech, Inc.

Additionally, after the close of trading on July 21, 2010, we effected a one-for-four reverse stock split of our outstanding common stock. The accompanying unaudited condensed consolidated financial
statements and notes to the unaudited condensed consolidated financial statements give retroactive effect to the stock split for all periods presented.

Business

We are a biotechnology company focused on the discovery,
development and commercialization of pharmaceuticals based on RNA interference (RNAi). Our goal is to be the leader in RNAi therapeutics and improve human health through the development of RNAi-based compounds that provide superior
therapeutic options for patients. Our team of approximately 45 scientists brings expertise in the discovery, evaluation and optimization of small interfering RNAs (siRNAs) as well as siRNA delivery. We have the requisite experience in
the areas of RNAi, molecular and cellular biology, microbiology, amino acid, oligonucleotide and peptide chemistry, pharmacology, bioinformatics, as well as regulatory affairs and clinical development necessary to discover and develop tailored
RNAi-based compounds designed to elicit specific therapeutic effects on a target-by-target basis. Our infrastructure provides for pre-clinical scale manufacturing of both siRNAs, short hairpin RNAs (shRNAs) and delivery materials, the comprehensive
analysis and optimization of these compounds both individually and as drug candidates, the filing of Investigational New Drug Applications and clinical operations.

We have multiple proprietary RNAi drug discovery platforms with the capability to deliver RNAi-based therapeutics via
systemic, local and oral administration. In addition to our own, internally developed technologies, we strategically in-license and further develop RNAi- and delivery-related technologies, forming multiple drug discovery platforms. We are currently
employing two proven RNAi platforms to down-regulate the expression of specific proteins that cause disease: (i) TauRNAi which is a combination of our proprietary UsiRNA (small interfering RNA [siRNA] modified with our Unlocked Nucleobase
Analogs [UNA] chemistry) technology and our novel dialkylated amino acid-based liposome (DiLA2) delivery system; and (ii) TransKingdom RNAi, or tkRNAi, which is an expressed RNA in a bacterial delivery system. These approaches give us the flexibility to optimize oral, systemic and local
delivery of RNAi-based therapies to target a wide range of human diseases based on the unique characteristics of the cells and organs involved in each disease. With our recent acquisition of Cequent Pharmaceuticals, we expanded our oncology pipeline
with a product for Familial Adenomatous Polyposis (FAP)  a genetic disorder that is a precursor to colon cancer  that will soon begin Phase 1 clinical testing under an Investigational New Drug application (IND) filed with the U.S. Food
and Drug Administration (FDA). In order to protect our innovations, which encompass a broad platform of both RNAi constructs and delivery technologies, as well as the drug products that may emerge from that platform, we aggressively continue to
build upon our extensive and enabling intellectual property (IP) estate.

Our business
strategy is two-fold. First, we strive to establish collaborations and strategic partnerships with pharmaceutical and biotechnology companies in the area of RNAi-based therapeutics to: (1) generate revenue and non-dilutive financing;
(2) gain access to technical resources; and (3) further validate our drug discovery platforms. Secondly, we expect to advance our own pipeline of RNAi-based therapeutics as a foundation upon which to improve all aspects of our drug
discovery platform and to have the opportunity to commercialize drug therapies. Our pipeline is focused in oncology and specifically in FAP, bladder cancer and liver cancer. With respect to collaborations and strategic partnerships, we are currently
focused on our tauRNAi platform (proprietary UsiRNA constructs and DiLA2delivery technology) as well as peptide delivery technologies. Collaborations and strategic partnerships are expected to range from early partnering efforts to licensing agreements to the development of
therapeutic candidates. We expect to collaborate and establish strategic partnerships with companies who can take a drug candidate through to product



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commercialization by utilizing their late stage clinical development, regulatory, marketing and sales capabilities. We expect to structure certain of our collaborative agreements to receive
upfront non-refundable payments, research and development funding, milestone payments and royalties on commercial sales of products.

We believe we have established ourselves as a leading RNAi-based therapeutics company by leveraging our broad and proven expertise in RNAi science and delivery to create multiple industry-leading RNAi
drug discovery platforms, which are protected by a strong IP position and validated through licensing agreements with two large international pharmaceutical companies and an IND filed with the FDA.

Going Concern

The accompanying condensed consolidated financial statements have been prepared on the basis that we will continue as a going concern, which contemplates realization of assets and the satisfaction of
liabilities in the normal course of business. As of September 30, 2010, we had an accumulated deficit of approximately $284.9 million and expect to incur losses in the future as we continue our research and development (R&D)
activities. In 2008, we suspended all research and clinical development of our intranasal programs and, as of September 30, 2008, incurred a restructuring charge to exit a facility which was used primarily for our intranasal activities. As of
September 30, 2008, our accumulated deficit, which was primarily related to clinical development of our intranasal programs, was approximately $241.8 million. Our operating expenses, primarily R&D in connection with the further development
of our RNAi programs, will consume the majority of our cash resources and will require additional funding. We have funded our losses primarily through the sale of common stock and warrants in the public markets and private placements, revenue
provided by our collaboration partners, and, to a lesser extent, equipment financing facilities and loans.

At
September 30, 2010, we had a working capital deficit (current assets less current liabilities) of approximately $4.3 million and approximately $2.1 million in cash, including approximately $1.2 million in restricted cash. In November 2010, we
raised proceeds of approximately $3.3 million in a registered direct offering of 1,795,000 shares of common stock and subscription investment units to purchase up to 2,423,550 shares of common stock. In addition, in November 2010, we received
notification that we had been awarded three grants totaling approximately $0.7 million under the Qualified Therapeutic Discovery Grant funds under section 48D of the Internal Revenue Code. We believe that our current resources will be sufficient to
fund our planned operations into the first quarter of 2011.

We plan to continue to work with large pharmaceutical companies
regarding research and development collaboration agreements or investments, and to pursue public and private sources of financing to raise cash. However, there can be no assurance that we will be successful in such endeavors.

In August 2010, we filed a universal shelf registration statement with the Securities and Exchange Commission (SEC),
which was declared effective by the SEC in September 2010. Under the shelf registration statement, we could issue up to $50.0 million of our common stock, preferred stock, debt securities, warrants to purchase any of the foregoing securities, and/or
rights to purchase shares of our common or preferred stock, either individually or in units comprised of any of such securities. The market value and the volatility of our stock price, as well as general market conditions, could make it difficult
for us to complete a financing transaction on favorable terms, or at all. Any financing we obtain may further dilute the ownership interest of our current stockholders. If we are unable to obtain additional cash when required, we could modify, delay
or abandon some or all of our programs. These factors, among others, raise substantial doubt about our ability to continue as a going concern. The accompanying condensed consolidated financial statements do not include any adjustments that may
result from the outcome of this uncertainty. The Report of Independent Registered Public Accounting Firm included in our Annual Report on Form 10-K for the year ended December 31, 2009 states that these conditions, among others, raise
substantial doubt about our ability to continue as a going concern.

Basis of Preparation and Summary of Significant
Accounting Policies

Basis of Preparation The accompanying unaudited condensed consolidated financial
statements have been prepared in accordance with accounting principles generally accepted in the United States of America for interim financial information and in accordance with the instructions to Form 10-Q and Article 10 of Regulation S-X.
Accordingly, they do not include all of the information and note disclosures required by U.S. generally accepted accounting principles for complete financial statements. The accompanying unaudited financial information should be read in conjunction
with the audited consolidated financial statements, including the notes thereto, as of and for the year ended December 31, 2009, included in our 2009 Annual Report on Form 10-K filed with the SEC. The information furnished in this report
reflects all adjustments (consisting of normal recurring adjustments), which are, in the opinion of management, necessary for a fair presentation of our financial position, results of operations and cash flows for each period presented. The results
of operations for the interim period ended September 30, 2010 are not necessarily indicative of the results for the year ending December 31, 2010 or for any future period.



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Use of Estimates The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires our management to make estimates and assumptions that affect the reported amounts of assets and
liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements, and reported amounts of revenues and expenses during the reporting periods. Estimates having relatively higher significance include revenue
recognition, research and development costs, stock-based compensation, valuation of warrants, valuation and estimated lives of identifiable intangible assets , impairment of long-lived assets, estimated accrued restructuring charges and income
taxes. Actual results could differ from those estimates.

Restricted Cash  Amounts pledged as collateral
underlying letters of credit for facility lease deposits are classified as restricted cash. Changes in restricted cash have been presented as investing activities in the consolidated statements of cash flows.

Fair Value of Financial Instruments  We consider the fair value of cash, restricted cash, accounts receivable, accounts
payable and accrued liabilities to not be materially different from their carrying value. These financial instruments have short-term maturities. The carrying value of notes payable approximated fair value as interest rates represented current
market rates.

We follow authoritative guidance with respect to fair value reporting issued by the Financial Accounting
Standards Board (FASB) for financial assets and liabilities, which defines fair value, provides guidance for measuring fair value and requires certain disclosures. The guidance establishes a fair value hierarchy that prioritizes the
inputs to valuation techniques used to measure fair value into three broad levels. The following is a brief description of those three levels:

Level 1: Observable inputs such as quoted prices (unadjusted) in active markets for identical assets or liabilities.

Level 2: Inputs other than quoted prices that are observable for the asset or liability, either directly or indirectly. These include quoted prices for similar assets or liabilities in active markets
and quoted prices for identical or similar assets or liabilities in markets that are not active.

Level 3: Unobservable
inputs in which little or no market data exists, therefore developed using estimates and assumptions developed by us, which reflect those that a market participant would use.

All of our financial assets subject to fair value measurement are valued determined by Level 1 inputs. We currently measure and report at fair value the liability for price adjustable warrants using the
Black-Scholes-Merton valuation model, a Level 3 input. The following table summarizes our financial liabilities measured at fair value on a recurring basis as of September 30, 2010 (in thousands):



|                                                   |  |                             |       |  |                                                           |  |   |                                          |  |  |                                      |  |  |   |       | 
|-------------------------------------------------- |  | --------------------------- | ----- |  | --------------------------------------------------------- |  | - | ---------------------------------------- |  |  | ------------------------------------ |  |  | - | ----- | 
|                                                   |  | Balance atSeptember 30,2010 |       |  | Level 1Quoted prices inactive markets foridentical assets |  |   | Level 2Significant otherobservableinputs |  |  | Level 3Significantunobservableinputs | 
|Liabilities:                                       |  |                             |       |  |                                                           |  |   |                                          |  |  |                                      |  |  |   |       | 
|Fair value liability for price adjustable warrants |  | $                           | 3,500 |  |                                                           |  |  |                                          |  |  |                                     |  |  | $ | 3,500 | 
|                                                   |  |                             |       |  |                                                           |  |   |                                          |  |  |                                      |  |  |   |       | 
|Total financial liabilities at fair value          |  | $                           | 3,500 |  |                                                           |  |  |                                          |  |  |                                     |  |  | $ | 3,500 | 
|                                                   |  |                             |       |  |                                                           |  |   |                                          |  |  |                                      |  |  |   |       | 

The following presents activity of the fair value liability of price adjustable warrants determined by Level
3 inputs (in thousands, except per share data):



|                                                           |  |                                                               |        |   |                                              |   |      |            |  |   |            |  |  |                          |     |   |                |  |     |  |  |  |     |  
|---------------------------------------------------------- |  | ------------------------------------------------------------- | ------ | - | -------------------------------------------- | - | ---- | ---------- |  | - | ---------- |  |  | ------------------------ | --- | - | -------------- |  | --- |  |  |  | --- | -
|                                                           |  |                                                               |        |   | Weighted average as of each measurement date |  
|                                                           |  | Fair valueliability for priceadjustablewarrants
(inthousands) |        |   | ExercisePrice                                |   |      | StockPrice |  |   | Volatility |  |  | Contractual lifein years |     |   | Risk free rate | 
|Balance at December 31, 2009                               |  | $                                                             | 7,243  |   |                                              | $ | 6.16 |            |  | $ | 3.24       |  |  |                          | 116 | % |                |  | 5.3 |  |  |  | 2.8 | %
|Reclassification upon exercise of warrants                 |  |                                                               | (2,878 | ) |                                              | $ | 4.08 |            |  | $ | 5.56       |  |  |                          | 110 | % |                |  | 4.9 |  |  |  | 2.6 | %
|Fair value of warrants issued                              |  |                                                               | 5,598  |   |                                              | $ | 4.20 |            |  | $ | 5.11       |  |  |                          | 118 | % |                |  | 5.0 |  |  |  | 2.4 | %
|Reclassification to equity                                 |  |                                                               | (2,805 | ) |                                              | $ | 8.68 |            |  | $ | 2.98       |  |  |                          | 118 | % |                |  | 5.2 |  |  |  | 1.6 | %
|Fair value of warrants terminated upon Cequent acquisition |  |                                                               | (995   | ) |                                              | $ | 4.60 |            |  | $ | 2.98       |  |  |                          | 122 | % |                |  | 4.9 |  |  |  | 1.7 | %
|Fair value of warrants assumed in Cequent acquisition      |  |                                                               | 28     |   |                                              | $ | 1.75 |            |  | $ | 2.98       |  |  |                          | 102 | % |                |  | 8.2 |  |  |  | 2.6 | %
|Change in fair value included in statement of operations   |  |                                                               | (2,691 | ) |                                              |   |     |            |  |   |           |  |  |                          |    |   |                |  |    |  |  |  |    |  
|                                                           |  |                                                               |        |   |                                              |   |      |            |  |   |            |  |  |                          |     |   |                |  |     |  |  |  |     |  
|Balance at September 30, 2010                              |  | $                                                             | 3,500  |   |                                              | $ | 5.94 |            |  | $ | 2.39       |  |  |                          | 131 | % |                |  | 4.3 |  |  |  | 1.0 | %
|                                                           |  |                                                               |        |   |                                              |   |      |            |  |   |            |  |  |                          |     |   |                |  |     |  |  |  |     |  



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Long-lived
assets  Long-lived assets include property, plant and equipment, less accumulated depreciation. These assets are recorded at our original cost and are increased by the cost of any significant improvements after purchase. Property, plant
and equipment assets, other than land and construction in progress, are depreciated evenly over the estimated useful life of the individual assets. Depreciation begins when the asset is ready for its intended use. For tax purposes, accelerated
depreciation methods are used as allowed by tax laws.

Identifiable intangible assets Intangible assets
associated with in-process research and development (IPR&D) projects acquired in business combinations are not amortized until approval is obtained in a major market, typically either the U.S. or the European Union (EU), or in a
series of other countries, subject to certain specified conditions and management judgment. The useful life of an amortizing asset generally is determined by identifying the period in which substantially all of the cash flows are expected to be
generated.

GoodwillGoodwill represents the excess of the consideration transferred for an acquired business
over the estimated values of its net assets. Goodwill is not amortized.

We review all of our long-lived assets for impairment
indicators throughout the year and we perform detailed testing whenever impairment indicators are present. In addition, we perform detailed impairment testing for goodwill and indefinite-lived intangible assets at least annually. When necessary, we
record charges for impairments. Specifically:



| |  |  | For finite-lived intangible assets, such as developed technology rights, and for other long-lived assets, such as property, plant and equipment,
whenever impairment indicators are present, we perform a review for impairment. We calculate the undiscounted value of the projected cash flows associated with the asset, or asset group, and compare this estimated amount to the carrying amount. If
the carrying amount is found to be greater, we record an impairment loss for the excess of book value over fair value. In addition, in all cases of an impairment review, we re-evaluate the remaining useful lives of the assets and modify them, as
appropriate.
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | For indefinite-lived intangible assets, such as IPR&D assets, each year and whenever impairment indicators are present, we determine the fair value
of the asset and record an impairment loss for the excess of book value over fair value, if any. In addition, in all cases of an impairment review other than for IPR&D assets, we reevaluate whether continuing to characterize the asset as
indefinite-lived is appropriate.
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | For goodwill, annually and whenever impairment indicators are present, we calculate the fair value of each reporting unit and compare the fair value to
its book value. If the carrying amount is found to be greater, we then determine the implied fair value of goodwill by subtracting the fair value of all the identifiable net assets other than goodwill from the fair value of the reporting unit and
record an impairment loss for the excess, if any, of book value of goodwill over the implied fair value.
| | - |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Accrued Restructuring We ceased using one of our two leased facilities in Bothell, Washington (the exited
facility) in 2008. We recorded an accrued liability for remaining lease termination costs at fair value, based on the remaining payments due under the lease and other costs, reduced by estimated sublease rental income that could be reasonably
obtained from the property, and discounted using a credit-adjusted risk-free interest rate. We based our estimated future payments on current rental rates available in the Bothell real estate market, and our evaluation of the ability to sublease the
facility. Accrued restructuring, and in particular those charges associated with exiting a facility, are based upon managements estimates of future payments. These estimates significantly impact the accrual and actual results may differ from
our estimates. We review these estimates at least quarterly and when there are changes in facts or circumstances, and adjust our accrual if necessary. For a further discussion of our restructuring charges, see Note 4  Accrued Restructuring.



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Net Loss Per Common
Share  Basic and diluted net loss per common share is computed by dividing the net loss by the weighted average number of common shares outstanding during the period. Diluted net loss per share excludes the effect of common stock
equivalents (stock options, unvested restricted stock and warrants) since such inclusion in the computation would be anti-dilutive. The following numbers of shares have been excluded from net loss per share computations for periods ended
September 30:



|                          |  |      |           |  |      |  |           | 
|------------------------- |  | ---- | --------- |  | ---- |  | --------- | 
|                          |  | 2009 |           |  | 2010 | 
|Stock options outstanding |  |      | 2,081,807 |  |      |  | 2,634,095 | 
|Unvested restricted stock |  |      | 9,869     |  |      |  | 1,132     | 
|Warrants                  |  |      | 2,504,947 |  |      |  | 3,143,941 | 
|                          |  |      |           |  |      |  |           | 
|Total                     |  |      | 4,596,623 |  |      |  | 5,779,168 | 
|                          |  |      |           |  |      |  |           | 

Reclassifications Certain reclassifications have been made to prior years financial
statements to conform to current year presentations. Previously, we presented sales and marketing expenses separately from general and administrative expenses. These expenses were combined into selling, general and administrative expenses in 2010.
In addition, product revenue and government grant revenue, which were previously presented separately, were combined with license and other revenue in 2010. The reclassifications had no effect on stockholders deficit, net loss, or net change
in cash.

Note 2  Acquisition of Cequent Pharmaceuticals, Inc.

On July 21, 2010, the acquisition date, we acquired Cequent Pharmaceuticals, Inc. (Cequent), a privately-held company
engaged in development of novel products to deliver RNAi-based therapeutics. We completed the transaction pursuant to terms and conditions of an Agreement and Plan of Merger, dated as of March 31, 2010, by and among our Company, Calais
Acquisition Corp., our wholly-owned subsidiary (Merger-sub), Cequent and a representative of the stockholders of Cequent (the Merger Agreement) by issuance of 9,882,853 shares of our common stock in exchange for all
outstanding equity securities of Cequent. Of the total shares issued, 1,110,440 of these shares were considered issued in exchange for the termination of the amounts loaned, including accrued interest, to us by Cequent and the warrants issued by us
to Cequent under the Loan Agreement and Warrant Agreement. We also assumed all of the stock options of Cequent outstanding as of the acquisition date.

On the acquisition date, Merger-sub merged with and into Cequent, and Cequent is now our wholly-owned subsidiary. The merger was accounted for as a business combination utilizing the acquisition method of
accounting. Under the acquisition method, the assets acquired and liabilities assumed were added to ours and recorded as of the acquisition date, primarily at their respective fair values. Our financial statements and reported results of operations
issued after the merger reflect these values, but have not been retroactively restated to reflect the historical financial position or results of operations of Cequent. The results of operations of Cequent since July 21, 2010 have been included
in our Condensed Consolidated Statements of Operations.

As of September 30, 2010, acquisition accounting is preliminary
as our management has not yet obtained all of the information that it has arranged to obtain and that is known to be available. We are still in process of obtaining additional information needed to finalize our valuation of the identifiable
intangible assets and of matters pertaining to income taxes. The income tax matters include obtaining the Cequent pre-acquisition 2010 tax return as well as performing studies to calculate the annual limitations on acquired net operating losses and
tax credit carryforwards under the change in control provisions of Sections 382 and 383 of the Internal Revenue Code. As of September 30, 2010 a valuation allowance has been recorded in purchase accounting against all acquired deferred tax
assets. Depending on the results of the studies, the deferred tax asset valuation allowance recorded in purchase accounting could be substantially reduced or eliminated which would reduce the amount of goodwill recognized in the acquisition.

Based upon the outstanding shares of our common stock and assuming exercise of all of our outstanding exercisable and
non-exercisable warrants and stock options, and assuming the exercise or conversion of all of Cequents exercisable and non-exercisable warrants, stock options and preferred stock, immediately following the completion of the merger, our
security holders owned approximately 62% of the combined companys common stock and Cequent security holders owned approximately 38%. In addition to considering these relative security holdings, management also considered the composition of the
Board of Directors, the structure and members of the executive management team, the size of the combining entities and the terms of the exchange of equity interests in determining the accounting acquirer. Based on the weight of these factors, it was
concluded that Marina Biotech was the accounting acquirer.

Consideration transferred Consideration transferred
attributable to the acquisition of Cequent was approximately $27.0 million. Consideration transferred is comprised of approximately $26.1 million relating to shares we issued, which were valued at the acquisition date closing market price of $2.98
per share, and approximately $0.9 million relating to Cequent stock options we assumed. The fair value of stock options assumed was calculated using a Black-Scholes-Merton valuation model with the following assumptions: market price of $2.98 per
share, volatility of 120%, expected term of 5 years; risk-free interest rate of 1.7% and no



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dividend yield. We included the fair value of vested stock options assumed of approximately $0.9 million in the consideration transferred. The estimated fair value of unvested stock options we
assumed of approximately $0.3 million was not included in the consideration transferred and will be recognized as stock-based compensation expense over the remaining future vesting period of the stock options.

As further described in Note 5  Notes Payable, in connection with the merger and pursuant to the terms of a separate Loan
Agreement, our notes payable to Cequent in the aggregate principal amount of $3.0 million and accrued interest of approximately $45,000 were forgiven and warrants to purchase our common stock held by Cequent terminated. A portion of consideration
transferred totaling approximately $3.3 million is deemed attributable to repayment of these notes payable and termination of warrants.

Allocation of purchase consideration Accounting guidance requires that most assets acquired and liabilities assumed be recognized at their fair values, as determined in accordance with ASC
820, Fair Value Measurements, as of the acquisition date. Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. This
is an exit price concept for the valuation of the asset or liability. Market participants are assumed to be buyers and sellers in the principal (or the most advantageous) market for the asset or liability. Fair value measurements for an asset assume
the highest and best use by these market participants. As a result of these standards, we may be required to value assets at fair value measures that do not reflect our intended use of those assets. Many of these fair value measurements can be
highly subjective and it is also possible that other professionals, applying reasonable judgment to the same facts and circumstances, could develop and support a range of alternative estimated amounts.

The following summarizes the assets acquired and liabilities assumed at July 21, 2010 (in thousands):



|                                         |  |   |        |  
|---------------------------------------- |  | - | ------ | -
|Cash and cash equivalents                |  | $ | 5,063  |  
|Prepaid and other assets                 |  |   | 566    |  
|Property, plant and equipment            |  |   | 302    |  
|Intangible assetsIPR&D                  |  |   | 23,100 |  
|Goodwill                                 |  |   | 6,517  |  
|Accounts payable and accrued liabilities |  |   | (437   | )
|Deferred tax liabilities                 |  |   | (8,085 | )
|                                         |  |   |        |  
|Total consideration transferred          |  | $ | 27,026 |  
|                                         |  |   |        |  

Tangible assets Tangible assets acquired include cash, property and equipment, and prepaid
expenses and other assets. Cequent property and equipment is comprised primarily of lab and office equipment. Our management has determined that the fair value reasonably approximates the Cequent net book value.

Identifiable intangible assetsA substantial portion of the assets acquired have been allocated to identifiable intangible
assets related to in-process research and development (IPR&D) projects identified by management. Our management has estimated acquisition-date fair values of these intangible assets. These identified intangible assets have been
valued based on a number of factors which have been updated since our initial preliminary acquisition accounting, but which has not yet been finalized. Utilizing the income approach, a discounted cash flow model using forecasted operating results
related to the identified intangible assets, fair value was $19.3 million for Familial Adenomatous Polyposis and $3.8 million for Transkingdom RNAI, a total of $23.1 million. We believe that the information gathered is adequate to perform
preliminary fair value measurements of the primary intangible assets. Intangible assets recognized in this preliminary acquisition accounting for the merger may change as management obtains all information that it has arranged to obtain and that is
known to be available, and adjusts the allocation of purchase price as necessary.

We estimated the fair value of these
intangible assets using a present value discount rate of 23%, which is based on the estimated weighted-average cost of capital for companies with profiles substantially similar to ours. We compensated for the differing phases of development of each
project by probability-adjusting our estimation of the expected future cash flows associated with each project. We then determined the present value of the expected future cash flows using the discount rate of 23%. The projected cash flows from the
projects were based on key assumptions such as estimates of revenues and operating profits related to the projects considering their stages of development; the time and resources needed to complete development and receive approval; the life of the
potential commercialized products and associated risks, including the inherent difficulties and uncertainties in development such as obtaining marketing approval from the U.S. Food and Drug Administration and other regulatory agencies; and risks
related to the viability of and potential alternative treatments in any future target markets.

Accounting guidance requires
that the fair value of IPR&D acquired in a business combination be recorded on the balance sheet regardless of the likelihood of success as of the acquisition date. Intangible assets related to IPR&D projects are considered to be



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indefinite-lived until completion or abandonment of the related project. During the period the assets are considered indefinite-lived, they will not be amortized but will be tested for impairment
on an annual basis and between annual tests if we become aware of any events occurring or changes in circumstances that would indicate a reduction in the fair value of the projects below their respective carrying amounts. If and when it were
determined that identified intangible assets were impaired, an impairment charge would be recorded then. If and when development is complete, which generally occurs if and when regulatory approval to market a product is obtained, the associated
assets would be deemed finite-lived and would then be amortized based on their respective estimated useful lives at that date.

Goodwill Goodwill represents the excess of consideration transferred over the fair values assigned to the assets acquired
and liabilities assumed. Management believes that the goodwill mainly represents the synergies and economies of scale expected from combining the operations of Cequent and Marina Biotech. None of the goodwill is expected to be deductible for income
tax purposes. We recorded the goodwill as an intangible asset as of the acquisition date. Goodwill is tested for impairment on an annual basis and between annual tests if we become aware of any events occurring or changes in circumstances that would
indicate a reduction in the fair value of the goodwill below its carrying amount. If and when it were determined that goodwill was impaired, an impairment charge would be recorded then. Goodwill recognized in this preliminary acquisition accounting
for the merger may change as management obtains all information that it has arranged to obtain and that is known to be available, and adjusts the allocation of purchase price accordingly.

Liabilities assumed Cequent liabilities at the acquisition date consist of accounts payable, accrued liabilities and fair
value of price adjustable warrants. Accounts payable and accrued liabilities are expected to be paid in normal course and considered to represent fair value.

Deferred Taxes The merger was structured as non-taxable and intangible assets tax basis is nil. This resulted in recording a deferred tax liability of approximately $8.1 million related to
the acquired intangible assets. Management estimated that the tax basis of acquired tangible assets and assumed liabilities approximated book basis. In accordance with accounting guidance, deferred taxes are not recorded for basis differences
relating to goodwill that is not deductible for tax purposes.

Acquired deferred tax assets were primarily related to federal
and state net operating loss and tax credit carryforwards. We have preliminarily determined that it cannot be concluded that it is more likely than not that we will realize the benefit from deferred tax assets related to these carryforwards, and as
a result, a full valuation allowance was recorded related to those deferred tax assets. This determination may change when we complete our change in control analysis and obtain other information we have arranged to obtain.

Acquisition-Related Transaction CostsWe recognized approximately $0.5 million and $1.4 million of acquisition-related
transaction costs in selling, general and administrative expenses in the three and nine months ended September 30, 2010, which consisted primarily of investment banker fees, legal and accounting costs related to the acquisition.

Pro Forma Information The following unaudited pro forma information presents the combined revenues and net loss of Marina
Biotech and Cequent for the three and nine months ended September 30, 2010 and 2009 as if the acquisition of Cequent had occurred on January 1, 2009 or January 1, 2010. This pro forma information is preliminary to the extent that the
acquisition accounting is preliminary as discussed above. This pro forma information does not include any adjustments related to restructuring or one-time charges, potential profit improvements, potential cost savings or other costs which may result
from combining the operations. Accordingly, these unaudited pro forma revenues and net loss are presented for illustrative purposes and are not intended to represent or be indicative of the actual results of operations of the combined company that
would have been achieved had the acquisition occurred on January 1, 2009 nor are they intended to represent or be indicative of future results of operations. The unaudited pro forma results of operations information is as follows (in
thousands):



|         |  |                                  |        |   |                                 |   |        |      |  |   |         |   |  |   |         |  
|-------- |  | -------------------------------- | ------ | - | ------------------------------- | - | ------ | ---- |  | - | ------- | - |  | - | ------- | -
|         |  | Three Months Ended September 30, |        |   | Nine Months Ended September 30, |  
|         |  | 2009                             |        |   | 2010                            |   |        | 2009 |  |   | 2010    |  
|Revenue  |  | $                                | 209    |   |                                 | $ | 1,166  |      |  | $ | 14,951  |   |  | $ | 1,835   |  
|         |  |                                  |        |   |                                 |   |        |      |  |   |         |   |  |   |         |  
|Net loss |  | $                                | (8,129 | ) |                                 | $ | (8,786 | )    |  | $ | (11,229 | ) |  | $ | (24,353 | )
|         |  |                                  |        |   |                                 |   |        |      |  |   |         |   |  |   |         |  

Note 3  Concentration of Credit Risk and Significant Customers

We operate in an industry that is highly regulated, competitive and rapidly changing and involves numerous risks and uncertainties.
Significant technological and/or regulatory changes, the emergence of competitive products and other factors could negatively impact our consolidated financial position or results of operations.



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We have been dependent
on our collaborative agreements with a limited number of third parties for a substantial portion of our revenue, and our discovery and development activities may be delayed or reduced if we do not maintain successful collaborative arrangements. We
had revenue from customers, as a percentage of total revenue, as follows:



|                       |  |                                  |     |   |                                 |  |     |      |  |  |      |   |  |  |     |  
|---------------------- |  | -------------------------------- | --- | - | ------------------------------- |  | --- | ---- |  |  | ---- | - |  |  | --- | -
|                       |  | Three Months Ended September 30, |     |   | Nine months ended September 30, | 
|                       |  | 2009                             |     |   | 2010                            |  |     | 2009 |  |  | 2010 |  
|Cypress Bioscience     |  |                                  |    |   |                                 |  | 67  | %    |  |  |     |   |  |  | 50  | %
|Par Pharmaceuticals    |  |                                  | 95  | % |                                 |  | 12  | %    |  |  | 1    | % |  |  | 22  | %
|Undisclosed Partner #1 |  |                                  |    |   |                                 |  |    |      |  |  |     |   |  |  | 3   | %
|Undisclosed Partner #2 |  |                                  |    |   |                                 |  |    |      |  |  |     |   |  |  | 2   | %
|Pfizer                 |  |                                  |    |   |                                 |  | 2   | %    |  |  |     |   |  |  | 3   | %
|Novartis               |  |                                  |    |   |                                 |  |    |      |  |  | 52   | % |  |  |    |  
|Roche                  |  |                                  |    |   |                                 |  |    |      |  |  | 34   | % |  |  |    |  
|Amylin                 |  |                                  |    |   |                                 |  |    |      |  |  | 7    | % |  |  |    |  
|QOL Medical, LLC       |  |                                  |    |   |                                 |  |    |      |  |  | 6    | % |  |  |    |  
|Other                  |  |                                  | 5   | % |                                 |  | 19  | %    |  |  |     |   |  |  | 20  | %
|                       |  |                                  |     |   |                                 |  |     |      |  |  |      |   |  |  |     |  
|Total                  |  |                                  | 100 | % |                                 |  | 100 | %    |  |  | 100  | % |  |  | 100 | %
|                       |  |                                  |     |   |                                 |  |     |      |  |  |      |   |  |  |     |  

Note 4  Accrued Restructuring

Since late 2007, we have restructured our operations to focus on our RNAi programs. As part of the restructuring, in 2007 and 2008 we reduced workforce by eliminating positions related to our former
intranasal delivery business and took other steps to reduce our cash expenditures. In addition, during 2008, we exited one of our facilities and recorded a restructuring liability, representing estimated future payments due under the lease and other
costs and discounted using a credit-adjusted risk-free interest rate. In 2009, we entered into an amendment of our lease for the exited facility, which reduced our lease obligations by approximately $1.9 million, and we issued 375,000 shares of
our common stock to the landlord. In addition, in 2009, the landlord leased approximately 37% of the exited facility, and in connection therewith, we entered into an amendment to our lease agreement which, among other things, terminated the lease
with respect to this portion of the premises.

Accrued restructuring, and in particular those charges associated with exiting
a facility, are subject to managements assumptions and estimates, as well as changes in facts and circumstances. We currently measure and report at fair value the accrued restructuring liability using Level 3 inputs, which are inputs for which
little or no market data exists, are developed using estimates and assumptions developed by us, and reflect those that a market participant would use. In addition to the interest rate used, which is currently 23%, the assumptions as to estimated
future payments significantly impact the accrual and actual results may differ from our estimates. As of September 30, 2010, the balance of our accrued restructuring liability is approximately $1.1 million. In the three and nine months ended
September 30, 2010 we recorded restructuring charges including accretion of the accrued restructuring liability and other facility-related costs in the amounts of $0.5 million and $0.7 million, respectively. In the three and nine months ended
September 30, 2009 we recorded restructuring charges representing accretion of the accrued restructuring liability and other facility-related costs in the amounts of $54,000 and $122,000, respectively. We expect to incur approximately $0.1
million in additional accretion expense through the expiration of this lease in 2016.

Note 5  Notes Payable

In January 2009, we entered into a Loan and Security Agreement (the Loan Agreement) with General Electric Capital Corporation
(GECC) pursuant to which GECC converted the balance due under capital lease obligations, along with a lease termination fee and amounts payable for property taxes, to a promissory note in the amount of approximately $5.5 million at an
interest rate of 12.3% per year. As a result of the capital lease termination and issuance of the note payable, we recorded a lease termination fee of approximately $0.2 million during the first quarter of 2009, which was presented as a
component of gain on settlement of liabilities, net. The loan was paid in full in June 2009 and the Loan Agreement terminated.

In December 2009 we entered into a Note and Warrant Purchase Agreement (the Note Agreement), pursuant to which we received $1
million cash and issued 12% secured promissory notes due February 1, 2010 in the aggregate principal amount of $1.0 million ( the Notes) and warrants to purchase up to 268,819 shares of our common stock. The warrants have an
exercise price of $4.00 per share, which is subject to downward price adjustment until December 31, 2010, and are exercisable for five years. The Note Agreement contained certain customary representations, warranties and covenants, including
that we would not declare or pay dividends. The Notes were collateralized by substantially all of our assets. In January 2010, we received net proceeds of approximately $4.9 million in a registered direct offering of 1,346,389 shares of common stock
and 875,155 warrants. In January 2010, we paid the principal amount of the Notes and accrued interest in full, the Note Agreement terminated, and the collateral was released.



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In connection with the
Note Agreement, we recorded debt issuance costs of approximately $0.1 million which were amortized as interest and other expense over the term of the notes. In addition, we recorded a discount on notes payable of approximately $0.9 million which
represents the fair value of the warrants issued in connection with the notes payable, as determined utilizing the Black-Scholes-Merton valuation model with assumptions of expected life of five years, volatility rate of 117%, risk-free interest rate
of 2.5% and dividend rate of nil. The discount on notes payable was reported net of related notes payable and amortized as interest expense over the term of the notes. The estimated fair value of the warrants was recorded as an increase in fair
value liability for price adjustable warrants, which is revalued each balance sheet date.

Concurrent with the execution of
the Merger Agreement, we entered into a Loan Agreement with Cequent pursuant to which, among other things, Cequent extended to us loans in the aggregate principal amount of $3.0 million to fund our operations prior to the merger. In each of April,
May and June 2010, Cequent loaned us $1.0 million under the Loan Agreement. The loans were evidenced by a secured promissory note, issued by us to Cequent, which bears interest, at a rate of ten percent per annum. On July 21, 2010 the merger
was consummated and, in accordance with the Loan Agreement, the then outstanding principal balance of the loans and all interest then accrued but unpaid thereon was forgiven in full.

Pursuant to the Loan Agreement we issued to Cequent a warrant to purchase shares of common stock, with each such warrant to be
exercisable for a number of shares of common stock equal to sixty-five percent (65%) of the principal amount of the loan being made on such date divided by $4.598. In each of April, May and June 2010, in connection with the issuance of notes
payable to Cequent, we issued a warrant to purchase 141,354 shares of common stock at $4.598 per share, for a total of 424,062 shares, which were exercisable, for a five year term, only if the merger is not consummated. The warrant provides that the
exercise price of the warrant will be reduced in the event of subsequent financings at an effective price per share less than the exercise price of the warrants. The issuance of these warrants was not a dilutive issuance. On July 21, 2010 the
merger was consummated and, in accordance with the Loan Agreement, the warrants terminated. A portion of consideration transferred to Cequent security holders in connection with the acquisition has been determined to be attributable to termination
of notes payable and warrants, such amount being the net book value of notes payable and accrued interest, net of unamortized discount, which approximated $3.3 million. As a result, there was no gain or loss recognized upon termination.

The following table presents the activity in Notes payable and related discount for the nine months ended September 30, 2010 (in
thousands):



|                                             |  |              |        |   |          |   |        |                   |  |   |        |  
|-------------------------------------------- |  | ------------ | ------ | - | -------- | - | ------ | ----------------- |  | - | ------ | -
|                                             |  | NotesPayable |        |   | Discount |   |        | NotesPayable, net | 
|Balance at December 31, 2009                 |  | $            | 1,000  |   |          | $ | (683   | )                 |  | $ | 317    |  
|Payments                                     |  |              | (1,000 | ) |          |   |       |                   |  |   | (1,000 | )
|Issuance of notes payable and warrants       |  |              | 3,000  |   |          |   | (1,459 | )                 |  |   | 1,541  |  
|Amortization of discount to interest expense |  |              |       |   |          |   | 1,433  |                   |  |   | 1,433  |  
|Termination of notes payable and warrants    |  |              | (3,000 | ) |          |   | 709    |                   |  |   | (2,291 | )
|                                             |  |              |        |   |          |   |        |                   |  |   |        |  
|Balance at September 30, 2010                |  | $            |       |   |          | $ |       |                   |  | $ |       |  
|                                             |  |              |        |   |          |   |        |                   |  |   |        |  

Note 6  Stockholders Equity

Preferred Stock  Our board of directors has the authority, without action by the stockholders, to designate and issue up to 100,000 shares of preferred stock in one or more series
and to designate the rights, preferences and privileges of each series, any or all of which may be greater than the rights of our common stock. We have designated 90,000 shares as Series A Junior Participating Preferred, of which no shares are
outstanding.

Stockholder Rights Plan In 2000, our board of directors adopted a stockholder rights plan and
declared a dividend of one preferred stock purchase right for each outstanding share of common stock. Each right entitles the holder, once the right becomes exercisable, to purchase from us one one-thousandth of a share of our Series A Junior
Participating Preferred Stock, par value $.01 per share. We issued these rights in March 2000 to each stockholder of record on such date, and these rights attach to shares of common stock subsequently issued. The rights will cause substantial
dilution to a person or group that attempts to acquire us on terms not approved by our board of directors and could, therefore, have the effect of delaying or preventing someone from taking control of us, even if a change of control were in the best
interest of our stockholders.

Holders of our preferred share purchase rights are generally entitled to purchase from us one
one-thousandth of a share of Series A preferred stock at a price of $50.00, subject to adjustment as provided in the Stockholder Rights Agreement. These preferred share purchase rights will generally be exercisable only if a person or group becomes
the beneficial owner of 15 percent or more of our outstanding common stock or announces a tender offer for 15 percent or more of our outstanding common stock. Each holder of a preferred share purchase right, excluding an acquiring entity or any of
its affiliates, will have the right to receive, upon exercise, shares



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of our common stock, or shares of stock of the acquiring entity, having a market value equal to two times the purchase price paid for one one-thousandth of a share of Series A preferred stock. In
March 2010 we amended the Stockholder Rights Agreement to extend the expiration date of the preferred share purchase rights from March 17, 2010 to March 17, 2013, and this amendment was approved by our shareholders on July 21, 2010.
Initially, 10,000 Series A Junior Participating Preferred shares were designated, which has been increased to 90,000 shares.

Common Stock  Holders of our common stock are entitled to one vote for each share held of record on all matters
submitted to a vote of the holders of our common stock. Subject to the rights of the holders of any class of our capital stock having any preference or priority over our common stock, the holders of shares of our common stock are entitled to receive
dividends that are declared by our board of directors out of legally available funds. In the event of our liquidation, dissolution or winding-up, the holders of common stock are entitled to share ratably in our net assets remaining after payment of
liabilities, subject to prior rights of preferred stock, if any, then outstanding. Our common stock has no preemptive rights, conversion rights, redemption rights or sinking fund provisions, and there are no dividends in arrears or default. All
shares of our common stock have equal distribution, liquidation and voting rights, and have no preferences or exchange rights.

Pursuant to a universal shelf registration statement filed with the SEC and declared effective by the SEC in 2008, we could issue up to
$50.0 million of our common stock, preferred stock, debt securities, warrants to purchase any of the foregoing securities and units comprised of any of the foregoing securities. We accessed our universal shelf registration statement in connection
with our April 2008, June 2009 and January 2010 offerings of common stock and warrants and our December 2009 issuance of warrants.

In January 2010, we received net proceeds of approximately $4.9 million from an offering of units comprised of 1,346,389 shares of common stock together with warrants to purchase up to 875,155 shares of
our common stock at a purchase price of $4.085 per unit.

On July 21, 2010, in connection with our acquisition of Cequent
Pharmaceuticals, we issued an aggregate of 9,882,853 shares of common stock to the stockholders of Cequent in exchange for all of the shares of Cequent common and preferred stock that were issued and outstanding immediately prior to the Merger. Of
the total shares issued, 1,110,440 of these shares were considered issued in exchange for the termination of the amounts loaned, including accrued interest, to us by Cequent and the warrants issued by us to Cequent under the Loan Agreement and
Warrant Agreement. We also assumed all of the stock options and warrants of Cequent outstanding as of July 21, 2010.

In
August 2010, we filed a universal shelf registration statement with the SEC, which was declared effective by the SEC in September 2010. Under this shelf registration statement, we can issue up to $50.0 million of our common stock, preferred
stock, debt securities, warrants to purchase any of the foregoing securities, and/or rights to purchase shares of our common or preferred stock, either individually or in units comprised of any of such securities.

On November 4, 2010, we entered into an Amendment to Securities Purchase Agreements (the Amendment) pursuant to which we
amended the Securities Purchase Agreements dated as of April 25, 2008, June 9, 2009 and January 13, 2010. In consideration for which Amendment we issued to the signatories thereto warrants to purchase up to 686,260 shares of
common stock (the Warrants). The Warrants were issued pursuant to our effective shelf registration statement. The Warrants have a five year term, are exercisable immediately, and have an initial exercise price of $2.03 per whole share of
common stock, which is subject to adjustment. Also on November 4, 2010, we entered into a Securities Purchase Agreement (the Purchase Agreement) pursuant to which we sold, in a registered direct offering, an aggregate of 1,795,000
shares of common stock at a negotiated purchase price of $1.84 per share of common stock, for aggregate gross proceeds of approximately $3,303,000. As part of the transaction, the buyers also received subscription investment units (the
Subscription Units) to purchase during the 16-month period following the date of issuance, an aggregate of 2,423,550 shares of common stock at a per share exercise price equal to the lesser of (i) $2.21, and (ii) 90% of the
quotient of (x) the sum of the three lowest VWAP of the common stock for any three trading days during the ten (10) consecutive trading day period ending and including the trading day immediately prior to the applicable exercise date,
divided by (y) three (3). If after 120 calendar days from the closing date certain conditions are satisfied, including that the closing price of our common stock exceeds $4.78 for 10 consecutive trading days, and the daily volume of our common
stock on each of such 10 consecutive trading days is greater than 400,000 shares per day, we shall have the right to require the buyers to exercise their Subscription Units upon five days written notice.

Warrants In connection with offerings of our common stock and notes payable, we have issued warrants to purchase shares of
our common stock. In April 2008, we issued warrants to purchase 1,147,571 shares exercisable for seven years with an exercise price of $9.504 per share, warrants to purchase 344,271 shares exercisable for a 90 day period with an exercise price of
$8.68 per share (which expired in January 2009) and warrants to purchase 57,379 shares exercisable for five years with an exercise price of $9.504 per share. In June 2009, we issued 1,312,500 warrants exercisable for the five-year period beginning
in December 2009 with an exercise price of $9.52 per share. In December 2009, we issued warrants to purchase 268,819 shares exercisable for five years with an exercise price of $4.08 per share. In January 2010, we issued warrants to purchase 875,155
shares of common stock exercisable for five years with an exercise price of $4.00 per share.



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The warrants provide
that the exercise price of the warrant will be reduced in the event of subsequent financings at an effective price per share less than the exercise price of the warrants, subject to certain exceptions and limitations. The April 2008 warrants also
require a corresponding adjustment of the number of shares of common stock that may be acquired such that the total consideration payable remains unchanged upon full exercise regardless of a downward adjustment in the exercise price. The June 2009
offering was specifically excluded by the April 2008 warrant holders from triggering any potential anti-dilution provisions of the April 2008 warrants. In addition, in connection with our June 2009 offering, we agreed to seek shareholder approval,
to amend the April 2008 warrant agreements to allow the warrants to be repriced below the $8.68 price floor upon dilutive issuances subsequent to such shareholder approval. At the July 21, 2010 annual shareholders meeting, a proposal to
amend the April 2008 warrants to remove the $8.68 floor was not approved by shareholders and therefore effective that date the April 2008 warrants are no longer subject to further price adjustments and there can be no further adjustment to the
number of warrant shares. As a result, the fair value liability for price adjustable warrants relating to these warrants, which approximated $2.8 million at July 21, 2010, was reclassified to stockholders equity.

In December 2009, in connection with the issuance of notes payable, we issued warrants to purchase 268,819 shares of common stock. The
issuance of these warrants was a dilutive issuance and in accordance with the terms of the warrant agreements, the April 2008 warrants were repriced to $8.68 per share and warrants to purchase an additional 113,211 shares at $8.68 per share were
issued, and the June 2009 warrants were repriced to $4.08 per share. The June 2009 warrants are subject to additional repricings upon future dilutive issuances. The December 2009 warrants are subject to additional repricings upon future dilutive
issuances until December 31, 2010.

In January 2010, we issued warrants to purchase 875,155 shares of common stock at
$4.00 per share. The warrants are exercisable until January 19, 2015 and the warrants provide that the exercise price of the warrant will be reduced in the event of subsequent financings at an effective price per share less than the exercise
price of the warrants, limited to a price floor of $3.76 per share. We agreed to seek shareholder approval to remove the price floor of $3.76 per share. At the July 21, 2010 annual shareholders meeting, a proposal to amend the January
2010 warrants to remove the $3.76 floor was not approved by shareholders.

As a result of the issuance of common stock at a
price of $1.84 per share on November 4, 2010, 956,319 warrants previously outstanding that were issued in June 2009 and December 2009 were repriced to $1.84 per share and 871,405 warrants previously outstanding that were issued in January 2010
were repriced to the floor of $3.76 per share.

In each of April, May and June 2010, in connection with the issuance of notes
payable to Cequent, we issued a warrant to purchase 141,354 shares of common stock at $4.5984 per share, for a total of 424,062 shares. On July 21, 2010 the merger was consummated and the warrants issued to Cequent terminated.

In the nine months ended September 30, 2010, warrants to purchase 628,750 shares were exercised, pursuant to which we received cash
proceeds of approximately $2.6 million and issued 628,750 shares of our common stock.

The following summarizes warrant
activity during the nine months ended September 30, 2010:



|                                             |  |                |           |   |                                |   |      | 
|-------------------------------------------- |  | -------------- | --------- | - | ------------------------------ | - | ---- | 
|                                             |  | Warrant Shares |           |   | Weighted AverageExercise Price |  
|Warrants outstanding, December 31, 2009      |  |                | 2,886,980 |   |                                | $ | 6.16 | 
|Warrants issued                              |  |                | 875,155   |   |                                |   | 4.00 | 
|Warrants issued to Cequent                   |  |                | 424,062   |   |                                |   | 4.60 | 
|Warrants assumed in Cequent acquisition      |  |                | 10,556    |   |                                |   | 1.75 | 
|Warrants exercised                           |  |                | (628,750  | ) |                                |   | 4.08 | 
|Warrants terminated upon Cequent acquisition |  |                | (424,062  | ) |                                |   | 4.60 | 
|                                             |  |                |           |   |                                |   |      | 
|Warrants outstanding, September 30, 2010     |  |                | 3,143,941 |   |                                | $ | 5.94 | 
|                                             |  |                |           |   |                                |   |      | 

Note 7  Stock Incentive Plans

At September 30, 2010, options to purchase up to 2,634,095 shares of our common stock were outstanding, unvested restricted stock awards for an aggregate of 1,132 shares of our common stock were
outstanding under our 2004 Plan and 1,050,107 shares were available for future grants or awards under our various stock incentive plans. At our July 21, 2010 annual shareholders meeting, our shareholders approved the addition of one
million shares to our 2008 stock incentive plan.



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We generally issue new
shares for option exercises unless treasury shares are available for issuance. We had no treasury shares as of September 30, 2010 and have no plans to purchase any in the next year, however, we may accept the surrender of vested restricted
shares from employees to cover tax requirements at our discretion.

Stock-based Compensation  The following table
summarizes stock-based compensation expense (in thousands):



|                                    |  |                                  |       |  |                                 |   |     |      |  |   |       |  |  |   |       | 
|----------------------------------- |  | -------------------------------- | ----- |  | ------------------------------- | - | --- | ---- |  | - | ----- |  |  | - | ----- | 
|                                    |  | Three Months ended September 30, |       |  | Nine months ended September 30, |  
|                                    |  | 2009                             |       |  | 2010                            |   |     | 2009 |  |   | 2010  | 
|Stock-based compensation:           |  |                                  |       |  |                                 |   |     |      |  |   |       |  |  |   |       | 
|Research and development            |  | $                                | 294   |  |                                 | $ | 159 |      |  | $ | 14    |  |  | $ | 504   | 
|Selling, general and administrative |  |                                  | 1,003 |  |                                 |   | 580 |      |  |   | 1,262 |  |  |   | 1,140 | 
|                                    |  |                                  |       |  |                                 |   |     |      |  |   |       |  |  |   |       | 
|Total stock-based compensation      |  | $                                | 1,297 |  |                                 | $ | 739 |      |  | $ | 1,276 |  |  | $ | 1,644 | 
|                                    |  |                                  |       |  |                                 |   |     |      |  |   |       |  |  |   |       | 

Stock-based compensation expense is recognized on a straight-line basis over the applicable vesting periods,
based on the fair value on the grant date. Certain option and share awards provide for accelerated vesting if there is a change in control (as defined in the applicable plan and certain employment agreements we have with key employees).

Stock Options Stock options to purchase shares of our common stock are granted under our existing stock-based incentive
plans to certain employees, at prices at or above the fair market value on the date of grant.

The following table summarizes
stock option activity during the nine months ended September 30, 2010:



|                                       |  |         |           |   |                              |   |       |                                         |  |  |                         |  |  |   |     | 
|-------------------------------------- |  | ------- | --------- | - | ---------------------------- | - | ----- | --------------------------------------- |  |  | ----------------------- |  |  | - | --- | 
|                                       |  | Options |           |   | WeightedAverageExercisePrice |   |       | WeightedAverageRemainingContractualLife |  |  | AggregateIntrinsicValue | 
|                                       |  |         |           |   |                              |   |       |                                         |  |  | (in thousands)          | 
|Outstanding December 31, 2009          |  |         | 2,107,502 |   |                              | $ | 9.25  |                                         |  |  |                         |  |  |   |     | 
|Options granted                        |  |         | 76,813    |   |                              |   | 3.01  |                                         |  |  |                         |  |  |   |     | 
|Options assumed in Cequent acquisition |  |         | 580,828   |   |                              |   | 2.32  |                                         |  |  |                         |  |  |   |     | 
|Options exercised                      |  |         | (26,250   | ) |                              |   | 1.16  |                                         |  |  |                         |  |  |   |     | 
|Options expired                        |  |         | (82,873   | ) |                              |   | 29.65 |                                         |  |  |                         |  |  |   |     | 
|Options forfeited or cancelled         |  |         | (21,925   | ) |                              |   | 2.62  |                                         |  |  |                         |  |  |   |     | 
|                                       |  |         |           |   |                              |   |       |                                         |  |  |                         |  |  |   |     | 
|Outstanding at September 30, 2010      |  |         | 2,634,095 |   |                              | $ | 7.03  |                                         |  |  | 6.9 years               |  |  | $ | 413 | 
|                                       |  |         |           |   |                              |   |       |                                         |  |  |                         |  |  |   |     | 
|Exercisable at September 30, 2010      |  |         | 1,946,599 |   |                              | $ | 7.24  |                                         |  |  | 6.2 years               |  |  | $ | 371 | 
|                                       |  |         |           |   |                              |   |       |                                         |  |  |                         |  |  |   |     | 

The per-share fair value of stock options granted was approximately $4.68 and $3.80 in the three and nine
months ended September 30, 2009, respectively, and $2.49 and $2.52 in the three and nine months ended September 30, 2010, respectively, which were estimated at the date of grant using the Black-Scholes-Merton option valuation model with
the following weighted average assumptions for the periods presented as follows:



|                          |  |                                  |           |   |                                 |  |           |      |  |  |           |   |  |  |           |  
|------------------------- |  | -------------------------------- | --------- | - | ------------------------------- |  | --------- | ---- |  |  | --------- | - |  |  | --------- | -
|                          |  | Three months ended September 30, |           |   | Nine months ended September 30, | 
|                          |  | 2009                             |           |   | 2010                            |  |           | 2009 |  |  | 2010      |  
|Expected dividend yield   |  |                                  | 0         | % |                                 |  | 0         | %    |  |  | 0         | % |  |  | 0         | %
|Risk free interest rate   |  |                                  | 2.6       | % |                                 |  | 1.7       | %    |  |  | 2.3       | % |  |  | 1.7       | %
|Expected stock volatility |  |                                  | 117       | % |                                 |  | 115       | %    |  |  | 105       | % |  |  | 115       | %
|Expected option life      |  |                                  | 6.0 years |   |                                 |  | 5.6 years |      |  |  | 5.8 years |   |  |  | 5.6 years |  

As of
September 30, 2010, we had approximately $1.7 million of total unrecognized compensation cost related to unvested stock options. Total unrecognized compensation cost will be adjusted for future changes in estimated forfeitures. We expect to
recognize this cost over a weighted average period of approximately 1.4 years.

The intrinsic value of stock options
outstanding and exercisable at September 30, 2010 is based on the $2.39 closing market price of our common stock on that date, and is calculated by aggregating the difference between $2.39 and the exercise price of each of the outstanding
vested and unvested stock options which have an exercise price less than $2.39. In the three-and nine month periods ended September 30, 2009, 3,750 options were exercised and in the three and nine month periods ended September 30, 2010,
2,500 and 26,250 options were exercised, respectively. The total intrinsic value of options exercised during the three and nine months ended



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September 30, 2009 was approximately $10,000. The total intrinsic value of options exercised during the three and nine months ended September 30, 2010 was approximately $4,000 and
$75,000, respectively. We recorded stock-based compensation expense related to stock options of approximately $1.2 million and $1.6 million in the three and nine months ended September 30, 2009, respectively. We recorded stock-based
compensation expense related to stock options of approximately $0.7 million and $1.5 million in the three and nine months ended September 30, 2010, respectively. In July 2010, in connection with our annual shareholders meeting, three members of
our board of directors retired. Our board of directors approved a resolution to extend the amount of time the retiring directors have to exercise their vested options from 90 days to four years. Additional compensation expense recognized as a result
of the modification was approximately $0.2 million. The total fair value of options that vested during the three and nine months ended September 30, 2009 was approximately $0.6 million and $1.9 million, respectively. The total fair value of
options that vested during the three and nine months ended September 30, 2010 was approximately $0.8 million and $2.0 million, respectively.

Non-Employee Option Grants As part of the Cequent acquisition, we assumed stock options granted to non-employees which were converted to stock options for 79,642 shares of Marina Biotech
common stock. Non-employee option grants are recorded as expense over the vesting period of the underlying stock options. At the end of each financial reporting period prior to vesting, the value of these options, as calculated using the
Black-Scholes-Merton option pricing model, is re-measured using the fair value of our common stock and the stock-based compensation recognized during the period is adjusted accordingly. Since the fair value of options granted to non-employees is
subject to change in the future, the amount of future compensation expense will include fair value re-measurements until the stock options are fully vested. We recognized expense of approximately $50,000 and $56,000 in the nine months ended
September 30, 2009 and 2010, respectively, relating to options granted to non-employees.

Restricted Stock Awards Pursuant to restricted stock awards granted under our 2004 Stock Incentive Plan, we have issued shares of restricted stock to certain employees and members of our Board. Non-cash compensation expense is recognized on a straight-line basis
over the applicable vesting periods based on the fair value of such restricted stock on the grant date. There were no restricted stock awards granted during 2009 or 2010. Additional information on restricted shares is as follows:



|                                                           |  |   |        |  
|---------------------------------------------------------- |  | - | ------ | -
|Unvested restricted shares outstanding, December 31, 2009  |  |   | 5,504  |  
|Restricted shares vested                                   |  |   | (4,372 | )
|                                                           |  |   |        |  
|Unvested restricted shares outstanding, September 30, 2010 |  |   | 1,132  |  
|                                                           |  |   |        |  
|Weighted average grant date fair value per share           |  | $ | 22.45  |  
|                                                           |  |   |        |  

Our total unrecognized compensation cost related to unvested restricted stock awards granted under our 2004
Stock Incentive Plan was approximately $3,000 at September 30, 2010. Total unrecognized compensation cost will be adjusted for future changes in estimated forfeitures. We expect to recognize this cost over a weighted average period of
approximately 0.3 years.

Stock-based compensation recorded related to restricted stock grants was approximately $0.1 million
and a benefit of approximately $0.4 million in the three and nine months ended September 30, 2009, respectively, and expense of approximately $8,000 and $90,000 in the three and nine months ended September 30, 2010, respectively. The
benefit in the 2009 period was due to forfeitures. The fair value of restricted stock vested during the three and nine month periods ended September 30, 2009 was approximately $0.2 million and $0.5 million and the fair value of restricted stock
vested during the three and nine month periods ended September 30, 2010 was approximately $0.1 million and $0.2 million, respectively.

Employee Stock Purchase Plan As of September 30, 2010, a total of 150,000 shares of common stock have been reserved for issuance under our 2007 Employee Stock Purchase Plan
(ESPP), of which 77,109 have been issued to date. Under the terms of the ESPP, a participant may purchase shares of our common stock at a price equal to the lesser of 85% of the fair market value on the date of offering or on the date of
purchase. We recorded stock-based compensation expense related to the ESPP of approximately $14,000 and $36,000 in the three and nine months ended September 30, 2009, respectively, and approximately $22,000 and $60,000 in the three and nine
months ended September 30, 2010, respectively.

Note 8  Contractual Agreements

Roche In February 2009, we entered into an agreement with F. Hoffmann-La Roche Inc., a New Jersey corporation, and
F. Hoffmann-La Roche Ltd., a Swiss corporation (collectively, Roche), pursuant to which we granted to Roche a worldwide, irrevocable, non-exclusive license to a portion of our technology platform, for the development of RNAi-based
therapeutics, in consideration of the payment of a one-time, non-refundable licensing fee of $5.0 million. No additional royalties are payable to us under the agreement. The agreement will expire on a country-by-country basis upon the expiration
date of the last to expire of the licensed patents in such country. Either party may terminate the agreement for material breach by the other party (subject to a 30-day cure period), or upon certain events involving the bankruptcy or insolvency of
the other party. We believe this agreement represents strong third-party validation of the siRNA construct aspect of our RNAi drug discovery platform.



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Novartis  In March 2009, we entered into an agreement with Novartis Institutes for BioMedical Research,
Inc. (Novartis), pursuant to which we granted to Novartis a worldwide, non-exclusive, irrevocable, perpetual, royalty-free, fully paid-up license, with the right to grant sublicenses, to our DiLA2-based siRNA delivery platform in consideration of a one-time,
non-refundable fee of $7.25 million, which was recognized as license fee revenue in the nine months ended September 30, 2009. Novartis may terminate this agreement immediately upon written notice to us. We believe this agreement represents
strong third-party validation of the siRNA delivery aspect of our RNAi drug discovery platform. Additionally, we entered into a separate agreement with Novartis to provide them with an exclusive period in which to negotiate a potential research and
development collaboration as well as possible broader licensing rights related to our RNAi drug delivery platform. This exclusive period expired in 2009. Approximately $0.3 million was recognized as license fee revenue in the nine months ended
September 30, 2009 under this separate agreement.

Novosom In July 2010, we entered
into an agreement pursuant to which we acquired the intellectual property of Novosom AG (Novosom) of Halle, Germany for Novosoms SMARTICLES® liposomal-based delivery system, which significantly broadens the number of approaches we may take for systemic and local delivery of our proprietary UsiRNA
therapeutics. We issued an aggregate of 1,419,487 shares of our common stock to Novosom as consideration for the acquired assets. The shares had an aggregate value equal to approximately $3.8 million, which was recorded as research and development
expense. As additional consideration for the acquired assets, we will pay to Novosom an amount equal to 30% of the value of each upfront (or combined) payment actually received by us in respect of the license of liposomal-based delivery technology
or related product or disposition of the liposomal-based delivery technology by us, up to a maximum of $3.3 million, which amount will be paid in shares of our common stock, or a combination of cash and shares of our common stock, in our discretion.

University of Michigan In May 2008, we entered into an exclusive license agreement to
Intellectual Property (IP) from the University of Michigan covering cationic peptides for enhanced delivery of nucleic acids. These peptides have unique characteristics that we believe play an important role in improving the efficacy of
delivery of RNAi-based therapeutics. We are currently using these peptides to create siRNA nanoparticles to enhance mRNA knockdown. Together with the DiLA2technology, these delivery peptides may improve the therapeutic potential of our drug candidates. In connection with
the agreement, we paid a license issue fee of $120,000, which was paid in full in three equal installments. An additional fee of $25,000 is payable annually and creditable against royalty payments.

Subject to the meeting of certain milestones triggering the obligation to make any such payments, we may be obligated to make product
development milestone payments of up to $425,000 in the aggregate for each product developed under a licensed patent under this agreement. As of September 30, 2010, we have not made, and are not under any current obligation to make, any such
milestone payments, as the conditions triggering any such milestone payment obligations have not been satisfied. The royalty payment required to be made by us to the University of Michigan under this agreement is a percentage of net sales in the low
single digits.

We sublicensed the IP under this agreement to Novartis on a nonexclusive basis in March 2009, at which time we
paid an additional onetime fee of $362,500 to the University of Michigan, which eliminated the obligation to pay the University of Michigan any future royalties or milestones with respect to the Novartis sublicense. This fee was included in
research and development expense.

This agreement will terminate on the expiration date of the last to expire patent licensed
under the agreement, which expiration date is in 2019. Under the agreement, we agreed to use diligent and commercially reasonable efforts to exploit the patent rights and bring licensed products to market. If we fail to meet certain research and
development milestones, the University of Michigan may terminate the agreement subject to a thirty day cure period. In addition, the University of Michigan may terminate this license upon written notice if the first commercial sale of a product does
not occur on or before May 2017. We may terminate this agreement at any time upon ninety days written notice.

University
of Helsinki In June 2008, we entered into a collaboration agreement with Dr. Pirjo Laakkonen and the Biomedicum Helsinki. The goal of the work involves our patented phage display library, the Trp Cage library, for the identification
of peptides to target particular tissues or organs for a given disease. In December 2009, we received a patent allowance in the US covering a targeting peptide for preferential delivery to lung tissues that was identified by us using the Trp Cage
Library. We believe the Trp Cage library will be a source of additional peptides for evaluation in our delivery programs, and we will have a strong IP position for these peptides and their use. In 2010 we extended the term of the agreement and it
will now terminate in June 2012. Either party may terminate the agreement for material breach by the other party, subject to a 30-day cure period.

Under this agreement, we may be obligated to make product development milestone payments of up to 275,000 in the aggregate for each product developed under this research agreement if certain
milestones are met. As of September 30, 2010, we have not made, and are not under any current obligation to make, any such milestone payments, as the conditions that would trigger any such milestone payment obligations have not been satisfied.
In addition, upon the first commercial sale of a product, we are required to pay an advance of 250,000 against which future royalties will be credited. The percentage royalty payment required to be made by us to the University of Helsinki
under the terms of this agreement is a percentage of gross revenues derived from work performed under the Helsinki Agreement in the low single digits.



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Ribotask
ApS. In June 2009, we announced the revision of the October 2008 agreement in which we had acquired the intellectual property related to Unlocked Nucleobase Analogs (UNA) from Ribotask ApS, a privately held Danish company. The original
agreement provided us with exclusive rights for the development and commercialization of therapeutics incorporating UNAs. The amended agreement eliminated our obligation to pay all milestone and royalty payments and provided full financial and
transactional control of our proprietary UNA technology. Our UsiRNA construct has been verified in multiple cell and in vivo models to be highly potent and efficacious for RNAi. Substitution of UNA within siRNA, creating the UsiRNA construct, has
been shown to provide greater target specificity. We believe this proprietary construct provides unique advantages for RNAi-based therapeutics and is an essential part of our business strategy and ultimate success.

In June 2010, we expanded our rights under the previous agreement with RiboTask to include exclusive rights to the development and
commercialization of UNA-based diagnostics. In connection with this amendment, we agreed to pay Ribotask $750,000 in three equal payments in each of October 2010, January 2011 and April 2011. There are no milestone or royalty payments due under
the agreement.

Under the October 2008 agreement we made payments to Ribotask totaling $500,000. We sublicensed the IP under
this agreement to Roche on a nonexclusive basis in February 2009, at which time we paid an additional $250,000 to Ribotask, which eliminated the obligation to pay Ribotask any future royalties or milestones with respect to the Roche sublicense. In
connection with the June 2009 amendment, we issued 151,515 shares of our common stock valued at approximately $1.0 million to Ribotask ApS and agreed to pay $1.0 million in four installments of $250,000 each due at various intervals through July
2010.

In connection with our agreements, as amended, we granted Ribotask a royalty-bearing, world-wide exclusive license to
use the assigned patents to develop and sell products intended solely for use as reagents or for testing. The royalty rates to be paid to us by Ribotask are in the low single digits and to date we have not recognized any revenue under this
agreement, as amended.

With the newly acquired exclusive rights to UNA technology combined with the exclusive rights to
Conformationally Restricted Nucleotide (CRN) technology for both therapeutics and diagnostics acquired in March 2010 from Valeant Pharmaceuticals, we have established one of the few intellectual property portfolios supporting a nucleic acid-based
personalized medicine platform with the ability to pursue proprietary nucleic acid-based therapeutics and diagnostics.

University of British Columbia. In November 2009, we expanded and extended a previous agreement established in 2008 with University of British Columbia/Vancouver Prostate Centre (VPC) in the
area of bladder cancer. The VPC is a National Centre for Excellence for translational research and this agreement provides us access to cutting-edge bladder cancer models and evaluation techniques and interactions with world-renowned researchers and
clinicians. Data derived from studies conducted under this agreement have already demonstrated the potency of UsiRNAs and DiLA2-based delivery for inhibition of target mRNA and reduction in tumor growth. The focus of the expanded agreement will
be the evaluation of additional critical targets in bladder cancer and the therapeutic impact on tumor biology and growth. The research agreement requires that we make payments for work completed under an agreed work plan. Through September 30,
2010, we have recognized approximately $0.2 million as research and development expense under this agreement. The agreement may be terminated by either party with ninety days written notice. The current contract period terminated October 31,
2010 but may be further extended by mutual agreement between us and VPC.

Valeant Pharmaceuticals.In March 2010, we
acquired intellectual property related to Conformationally Restricted Nucleotides (CRN) from Valeant Pharmaceuticals North America in consideration of payment of a non-refundable licensing fee of $0.5 million due in equal portions in
April and July 2010, which were included in research and development expense in the nine months ended September 30, 2010 and have been paid in full. Subject to meeting of certain milestones triggering the obligation to make any such payments,
we may be obligated to make a product development milestone payment of $5.0 million within 180 days of FDA approval of a New Drug Application for our first CRN related product and another product development milestone payment of $2.0 million within
180 days of FDA approval of a New Drug Application covering our second CRN related product. As of September 30, 2010, we have not made, and are not under any current obligation to make, any such milestone payments, as the conditions triggering
any such milestone payment obligations have not been satisfied. Valeant is entitled to receive earn-outs in the low single digits based upon future commercial sales and earn-outs in the low double digits based upon future revenue from sublicensing.
Under the agreement we are required to use commercially reasonable efforts to develop and commercialize at least one covered product. If we have not made earn-out payments of at least $5.0 million dollars prior to the sixth anniversary of the date
of the agreement, we are required to pay Valeant an annual amount equal to $50,000 per assigned patent which shall be creditable against other payment obligations. The term of our financial obligations under the agreement shall end, on a
country-by-country basis, when there no longer exists any Valid Claim in such country. We may terminate the agreement upon 30 days notice, or upon 10 days notice in the event of adverse results from clinical studies. Upon termination, we are
obligated to make all payments accrued as of the effective date of such termination but shall have no future payment obligations.



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Intranasal
related

Cypress Bioscience, Inc.  In August 2010 we entered into an Asset Purchase Agreement with Cypress
Bioscience, Inc. (Cypress) under which Cypress acquired our patent rights and technology related to carbetocin, a long-acting analog of oxytocin, a naturally produced hormone that may benefit individuals with autism. Under the agreement,
we received an upfront payment of $750,000 and we could receive milestone payments up to $27 million. Cypress will be responsible for all future development and IP related expenses. In addition, Cypress will pay Marina Biotech royalties, in the
single digits, on commercial sales.

Amylin Pharmaceuticals, Inc.  In January 2009 we amended our 2006
License Agreement with Amylin Pharmaceuticals, Inc. for the development of intranasal exenatide. The License Agreement, as amended, provides for an accelerated $1.0 million milestone payment to us in January 2009, a reduction in the aggregate amount
of milestone payments that could be due to us from $89 million to $80 million, and a reduction in the royalty rate payable upon commercial sales of a product to the low single digits. Additionally, as a result of the amendment, we are no longer
responsible for any further development of the nasal spray formulation of intranasal exenatide or its manufacture. Either party may terminate the agreement for breach of any material provision of the agreement upon sixty days notice of the breach
and subject to a sixty day cure period. Amylin may also terminate the agreement upon ninety days written notice.

Par
Pharmaceutical  In 2009 we entered into an Asset Purchase Agreement with Par Pharmaceutical (Par) pursuant to which, among other things, a 2004 License and Supply Agreement with Par, and a 2005 Supply Agreement with QOL Medical
LLC, were terminated. Under the Asset Purchase Agreement, Par acquired certain assets pertaining to calcitonin, including our ANDA for generic calcitonin-salmon nasal spray, inventories, tooling and equipment, and the related technology, trade
secrets, know-how, proprietary information and other intellectual property rights, and assumed certain contracts, including our manufacturing obligation to QOL Medical as well as our two building leases related to our operations in Hauppauge, New
York. We received $0.8 million in cash and are entitled to receive earn-out payments for five years based on commercial sales of calcitonin. Calcitonin received full FDA approval and was launched in June 2009. We recognized a gain of approximately
$0.1 million on the asset sale to Par which is included as an offset to research and development expense in the nine months ended September 30, 2009. In addition, in the nine months ended September 30, 2009 we recognized approximately $0.1
million in revenue for services provided under the Asset Purchase Agreement. In the three and nine months ended September 30, 2009 we recognized approximately $0.1 million in revenue relating to earn-out payments based on commercial sales of
calcitonin. In the three and nine months ended September 30, 2010 we recognized approximately $0.1 million and $0.3 million in revenue, respectively, relating to earn-out payments based on commercial sales of calcitonin.

Thiakis Limited (Thiakis)  In 2004, we acquired exclusive worldwide rights to the Imperial College Innovations
and Oregon Health & Science University PYY patent applications in the field of nasal delivery of PYY and the use of glucagon-like peptide-1 (GLP-1) used in conjunction with PYY for the treatment of obesity, diabetes and other metabolic
conditions. We recorded $1.2 million in research and development expense in 2008 related to the estimated obligations under this license agreement at December 31, 2008. In April 2009 we entered into a Deed of Release and termination pursuant to
which we agreed to pay $1.1 million, payable in quarterly amounts commencing April 2009 and ending April 2010. The difference between $1.1 million and the amount originally estimated was recorded as reduction of expense in the nine months ended
September 30, 2009. In February 2010, we amended the payment schedule for the final two payments totaling $450,000 such that $50,000 was paid in February 2010, $200,000 was paid in April 2010 and a final payment in the amount of $210,000 was
paid in June 2010. The final payment included $10,000 representing interest.

Other

QOL Medical LLC  In October 2005, we entered into a supply agreement with QOL (the QOL
Agreement) under which, subject to certain limitations, we were obligated to manufacture and supply, and QOL was obligated to purchase from us, all of QOLs requirements for Nascobal® brand products for vitamin B12 (cyanocobalamin) deficiency in patients with pernicious anemia, Crohns Disease, HIV/ AIDS and multiple sclerosis. Under the terms
of the QOL Agreement we received a $2.0 million upfront fee, which was being recognized ratably over the five-year life of the QOL Agreement. In connection with the Asset Purchase Agreement with Par Pharmaceutical which we entered into in March
2009, the QOL Agreement was terminated. We recognized approximately $0.7 million in deferred revenue related to the Supply Agreement in the nine months ended September 30, 2009.



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Note 9  Income Taxes

We continue to record a valuation allowance in the full amount of deferred tax assets since realization of such tax
benefits has not been determined by our management to be more likely than not. At the end of each interim period, we make our best estimate of the effective tax rate expected to be applicable for the full fiscal year, and the rate so determined is
used in providing for income taxes on a current year-to-date basis. The difference between the expected provision or benefit computed using the statutory tax rate and the recorded provision or benefit of zero, is primarily due to the change in
valuation allowance.

Note 10  Commitments and Contingencies

Leases We lease space for our research and development and corporate offices in Bothell, Washington under operating leases
expiring in 2016 and we lease space for research and development in Cambridge, Massachusetts under an operating lease expiring in 2012. At September 30, 2010, minimum lease payment obligations under the Cambridge lease approximate $0.1 million,
$0.3 million and $0.2 million in 2010, 2011 and 2012, respectively. In connection with the terms of our lease of our Bothell, Washington facility at 3830 Monte Villa Parkway, we have provided our landlord with a stand-by letter of credit.

In March 2009, we entered into an amendment of our lease for an exited facility, pursuant to which we have no lease payment
obligations until July 2010, which reduced our lease obligations by approximately $1.9 million. Under terms of the amendment, we released both a cash deposit of approximately $0.3 million and restricted cash under a letter of credit of approximately
$1.0 million to the landlord and issued 375,000 shares of our common stock to the landlord. In addition, in July 2009 the landlord leased approximately 37% of the exited facility, and in connection therewith, we entered into an amendment to our
lease agreement which, among other things, terminated the lease with respect to this portion of the premises.

Contingencies We are subject to various legal proceedings and claims that arise in the ordinary course of business. Our
management currently believes that resolution of such legal matters will not have a material adverse impact on our consolidated financial position, results of operations or cash flows.

Note 11  Subsequent Events

On November 1, 2010, we received
notification from the Internal Revenue Service that we had been awarded three grants for an aggregate of approximately $0.7 million under the Qualified Therapeutic Discovery Grant funds under section 48D of the Internal Revenue Code.

As further described in Note 6, on November 4, 2010, we amended the Securities Purchase Agreements dated as of April 25,
2008, June 9, 2009 and January 13, 2010. In consideration for which Amendment we issued to the signatories thereto warrants to purchase up to 686,260 shares of common stock (the Warrants). The Warrants have a five year
term, are exercisable immediately, and have an initial exercise price of $2.03 per whole share of common stock, which is subject to adjustment. In addition, on November 4, 2010, we raised proceeds of approximately $3.3 million in a registered
direct offering of 1,795,000 shares of common stock and subscription investment units to purchase up to 2,423,550 shares of common stock. As a result of the issuance of common stock at a price of $1.84 per share, 956,319 warrants previously
outstanding that were issued in June 2009 and December 2009 were repriced to $1.84 per share and 871,405 warrants previously outstanding that were issued in January 2010 were repriced to the floor of $3.76 per share.



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ITEM 2  MANAGEMENTS DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Overview

Statements contained herein that are not historical fact may be forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, or the Securities Act, and
Section 21E of the Securities Exchange Act of 1934, as amended, or the Exchange Act, that are subject to a variety of risks and uncertainties. There are a number of important factors that could cause actual results to differ materially from
those projected or suggested in any forward-looking statement made by us. These factors include, but are not limited to: (i) the ability of our company to obtain additional funding; (ii) the ability of our company to attract and/or
maintain manufacturing, research, development and commercialization partners; (iii) the ability of our company and/or a partner to successfully complete product research and development, including pre-clinical and clinical studies and
commercialization; (iv) the ability of our company and/or a partner to obtain required governmental approvals, including product and patent approvals; and (v) the ability of our company and/or a partner to develop and commercialize
products that can compete favorably with those of competitors. In addition, significant fluctuations in quarterly results may occur as a result of the timing of milestone payments, the recognition of revenue from milestone payments and other
sources, and the timing of costs and expenses related to our research and development programs. Additional factors that would cause actual results to differ materially from those projected or suggested in any forward-looking statements are contained
in our filings with the Securities and Exchange Commission, including those factors discussed under the captions Risk Factors and Forward-Looking Information in our most recent Annual Report on Form 10-K, as may be
supplemented or amended from time to time, which we urge investors to consider. We undertake no obligation to publicly release revisions in such forward-looking statements that may be made to reflect events or circumstances after the date hereof or
to reflect the occurrences of unanticipated events or circumstances, except as otherwise required by securities and other applicable laws.

We are a biotechnology company focused on the discovery, development and commercialization of pharmaceuticals based on RNA interference (RNAi). Our goal is to be the leader in RNAi
therapeutics and improve human health through the development of RNAi-based compounds that provide superior therapeutic options for patients. Our team of approximately 45 scientists brings expertise in the discovery, evaluation and optimization of
small interfering RNAs (siRNAs) as well as siRNA delivery. We have the requisite experience in the areas of RNAi, molecular and cellular biology, microbiology, amino acid, oligonucleotide and peptide chemistry, pharmacology,
bioinformatics, as well as regulatory affairs and clinical development necessary to discover and develop tailored RNAi-based compounds designed to elicit specific therapeutic effects on a target-by-target basis. Our infrastructure provides for
pre-clinical scale manufacturing of both siRNAs, short hairpin RNAs (shRNAs) and delivery materials, the comprehensive analysis and optimization of these compounds both individually and as drug candidates, the filing of Investigational New Drug
Applications and clinical operations.

On July 21, 2010, we consummated the acquisition of Cequent Pharmaceuticals, Inc.
(Cequent), a privately-held company engaged in the development of novel products to deliver RNAi-based therapeutics. We completed the transaction by the issuance of approximately 9.9 million shares of our common stock in exchange
for all outstanding equity securities of Cequent. Of the total shares issued, approximately 1.1 million of these shares were considered issued in exchange for the termination of the amounts loaned, including accrued interest, to us by Cequent
and the warrants issued by us to Cequent under the Loan Agreement and Warrant Agreement. We also assumed all of the stock options and warrants of Cequent outstanding as of July 21, 2010. As a result of the merger, Cequent is now our wholly
owned subsidiary.

We have multiple proprietary RNAi drug discovery platforms with the capability to
deliver RNAi-based therapeutics via systemic, local and oral administration. In addition to our own, internally developed technologies, we strategically in-license and further develop RNAi- and delivery-related technologies, forming multiple drug
discovery platforms. We are currently employing two proven RNAi platforms to down-regulate the expression of specific proteins that cause disease: (i) TauRNAi which is a combination of our proprietary UsiRNA (small interfering RNA [siRNA]
modified with our Unlocked Nucleobase Analogs [UNA] chemistry) technology and our novel dialkylated amino acid-based liposome (DiLA2) delivery system; and (ii) TransKingdom RNAi, or tkRNAi, which is an expressed RNA in a bacterial delivery
system. These approaches give us the flexibility to optimize oral, systemic and local delivery of RNAi-based therapies to target a wide range of human diseases based on the unique characteristics of the cells and organs involved in each disease.
With our recent acquisition of Cequent Pharmaceuticals, we expanded our oncology pipeline with a product for Familial Adenomatous Polyposis (FAP)  a genetic disorder that is a precursor to colon cancer  that will soon begin Phase 1
clinical testing under an Investigational New Drug application (IND) filed with the U.S. Food and Drug Administration (FDA). In order to protect our innovations, which encompass a broad platform of both RNAi constructs and delivery technologies, as
well as the drug products that may emerge from that platform, we aggressively continue to build upon our extensive and enabling intellectual property (IP) estate.

Our business strategy is two-fold. First, we strive to establish collaborations and strategic partnerships with pharmaceutical and biotechnology companies in the area of RNAi-based therapeutics to:
(1) generate revenue and non-dilutive financing; (2) gain access



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to technical resources; and (3) further validate our drug discovery platforms. Secondly, we expect to advance our own pipeline of RNAi-based therapeutics as a foundation upon which to
improve all aspects of our drug discovery platform and to have the opportunity to commercialize drug therapies. Our pipeline is focused in oncology and specifically in FAP, bladder cancer and liver cancer. With respect to collaborations and
strategic partnerships, we are currently focused on our tauRNAi platform (proprietary UsiRNA constructs and
DiLA2delivery technology) as well as peptide delivery
technologies. Collaborations and strategic partnerships are expected to range from early partnering efforts to licensing agreements to the development of therapeutic candidates. We expect to collaborate and establish strategic partnerships with
companies who can take a drug candidate through to product commercialization by utilizing their late stage clinical development, regulatory, marketing and sales capabilities. We expect to structure certain of our collaborative agreements to receive
upfront non-refundable payments, research and development funding, milestone payments and royalties on commercial sales of products.

We will continue to focus our R&D efforts on RNAi-based therapeutics, and continue to develop and expand our RNAi technologies and IP estate. As of November 2, 2010, we owned or controlled 61
issued or allowed patents, and 56 pending U.S. patent applications, including provisional patent applications, to protect our RNAi proprietary technologies.

We believe we have established ourselves as a leading RNAi-based therapeutics company by leveraging our broad and proven expertise in RNAi science and delivery to create multiple industry-leading RNAi
drug discovery platforms, which are protected by a strong IP position and validated through licensing agreements with two large international pharmaceutical companies and an IND filed with the FDA. Because of our collaborations and other agreements,
we recognized revenue of approximately $14.5 million and $1.5 million in the nine months ended September 30, 2009 and 2010, respectively.

Cash Position, Going Concern and Recent Financings

The accompanying
unaudited condensed consolidated financial statements have been prepared on the basis that we will continue as a going concern, which contemplates realization of assets and the satisfaction of liabilities in the normal course of business. We have
incurred recurring losses and negative cash flows from operations, and have an accumulated deficit (approximately $284.9 million at September 30, 2010) and expect to incur losses in the future as we continue our research and development
(R&D) activities. Our operating expenses, primarily R&D in connection with the further development of our RNAi programs, will consume the majority of our cash resources and will require additional funding. We have funded our
losses primarily through the sale of common stock and warrants in the public markets and private placements, revenue provided by our collaboration partners, and, to a lesser extent, equipment financing facilities and loans.

At September 30, 2010, we had a working capital deficit (current assets less current liabilities) of approximately $4.3 million and
approximately $2.1 million in cash, including approximately $1.2 million in restricted cash. On March 31, 2010, in connection with the execution of the Cequent Merger Agreement, we entered into a Loan Agreement with Cequent pursuant to which,
among other things, Cequent extended to us loans in the aggregate principal amount of $3.0 million to fund our operations prior to the proposed merger. On July 21, 2010, we consummated the merger with Cequent, and as a result the loans of $3.0
million plus accrued interest were forgiven and the warrants to purchase our common stock which were issued to Cequent in connection with the Loan Agreement terminated. Cequent raised approximately $5.0 million through the sale of shares of its
preferred stock on July 21, 2010, which shares were converted into shares of our common stock at effective time of the merger. As a result of the merger, Cequent is now our wholly owned subsidiary. In November 2010, we raised proceeds of
approximately $3.3 million in a registered direct offering of 1,795,000 shares of common stock and subscription investment units to purchase up to 2,423,550 shares of common stock. In addition, in November 2010, we received notification that we had
been awarded three grants totaling approximately $0.7 million under the Qualified Therapeutic Discovery Grant funds under section 48D of the Internal Revenue Code. We believe that our current resources will be sufficient to fund our planned
operations into the first quarter of 2011.

We plan to continue to work with large pharmaceutical companies regarding research
and development collaboration agreements or investments, and to pursue public and private sources of financing to raise cash. However, there can be no assurance that we will be successful in such endeavors. The volatility in our stock price, as well
as general market conditions, could make it difficult for us to complete a financing transaction on favorable terms, or at all. Any financing we obtain may further dilute the ownership interest of our current stockholders. If we are unable to obtain
additional capital when required, we could modify, delay or abandon some or all of our programs. These factors, among others, raise substantial doubt about our ability to continue as a going concern. The accompanying condensed consolidated financial
statements do not include any adjustments that may result from the outcome of this uncertainty. The Report of Independent Registered Public Accounting Firm included in our Annual Report as of December 31, 2009 stated that these conditions,
among others, raise substantial doubt about our ability to continue as a going concern.

Cash flows

Our operating activities used cash of approximately $14.0 million in the nine months ended September 30, 2010, compared to using cash
of approximately $3.8 million in the nine months ended September 30, 2009. In the nine months ended September 30, 2010, cash used in operating activities related primarily to funding our net loss, partially offset by non-cash amortization
of discount



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on notes payable, stock-based compensation, depreciation and amortization as well as changes in accounts payable, prepaid and other assets and accrued liabilities. Also included in the net loss
for the nine months ended September 30, 2010 was approximately $3.8 million of R&D expense related to the acquisition of the intellectual property of Novosom AG. This was recorded as a non-cash expense as we issued an aggregate of 1,419,487
shares of our common stock to Novosom as consideration for the acquired intellectual property. In the nine months ended September 30, 2009, cash used in operating activities related primarily to amounts received under our license agreements
offset by funding operating expenses. We expect to use cash for operating activities in the foreseeable future as we continue our R&D activities.

Our investing activities provided cash of approximately $4.5 million in the nine months ended September 30, 2010, compared to providing cash of approximately $2.2 million in the nine months ended
September 30, 2009. In 2010 cash provided by investing activities was primarily the result of cash received in the Cequent acquisition. In accordance with the merger agreement, Cequent was required to have a cash balance of at least $5.1
million minus the amount of Cequents ordinary course operating expenses from June 2, 2010 through the closing date of the merger, July 21, 2010. In 2009 cash provided by investing activities was primarily the result of sales of
property and equipment and changes in restricted cash.

Our financing activities provided cash of approximately $9.6 million
in the nine months ended September 30, 2010 compared to approximately $4.0 million in the nine months ended September 30, 2009. Changes in cash from financing activities are primarily due to issuance of common stock and warrants,
proceeds and repayment of equipment financing facilities and notes payable and proceeds from exercises of stock options and warrants. In January 2010, we raised net proceeds of approximately $4.9 million through an offering of shares of common
stock and warrants to purchase shares of common stock and approximately $1.0 million of the proceeds were used to pay off notes payable in January 2010. We borrowed $3.0 million from Cequent to fund our operations prior to the merger. On
July 21, 2010, we consummated the merger with Cequent, and as a result the loans of $3.0 million plus accrued interest were forgiven and the warrants to purchase our common stock which were issued to Cequent in connection with the Loan
Agreement terminated. We received proceeds of approximately $2.7 million from the exercise of warrants and options during the nine months ended September 30, 2010. In the nine months ended September 30, 2009, we raised net proceeds of
approximately $9.3 million through an offering of shares of common stock and warrants to purchase common stock, and paid off our note payable with GECC which used cash of approximately $5.5 million.

Recent Financing Activities

In August 2010, we filed a universal shelf registration statement with the SEC which was declared effective by the SEC in September 2010. Under the shelf registration statement, we can issue up to
$50.0 million of our common stock, preferred stock, debt securities, warrants to purchase any of the foregoing securities, and/or rights to purchase shares of our common or preferred stock, either individually or in units comprised of any of such
securities.

In November 2010, we raised proceeds of approximately $3.3 million in a registered direct offering of 1,795,000
shares of common stock and subscription investment units to purchase up to 2,423,550 shares of common stock. In addition, in November 2010, we received notification that we had been awarded three grants totaling approximately $0.7 million under the
Qualified Therapeutic Discovery Grant funds under section 48D of the Internal Revenue Code.

Summary

We believe that our current resources are sufficient to fund our planned operations into the first quarter of 2011. We based our estimate
on the receipt of planned funding and our ability to perform planned R&D activities. The market value and the volatility of our stock price, as well as general market conditions, could make it difficult for us to complete a financing transaction
on favorable terms, or at all. Any financing we obtain may further dilute or otherwise impair the ownership interests of our current stockholders. If we fail to generate positive cash flows or fail to obtain additional capital when required, we
could modify, delay or abandon some or all of our programs.

Consolidated Results of Operations

Comparison of Results of Operations

All amounts, except amounts expressed as a percentage, are presented in thousands in the following table.



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|                                                             |  |                                 |        |   |        |   |        |                                |  |   |        |   |  |      |        |    |      |   |        |   |  |   |         |   |  |   |         |   |  |  |      |   
|------------------------------------------------------------ |  | ------------------------------- | ------ | - | ------ | - | ------ | ------------------------------ |  | - | ------ | - |  | ---- | ------ | -- | ---- | - | ------ | - |  | - | ------- | - |  | - | ------- | - |  |  | ---- | --
|                                                             |  | Three Months EndedSeptember 30, |        |   | Change |   |        | Nine months endedSeptember 30, |  |   | Change |  
|                                                             |  | 2009                            |        |   | 2010   |   |        | $                              |  |   | %      |   |  | 2009 |        |    | 2010 |   |        | $ |  |   | %       |  
|Revenue                                                      |  |                                 |        |   |        |   |        |                                |  |   |        |   |  |      |        |    |      |   |        |   |  |   |         |   |  |   |         |   |  |  |      |   
|License and other revenue                                    |  | $                               | 64     |   |        | $ | 1,130  |                                |  | $ | 1,066  |   |  |      | 1,666  | %  |      | $ | 14,524 |   |  | $ | 1,507   |   |  | $ | (13,017 | ) |  |  | (90  | )%
|Operating expenses                                           |  |                                 |        |   |        |   |        |                                |  |   |        |   |  |      |        |    |      |   |        |   |  |   |         |   |  |   |         |   |  |  |      |   
|Research and development                                     |  |                                 | 3,319  |   |        |   | 7,500  |                                |  |   | 4,181  |   |  |      | 126    | %  |      |   | 11,775 |   |  |   | 14,936  |   |  |   | 3,161   |   |  |  | 27   | % 
|Selling, general and administrative                          |  |                                 | 3,478  |   |        |   | 3,956  |                                |  |   | 478    |   |  |      | 14     | %  |      |   | 7,836  |   |  |   | 8,763   |   |  |   | 927     |   |  |  | 12   | % 
|Restructuring                                                |  |                                 | 118    |   |        |   | 460    |                                |  |   | 342    |   |  |      | 290    | %  |      |   | 429    |   |  |   | 746     |   |  |   | 317     |   |  |  | 74   | % 
|                                                             |  |                                 |        |   |        |   |        |                                |  |   |        |   |  |      |        |    |      |   |        |   |  |   |         |   |  |   |         |   |  |  |      |   
|Total operating expenses                                     |  |                                 | 6,915  |   |        |   | 11,916 |                                |  |   | 5,001  |   |  |      | 72     | %  |      |   | 20,040 |   |  |   | 24,445  |   |  |   | 4,405   |   |  |  | 22   | % 
|Interest income                                              |  |                                 | 1      |   |        |   |       |                                |  |   | (1     | ) |  |      | (100   | )% |      |   | 4      |   |  |   |        |   |  |   | (4      | ) |  |  | (100 | )%
|Interest and other expense                                   |  |                                 |       |   |        |   | (321   | )                              |  |   | (321   | ) |  |      |       | %  |      |   | (311   | ) |  |   | (1,645  | ) |  |   | (1,334  | ) |  |  | 429  | % 
|Change in fair value liability for price adjustable warrants |  |                                 | (160   | ) |        |   | 2,806  |                                |  |   | 2,966  |   |  |      | (1,854 | )% |      |   | (2,092 | ) |  |   | 2,691   |   |  |   | 4,783   |   |  |  | (229 | )%
|Gain on settlement of liabilities, net                       |  |                                 |       |   |        |   | 29     |                                |  |   | 29     |   |  |      |       | %  |      |   | 654    |   |  |   | 29      |   |  |   | (625    | ) |  |  | (96  | )%
|                                                             |  |                                 |        |   |        |   |        |                                |  |   |        |   |  |      |        |    |      |   |        |   |  |   |         |   |  |   |         |   |  |  |      |   
|Net loss                                                     |  | $                               | (7,010 | ) |        | $ | (8,272 | )                              |  | $ | (1,262 | ) |  |      | (18    | )% |      | $ | (7,261 | ) |  | $ | (21,863 | ) |  | $ | (14,602 | ) |  |  | 201  | % 
|                                                             |  |                                 |        |   |        |   |        |                                |  |   |        |   |  |      |        |    |      |   |        |   |  |   |         |   |  |   |         |   |  |  |      |   

Comparison of the Three and Nine months ended September 30, 2009 to the Three and Nine
months ended September 30, 2010

Revenue.We had revenue from certain customers, as a percentage of total
revenue, as follows:



|                       |  |                                  |     |   |                                 |  |     |      |  |  |      |   |  |  |     |  
|---------------------- |  | -------------------------------- | --- | - | ------------------------------- |  | --- | ---- |  |  | ---- | - |  |  | --- | -
|                       |  | Three Months Ended September 30, |     |   | Nine months ended September 30, | 
|                       |  | 2009                             |     |   | 2010                            |  |     | 2009 |  |  | 2010 |  
|Cypress Bioscience     |  |                                  |    |   |                                 |  | 67  | %    |  |  |     |   |  |  | 50  | %
|Par Pharmaceuticals    |  |                                  | 95  | % |                                 |  | 12  | %    |  |  | 1    | % |  |  | 22  | %
|Undisclosed Partner #1 |  |                                  |    |   |                                 |  |    |      |  |  |     |   |  |  | 3   | %
|Undisclosed Partner #2 |  |                                  |    |   |                                 |  |    |      |  |  |     |   |  |  | 2   | %
|Pfizer                 |  |                                  |    |   |                                 |  | 2   | %    |  |  |     |   |  |  | 3   | %
|Novartis               |  |                                  |    |   |                                 |  |    |      |  |  | 52   | % |  |  |    |  
|Roche                  |  |                                  |    |   |                                 |  |    |      |  |  | 34   | % |  |  |    |  
|Amylin                 |  |                                  |    |   |                                 |  |    |      |  |  | 7    | % |  |  |    |  
|QOL Medical, LLC       |  |                                  |    |   |                                 |  |    |      |  |  | 6    | % |  |  |    |  
|Other                  |  |                                  | 5   | % |                                 |  | 19  | %    |  |  |     |   |  |  | 20  | %
|                       |  |                                  |     |   |                                 |  |     |      |  |  |      |   |  |  |     |  
|Total                  |  |                                  | 100 | % |                                 |  | 100 | %    |  |  | 100  | % |  |  | 100 | %
|                       |  |                                  |     |   |                                 |  |     |      |  |  |      |   |  |  |     |  

License and other revenue.License and other revenue increased in the three months ended
September 30, 2010 to approximately $1.1 million compared to approximately $0.1 million in the prior year period. In the three months ended September 30, 2010 revenue included $750,000 for the sale of assets relating our former intranasal
program for carbetocin, for the treatment of autism. In the nine months ended September 30, 2010 revenue decreased to approximately $1.5 million compared to $14.5 million in the prior year period. In the nine months ended September 30,
2009 license and other revenue was primarily from licensing our RNAi platforms, including revenue of approximately $7.3 million from Novartis and $5.0 million from Roche as well as a $1.0 million milestone payment received from Amylin, recognition
of approximately $0.7 million in deferred revenue under the QOL agreement and revenue recognized under the asset purchase agreement with Par. In the three months ended September 30, 2010 we recognized revenue of approximately $0.1 million as
earn-out payments for commercial sales of calcitonin and we recognized approximately $0.2 million in services revenue under other agreements. In the nine months ended September 30, 2010 we recognized revenue of approximately $0.3 million as
earn-out payments for commercial sales of calcitonin and we recognized approximately $0.4 million in services revenue under other agreements.

Research and Development.R&D expense consists primarily of salaries and other personnel-related expenses, costs of pre-clinical studies, consulting and other outside services, laboratory
supplies, patent license fees, facilities costs and other costs. We expense all R&D costs as incurred. R&D expense for the three and nine months ended September 30, 2010 decreased compared to the prior year periods, due to the
following:



| |  |  | Personnel-related expenses increased by 49% and 27% to approximately $1.7 million and $4.6 million in the three and nine months ended
September 30, 2010 compared to approximately $1.2 million and $3.6 million in the three and nine months ended September 30, 2009 due to an increase in headcount as a result of the acquisition of Cequent Pharmaceuticals, and an increase in
accrued expenses for incentive compensation and recruiting expenses.
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



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| |  |  | Costs of pre-clinical studies, lab supplies, consulting, and outside testing and services increased by 34% and 52% to approximately $0.9 million and
$2.0 million in the three and nine months ended September 30, 2010 compared to approximately $0.6 million and $1.3 million in the three and nine months ended September 30, 2009 as we advanced our programs for RNAi therapeutics.
| | - |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Patent license fees were approximately $3.8 million and $5.1 million in the three and nine months ended September 30, 2010 compared to $25,000 and
$3.6 million in the prior year periods. The 2010 periods included approximately $3.8 million related to licensing Novosoms SMARTICLES® liposomal-based delivery system, which significantly broadens the number of approaches we may take for systemic and local delivery of our proprietary UsiRNA
therapeutics. The nine month period ended September 30, 2009 included approximately $2.0 million in license fees incurred in connection with an amendment to the agreement with Ribotask which eliminated our obligation to pay all milestone and
royalty payments and provided full financial and transactional control of our proprietary UNA technology.
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Facilities and equipment costs decreased by 26% and 19% to approximately $0.9 million and $2.6 million in the three and nine months ended
September 30, 2010 compared to approximately $1.2 million and $3.3 million in the three and nine months ended September 30, 2009 due to a decrease in depreciation expense and related maintenance and calibration costs as a result of the
sale or retirement of excess equipment, offset in part by an increase in rent due to the addition of the facility leased in Cambridge which was acquired as part of the acquisition of Cequent Pharmaceuticals. Depreciation expense included in
facilities and equipment costs in the three and nine months ended September 30, 2010 was approximately $0.3 million and $0.8 million, compared with approximately $0.5 million and $1.3 million in the three and nine months ended
September 30, 2009.
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Stock-based compensation included in R&D expense was approximately $0.2 million and $0.5 million in the three and nine months ended
September 30, 2010 compared to approximately $0.3 million and $14,000 in the three and nine months ended September 30, 2009. The nine-month period ended September 30, 2009 included the accounting impact of forfeitures of stock options
and restricted stock awards in the prior year.
| | - |  | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | R&D expense by project, as a percentage of total R&D project expense, was as follows:
| | - |  | -------------------------------------------------------------------------------------



|                           |  |                                 |     |   |                                |  |     |      |  |  |      |   |  |  |     |  
|-------------------------- |  | ------------------------------- | --- | - | ------------------------------ |  | --- | ---- |  |  | ---- | - |  |  | --- | -
|                           |  | Three Months EndedSeptember 30, |     |   | Nine months endedSeptember 30, | 
|                           |  | 2009                            |     |   | 2010                           |  |     | 2009 |  |  | 2010 |  
|RNAi Projects              |  |                                 | 100 | % |                                |  | 100 | %    |  |  | 96   | % |  |  | 100 | %
|Legacy Intranasal Projects |  |                                 |    | % |                                |  |    | %    |  |  | 4    | % |  |  |    | %
|                           |  |                                 |     |   |                                |  |     |      |  |  |      |   |  |  |     |  
|Total                      |  |                                 | 100 | % |                                |  | 100 | %    |  |  | 100  | % |  |  | 100 | %
|                           |  |                                 |     |   |                                |  |     |      |  |  |      |   |  |  |     |  

We expect our R&D expenses to increase for the remainder of 2010 as we advance our programs for RNAi
therapeutics. Our current strategy is focused on entering into collaborations with third parties to participate in the development and, ultimately the commercialization of our RNAi technology.

Selling, general and administrative. Selling, general and administrative expense consists primarily of salaries and other
personnel-related expenses to support our R&D activities, stock-based compensation for selling, general and administrative personnel and non-employee members of our Board, professional fees, such as accounting and legal, corporate insurance and
facilities costs. Selling, general and administrative costs increased in the quarter ended September 30, 2010 compared to the prior year quarter due to the following:



| |  |  | Personnel-related expenses increased by 28% and 20% to approximately $1.3 million and $2.6 million in the three and nine months ended
September 30, 2010 compared to approximately $1.0 million and $2.2 million in the three and nine months ended September 30, 2009 due to an increase in severance costs.
| | - |  | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Costs of legal and accounting fees, consulting, corporate insurance and other administrative costs increased by 9% to approximately $1.4 million in the
three months ended September 30, 2010 compared to approximately $1.3 million in the three months ended September 30, 2009, due to higher fees for outside consultants. In the nine months ended September 30, 2010, these costs decreased
by 11% to approximately $3.1 million compared to approximately $3.5 million in the prior year period, due primarily to cost containment efforts.
| | - |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Included in selling, general and administrative expense in the three and nine months ended September 30, 2010 is approximately $0.5 million and
$1.4 million in transaction costs incurred in connection with our acquisition of Cequent. Transaction costs are expensed as incurred and no merger-related transaction costs were incurred in 2009.
| | - |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



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| |  |  | Facilities and equipment costs decreased by 17% and 43% to approximately $0.2 million and $0.5 million in the three and nine months ended
September 30, 2010 compared to approximately $0.2 million and $0.8 million in the three and nine months ended September 30, 2009 due to a decrease in rent and related expenses as a result of facilities consolidation.
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



| |  |  | Stock-based compensation included in selling, general and administrative expense was approximately $0.6 million and $1.1 million in the three and nine
months ended September 30, 2010 compared to $1.0 million and $1.3 million in the three and nine months ended September 30, 2009. The expense in the 2009 periods was higher due to the expense recognized to accelerate vesting of certain
options for terminated employees and the modification of those options to extend the amount of time to exercise.
| | - |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

We expect selling, general and administrative expenses to decrease for the remainder of 2010 as the nine months ended September 30, 2010 included significant transaction expenses incurred in
connection with the merger with Cequent.

Restructuring. Restructuring expense was approximately $0.5 million and $0.7
million in the three and nine months ended September 30, 2010 compared to $0.1 million and $0.4 million in the same periods of 2009 to reflect our current assumptions used to calculate the accrued restructuring liability for future net payments
to be made on the lease for our exited facility based on current sublease rental conditions.

Interest income.The
decrease in interest income in the three and nine months ended September 30, 2010 compared to the same periods in 2009 was primarily due to lower average interest rates earned on our cash and restricted cash.

Interest and other expense.In 2010 we incurred interest expense on our notes payable. In the nine months ended September 30,
2009 we incurred interest expense on our capital lease obligations which were converted to notes payable in January 2009 and paid off in June 2009. Interest and other expense was approximately $0.3 million and $1.6 million in the three and nine
months ended September 30, 2010 compared to zero and $0.3 million in the same periods of 2009. Although the average borrowings were lower in 2010, the 2010 expense amount increased over the prior year period due to amortization of debt issuance
costs and non-cash amortization of the fair value of the warrants issued in connection with the notes payable, which were recorded as debt discount. In July 2010 we acquired Cequent and accordingly our $3.0 million in notes payable to Cequent was
forgiven along with accrued interest thereon. We expect interest and other expense to decrease for the remainder of 2010 as a result of the forgiveness of the notes payable to Cequent.

Change in fair value liability for price adjustable warrants. We use the Black-Scholes-Merton option pricing model as our method
of valuation for price adjustable warrants. The fair value liability is revalued each balance sheet date utilizing Black-Scholes-Merton valuation model computations with the decrease or increase in fair value being reported in the statement of
operations as other income or expense, respectively. The net change in fair value liability for price adjustable warrants was income of approximately $2.8 million and $2.7 million in the three and nine months ended September 30, 2010, compared
to expense of approximately $0.2 million and $2.1 million in the same periods of 2009. The income for the quarter ended September 30, 2010 is primarily due to a decrease in our stock price from $3.60 per share as of the beginning of quarter
compared to $2.39 per share as of September 30, 2010. The income for the nine months ended September 30, 2010 is primarily due to a decrease in our stock price from $3.24 per share as of the beginning of the year compared to $2.39 per
share as of September 30, 2010. The expense for the quarter ended September 30, 2009 is due primarily to an increase in our stock price from $5.52 per share as of the beginning of the quarter to $5.60 per share as of September 30,
2009. The expense for the nine months ended September 30, 2009 is due primarily to an increase in our stock price from $1.36 per share as of the beginning of 2009 to $5.60 per share as of September 30, 2009.

Gain on settlement of liabilities, net. In the three and nine months ended September 30,, 2010, we recorded a gain of
approximately $29,000 related to the issuance of shares of stock to settle amounts due to a vendor. In the nine months ended September 30, 2009 we recorded a net gain on settlement of liabilities of approximately $0.7 million. This included a
gain of approximately $0.7 million relating to the amendment of our agreement regarding severance. In addition, we recorded a gain of approximately $0.2 million related to the issuance of shares of stock valued at approximately $0.4 million to eight
of our vendors to settle amounts due to these vendors of approximately $0.6 million in total. These gain amounts were partially offset by a lease termination fee of approximately $0.2 million incurred pursuant to the termination of our lease
agreement with GECC and subsequent refinance of the amounts due under our Loan and Security Agreement with GECC.

Off-Balance Sheet Arrangements

As of September 30, 2010, we did not have any off-balance sheet arrangements, as defined in Item 303(a)(4)(ii) of SEC Regulation S-K.

ITEM 3  QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

Not applicable.



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ITEM 4  CONTROLS AND PROCEDURES

(a) Disclosure Controls and Procedures. As of the end of the period covered by this Quarterly Report on Form 10-Q, we carried out an evaluation, under the supervision and with the participation of
our senior management, including our Chief Executive Officer and Chief Financial Officer, of the effectiveness of the design and operation of our disclosure controls and procedures. Based upon that evaluation, our Chief Executive Officer and Chief
Financial Officer concluded that our disclosure controls and procedures are effective for gathering, analyzing and disclosing the information that we are required to disclose in reports filed under the Securities Exchange Act of 1934, as amended.

(b) Internal Control Over Financial Reporting.There have been no changes in our internal control over financial
reporting during the fiscal quarter ended September 30, 2010, that materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.



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PART II  OTHER INFORMATION

ITEM 6  EXHIBITS

The exhibits
required by this item are set forth in the Exhibit Index attached hereto.



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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the Registrant has duly caused this report to be signed on its behalf by the undersigned, duly authorized, in Bothell,
State of Washington, on November 15, 2010.



MARINA BIOTECH, INC.By:

/S/    J. MICHAEL FRENCHJ. Michael FrenchPresident and Chief Executive OfficerBy:

/S/    PETER S. GARCIAPeter S. GarciaChief Financial Officer




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EXHIBIT INDEX



|            |  |                                                                                                                                                           
|----------- |  | ----------------------------------------------------------------------------------------------------------------------------------------------------------
|Exhibit No. |  | Description                                                                                                                                               
|            | 
|31.1        |  | Certification of our Chief Executive Officer pursuant to Rules 13a-14 and 15d-14 under the Securities Exchange Act of 1934, as amended. (1)               
|            | 
|31.2        |  | Certification of our Chief Financial Officer pursuant to Rules 13a-14 and 15d-14 under the Securities Exchange Act of 1934, as amended. (1)               
|            | 
|32.1        |  | Certification of our Chief Executive Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002. (2)
|            | 
|32.2        |  | Certification of our Chief Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002. (2)



|(1) | Filed Herewith.
|--- | ---------------

|(2) | Furnished Herewith.
|--- | -------------------



33