Form: 10-Q

Quarterly report pursuant to Section 13 or 15(d)

May 9, 2013



UNITED STATES
 
SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

(Mark One)
þ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE
SECURITIES EXCHANGE ACT OF 1934
For the quarterly period ended March 31, 2013

OR

o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF
THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from              to             

Commission File No.:001-34079
Rexahn Pharmaceuticals, Inc.
(Exact name of registrant as specified in its charter)
 
Delaware
 
11-3516358
(State or other jurisdiction of incorporation or organization)
 
(I.R.S. Employer Identification Number)

15245 Shady Grove Road, Suite 455
Rockville, MD 20850
(Address of principal executive offices, including zip code)

Telephone: (240) 268-5300
(Registrant’s telephone number, including area code)

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 þ  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 þ 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 definition of “accelerated filer,” “large accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act. (Check one):
 
Large Accelerated Filer
¨
Accelerated Filer
¨
Non-Accelerated Filer
¨
Smaller reporting company
þ
(Do not check if a smaller reporting company)

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

Indicate the number of shares outstanding of each of the issuer’s classes of common stock, as of the latest practicable date: 119,428,989 shares of common stock outstanding as of May 9, 2013.
 


 
 

 
 
REXAHN PHARMACEUTICALS, INC.
(A Development Stage Company)
TABLE OF CONTENTS

 
Page
   
PART I
FINANCIAL INFORMATION
 
     
Item 1
 3
     
 
1)
3
       
 
2)
4
       
 
3)
5
       
 
5)
7
       
Item 2
38
     
Item 3
46
     
Item 4
46
     
PART II
OTHER INFORMATION
 
     
Item 1
47
   
 
Item 1A
47
     
Item 2
47
     
Item 3
47
     
Item 4
47
     
Item 5
47
     
Item 6
48
   
49

 
PART I FINANCIAL INFORMATION
Item 1 Financial Statements
REXAHN PHARMACEUTICALS, INC.
(A Development Stage Company)
Condensed Balance Sheet

   
March 31, 2013
(unaudited)
   
December 31, 2012
 
ASSETS
 
Current Assets:
           
Cash and cash equivalents
  $ 12,069,028     $ 13,486,543  
Marketable securities (note 3)
    100,000       100,000  
Prepaid expenses and other current assets (note 4)
    183,320       188,808  
Total Current Assets
    12,352,348       13,775,351  
Restricted Cash Equivalents (note 16)
    957,180       1,091,801  
Equipment, Net (note 6)
    43,449       52,156  
Total Assets
  $ 13,352,977     $ 14,919,308  
LIABILITIES AND STOCKHOLDERS’ EQUITY
 
Current Liabilities:
               
Accounts payable and accrued expenses (note 7)
  $ 976,166     $ 851,837  
                 
Deferred Research and Development Arrangements (note 8)
    1,472,629       1,626,000  
                 
Other Liabilities (note 9)
    55,184       65,417  
                 
Warrant Liabilities (note 13)
    2,473,163       2,842,065  
                 
Total Liabilities
    4,977,142       5,385,319  
Commitments and Contingencies (note 16)
               
Stockholders’ Equity (note 11):
               
Preferred stock, par value $0.0001, 100,000,000 authorized shares, none issued and outstanding
    -       -  
Common stock, par value $0.0001, 500,000,000 authorized shares, 119,443,194 issued and 119,428,989 outstanding
    11,944       11,944  
Additional paid-in capital
    73,233,689       72,861,738  
Accumulated deficit during the development stage
    (64,841,388 )     (63,311,283 )
Treasury stock, 14,205 shares, at cost
    (28,410 )     (28,410 )
                 
Total Stockholders’ Equity
    8,375,835       9,533,989  
                 
Total Liabilities and Stockholders’ Equity
  $ 13,352,977     $ 14,919,308  
 
(See accompanying notes to the condensed financial statements)
 
 
REXAHN PHARMACEUTICALS, INC.
(A Development Stage Company)
Condensed Statement of Operations
(Unaudited)

               
Cumulative
 
               
from March 19,
 
               
2001
 
   
For the Three Months Ended March 31,
   
(Inception) to
March 31,
 
   
2013
   
2012
   
2013
 
Revenues:
                 
Research
  $ -     $ -     $ -  
                         
Expenses:
                       
General and administrative
    1,210,752       728,172       31,270,896  
Research and development
    552,466       1,042,700       35,830,965  
Patent fees
    136,491       102,589       2,668,595  
Depreciation and amortization
    9,316       10,721       692,239  
                         
Total Expenses
    1,909,025       1,884,182       70,462,695  
                         
Loss from Operations
    (1,909,025 )     (1,884,182 )     (70,462,695 )
                         
Other Income (Expense)
                       
Realized loss on marketable securities         .
    -       -       (13,301 )
Interest income
    10,018       6,249       1,452,417  
Interest expense
    -       -       (301,147 )
Other income
    -       -       56,047  
Unrealized gain (loss) on fair value of warrants
    368,902       (261,861 )     4,708,883  
Unrealized gain on fair value of put feature on common stock
    -       -       2,315,539  
Financing expense
    -       -       (972,131 )
Beneficial conversion feature
    -       -       (1,625,000 )
Total Other Income (Expense)
    378,920       (255,612 )     5,621,307  
                         
Net Loss Before Provision for Income Taxes
    (1,530,105 )     (2,139,794 )     (64,841,388 )
Provision for income taxes
    -       -       -  
Net Loss
  $ (1,530,105 )   $ (2,139,794 )   $ (64,841,388 )
                         
Net loss per share, basic and diluted
  $ (0.01 )   $ (0.02 )        
                         
Weighted average number of shares outstanding, basic and diluted
    119,428,989       95,345,656          

(See accompanying notes to the condensed financial statements)
 
 
REXAHN PHARMACEUTICALS, INC.
(A Development Stage Company)
Statement of Cash Flows
(Unaudited)

               
Cumulative
 
               
From March 19, 2001
 
   
For the Three Months Ended
   
(Inception) to
 
   
March 31,
   
March 31,
 
   
2013
   
2012
   
2013
 
Cash Flows from Operating Activities:
                 
Net loss
  $ (1,530,105 )   $ (2,139,794 )   $ (64,841,388 )
Adjustments to reconcile net loss to net cash used in operating activities:
                       
Beneficial conversion feature
    -       -       1,625,000  
Compensatory stock
    -       -       2,129,877  
Depreciation and amortization
    9,316       10,721       692,239  
Stock-based compensation
    371,951       91,174       6,180,567  
Amortization of deferred research and development arrangements
    (153,371 )     (18,750 )     (953,371 )
Note receivable (Note 5)
    -       7,006       -  
Realized losses on marketable securities
    -       -       13,301  
Unrealized (gain)/loss on fair value of warrants
    (368,902 )     261,861       (4,708,883 )
Unrealized gain on fair value of put feature on common stock
    -       -       (2,315,539 )
Financing expense
    -       -       972,131  
Amortization of deferred lease incentive
    (5,000 )     (5,000 )     (75,000 )
Deferred lease expenses
    (5,233 )     (4,253 )     30,184  
Loss on impairment of intangible assets
    -       -       286,132  
Changes in assets and liabilities:
                       
Prepaid expenses and other current assets
    5,488       45,919       (183,320 )
Accounts payable and accrued expenses
    124,329       (165,394 )     976,166  
Net Cash Used in Operating Activities
    (1,551,527 )     (1,916,510 )     (60,171,904 )
Cash Flows from Investing Activities:
                       
Restricted cash equivalents
    134,621       156,134       (957,180 )
Purchase of equipment
    (609 )     -       (565,604 )
Purchase of marketable securities
    -       -       (21,123,960 )
Proceeds from sales of marketable securities
    -       -       21,010,659  
Payment of licensing fees
    -       -       (356,216 )
Net Cash Provided by (Used In) Investing Activities
    134,012       156,134       (1,992,301 )
Cash Flows from Financing Activities:
                       
Issuance of common stock and units, net of issuance costs
    -       -       62,934,224  
Proceeds from exercise of stock options
    -       -       170,082  
Proceeds from exercise of stock warrants
    -       -       3,581,337  
Proceeds from long-term debt
    -       -       5,150,000  
Proceeds from research and development arrangements
    -       -       2,426,000  
Purchase of treasury stock
    -       -       (28,410 )
Net Cash Provided by Financing Activities
    -       -       74,233,233  
Net (Decrease) Increase in Cash and Cash Equivalents
    (1,417,515 )     (1,760,376 )     12,069,028  
Cash and Cash Equivalents – beginning of period
    13,486,543       9,861,488       -  
Cash and Cash Equivalents - end of period
  $ 12,069,028     $ 8,101,112     $ 12,069,028  

(See accompanying notes to the condensed financial statements)
 
 
REXAHN PHARMACEUTICALS, INC.
(A Development Stage Company)
Statement of Cash Flows (continued)
(Unaudited)
 
           
Cumulative
 
           
From March 19, 2001
 
     
For the Three Months Ended
   
(Inception) to
 
     
March 31,
   
March 31,
 
     
2013
     
2012
   
2013
 
Supplemental Cash Flow Information
                       
Interest paid
  $ -     $ -     $ 301,147  
Non-cash financing and investing activities:
                       
Warrants issued
  $ -     $ -     $ 13,691,643  
Put feature on common stock issued
  $ -     $ -     $ 4,954,738  
Dilutive issuances of common stock
  $ -     $ -     $ 2,639,199  
Warrant liability extinguishment from exercise of warrants
  $ -     $ -     $ 6,180,660  
Leasehold improvement incentive
  $ -     $ -     $ 100,000  
Settlement of lawsuit
  $ -     $ -     $ 43,953  
 
(See accompanying notes to the condensed financial statements)
 
 
REXAHN PHARMACEUTICALS, INC.
(A Development Stage Company)
Notes to Condensed Financial Statements
(Unaudited)

1.
Operations and Organization
 
Operations
 
Rexahn Pharmaceuticals, Inc. (the “Company”, “Rexahn Pharmaceuticals”), a Delaware corporation, is a development stage biopharmaceutical company dedicated to the discovery, development and commercialization of innovative treatments for cancer and other medical needs.  The Company had an accumulated deficit of $64,841,388 at March 31, 2013 and anticipates incurring losses through the remainder of fiscal 2013 and beyond.  The Company has not yet generated commercial sales revenue and has been able to fund its operating losses to date through the sale of its common stock, warrants exercisable for common stock, issuance of long-term debt, and proceeds from reimbursed research and development costs.  The Company believes that its existing cash, cash equivalents, and marketable securities will be sufficient to cover its cash flow requirements into 2014.  Management has the capability of managing the Company’s operations within existing cash available by focusing on select research and development activities, selecting projects in conjunction with potential financings and milestones, and efficient management of its general and administrative affairs.
 
Basis of Presentation
 
The accompanying unaudited condensed financial statements of the Company have been prepared pursuant to the rules and regulations of the U.S. Securities and Exchange Commission (“SEC”) for interim financial information.  Accordingly, they do not include all of the information and footnotes required by accounting principles generally accepted in the United States for complete financial statements.  In the opinion of the Company’s management, all adjustments (consisting of only normal recurring accruals) considered necessary for a fair presentation of the Company’s financial position as of March 31, 2013 and December 31, 2012 and the results of operations, and cash flows for the three months ended March 31, 2013 and 2012 have been included.  Operating results for the three months ended March 31, 2013 are not necessarily indicative of results that may be expected for any other interim period or the full fiscal year ending December 31, 2013. The accompanying unaudited financial statements should be read in conjunction with the audited financial statements and notes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2012 (“2012 Form 10-K”).  Information included in the condensed balance sheet as of December 31, 2012 has been derived from the Company’s audited financial statements for the year ended December 31, 2012 included in the 2012 Form 10-K.
 
Use of Estimates
 
The preparation of financial statements in conformity with accounting principles generally accepted in the United States requires 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 the reported amounts of revenues and expenses during the reporting period.  These estimates are based on management’s best knowledge of current events and actions the Company may undertake in the future.  Actual results may ultimately differ from those estimates.  These estimates are reviewed periodically and as adjustments become necessary, they are reported in earnings in the period in which they become available.
 
 
REXAHN PHARMACEUTICALS, INC.
(A Development Stage Company)
Notes to Condensed Financial Statements
(Unaudited)

2.
Recent Accounting Pronouncement Affecting the Company

Comprehensive Income

In February, 2013 the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update 2013-02, “Comprehensive Income: Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income,” to improve the transparency of reporting reclassifications from comprehensive income to net income.  The new amendments require that a company must present the effects on line items of net income of significant amounts reclassified out of accumulated other comprehensive income, and additional referencing and disclosure regarding these items.  The guidance is effective for the Company for fiscal years and interim periods beginning on or after December 15, 2012.  The Company adopted this guidance during the quarter ended March 31, 2013.  There was no material impact on the Company’s financial statements due to the adoption of this guidance.
 
3.
Marketable Securities
 
Cost and fair value of the Company’s marketable securities are as follows:
 
   
Cost
   
Gross Unrealized
   
Fair
 
Securities available-for-sale
 
Basis
   
Gains/(Losses)
   
Value
 
March 31, 2013:
                 
State and municipal obligations
  $ 100,000     $ -     $ 100,000  
                         
December 31, 2012:
                       
State and municipal obligations
  $ 100,000     $ -     $ 100,000  
 
Amortized cost and fair value at March 31, 2013 by contractual maturity are shown below.  Expected maturities will differ from contractual maturities because the Company may redeem certain securities at par.
 
   
Cost
 
Fair
Maturity
 
Basis
 
Value
10 years or more
  $ 100,000     $ 100,000  
 
 
REXAHN PHARMACEUTICALS, INC.
(A Development Stage Company)
Notes to Condensed Financial Statements
(Unaudited)

4.
Prepaid Expenses and Other Current Assets
 
   
March 31,
   
December 31,
 
   
2013
   
2012
 
Deposits on contracts
  $ 13,142     $ 12,818  
Other assets
    170,178       175,990  
                 
    $ 183,320     $ 188,808  
 
Deposits on contracts consist of deposits on research and development contracts for services that had not been incurred as of the balance sheet date.  Other assets include prepaid general and administrative expenses, such as insurance and rent.
 
5.
Note Receivable

On June 16, 2010, Amarex, LLC (“Amarex”) executed a note payable to the Company in settlement of a contract dispute.  The Company settled the case with Amarex for $100,000 less a balance owed of $43,953.  The principal sum of the note was $56,047, and is included in other income in the Company’s cumulative statement of operations.  Monthly payments of $2,335 began on September 1, 2010 and continued until August 1, 2012 at which time the balance was paid in full.  The note did not bear interest.
 
 
REXAHN PHARMACEUTICALS, INC.
(A Development Stage Company)
Notes to Condensed Financial Statements
(Unaudited)
 
6.
Equipment, Net

   
March 31,
   
December 31,
 
   
2013
   
2012
 
             
Furniture and fixtures
  $ 34,200     $ 34,200  
Office equipment
    81,683       81,074  
Lab and computer equipment
    430,261       430,261  
Leasehold improvements
    119,841       119,841  
                 
Total fixed assets
    665,985       665,376  
Less: Accumulated depreciation
    (622,536 )     (613,220 )
                 
Net carrying amount
  $ 43,449     $ 52,156  
 
Depreciation expense was $9,316 and $10,721 for the three months ended March 31, 2013 and 2012, respectively.
 
7.
Accounts Payable and Accrued Expenses
 
   
March 31,
   
December 31,
 
   
2013
   
2012
 
             
Trade payables
  $ 345,281     $ 250,682  
Accrued expenses
    79,358       76,289  
Accrued research and development contract costs
    409,518       452,577  
Payroll liabilities
    142,009       72,289  
                 
    $ 976,166     $ 851,837  
 

REXAHN PHARMACEUTICALS, INC.
(A Development Stage Company)
Notes to Condensed Financial Statements
(Unaudited)
 
8. 
Deferred Research and Development Arrangements
 
Rexgene Biotech Co., Ltd.
 
In 2003, the Company entered into a collaborative research agreement with Rexgene Biotech Co., Ltd. (“Rexgene”), a shareholder.  Rexgene is engaged in the development of pharmaceutical products in Asia and has agreed to assist the Company with the research, development and clinical trials necessary for registration of the Company’s drug candidate, Archexin, in Asia.  This agreement provides Rexgene with exclusive rights to license, sublicense, make, have made, use, sell and import Archexin in Asia.  In accordance with the agreement, Rexgene paid the Company a one-time fee of $1,500,000 in 2003.  The agreement terminates at the later of 20 years or the term of the patent.  The amortization reduces research and development expenses for the periods presented.
 
The Company is using 20 years as its basis for recognition and accordingly $18,750 reduced research and development expenses for the three months ended March 31, 2013 and 2012, respectively.  The remaining $731,250 and $750,000 at March 31, 2013 and December 31, 2012, respectively, is reflected as in deferred research and development arrangements on the balance sheet.  The contribution is being used in the cooperative funding of the costs of development of Archexin. Royalties of 3% of net sales of licensed products will become payable to the Company on a quarterly basis once commercial sales of Archexin begin in Asia.  The product is still under development and commercial sales in Asia are not expected to begin until at least 2014.  Under the terms of the agreement, Rexgene does not receive royalties on Company net sales outside of Asia.
 
Teva Pharmaceutical Industries, Ltd.
 
On September 21, 2009, the Company closed on a securities purchase agreement with Teva Pharmaceutical Industries Limited (“Teva”), under which Teva purchased 3,102,837 shares of our common stock for $3.5 million. Contemporaneous with the execution and delivery of this agreement, the parties executed a research and exclusive license option agreement (“RELO”) pursuant to which the Company agreed to use $2,000,000 from the gross proceeds of the issuance and sale of shares to Teva to fund a research and development program for the pre-clinical development of RX-3117.  On January 19, 2011, the Company entered into a second amendment to the securities purchase agreement in which Teva purchased 2,334,515 shares of the common stock of the company for gross proceeds of $3.95 million.  On November 27, 2012, the Company and Teva entered into a second amendment to the RELO agreement, in which Teva has provided the Company with an additional $926,000 of research funding for the development of RX-3117, which was recorded as restricted cash on the Company’s balance sheet.  The contribution from the second amendment was recorded in deferred research and development arrangements on the balance sheet, and costs incurred for the development of RX-3117 are paid from restricted cash, and reduce the deferred research and development arrangement and therefore, are not an expense in the Company’s statement of operations.  As of March 31, 2013 and December 31, 2012, the Company had proceeds remaining of $741,379, and $876,000, respectively, which is included in deferred research and development arrangements on the balance sheet.  During the quarter ended March 31, 2013, $134,621 was reduced from the deferred research and development arrangement for costs incurred for the development of RX-3117.
 
 
REXAHN PHARMACEUTICALS, INC.
(A Development Stage Company)
Notes to Condensed Financial Statements
(Unaudited)
 
9.
Other Liabilities
 
Deferred Lease Incentive

On June 29, 2009, the Company entered into a five year office lease agreement as disclosed in Note 16.  The lessor agreed to grant a leasehold improvement allowance of $100,000 to the Company to be used for the construction cost of improvements to the leased property, which included architectural and engineering fees, government agency plan check, permit and other fees, sales and use taxes, testing and inspection costs, and telephone and data cabling and wiring in the premises.  The Company accounts for the benefit of the leasehold improvement allowance as a reduction of rental expense over the five-year term of the office lease.
 
The following table sets forth the deferred lease incentive:
 
   
March 31,
   
December 31,
 
   
2013
   
2012
 
             
Deferred lease incentive
  $ 100,000     $ 100,000  
Less accumulated amortization
    (75,000 )     (70,000 )
                 
Balance
  $ 25,000     $ 30,000  
 
Deferred Office Lease Expense
 
The office lease agreement, disclosed above, requires an initial annual base rent with annual increases over the next five years.  The Company recognizes rental expense on a straight-line basis over the term of the lease, which resulted in a deferred rent liability of $30,184 and $35,417 as of March 31, 2013 and December 31 2012, respectively.
 
10.
Net Loss per Common Share
 
Basic loss per common share is computed by dividing net loss by the weighted average number of common shares outstanding for the period.  Diluted loss per common share is also computed by dividing net loss by the weighted average number of common shares outstanding, but also reflects the potential dilution that could occur if securities or other contracts to issue common stock were exercised or converted into common stock or resulted from the issuance of common stock that would then share in earnings, and such calculation excludes common shares in treasury.   As of March 31, 2013 and December 31, 2012, there were stock options and warrants to acquire 31,147,937 and 29,397,937 shares of our common stock, respectively, which are the potentially dilutive securities of the Company.
 
 
REXAHN PHARMACEUTICALS, INC.
(A Development Stage Company)
Notes to Condensed Financial Statements
(Unaudited)
 
11.
Common Stock
 
The following transactions occurred from March 19, 2001 (inception) to March 31, 2013:
 
 
a)
On May 10, 2001, the Company issued 3,600,000 shares of common stock to the Company’s founders for cash of $1.
 
 
b)
On August 10, 2001, the Company issued:
 
 
i)
1,208,332 shares of common stock to the directors of the Company for cash of $1,450,000.

 
ii)
958,334 shares of common stock to Rexgene for cash of $550,000.

 
iii) 
360,000 shares of common stock in a private placement to individual investors for cash of $1,080,000.
 
These share purchases were negotiated by the parties at various dates prior to the August 10, 2001 share issuance date.
 
 
c)
On October 10, 2001, the Company issued 400,000 shares of common stock to Chong Kun Dang Pharmaceutical Corp. (“CKD”) for cash of $479,991 and 400,000 shares of common stock to an individual investor for cash of $479,991.
 
 
d)
On October 10, 2001, the Company issued 200,000 shares of common stock to CKD for cash of $479,985.
 
 
e)
Since inception, the Company’s founders have transferred 800,000 shares of the common stock described in a) to officers and directors of the Company.
 
 
f)
In July 2003, the stockholders described in b) (iii) and e) transferred an aggregate of 1,268,332 shares of common stock to a voting trust.  The trust allows for the unified voting of the stock by the trustees.
 
The appointed trustees are senior management of the Company who, together with their existing shares, control a majority of the voting power of the Company.
 
 
g)
On August 20, 2003, the Company issued 500,000 shares of common stock to KT&G Corporation for cash consideration of $2,000,000.
 
 
h)
On October 29, 2004, an option holder exercised options to purchase shares of common stock for cash of $1,800 and the Company issued an aggregate of 1,500 shares.
 
 
i)
Pursuant to the agreement and plan of merger which occurred on May 13, 2005, (i) each share of the issued and outstanding common stock of Rexahn, Corp (“Rexahn”) (other than dissenting shares) was converted into the right to receive five shares of Rexahn Pharmaceuticals common stock; (ii) each issued, outstanding and unexercised option to purchase a share of Rexahn common stock was converted into an option to purchase five shares of Rexahn Pharmaceuticals’ common stock and (iii) the par value of Rexahn’s common stock was adjusted to reflect the par value of Corporate Road Show Com Inc. (“CRS”) common stock. In the acquisition merger, 289,780,000 CRS pre-reverse stock split shares were converted into 2,897,802 post-reverse stock split Rexahn Pharmaceuticals shares, and an additional 500,000 post-reverse stock split Rexahn Pharmaceuticals shares were issued to a former executive of CRS.  All shares and earnings per share information have been retroactively restated in these financial statements.
 
 
j)
On August 8, 2005, the Company issued, in a transaction exempt from registration under the Securities Act of 1993, as amended, 4,175,000 shares of common stock at a purchase price of $2.00 per share.
 
 
k)
On October 3, 2005, the Company issued 7,000 shares of common stock for $21,877 and $7,500 cash in exchange for legal services from W. Rosenstadt and Steve Sanders.
 
 
REXAHN PHARMACEUTICALS, INC.
(A Development Stage Company)
Notes to Condensed Financial Statements
(Unaudited)
 
 
l)
On December 2, 2005, the holders of a convertible note that was issued on August 8, 2005 and, represented $1,300,000 aggregate principal amount, exercised their option to convert the entire principal amount of the note into the Company’s common stock.  Based on a $2.00 per share conversion price, the holders received an aggregate of 650,000 shares.
 
 
m)
On December 27, 2005, option holders exercised options to purchase shares of the Company’s common stock for cash of $9,600 and the Company issued an aggregate of 40,000 shares.
 
 
n)
On February 22, 2006, an option holder exercised options to purchase shares of the Company’s common stock for cash of $1,200 and the Company issued an aggregate of 5,000 shares.
 
 
o)
On April 12, 2006, an option holder exercised options to purchase shares of the Company’s common stock for cash of $3,409 and the Company issued an aggregate of 14,205 shares.  On the same date, the Company agreed to repurchase common stock from the option holder based on the then market price for treasury in exchange for the aggregate purchase price of $28,410 in cash.
 
 
p)
On May 13, 2006, holders of the $3,850,000 convertible notes issued on February 28, 2005, exercised their rights to convert the entire principal amount of the notes into shares of the Company’s common stock.    Based on a $1.00 per share conversion price, the Company issued 3,850,000 shares of common stock in connection with the conversion.
 
 
q)
On October 9, 2006, an option holder exercised options to purchase shares of the Company’s common stock for cash of $2,400 and the Company issued an aggregate of 10,000 shares.
 
 
r)
On November 19, 2006, an option holder exercised options to purchase shares of the Company’s common stock for cash of $1,800 and the Company issued an aggregate of 7,500 shares.
 
 
s)
On December 19, 2006, an option holder exercised options to purchase shares of the Company’s common stock for cash of $6,000 and the Company issued an aggregate of 25,000 shares.
 
 
t)
On April 18, 2007, an option holder exercised options to purchase shares of the Company’s common stock for cash of $14,400 and the Company issued an aggregate of 18,000 shares.
 
 
u)
On July 23, 2007, an option holder exercised options to purchase shares of the Company’s common stock for cash of $12,000 and the Company issued an aggregate of 15,000 shares.
 
 
v)
On September 27, 2007, an option holder exercised options to purchase shares of the Company’s common stock for cash of $15,600 and the Company issued an aggregate of 19,500 shares.
 
 
REXAHN PHARMACEUTICALS, INC.
(A Development Stage Company)
Notes to Condensed Financial Statements
(Unaudited)
 
 
w)
On December 18, 2007, the Company issued 4,857,159 units at a price $1.40 per share for total gross proceeds of $6,800,023.  Investors also were issued one warrant for every five shares purchased.  One warrant will entitle the holder to purchase an additional share of common stock at a purchase price of $1.80 at any time over a period of three years from the date of the closing. The Company has recorded the warrants as liabilities at fair value as disclosed in Note 13.  Private placement closing costs of $139,675 were recorded as a reduction of the issuance proceeds.  Private placements costs also consist of 107,144 warrants, valued at $138,326, and were recorded as a financing expense. The Company extended anti-dilutive protection to the investors. The anti-dilution protection provision is structured in a way that is designed to protect a holder’s position from being diluted and contains a price protection based on a mathematical calculation, and is recorded as a liability at fair value, as disclosed in Note 14.   The Company revalues these liabilities each reporting period, with the unrealized gain (loss) recorded as other income (expense).
 
A summary of the allocation of the proceeds of the offering is shown below:

Gross Proceeds:
  $ 6,800,023  
         
Allocated to liabilities:
       
Warrant liabilities
    1,392,476  
Less: Warrants allocated to placement agent
    (138,326 )
Put feature on common stock
    4,401,169  
Total allocated to liabilities
    5,655,319  
         
Allocated to equity:
       
Common stock and additional paid-in capital
    1,144,704  
         
         
Total allocated gross proceeds:
  $ 6,800,023  
 
 
x)
On December 27, 2007, an option holder exercised options to purchase shares of the Company’s common stock for cash of $18,000 and the Company issued an aggregate of 75,000 shares.
 
 
REXAHN PHARMACEUTICALS, INC.
(A Development Stage Company)
Notes to Condensed Financial Statements
(Unaudited)
 
 
y)
On March 20, 2008, the Company issued 642,858 units consisting of one share of the Company’s common stock and one warrant for every five common shares purchased in a private placement at a price of $1.40 per unit for total gross proceeds of $900,001.  One warrant will entitle the holder to purchase an additional share of common stock at a price of $1.80 at any time over a period of three years from the date of the private placement, and is recorded as a liability at fair value.  The Company extended anti-dilution protection to investors, and the provision is structured in a way that is designed to protect the holder’s position from being diluted and contains a price based on a mathematical computation.
 
A summary of the allocation of the proceeds of the offering is shown below:

Gross Proceeds:
  $ 900,001  
         
Allocated to liabilities:
       
Warrant liabilities
    190,917  
Put feature on common stock
    553,569  
Total allocated to liabilities
    744,486  
         
Allocated to common stock and additional paid-in capital
    155,515  
         
Total allocated gross proceeds:
  $ 900,001  
 
 
z)
On May 30, 2008, an option holder exercised options to purchase shares of the Company’s common stock for cash of $7,200 and the Company issued an aggregate of 30,000 shares.
 
 
aa)
On June 2, 2008, an option holder exercised options to purchase shares of the Company’s common stock for cash of $12,000 and the Company issued an aggregate of 50,000 shares.
 
 
ab)
On June 30, 2008, an option holder exercised options to purchase shares of the Company’s common stock for cash of $12,000 and the Company issued an aggregate of 10,000 shares.
 
 
REXAHN PHARMACEUTICALS, INC.
(A Development Stage Company)
Notes to Condensed Financial Statements
(Unaudited)
 
 
ac)
On June 5, 2009 the Company closed on a purchase agreement to issue 2,857,143 shares of common stock at a price of $1.05 per share to an institutional investor for total gross proceeds of $3,000,000 and incurred $289,090 of stock issuance costs.  The investor was also issued:
 
 
1)
Series I warrants to purchase 2,222,222 shares of common stock at a purchase price of $1.05 per share at any time before September 3, 2009;

 
2)
Series II warrants to purchase 1,866,666 shares of common stock at a purchase price of $1.25 per share at any time from December 3, 2009 to June 5, 2012; and

 
3)
Series III warrants to purchase 1,555,555 shares of common stock at a purchase price of $1.50 per share at any time from December 3, 2009 to June 5, 2014.
 
The closing costs included 142,857 warrants valued at $122,257 and were recorded as a financing expense. All warrants issued from this purchase agreement are recorded as liabilities at fair value.
 
The Company incurred a derivative loss upon issuance of these warrants, as the fair value of the warrants at inception was greater than the proceeds received from the investor.  The derivative loss was combined with unrealized gains (losses) for the year ended December 31, 2009.
 
A summary of the allocation of the proceeds of the offering is shown below:
 
Gross Proceeds:
  $ 3,000,000  
         
Allocated to liabilities:
       
Warrant liabilities
    3,451,194  
Less: Warrants allocated to placement agent
    (122,257 )
Total allocated to liabilities
    3,328,937  
         
Allocated to equity:
       
Common stock and additional paid-in capital
    -  
         
Allocated to expense:
       
Derivative loss at inception
    (328,937 )
         
Total allocated gross proceeds:
  $ 3,000,000  
 
 
ad)
On June 9, 2009, the Company issued 1,833,341 shares of common stock and 862,246 warrants to purchase common stock at a purchase price of $1.05 per share to existing stockholders pursuant to the anti-dilution protection provisions of the private placements transacted on December 18, 2007 and March 20, 2008.  The fair value of the additional warrants issued was approximately $422,300. 
 
 
ae)
On September 4, 2009, an option holder exercised options to purchase shares of the Company’s common stock for cash of $3,600 and the Company issued an aggregate of 15,000 shares.
 
 
af)
On September 21, 2009, the Company issued 3,102,837 shares of common stock at a purchase price of $1.13 per share to an institutional investor for net proceeds of $3,371,340, which includes $128,659 of stock issuance costs
 
 
 
ag)
On October 23, 2009, the Company closed on a purchase agreement to issue 6,072,383 shares of common stock at a price of $0.82 per share to five institutional investors for gross proceeds of $5,000,000, which includes $351,928 of stock issuance costs.  The investors were also issued warrants to purchase 2,125,334 shares of common stock at a purchase price of $1.00 per share, exercisable on or after the date of delivery until the five-year anniversary, and were recorded as liabilities at fair value. The closing costs included 245,932 warrants valued at $101,693 and were recorded as a financing expense.
 
A summary of the allocation of the proceeds of the offering is shown below:

Gross Proceeds:
  $ 5,000,000  
         
Allocated to liabilities:
       
Warrant liabilities
    1,114,627  
Less: Warrants allocated to placement agent
    (101,693 )
Total allocated to liabilities
    1,012,934  
         
Allocated to equity:
       
Common stock and additional paid-in capital
    3,987,066  
         
         
Total allocated gross proceeds:
  $ 5,000,000  

 
ah)
On October 23, 2009, the Company issued 2,018,143 shares of common stock and 569,502 warrants to purchase common stock at a purchase price of $0.82 per share to existing stockholders pursuant to anti-dilution protection provisions of the private placements transacted on December 24, 2007 and March 20, 2008. The fair value of the additional warrants issued was approximately $476,200.
 
 
ai)
On February 12, 2010, the Company entered into two consulting agreements pursuant to which the Company issued 300,000 shares of common stock upon the execution of the agreements.  Upon the extension of the term, 200,000 shares of common stock for each month will be issued until the termination of services.
 
The following table lists the issuances of shares by the Company under the consulting agreement:
 
Date of Issuance
 
Number of Shares Issued
   
Market Value Per Share
   
Total Market Value
of Share Issuance
 
February 12, 2010
    300,000     $ 1.22     $ 366,000  
May 24, 2010
    200,000       1.40       280,000  
June 15, 2010
    200,000       1.15       230,000  
August 2, 2010
    400,000       1.37       548,000  
September 21, 2010
    200,000       1.20       240,000  
October 21, 2010
    200,000       1.16       232,000  
November 11, 2010
    200,000       1.06       212,000  
                         
Total
    1,700,000             $ 2,108,000  

The market value of these shares was recorded as an expense and is reflected in general and administrative expenses in the Company’s statement of operations.  The agreements were terminated by the Company on November 11, 2010.
 
 
 
aj)
In March 2010, warrant holders exercised their warrants to purchase shares of the Company’s common stock for cash of $1,297,001 and the Company issued an aggregate of 1,197,001 shares.
 
 
ak)
In March 2010, option holders exercised options to purchase shares of the Company’s common stock for cash of $21,240 and the Company issued an aggregate of 48,000 shares.
 
 
al)
In April 2010, warrant holders exercised their warrants to purchase shares of the Company’s common stock for cash of $1,966,375 and the Company issued an aggregate of 1,595,825 shares.
 
 
am)
On April 20, 2010, an option holder exercised options to purchase shares of the Company’s common stock for cash of $86,000 and the Company issued an aggregate of 107,500 shares.
 
 
an)
In May 2010, warrant holders exercised 890,051 cashless warrants to obtain shares of the Company’s common stock and the Company issued an aggregate of 547,674 shares.
 
 
ao)
On June 30, 2010, the Company entered into a purchase agreement to issue 6,666,667 shares of common stock at a price of $1.50 per share to investors for gross proceeds of $10,000,000, which includes $681,773 of stock issuance costs.  The investors were also issued warrants to purchase 2,000,000 shares of common stock at an exercise price of $1.90 per share.  The warrants became immediately exercisable on the date of delivery until the four-year anniversary of the date of issuance.  These warrants were valued at $1,800,800 and recorded as warrant liabilities.  The closing costs included 200,000 warrants valued at $180,080 and were recorded as a financing expense.
 
Gross Proceeds:
  $ 10,000,000  
         
Allocated to liabilities:
       
Warrant liabilities
    1,980,880  
Less: Warrants allocated to placement agent
    (180,080 )
Total allocated to liabilities
    1,800,800  
         
Allocated to equity:
       
Common stock and additional paid-in capital
    8,199,200  
         
Total allocated gross proceeds:
  $ 10,000,000  
 
 
ap) 
In November 2010, warrant holders exercised 936,883 cashless warrants to obtain shares of the Company’s common stock and the Company issued an aggregate of 247,491 shares.
 
 
aq)
In December 2010, warrant holders exercised 530,900 cashless warrants to obtain shares of the Company’s common stock and the Company issued an aggregate of 126,195 shares.
 
 
ar)
On January 19, 2011, the Company issued 2,334,515 shares of common stock at a purchase price of $1.69 per share to an institutional investor for net proceeds of $3,926,397, which includes $23,603 of stock issuance costs.
 
 
as)
On February 15, 2011, a warrant holder exercised warrants to purchase shares of the Company’s common stock for cash of $215,104 and the Company issued 209,042 shares.
 
 
at)
On February 28, 2011, an option holder exercised options to purchase shares of the Company’s common stock for cash of $6,000 and the Company issued 25,000 shares.
 
 
au)
On March 11, 2011, an option holder exercised options to purchase shares of the Company’s common stock for cash of $12,000 and the Company issued 50,000 shares.
 
 
 
av)
On March 28, 2011, warrant holders exercised their warrants to purchase shares of the Company’s common stock for cash of $102,857 and the Company issued 124,917 shares.
 
 
aw)
On March 31, 2011, the Company closed on a purchase agreement to issue 8,333,333 shares of common stock at a price of $1.20 per share to five institutional investors for gross proceeds of $10,000,000, which includes $706,124 of cash stock issuance costs.  The investors were also issued warrants to purchase 3,333,333 shares of common stock at a purchase price of $1.50 per share, exercisable on or after six months after the closing date until the five-year anniversary of the initial exercise date.  These warrants were recorded as liabilities with a fair value of $2,826,666. The closing costs included 208,333 warrants valued at $97,667 and were recorded as a financing expense.
 
A summary of the allocation of the proceeds of the offering is shown below:

Gross Proceeds:
  $ 10,000,000  
         
Allocated to liabilities:
       
Warrant liabilities
    2,924,333  
Less: Warrants allocated to placement agent
    (97,667 )
Total allocated to liabilities
    2,826,666  
         
Allocated to equity:
       
Common stock and additional paid-in capital
    7,173,334  
         
Total allocated gross proceeds:
  $ 10,000,000  
 
 
ax)
In September 2011, an option holder exercised options to purchase shares of the Company’s common stock for cash of $22,040 and the Company issued 28,000 shares.
 
 
ay)
In October 2011, an option holder exercised options to purchase shares of the Company’s common stock for cash of $19,200 and the Company issued 80,000 shares.
 
 
 
az) 
On December 4, 2012 the Company closed on an underwritten public offering to issue and sell 19,130,435 shares of common stock and common stock purchase warrants to purchase up to 10,521,739 shares of common stock.  The common stock and warrants were sold in units, consisting of common stock and a warrant to purchase 0.55 shares of common stock, at a price of $0.33 per share, and the warrants have an exercise price of $0.472 per share.  Pursuant to the underwriting agreement, the Company granted the Underwriters a 45-day option to purchase an additional 2,869,565 shares of Common Stock and warrants to purchase 1,578,261 shares of Common Stock.  On December 4, 2012, the underwriters partially exercised this option, and 869,565 units, consisting of 869,565 shares and 478,261 warrants were issued.  On December 10, 2012, the underwriters exercised the remaining overallotment option, and the Company issued 2,000,000 units, consisting of 2,000,000 shares and 1,100,000 warrants.  The total gross proceeds of the offering was $7,260,000.  The warrants issued are exercisable on the closing date until the five-year anniversary of the closing date, and were recorded as liabilities at fair value.
 
The closing costs of $977,434 included 880,000 warrants valued at $163,096, and $814,338 for underwriter’s discounts and professional and other fees.   Based upon the estimated fair value of the stock and warrants in the units, the Company allocated $332,108 to financing expense, and $645,326 as stock issuance costs.
 
A summary of the allocation of the proceeds of the offering is shown below:

Gross Proceeds:
  $ 7,260,000  
         
Allocated to liabilities:
       
Warrant liabilities
    2,637,216  
Less: Warrants allocated to placement agent
    (163,096 )
Total allocated to liabilities
    2,474,120  
         
         
Allocated to equity:
       
Common stock and additional paid-in capital
    4,785,880  
         
Total allocated gross proceeds:
  $ 7,260,000  
 
 
ba) 
On December 7, 2012, the Company issued 2,083,333, shares of common stock at a purchase price of $0.36 per share to an institutional investor for gross proceeds of $750,000. The total stock issuance costs were $63,658.
 
 
12.
Stock-Based Compensation
 
On August 5, 2003, the Company established a stock option plan (the “Plan”).  Under the Plan, the Company grants stock options to key employees, directors and consultants of the Company.  For all grants prior to September 12, 2005 and the majority of grants to employees of the Company after September 12, 2005, the vesting period is 30% on the first anniversary of the grant date, an additional 30% on the second anniversary and the remaining 40% on the third anniversary.  Options expire between five and ten years from the date of grant.
 
For grants to non-employee consultants of the Company after September 12, 2005, the vesting period is between one to three years, subject to the fulfillment of certain conditions in the individual stock option grant agreements, or 100% upon the occurrence of certain events specified in the individual stock option grant agreements.  Options authorized for issuance under the Plan total 17,000,000 after giving effect to an amendment to the Plan approved at the Annual Meeting of the Stockholders of the Company on June 2, 2006.  At March 31, 2013, 6,828,000 shares of common stock were available for issuance.
 
Prior to adoption of the Plan, the Company made restricted stock grants.  During 2003 all existing restricted stock grants were converted to stock options.  The converted options maintained the same full vesting period as the original restricted stock grants.
 
Accounting for Employee Awards
 
The Company’s results of operations for the three months ended March 31, 2013 and 2012 include share-based employee compensation expense totaling $366,111 and $59,815 respectively.   Such amounts have been included in the statement of operations in general and administrative and research and development expenses.  No income tax benefit has been recognized in the statement of operations for share-based compensation arrangements as the Company has provided for a 100% valuation allowance on its deferred tax assets.
 
Employee stock option compensation expense is the estimated fair value of options granted amortized on a straight-line basis over the requisite vesting service period for the entire portion of the award.
 
Accounting for Non-Employee Awards
 
Stock compensation expenses related to non-employee options were $5,840 and $31,359 for the three months ended March 31, 2013 and 2012, respectively.  Such amounts have been included in the statement of operations in general and administrative and research and development expenses.
 
 
Summary of Stock Compensation Expense Recognized
 
Total stock-based compensation recognized by the Company in the three months ended March 31, 2013 and 2012, and the period from inception (March 19, 2001) to March 31, 2013 is as follows:
 
               
Cumulative from
 
   
Three Months Ended March 31,
   
March 19, 2001
(Inception) to
 
   
2013
   
2012
   
March 31, 2013
 
Statement of operations line item:
                 
General and administrative:
                 
Payroll
  $ 350,379     $ 39,317     $ 2,971,808  
Consulting and other professional fees
    3,893       23,222       814,348  
Research and development:
                       
Payroll
    15,732       20,498       1,063,789  
Consulting and other professional fees
    1,947       8,137       1,330,622  
                         
Total
  $ 371,951     $ 91,174     $ 6,180,567  
 
Summary of Stock Option Transactions
 
There were 1,200,000 stock options granted at an exercise price of $0.37 with a fair value of $320,465 and 550,000 stock options granted at an exercise price of $0.31 with a fair value of $122,497 during the three months ended March 31, 2013.  The 1,200,000 options granted at an exercise price of $0.37 were awarded to our new Chief Executive Officer, who joined the Company in February 2013.  Per that employment agreement, these options vested immediately, and therefore, the entire fair value of those options were expensed upon grant. There were 75,000 stock options granted at an exercise price of $0.48 and a fair value of $26,835 during the three months ended March 31, 2012.
 
The fair value of options at the date of grant was estimated using the Black-Scholes option pricing model.  The Company took into consideration guidance under ASC 718, “Compensation-Stock Compensation” and SAB 107 when reviewing and updating assumptions.  The expected volatility is based upon historical volatility of the Company’s stock.  The expected term is based upon the simplified method as allowed under SAB 107.
 
 
The assumptions made in calculating the fair values of options are as follows:

   
Three Ended March 31,
   
2013
 
2012
Black-Scholes weighted average assumptions
           
Expected dividend yield
    0 %     0 %
Expected volatility
    95-96 %     101 %
Risk free interest rate
    0.75-0.85 %     0.89 %
Expected term (in years)
 
5 years
   
5 years
 
 
The following table summarizes the employee and non-employee share-based transactions:
 
   
2013
   
2012
 
   
Number of
Options
   
Weighted
Average Exercise
Price
   
Number of
Options
   
Weighted
Average Exercise
Price
 
Outstanding at
                       
January 1
    7,741,795     $ 1.03       7,646,795     $ 1.05  
Granted
    1,750,000       0.35       75,000       0.48  
Exercised
    -       -       -       -  
Cancelled
    -       -       (41,000 )     1.54  
                                 
Outstanding at March 31
    9,491,795     $ 0.90       7,680,795     $ 1.04  

The following table summarizes information about stock options outstanding as of March 31, 2013 and December 31, 2012.

   
Number of
Options
   
Weighted
Average Exercise
Price
   
Weighted
Average
Remaining
Contractual
Term
   
Aggregate
Intrinsic Value
 
Outstanding at
                       
March 31, 2013
    9,491,795     $ 0.90    
4.8 years
    $ 41,706  
                               
Exercisable at
                             
March 31, 2013
    8,569,295     $ 0.95    
4.3 years
    $ 41,706  
                               
Outstanding at
                             
December 31, 2012
    7,741,795     $ 1.03    
3.9 years
    $ 41,706  
                               
Exercisable at
                             
December 31, 2012
    7,176,795     $ 1.04    
3.5 years
    $ 41,706  
 
There were no options exercised during the three months ended March 31, 2013 and 2012.  The weighted average fair value of the options vested was $0.35 and $0.95 for the three months ended March 31, 2013 and 2012, respectively.
 
 
A summary of the Company’s unvested shares as of March 31, 2013 and changes during the three months ended March 31, 2013 is presented below:

   
2013
 
   
Number of Options
 
Weighted Average Fair Value at
Grant Date
 
Unvested at January 1, 2013
    565,000     $ 0.66  
Granted
    1,750,000     $ 0.25  
Vested
    (1,392,500 )   $ 0.35  
Cancelled
    -     $ -  
                 
Unvested at March 31, 2013
    922,500     $ 0.36  
 
As of March 31, 2013 and December 31, 2012, there was $248,350 and $172,532 of total unrecognized compensation cost, respectively, related to all unvested stock options, which is expected to be recognized over a weighted average vesting period of 2.1 years and 1.0 years, respectively.
 
13.
Warrants
 
As of March 31, 2013, warrants to purchase 21,656,142 shares were outstanding, having exercise prices ranging from $0.41 to $1.90 and expiration dates ranging from August 8, 2013 to December 4, 2017.
 
   
2013
   
2012
 
   
Number of
warrants
 
Weighted average
exercise price
   
Number of
warrants
 
Weighted average
exercise price
 
Balance, January 1
    21,656,142     $ 0.89       8,676,142     $ 1.53  
Issued during the period
    -       -       -     $ -  
Exercised during the period
    -       -       -     $ -  
Expired during the period
    -       -       -     $ -  
                                 
Balance, March 31
    21,656,142     $ 0.89       8,676,142     $ 1.53  
 
At March 31, 2013 and December 31, 2012, the average remaining contractual life of the outstanding warrants was 3.6 and 3.8 years, respectively.

The warrants, which were issued to investors in the December 2007, March 2008, May 2009, October 2009, June 2010, March 2011 and December 2012 offerings, contain a provision for net cash settlement in the event that there is a fundamental transaction (contractually defined as a merger, sale of substantially all assets, tender offer, or share exchange).   If a fundamental transaction occurs in which the consideration issued consists principally of cash or stock in a non-public company, then the warrant holder has the option to receive cash, equal to the fair value of the remaining unexercised portion of the warrant.  Due to this contingent redemption provision, the warrants require liability classification in accordance with ASC 480 and are recorded at fair value.  In addition, the warrants issued in the May 2009, October 2009, June 2010, March, 2011 and December 2012 offerings contain a cashless exercise provision that is exercisable only in the event that a registration statement is not effective, which provision may not be operative if an effective registration statement is not available because of an exemption under the U.S. Securities laws may not be available to issue unregistered shares.  As a result, net cash settlement may be required.

ASC 820 provides requirements for disclosure of liabilities that are measured at fair value on a recurring basis in periods subsequent to the initial recognition.  Fair values for warrants are determined using the Binomial Lattice (“Lattice”) valuation technique. The Lattice model provides for dynamic assumptions regarding volatility and risk-free interest rates within the total period to maturity. Accordingly, within the contractual term, the Company provided multiple date intervals over which multiple volatilities and risk free interest rates were used. These intervals allow the Lattice model to project outcomes along specific paths which consider volatilities and risk free rates that would be more likely in an early exercise scenario.
 
 
Significant assumptions are determined as follows:
Trading market values—published trading market values;
Exercise price—Stated exercise price;
Term—remaining contractual term of the warrant;
Volatility—Historical trading volatility for periods consistent with the remaining terms;
Risk-free rate—Yields on zero coupon government securities with remaining terms consistent with the remaining terms of the warrants.

Due to the fundamental transaction provision, which could provide for early redemption of the warrants, the model also considered the probability the Company would enter into a fundamental transaction during the remaining term of the warrant. Since the Company is still in its development stage and is not yet achieving positive cash flow, management believes the probability of a fundamental transaction occurring over the term of the warrant is unlikely and therefore estimates the probability of entering into a fundamental transaction to be 5%.  For valuation purposes, the Company also assumed that if such a transaction did occur, it was more likely to occur towards the end of the term of the warrants.

The warrants issued in December 2007 and March 2008 were not only subject to traditional anti-dilution protection, such as stock splits and dividends, but they were also subject to down-round anti-dilution protection. Accordingly, if the Company sold common stock or common stock indexed financial instruments below the stated exercise price, the exercise price related to these warrants will adjust to that lower amount.  The Lattice model used to value the warrants with down-round anti-dilution protection provides for multiple, probability-weighted scenarios at the stated exercise price and at five additional decrements/scenarios on each valuation date in order to encompass the value of the anti-dilution provisions in the estimate of fair value of the warrants. Calculations were performed at the stated exercise price and at five additional decrements/scenarios on each valuation date. The calculations provided for multiple, probability-weighted scenarios reflecting decrements that result from declines in the market prices. Decrements are predicated on the trading market prices in decreasing ranges below the contractual exercise price. For each valuation date, multiple Binomial Lattice calculations were performed which were probability weighted by considering both the Company’s (i) historical market pricing trends, and (ii) an outlook for whether or not the Company may need to issue equity or equity-indexed instruments in the future with a price less than the current exercise price.

The significant unobservable inputs used in the fair value measurement of the warrants include management’s estimate of the probability that a fundamental transaction may occur in the future.  Significant increases (decreases) in the probability of occurrence would result in a significantly higher (lower) fair value measurement.
 
 
The following table summarizes the fair value of the warrants as of the respective balance sheet or transaction dates:

   
Fair Value as of:
 
Warrant Issuance:
 
March 31, 2013
   
December 31, 2012
   
Transaction Date
 
December 18, 2007 financing
  $ -     $ -     $ 1,392,476  
March 20, 2008 financing
    -       -       190,917  
June 5, 2009 financing:
                       
Series I warrants
    -       -       707,111  
Series II warrants
    -       -       1,315,626  
Series III warrants
    5,289       35,311       1,306,200  
Warrants to placement agent
    634       3,489       122,257  
October 23, 2009 financing:
                       
Warrants to institutional investors
    32,059       73,454       1,012,934  
Warrants to placement agent
    -       41       101,693  
June 30, 2010 financing
                       
Warrants to institutional investors
    3,400       12,200       1,800,800  
Warrants to placement agent
    -       20       180,080  
March 31, 2011 financing:
                       
Warrants to institutional investors
    209,667       306,333       2,826,666  
Warrants to placement agent
    -       83       97,667  
December 4, 2012 financing:
                       
Warrants to institutional investors
    2,096,930       2,263,910       2,474,120  
Warrants to placement agent
    125,184       147,224       163,096  
Total:
  $ 2,473,163     $ 2,842,065     $ 13,691,643  
 
 
The following table summarizes the number of shares indexed to the warrants as of the respective balance sheet or transaction dates:

   
Number of Shares indexed as of:
 
Warrant Issuance
 
March 31, 2013
   
December 31, 2012
   
Transaction Date
 
December 18, 2007 financing
    -       -       1,078,579  
March 20, 2008 financing
    -       -       128,572  
June 5, 2009 financing:
                       
Series I warrants
    -       -       2,222,222  
Series II warrants
    -       -       1,866,666  
Series III warrants
    1,555,555       1,555,555       1,555,555  
Warrants to placement agent
    132,143       132,143       142,857  
October 23, 2009 financing:
                       
Warrants to institutional investors
    1,228,333       1,228,333       2,125,334  
Warrants to placement agent
    18,445       18,445       245,932  
June 30, 2010 financing
                       
Warrants to institutional investors
    2,000,000       2,000,000       2,000,000  
Warrants to placement agent
    200,000       200,000       200,000  
March 31, 2011 financing:
                       
Warrants to institutional investors
    3,333,333       3,333,333       3,333,333  
Warrants to placement agent
    208,333       208,333       208,333  
December 4, 2012 financing:
                       
Warrants to institutional investors
    12,100,000       12,100,000       12,100,000  
Warrants to placement agent
    880,000       880,000       880,000  
Total:
    21,656,142       21,656,142       28,087,383  
 
The assumptions used in calculating the fair values of the warrants are as follows:

December 18, 2007 financing:
 
March 31, 2013
   
December 31, 2012
   
Transaction Date
 
Trading market prices
  $ -     $ -     $ 1.75  
Estimated future volatility
    -       -       143 %
Dividend
    -       -       -  
Estimated future risk-free rate
    -       -       3.27 %
Equivalent volatility
    -       -       106 %
Equivalent risk-free rate
    -       -       3.26 %
Estimated additional shares to be issued upon dilutive event
    -       -       98,838  
 
 
March 20, 2008 financing:
 
March 31, 2013
   
December 31, 2012
   
Transaction Date
 
Trading market prices
  $ -     $ -     $ 2.14  
Estimated future volatility
    -       -       142 %
Dividend
    -       -       -  
Estimated future risk-free rate
    -       -       1.95 %
Equivalent volatility
    -       -       97 %
Equivalent risk-free rate
    -       -       1.31 %
Estimated additional shares to be issued upon dilutive event
    -       -       7,479  
 
June 5, 2009 financing:
 
March 31, 2013
   
December 31, 2012
   
Transaction Date
 
Trading market prices
  $ 0.31     $ 0.31     $ 1.14  
Estimated future volatility
    100 %     100 %     100 %
Dividend
    -       -       -  
Estimated future risk-free rate
    0.14 %     0.16 %     0.63-4.31 %
Equivalent volatility
    70 %     92 %     103-117 %
Equivalent risk-free rate
    0.10 %     0.11 %     0.20-1.44 %
 
October 23, 2009 financing:
 
March 31, 2013
   
December 31, 2012
   
Transaction Date
 
Trading market prices
  $ 0.31     $ 0.31     $ 0.69  
Estimated future volatility
    100 %     100 %     100 %
Dividend
    -       -       -  
Estimated future risk-free rate
    0.14-0.36 %     0.16-0.34 %     2.63-3.80 %
Equivalent volatility
    44-76 %     74-93 %     98-99 %
Equivalent risk-free rate
    0.06-0.11 %     0.06-0.13 %     0.93-1.16 %
 
June 30, 2010 financing:
 
March 31, 2013
   
December 31, 2012
   
Transaction Date
 
Trading market prices
  $ 0.31     $ 0.31     $ 1.43  
Estimated future volatility
    100 %     100 %     100 %
Dividend
    -       -       -  
Estimated future risk-free rate
    0.14 %     0.16-0.34 %     1.78 %
Equivalent volatility
    44-69 %     74-75 %     98 %
Equivalent risk-free rate
    0.06-0.10 %     0.06 %     0.59 %
 
March 31, 2011 financing:
 
March 31, 2013
   
December 31, 2012
   
Transaction Date
 
Trading market prices
  $ 0.31     $ 0.31     $ 1.18  
Estimated future volatility
    87-100 %     93-100 %     100 %
Dividend
    -       -       -  
Estimated future risk-free rate
    0.14-0.58 %     0.16-0.58 %     1.32-3.64 %
Equivalent volatility
    44-79 %     74-89 %     79-96 %
Equivalent risk-free rate
    0.06-0.21 %     0.06-0.23 %     0.39-1.09 %
 
December 4, 2012 financing:
 
March 31, 2013
   
December 31, 2012
   
Transaction Date
 
Trading market prices
  $ 0.31     $ 0.31     $ 0.30-0.33  
Estimated future volatility
    88-100 %     85-100 %     100 %
Dividend
    -       -       -  
Estimated future risk-free rate
    0.58-1.39 %     0.58-1.26 %     0.52-1.065 %
Equivalent volatility
    79-84 %     88 %     88-90 %
Equivalent risk-free rate
    0.20-0.29 %     0.21-0.32 %     0.22-0.31 %
 
 
Changes in the fair value of the warrant liabilities, carried at fair value, as reported as “unrealized gain (loss) on fair value of warrants” in the statement of operations:
 
   
Three Months
Ended 
March 31, 2013
   
Three Months
 Ended 
March 31, 2012
   
Cumulative from
March 19, 2001
(Inception) to 
March 31, 2013
 
December 18, 2007 financing
  $ -     $ -     $ 50,722  
March 20, 2008 financing
    -       -       160,063  
June 5, 2009 financing:
                       
Series I warrants
    -       -       707,111  
Series II warrants
    -       -       (2,191,175 )
Series III warrants
    30,022       (14,622 )     1,300,911  
Warrants to placement agent
    2,855       (1,665 )     107,243  
Derivative loss at inception
    -       -       (328,937 )
October 23, 2009 financing:
                       
Warrants to institutional investors
    41,395       (42,131 )     (68,365 )
Warrants to placement agent
    41       (728 )     (135,938 )
June 30, 2010 financing
                       
Warrants to institutional investors
    8,800       (17,800 )     1,797,400  
Warrants to placement agent
    20       (20 )     180,080  
March 31, 2011 financing:
                       
Warrants to institutional investors
    96,666       (184,333 )     2,616,999  
Warrants to placement agent
    83       (562 )     97,667  
December 4, 2012 financing:
                       
Warrants to institutional investors
    166,980       -       377,190  
Warrants to placement agent
    22,040       -       37,912  
Total:
  $ 368,902     $ (261,861 )   $ 4,708,883  
 
14.
Put feature on Common Stock

The Anti-dilution provision extended in the December 2007 and March 2008 financings is a financial instrument separate and apart from the share. It is a freestanding written put (a put on the Company’s common stock).  As an enterprise value put, the contracts’ value moves inversely with the value of the underlying common stock which, under ASC 480, is not consistent with the general concepts or criterion for equity classified financial instruments. Accordingly, the written put was required to be classified as a liability under ASC 480 and recorded at fair value each reporting period, while the common stock achieved equity classification. Changes in the fair value of the anti-dilution make-whole provision are reported as “unrealized gain on fair value of put feature on common stock.”

The anti-dilution make-whole provisions associated with the common stock, were valued using a probability-weighting of put values provided by the Lattice model.  Additional value would result from the put upon an increase in the exercise price or upon decrease of the trading market price in the future. Since the exercise price is based on the actual sales price of the stock issued, it is not subject to adjustment unless there is an actual dilutive event. Therefore, the mechanism for determining the value of the put was to adjust the stock price input into the Lattice model based on the Company’s estimated future stock price.  A Random Walk Brownian Motion Stochastic Process (“Brownian”) technique was used to estimate the market price at several points in the future (e.g. at inception, 6 months, 12 months, 18 months and 24 months) over the term of the put to determine if the stock price will be expected to decrease over the related interval of time. Brownian is a continuous stochastic process that is widely used in financing for modeling random behavior that evolves over time, and a stochastic process is a sequence of events or paths generated by probabilistic laws. At each interval, the Brownian technique was run and the simulation returned the mean stock price (the “expected stock price”).
 
 
Expected stock prices returned from the stochastic model were then input into the Lattice model to provide a put value at each of the expected prices and these values were probability weighted to determine the overall fair value of the anti-dilution make-whole provision. The term was based on the remaining term of the put (two years at inception) and the inputs for volatility and interest rate were based on projected volatility and interest rate in the future over the remaining term.
 
The following table summarizes the fair value of the Anti-dilution provision recorded at fair value as liabilities:
Fair Values:
 
March 31, 2013
   
December 31, 2012
   
Transaction Date
 
December 18, 2007 financing
  $ -     $ -     $ 4,401,169  
March 20, 2008 financing
    -       -       553,569  
Total:
  $ -     $ -     $ 4,954,738  
 
The following table summarizes the number of shares indexed to the Anti-dilution provision at the respective balance sheet or transaction dates:

Number of Shares indexed:
 
March 31, 2013
   
December 31, 2012
   
Transaction Date
 
December 18, 2007 financing
    -       -       4,857,159  
March 20, 2008 financing
    -       -       642,858  
Total:
    -       -       5,500,017  

The following table reflects the fair values of the common stock anti-dilution make-whole provisions recorded as liabilities and significant assumptions used in the valuation:
 
December 18, 2007 financing:
 
March 31, 2013
   
December 31, 2012
   
Transaction Date
 
Trading market prices
  $ -     $ -     $ 1.75  
Estimated future stock price
    -       -     $ 0.98-1.75  
Estimated future volatility
    -       -       143 %
Dividend
    -       -       -  
Estimated future risk-free rate
    -       -       3.14 %
 
March 20, 2008 financing:
 
March 31, 2013
   
December 31, 2012
   
Transaction Date
 
Trading market prices
  $ -     $ -     $ 2.14  
Estimated future stock price
    -       -     $ 1.36-2.10  
Estimated future volatility
    -       -       142 %
Dividend
    -       -       -  
Estimated future risk-free rate
    -       -       1.85 %
 
Since the Anti-dilution provisions expired on December 18, 2009 and March 20, 2010, there is no liability as of March 31, 2013, or no changes in the fair value for the three months ended March 31, 2013 and 2012.
 
 
Changes in the fair value of the Anti-dilution provision, carried at fair value, as reported as “unrealized gain on fair value of put feature on common stock” in the statement of operations:
 
   
Three Months Ended
March 31, 2013
   
Three Months Ended
March 31, 2012
   
Cumulative from
March 19, 2001
(Inception) to
March 31, 2013
 
December 18, 2007 financing
  $ -     $ -     $ 2,148,418  
March 20, 2008 financing
    -       -       167,121  
Total:
  $ -     $ -     $ 2,315,539  
 
15.
Income Taxes
 
No provision for Federal and State income taxes was required for the three months ended March 31, 2013 and 2012 due to the Company’s operating losses and increased deferred tax asset valuation allowance.  At March 31, 2013 and December 31, 2012, the Company has unused net operating loss carry-forwards of approximately $63,280,000 and $61,780,000 which expire at various dates through 2033.  Some of this amount may be subject to annual limitations under certain provisions of the Internal Revenue Code related to “changes in ownership.”
 
As of March 31, 2013 and December 31, 2012, the deferred tax assets related to the aforementioned carry-forwards have been fully offset by valuation allowances, since significant utilization of such amounts is not presently expected in the foreseeable future.
 
Deferred tax assets and valuation allowances consist of:
 
   
March 31,
2013
   
December 31,
2012
 
             
Net Operating Loss Carryforwards
  $ 24,679,200       24,094,200  
Stock Option Expense
    1,988,000       1,843,000  
Book tax differences on assets and liabilities
    344,700       352,500  
Valuation Allowance
    (27,011,900 )     (26,289,700 )
                 
Net Deferred Tax Assets
  $ -     $ -  
 
The Company files income tax returns in the U.S. Federal and Maryland state jurisdictions.  Tax years for fiscal 2009 through 2013 are open and potentially subject to examination by the Federal and Maryland state taxing authorities.
 
 
16.
Commitments and Contingencies
 
 
a)
The Company has contracted with various vendors to provide research and development services. The terms of these agreements usually require an initial fee and monthly or periodic payments over the term of the agreement, ranging from 2 months to 36 months. The costs to be incurred are estimated and are subject to revision. As of March 31, 2013, the total estimated cost to be incurred under these agreements was approximately $20,042,152 and the Company had made payments totaling $18,018,563 since inception under the terms of the agreements.  All of these agreements may be terminated by either party upon appropriate notice as stipulated in the respective agreements.
 
 
b)
The Company and four of its key executives currently have outstanding employment agreements, including two agreements that were entered into during the quarter ending March 31, 2013.  The agreements result in annual commitments for each key executive of $350,000, $285,000, $250,000, and $200,000.
 
 
c)
On June 22, 2009, the Company entered into a License Agreement with Korea Research Institute of Chemical Technology (“KRICT”) to acquire the rights to all intellectual properties related to Quinoxaline-Piperazine derivatives that were synthesized under a Joint Research Agreement.  The initial license fee was $100,000, all of which was paid as of December 31, 2009.  The agreement with KRICT calls for a one-time milestone payment of $1,000,000 within 30 days after the first achievement of marketing approval of the first commercial product arising out of or in connection with the use of KRICT’s intellectual properties.  As of March 31, 2013, the milestone has not occurred.
 
 
d)
On June 29, 2009, the Company signed a five year commercial lease agreement for 5,466 square feet of office space in Rockville, Maryland commencing on June 29, 2009.  The lease agreement requires annual base rent with increases over the next five years.  Under the lease agreement, the Company pays its allocable portion of real estate taxes and common area operating charges. Rent paid under the Company’s lease during the three months ended March 31, 2013 and 2012 was $40,199 and $39,219, respectively.
 
Future rental payments over the next five years and thereafter are as follows:
 
2013
  $ 122,607  
2014
    82,408  
Total
  $ 205,015  
 
In connection with the lease agreement, the Company issued a letter of credit of $100,000 in favor of the lessor.  On August 2, 2010, and July 1, 2011 the letter of credit was amended and reduced to $50,000 and $37,500, respectively.  The Company has restricted cash equivalents of the same amount for the letter of credit.
 
 
 
e)
On September 21, 2009, the Company closed on a securities purchase agreement with Teva, under which Teva purchased 3,102,837 shares of our common stock for $3.5 million. Contemporaneous with the execution and delivery of this agreement, the parties executed a RELO pursuant to which the Company agreed to use $2,000,000 from the gross proceeds of the issuance and sale of shares to Teva to fund a research and development program for the pre-clinical development of RX-3117.  On January 19, 2011, the Company entered into a second amendment to the securities purchase agreement (the “Second Amendment”) in which Teva purchased 2,334,515 shares of the common stock of the Company for gross proceeds of $3,950,000, which the Company agreed to use for the further preclinical development of RX-3117.  On December 7, 2012, the Teva exercised its option to purchase $750,000 of common stock, and the Company issued Teva 2,083,333 shares.  This constituted the third and final closing agreed to in the securities purchase agreement, and the use of these funds is not restricted by the Company. On December 27, 2012 the Company received funds from Teva in accordance with a second amendment to the RELO agreement, entered into on November 27, 2012 in which Teva has provided the Company with an additional $926,000 of research funding restricted for the development of RX-3117.  The Company did not issue equity for this transaction.
 
The table below summarizes the investments made under the securities purchase agreement and RELO:

Date of Investment
 
Investment
Amount
   
Shares Issued
   
Proceeds
Remaining in
Restricted
Cash as of
3/31/13
   
Deferred
Research and
Development
Arrangement
Balance at
3/31/13
 
9/21/2009
  $ 3,500,000       3,102,837     $ -     $ -  
1/19/2011
    3,950,000       2,334,515       178,301       -  
12/7/2012
    750,000       2,083,333       -       -  
12/27/2012
    926,000       -       741,379       741,379  
Total
  $ 9,126,000       7,520,685     $ 919,680     $ 741,379  
 
 
f)
The Company has a 401(k) plan established for its employees.  The Company elected to match 100% of the first 3% of the employee’s compensation plus 50% of an additional 2% of the employee’s deferral. Expense related to this matching contribution aggregated $17,716 and $18,465 for the three months ended March 31, 2013, and 2012, respectively.
 
 
g)
On May 30, 2012 and June 22, 2011, the Company signed a one year renewal to use lab space commencing on July 1, 2012 and 2011, respectively.  The lease requires monthly rental payments of $4,554.  Rent paid under the Company’s lease during the three months ended March 31, 2013 and 2012 was $13,662.
 
 
17.
Fair Value Measurements
 
ASC 820 defines fair value 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, not adjusted for transaction costs.  ASC 820 also establishes a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value into three broad levels giving the highest priority to quoted prices in active markets for identical assets or liabilities (Level 1) and the lowest priority to unobservable inputs (Level 3).

The three levels are described below:

             
Level 1 Inputs 
Unadjusted quoted prices in active markets for identical assets or liabilities that is accessible by the Company;
       
 
Level 2 Inputs
Quoted prices in markets that are not active or financial instruments for which all significant inputs are observable, either directly or indirectly;
       
 
Level 3 Inputs
Unobservable inputs for the asset or liability including significant assumptions of the Company and other market participants.
 
The following tables present assets and liabilities that are measured at fair value on a recurring basis and are categorized using the fair value hierarchy.  The fair value hierarchy has three levels based on the reliability of the inputs used to determine fair value.
 
   
Fair Value Measurements at March 31, 2013
 
   
Total
   
Level 1
   
Level 2
   
Level 3
 
Assets:
                       
Restricted Cash Equivalents
  $ 957,180     $ 919,680     $ 37,500     $ -  
Marketable Securities
    100,000       100,000       -       -  
Total Assets:
  $ 1,057,180     $ 1,019,680     $ 37,500     $ -  
                                 
Liabilities:
                               
Warrant Liabilities
  $ 2,473,163       -       -     $ 2,473,163  
 
   
Fair Value Measurements at December 31, 2012
 
   
Total
   
Level 1
   
Level 2
   
Level 3
 
Assets:
                       
Restricted Cash Equivalents
  $ 1,091,801     $ 1,054,301     $ 37,500     $ -  
Marketable Securities
    100,000       100,000       -       -  
Total Assets:
  $ 1,191,801     $ 1,154,301     $ 37,500     $ -  
                                 
Liabilities:
                               
Warrant Liabilities
  $ 2,842,065       -       -     $ 2,842,065  
 
 
As of March 31, 2013 and December 31, 2012, the Company’s restricted cash equivalents are comprised of the following:

 
a) 
Money market funds valued at the net asset value of shares held by the Company and is classified within level 1 of the fair value hierarchy;
 
 
b) 
Certificate of deposit valued based upon the underlying terms of a letter of credit, as disclosed in Note 16, and classified within level 2 of the fair value hierarchy.
 
Marketable securities consist of state authority and municipal security fund bonds which are valued at fair value and classified within level 1 of the fair value hierarchy.

The fair value methodology for the warrant liabilities is disclosed in Note 13.

The carrying amounts reported in the financial statements for cash and cash equivalents (Level 1), prepaid expenses, and other current assets and accounts payable and accrued expenses approximate fair value because of the short term maturity of these financial instruments.

The following table sets forth a reconciliation of changes in the three months ended March 31, 2013 and 2012 in the fair value of the liabilities classified as level 3 in the fair value hierarchy:
 
   
Warrant Liabilities
 
Balance at January 1, 2013
  $ 2,842,065  
Additions
    -  
Unrealized gains, net
    (368,902 )
Unrealized gains on expiration
    -  
Transfers out of level 3
    -  
Balance at March 31, 2013
  $ 2,473,163  
 
   
Warrant Liabilities
 
Balance at January 1, 2012
  $ 868,725  
Additions
    -  
Unrealized losses, net
    261,861  
Unrealized gains on expiration
    -  
Transfers out of level 3
    -  
Balance at March 31, 2012
  $ 1,130,586  
 
Additions consist of the fair value of warrant liabilities upon issuance.  Transfers out of Level 3 for warrant liabilities consist of warrant exercises.  The Company’s policy is to recognize transfers in and transfers out as of the actual date of the event or change in circumstance that caused the transfer.  There were no significant transfers in and out of Levels 1 and 2 for the three months ended March 31, 2013 and 2012.
 
 
Item 2.

OVERVIEW

Our efforts and resources have been focused primarily on acquiring and developing our pharmaceutical technologies, raising capital and recruiting personnel.  We are a development stage company and have no product sales to date and we will not generate any product sales until we receive approval from the Food and Drug Administration (the “FDA”) or equivalent foreign regulatory bodies to begin selling our pharmaceutical candidates.  Our major sources of working capital have been proceeds from various private financings, primarily private sales of common stock and debt securities, and collaboration agreements with our strategic investors.

SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS

The following discussion should be read in conjunction with the unaudited condensed financial statements and notes thereto set forth in Item 1 of this Quarterly Report.  This Quarterly Report contains statements accompanied by such phrases as “believe,” “estimate,” “expect,” “anticipate,” “may,” “intend” and other similar expressions, that are “forward-looking statements” as defined in the Private Securities Litigation Reform Act of 1995.  We caution that forward-looking statements are based largely on our expectations, and are subject to a number of known and unknown risks and uncertainties that are subject to change based on factors which are, in many instances, beyond our control.  Actual results, performance or achievements may differ materially from those contemplated, expressed, or implied by the forward-looking statements.

The following factors, among others, could cause our financial performance to differ materially from that expressed in such forward-looking statements:

 
· 
our lack of profitability and the need for additional capital to operate our business;
 
 
· 
our ability to obtain the necessary U.S. and worldwide regulatory approvals for our drug candidates;
 
 
· 
successful and timely completion of clinical trials for our drug candidates;
 
 
· 
demand for and market acceptance of our drug candidates;
 
 
· 
the availability of qualified third-party researchers and manufacturers for our drug development programs;
 
 
· 
our ability to develop and obtain protection of our intellectual property; and
 
 
· 
Other risks and uncertainties, including those detailed from time to time in our filings with the Securities and Exchange Commission (the “SEC”).
 
These forward-looking statements are made only as of the date hereof, and we undertake no obligation to update or revise the forward-looking statements, whether as a result of new information, future events or otherwise.  The safe harbors for forward-looking statements provided by the Private Securities Litigation Reform Act of 1995 are unavailable to issuers of “penny stock.”  Our shares may be considered a penny stock and, as a result, the safe harbors may not be available to us.

Results of Operations

Comparison of the Three Months Ended March 31, 2013 and March 31, 2012

Total Revenues

The Company had no revenues for the three months ended March 31, 2013 or 2012.
 

General and Administrative Expenses

General and administrative expenses consist primarily of salaries and related expenses for executive, finance and other administrative personnel, recruitment expenses, professional fees and other corporate expenses, including business development, investor relations, and general legal activities.

General and administrative expenses increased $482,580, or 66.3%, to $1,210,752 for the three months ended March 31, 2013 from $728,172 for the three months ended March 31, 2012.  The increase is primarily attributed to the stock option compensation and recruiting fees for our new Chief Executive Officer, who joined our Company in February, 2013.  Per the employment agreement, our CEO was awarded 1,200,000 stock options, valued at approximately $320,000, which vested immediately and were therefore expensed upon grant.

Research and Development Expenses

Research and development expenses consist primarily of salaries and related personnel costs, fees paid to consultants and outside service providers for laboratory development and other expenses relating to the design, development, testing, and enhancement of our drug candidates.  We expense our research and development costs as they are incurred.

Research and development expenses decreased $490,234 or 47.0%, to $552,466 for the three months ended March 31, 2013, from $1,042,700 for the three months ended March 31, 2012.  The decrease is partially due to the timing of costs incurred for our clinical compounds.  During the three months ended March 31, 2013, we were in the planning stages for trials of Archexin and RX-5902, which had not yet commenced, and therefore did not incur significant expense in the period, and during the three months ended March 31, 2012, we incurred expenses for trials that were completed in 2012.  The decrease is also attributable to the costs associated with the development of RX-3117.  During the quarter ended March 31, 2012, we incurred approximately $350,000 for the preclinical and exploratory Phase I clinical trial of RX-3117, which was paid from cash received from our partner, Teva Pharmaceutical Industries, Ltd. (“Teva”), through the sale of stock in accordance with a purchase agreement. In December, 2012, as per the second amendment to the RELO, Teva provided us with additional research funding for the development of RX-3117.  Since we did not issue equity from this transaction, the proceeds received from this additional funding were recorded a deferred research and development arrangement.  Costs incurred for the development of RX-3117 reduce the deferred research and development arrangement liability, and were therefore, not an expense of the Company during the three months ended March 31, 2013.

Patent Fees

Our patent fees increased $33,902, or 33.0%, to $136,491 for the three months ended March 31, 2013, from $102,589 for the three months ended March 31, 2012.  The increase was primarily due to legal costs to respond to the office actions on pending patent applications, and translation fees associated with regionalizing patents in foreign jurisdictions for the quarter ended March 31, 2013.
 
 Depreciation and Amortization

Depreciation and amortization expense decreased $1,405, or 13.1% to $9,316 for the three months ended March 31, 2013 from $10,721 for the three months ended March 31, 2012.  The decrease is primarily due to fully depreciated assets for which we incurred depreciation during the three months ended March 31,  2012 but not during the three months ended March 31, 2013.

 Interest Income

Interest income increased $3,769, or 60.3% to $10,018 for the three months ended March 31, 2013 from $6,249 for the three months ended March 31, 2012.  The increase is due to an increase in interest rates and interest bearing investments for the three months ended March 31, 2013 compared to the three months ended March 31, 2012.
 
 
Unrealized Gain/(Loss) on Fair Value of Warrants

Our warrants are recorded as liabilities at fair value, and the warrants are valued using a lattice model.  Changes in the fair value of warrants are recorded as an unrealized gain or loss in our Statement of Operations.  During the three months ended March 31, 2013 and 2012, we recorded an unrealized gain/(loss) on the fair value of our warrants of $368,902 and ($261,861).  The change in the fair value of our warrants is a non-cash item reflected in our financial statements.

Net Loss

As a result of the above, net loss for the three months ended March 31, 2013 was $1,530,105, or $0.01 per share, compared to a net loss of $2,139,794, or $0.02 per share, for the three months ended March 31, 2012.

Research and Development Projects

Research and development costs are expensed as incurred.  Research and development expenses consist primarily of salaries and related personnel costs, costs to acquire pharmaceutical products and product rights for development and amounts paid to contract research organizations, hospitals and laboratories for the provision of services and materials for drug development and clinical trials.  Costs incurred in obtaining the license rights to technology in the research and development stage and have no alternative future uses are expensed as incurred.  Our research and development programs are related to our oncology clinical stage drug candidates, Archexin, RX-3117 and RX-5902 and pre-clinical stage drug candidates, RX-0047-Nano, RX-0201-Nano, and RX-21101.  Each of our drug candidates is in various stages of completion as described below.  As we expand our clinical studies, we will enter into additional development agreements.  Significant additional expenditures will be required if we complete our clinical trials, start new trials, apply for regulatory approvals, continue development of our technologies, expand our operations and bring our products to market.  The eventual total cost of each clinical trial is dependent on a number of uncertainties such as trial design, the length of the trial, the number of clinical sites and the number of patients.  The process of obtaining and maintaining regulatory approvals for new therapeutic products is lengthy, expensive and uncertain.  Because the successful development of our most advanced drug candidates, Archexin, RX-3117 and RX-5902 is uncertain, and because, RX-0047-Nano, RX-0201-Nano, and RX-21101 are in early-stage development, we are unable to estimate the costs of completing our research and development programs, the timing of bringing such programs to market and, therefore, when material cash inflows could commence from the sale of these drug candidates.  If these projects are not completed as planned, our results of operations and financial condition could be negatively affected.
 
Archexin®
 
Archexin is a 20 nucleotide single stranded DNA anti-sense molecule, which is a first-in-class inhibitor of the protein kinase Akt.  Akt plays critical roles in cancer cell proliferation, survival, angiogenesis, metastasis, and drug resistance.  Archexin received "orphan drug" designation from the U.S. Food and Drug Administration, or FDA, for five cancer indications (renal cell carcinoma, or RCC, glioblastoma, ovarian cancer, stomach cancer and pancreatic cancer).  The FDA orphan drug program provides seven years of marketing exclusivity after approval and tax incentives for clinical research. In August, 2012, we announced top line results of our Phase IIa clinical trial.  The open label 2-stage study was designed to assess the safety and efficacy of Archexin in combination with gemcitabine.  Stage 1 was the dose finding portion and Stage 2 was the dose expansion portion using the dose identified in Stage 1 to be administered with gemcitabine.  The study enrolled 31 subjects aged 18-65 with metastatic pancreatic cancer at nine centers in the United States and India.  The primary endpoint was overall survival following four cycles of therapy with a six month follow-up.  For those evaluable patients, the study demonstrated that treatment with Archexin in combination with gemcitabine provided a median survival rate of 9.1 months compared to the historical survival data of 5.65 months for standard single agent gemcitabine therapy.   The most frequent reported adverse events were constipation, nausea, abdominal pain and pyrexia, regardless of relatedness.  Rexahn is evaluating options for advancing Archexin, including initiating Phase IIa clinical trials for chemo-resistant solid tumors and hematological malignancies in the second half of 2013.  We own one issued U.S. patent for Archexin.
 
 
As of March 31, 2013, we have spent approximately $6,665,000 for the development of Archexin.  The trial was completed in the third quarter of 2012, and we estimate that we have approximately an additional $110,000 of costs yet to be billed by vendors for this trial.  We currently estimate that additional Phase II trials for Archexin will cost approximately $2,900,000.

RX-3117
 
 In 2009, we closed on the RELO and a Purchase Agreement with Teva for the development of our novel anti-cancer compound, RX-3117.  RX-3117 is a small molecule, new chemical entity nucleoside compound that has an anti-metabolite mechanism of action, and has therapeutic potential in a broad range of cancers including colon, lung, and pancreatic cancer.  The investment by TEVA is restricted to supporting the research and development program for the development of RX-3117.  We will be eligible to receive royalties on net sales of RX-3117 worldwide.  On January 19, 2011, we entered into a second amendment to the Purchase Agreement, whereby Teva purchased 2,334,515 shares of our common stock for $3.95 million.  This second amendment also provided for a possible third investment by Teva, in the amount of $750,000. This compound entered into an exploratory Phase I clinical study during the first quarter of 2012.  The primary objective of the study was to determine oral bioavailability of RX-3117 in humans.  On August 6, 2012, we released the results that the study demonstrated the oral bioavailability of RX-3117 in humans, and with no adverse events reported in the study. On December 7, 2012, Teva exercised the third investment option, which constituted the final closing of the Purchase Agreement, and we issued 2,083,333 shares for $750,000.  On December 27, 2012 we received $926,000 from Teva pursuant to a second amendment to the RELO for the further development of RX-3117. We anticipate that RX-3117 will enter a Phase I clinical trial in the second half of 2013.

RX-5902
 
RX-5902 is a first-in-class small molecule that inhibits the phosphorylated p68 RNA helicase, a protein that plays a key role in cancer growth, progression, and metastasis.  In July, 2012, we submitted an IND Application to the FDA for RX-5902.  As of March 31, 2013, we have incurred approximately $1,426,000 for the development of RX-5902.  RX-5902 may enter Phase I clinical trials during the second quarter of 2013.  We estimate the costs of the Phase I clinical study to be approximately $1,800,000.

Serdaxin® (RX-10100)
 
Serdaxin is an extended release formulation of clavulanic acid, which is an ingredient present in antibiotics approved by the FDA.  We developed Serdaxin for the treatment of depression and neurodegenerative disorders.  On November 4, 2011, we released results that the study showed Serdaxin did not demonstrate efficacy compared to a placebo group as measured by the MADRS.  The study showed that Serdaxin was safe and well tolerated.  At this point, we are currently not allocating resources to further develop Serdaxin to treat MDD and are looking for partners who will fund the clinical development.

Through March 31, 2013, the pre-clinical and clinical costs incurred for development of Serdaxin to date have been approximately $9,820,000.  We do not anticipate additional costs for Serdaxin.

Zoraxel(RX-10100)
 
Zoraxel is an immediate release formulation of clavulanic acid, the same active ingredient found in our product candidate Serdaxin. Despite the encouraging proof of concept Phase IIa study result, given the results of the Serdaxin Phase IIb MDD clinical trial and that Zoraxel and Serdaxin share a common ingredient, we are currently looking for partners who will fund the clinical development of Zoraxel.

Through March 31 2013, the costs incurred for development of Zoraxel to date have been approximately $1,255,000.  We currently estimate that these Phase IIb studies would require approximately $2,300,000 but we have not allocated additional resources to the development of Zoraxel at this time.
 
 
Pre-clinical Pipeline
 
RX-0201-Nano, RX-0047-Nano and RX-21101 are all in a pre-clinical stage of development.   Through March 31, 2013, the costs incurred for development of these compounds to date have been approximately $2,422,000.  The estimated cost to complete pre-clinical toxicology and Phase I clinical trials is estimated to be approximately $1,500,000 per each compound.

The conduct of the clinical trial and toxicology studies described above are being accomplished in conjunction with third-party clinical research organizations at external locations.  This business practice is typical for the pharmaceutical industry and companies like us.  As a result, the risk of completion or delay of these studies is not within our direct control and a program delay may occur due to circumstances outside our control.  A delay in any of these programs may not necessarily have a direct impact on our daily operations.  However, to the extent that a delay results in additional cost to us, unexpected expenses may result.

We will need to raise additional money through debt and/or equity offerings in order to continue to develop our drug candidates.  If we are not able to raise sufficient additional money, we will have to reduce our research and development activities.  We will first reduce research and development activities associated with our preclinical compounds.  To the extent necessary, we will then reduce our research and development activities related to some or all of our clinical drugs.

Liquidity and Capital Resources

Operating Activities

Cash used in operating activities was $1,551,527 for the three months ended March 31, 2013.  The operating cash flows during the three months ended March 31, 2013 reflect our net loss of $1,530,105 and a net decrease of cash components of working capital and non-cash charges totaling $21,422.  Cash used in operating activities was $1,916,510 for the three months ended March 31, 2012.

Cash provided by investing activities was $134,012 for the three months ended March 31, 2013, consisted of a decrease in restricted cash of $134,621, offset by $609 for the purchase of equipment. Cash provided by investing activities for the three months ended March 31, 2012 was $156,134.

There was no cash provided by financing activities for the three months ended March 31, 2013 or 2012.

For the three months ended March 31, 2013, we experienced a net loss of $1,530,105.  Our accumulated deficit as of March 31, 2013 was $64,841,388.

We have not yet generated commercial sales revenue and have been able to fund our operating losses to date through the sale of our common stock, convertible debt financings, interest income from investments of cash and cash equivalents and proceeds from reimbursed research and development costs.  During the three months ended March 31, 2013, we had a net decrease in cash and cash equivalents of $1,417,515.  Total cash as of March 31, 2013 was $12,069,028 compared to $13,486,543 as of December 31, 2012.  Total cash, restricted cash, and marketable securities were $13,126,208, which we believe will be sufficient to cover our cash flow requirements through September 30, 2014. Although we expect to have to pursue additional financing, there can be no assurance that we will be able to secure financing when needed or obtain such financing on terms satisfactory to us, if at all, or that any additional funding we do obtain will be sufficient to meet our needs in the long term.  If we are not able to raise sufficient additional financing, we may not be able to fund the research and development.
 
 
Contractual Obligations

We have contracted with various vendors to provide research and development services. The terms of these agreements usually require an initiation fee and monthly or periodic payments over the term of the agreement, ranging from 2 months to 36 months. The costs to be incurred are estimated and are subject to revision. As of March 31, 2013, the total contract value of these agreements was approximately $20,042,152 and we made payments totaling $18,018,563 under the terms of the agreements.  All of these agreements may be terminated by either party upon appropriate notice as stipulated in the respective agreements.

On September 9, 2010, we and three of our key executives entered into Amended and Restated Employment Agreements.  The Amended and Restated Employment Agreements replace the prior employment contracts entered into on August 10, 2009.  We entered into the Amended and Restated Employment Agreements in order to provide the key executives with: (i) an automatic one year renewal upon the expiration of the initial three year term and upon each consecutive year term unless such employment with the Company is terminated earlier by the Company or the executives; (ii) an annual base salary adjustment for inflation as determined by the Consumer Price Index subject to review by the Company’s Compensation Committee; (iii) an increase in the Company provided life insurance coverage from an amount equal to two times the executive’s annual base salary to an amount equal to four times the executive’s annual base salary; and (iv) a one-time cash payment, subject to applicable withholding requirements under applicable state and federal law, in an amount equal to the executive’s increased income tax costs as a result of payments made to the executive by the Company under the change of control provisions of the Amended and Restated Employment Agreement. Other than these changes, the new contracts have substantially similar terms to the executives’ prior employment agreements.  The agreements resulted in annual commitments of $350,000 to Dr. Chang H. Ahn, our former CEO and current Chief Scientist, $250,000, to Mr. Rick Soni, our President and Chief Operating Officer, and $215,000 for Mr. Tae Heum Jeong, our Chief Financial Officer.

Effective as of February 4, 2013, the Company entered into an employment agreement with Dr. Peter Suzdak to serve as the Company’s Chief Executive Officer for a term of two years with the option to renew the employment agreement for additional one-year periods thereafter until terminated. Pursuant to the employment agreement the Company agreed to pay Dr. Suzdak an annual base salary of $330,000, with the option of a discretionary annual cash bonus of up to forty percent of his base salary, as determined by performance objectives and milestones set by the Board of Directors.

On March 25, 2013, the Company entered into a new employment agreement with Dr. Ahn to serve as the Chief Scientist of the Company. This employment agreement replaces and supersedes Dr. Ahn’s prior Amended and Restated Employment Agreement, dated as of September 9, 2010, with the Company. The employment agreement has a one year term with an automatic renewal option for additional one-year periods thereafter until terminated.  Pursuant to the employment agreement, the Company agreed to pay Dr. Ahn an annual base salary of $285,000 with the option of a discretionary annual cash bonus as determined by the Compensation Committee based on performance objectives and milestones set by the Board of Directors.  The employment agreement also provides for a discretionary stock option award to purchase shares of the Company’s common stock on each anniversary of the employment agreement as determined by the Board of Directors. Any such stock option awards to be in accordance with the terms of the Company’s stock option plan.

On June 22, 2009, we entered into a License Agreement with Korea Research Institute of Chemical Technology (KRICT) to acquire the rights to all intellectual properties related to Quinoxaline-Piperazine derivatives that were synthesized under a Joint Research Agreement.  The initial license fee was $100,000, all of which was paid as of December 31, 2009.  The agreement with KRICT calls for a one-time milestone payment of $1,000,000 within 30 days after the first achievement of marketing approval of the first commercial product arising out of or in connection with the use of KRICT’s intellectual properties.  As of March 31, 2013, this milestone has not occurred.

On June 29, 2009, we signed a five year lease for 5,466 square feet of office space in Rockville, Maryland commencing on June 29, 2009.  The lease requires annual base rents of $76,524 with increases over the next five years. Under the leasing agreement, we pay our allocable portion of real estate taxes and common area operating charges.  We paid $40,199 and $39,219, for rent under this lease in the three months ended March 31, 2013 and 2012, respectively.
 
 
In connection with the lease agreement, we issued a letter of credit of $100,000 in favor of the lessor.  On August 2, 2010 and July 1, 2011, the letter of credit was reduced to $50,000, and $37,500 respectively, per the lease agreement.  We have restricted cash equivalents of the same amount for the letter of credit.
 
On September 21, 2009, the Company closed on the Purchase Agreement with Teva, under which Teva purchased 3,102,837 shares of our common stock for $3.5 million. Contemporaneous with the execution and delivery of this agreement, the parties executed a research and the RELO pursuant to which the Company agreed to use $2,000,000 from the gross proceeds of the issuance and sale of shares to Teva to fund a research and development program for the pre-clinical development of RX-3117.  On January 19, 2011, the Company entered into a second amendment to the Purchase Agreement in which Teva purchased 2,334,515 shares of the common stock of the Company for gross proceeds of $3,950,000, which the Company agreed to use for the further preclinical development of RX-3117.  On December 7, 2012, Teva exercised its option to purchase $750,000 of common stock, and we issued Teva 2,083,333 shares.  This constituted the third and final closing agreed to in the Purchase Agreement, and the use of these funds is not restricted.  On December 27, 2012, we received funds from Teva in accordance with a second amendment to the RELO agreement, entered into on November 27, 2012 in which Teva provided us with an additional $926,000 of research funding for the development of RX-3117.  We did not issue equity for this transaction.
 
The table below summarizes the investments made under the Purchase Agreement and RELO:

Date of Investment
 
Investment
Amount
   
Shares Issued
   
Proceeds
Remaining in
Restricted Cash as
of 3/31/13
   
Deferred
Research and
Development
Arrangement
Balance at 3/31/13
 
9/21/2009
  $ 3,500,000       3,102,837     $ -     $ -  
1/19/2011
    3,950,000       2,334,515       178,301       -  
12/7/2012
    750,000       2,083,333       -       -  
12/27/2012
    926,000       -       741,379       741,379  
Total
  $ 9,126,000       7,520,685     $ 919,680     $ 741,379  
 
On May 30, 2012, and June 22, 2011, we signed a one year renewal to use lab space commencing on July 1, 2012 and 2011, respectively.  The lease requires monthly rental payments of $4,554.  Rent paid under the lease during the three months ended March 31, 2013 and 2012 was $13,662.
 
We established a 401(k) plan for our employees where we match 100% of the first 3% of the employee’s deferral plus 50% of an additional 2% of the employee’s deferral.  Expense related to this matching contribution aggregated $17,716, and $18,465 for the three months ended March 31, 2013 and 2011, respectively.

 Current and Future Financing Needs

We have incurred negative cash flow from operations since we started our business.  We have spent, and expect to continue to spend, substantial amounts in connection with implementing our business strategy, including our planned product development efforts, our clinical trials, and our research and development efforts.  Total cash, including restricted cash, and marketable securities, was $13,126,208 as of March 31, 2013.  Based on our current plans and our capital resources, we believe that our cash, restricted cash, and marketable securities will be sufficient to enable us to meet our minimum planned operating needs over the next eighteen months which would entail focusing our resources on Phase II clinical trials of Archexin, Phase I clinical trials of RX-3117 and RX-5902, and the further development of our preclinical pipeline. Over the next twelve months, we expect to spend a minimum of approximately $2.2 million for Phase II clinical trials of Archexin.  We also expect to pay $2.3 million on the development of RX-3117 and RX-5902, $3.2 million for the development of our preclinical pipeline and general research and development costs, $3.1 million on general corporate expenses, and approximately $220,000 on facilities rent. These figures include our commitments described earlier under “Contractual Obligations” under this Item 2.  We will need to seek additional financing to implement and fund drug candidate development, clinical trial and research and development efforts to the maximum extent of our operating plan, including in-vivo animal and pre-clinical studies, clinical trials for new product candidates, as well as other research and development projects.  If we are not able to secure additional financing, we may not be able to implement and fund the research and development.
 
 
However, the actual amount of funds we will need to operate is subject to many factors, some of which are beyond our control.  These factors include the following:
 
 
· 
the progress of our product development activities;
 
 
· 
the number and scope of our product development programs;
 
 
· 
the progress of our pre-clinical and clinical trial activities;
 
 
· 
the progress of the development efforts of parties with whom we have entered into collaboration agreements;
 
 
· 
our ability to maintain current collaboration programs and to establish new collaboration arrangements;
 
 
· 
the costs involved in prosecuting and enforcing patent claims and other intellectual property rights; and
 
 
· 
the costs and timing of regulatory approvals.
 
Impact of Inflation

To date inflationary factors have not had a significant effect on our operations.

Off-Balance Sheet Arrangements

We do not have any off-balance sheet arrangements.
 
 
Item 3. 

Per Item 305(e) of Regulation S-K, a smaller reporting company is not required to provide the information required by this item.

Item 4.

Disclosure Controls and Procedures

As of the end of the period covered by this Quarterly Report on Form 10-Q, the Company carried out an evaluation, under the supervision and with the participation of the Company’s management, including the Company’s Chief Executive Officer (“CEO”) along with the Company’s Chief Financial Officer (“CFO”), of the effectiveness of the Company’s disclosure controls and procedures (as defined in Rule 13a-15(e) under the Securities Exchange Act of 1934, as amended (the “Exchange Act”)).  Based on that evaluation, the CEO along with the CFO concluded that the Company’s disclosure controls and procedures were effective as of the end of the period covered by this report.
 
The Company’s management, including the CEO and CFO, does not expect that the Company’s disclosure controls and internal controls will prevent all errors and all fraud.  A control system, no matter how well conceived and operated, can provide only reasonable, not absolute, assurance that the objectives of the control system are met.  Because of the inherent limitations in all control systems, no evaluation of controls can provide absolute assurance that all control issues and instances of fraud, if any, within the Company have been detected.  These inherent limitations include the realities that judgments in decision making can be faulty, and that breakdowns can occur because of simple error or mistake.  Additionally, controls can be circumvented by the individual acts of some persons, by collusion of two or more people, or by management override of the controls.

Changes in Internal Control Over Financial Reporting

There have not been any changes in the Company’s internal controls over financial reporting (as such term is defined in Rule 13a-15(f) under the Exchange Act) during the quarter ended March 31, 2013 that have materially affected, or are reasonably likely to materially affect, the Company’s internal controls over financial reporting.
 
 
PART II. Other Information

Item 1.

None

Item 1A.
 
There were no material changes to the risk factors as previously disclosed under item 1A of the Company’s Annual Report on Form 10-K for the year ended December 31, 2012, as filed with the SEC on March 22, 2013.

Item 2.

None

Item 3.

None

Item 4.

Not Applicable

Item 5.

None
 
 
Item 6.

Exhibit No
 
Description
     
3.2
 
Amended and Restated Bylaws, as amended, filed as Exhibit 3.2 to the Company’s Current Report on Form 8-K filed on March 29, 2013, is herein incorporated by reference
     
10.1
 
Employment Agreement, dated as of February 4, 2013, by and between Rexahn Pharmaceuticals, Inc. and Peter Suzdak, filed as Exhibit 10.1 to the Company’s Current Report on Form 8-K filed on January 22, 2013, is herein incorporated by reference
     
10.2
 
Employment Agreement, dated as of March 25, 2013, by and between Rexahn Pharmaceuticals, Inc. and Chang Ahn, filed as Exhibit 10.1 to the Company’s Current Report on Form 8-K filed on March 29, 2013, is herein incorporated by reference
     
31.1
 
Certification of Chief Executive Officer pursuant to Rules 13a-14(a) / 15d-14(a)
     
31.2
 
Certification of Chief Financial Officer pursuant to Rules 13a-14(a) / 15d-14(a)
     
32.1
 
Certification of Chief Executive Officer pursuant to 18 U.S.C. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
     
32.2
 
Certification of Chief Financial Officer pursuant to 18 U.S.C. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
     
101
 
The following materials from Rexahn Pharmaceuticals, Inc.’s Quarterly Report on Form 10-Q, formatted in Extensible Business Reporting Language (“XBRL”): i) Condensed Balance Sheet, ii) Condensed Statement of Operations, iii) Condensed Statement of Cash Flows and (iv) Notes to the Financial Statements.  Pursuant to Rule 406T of Regulation S-T, this interactive data file is deemed not filed or part of a registration statement or prospectus for purposes of sections 11 or 12 of the Securities Act of 1933, as amended, and is deemed not filed for purposes of section 18 of the Securities Exchange Act of 1934, as amended, and otherwise is not subject to liability under these sections.
 
 
SIGNATURES
 
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

   
REXAHN PHARMACEUTICALS, INC.
   
    (Registrant)
     
 
By:
/s/ Peter D. Suzdak
Date: May 9, 2013
 
Peter D. Suzdak
   
Chief Executive Officer
(principal executive officer)
     
 
By:
/s/ Tae Heum Jeong
Date: May 9, 2013
 
Tae Heum Jeong
   
Chief Financial Officer and Secretary
(principal financial and accounting officer)
 
 
INDEX TO EXHIBITS
Quarterly Report on Form 10-Q
Dated March 31, 2013

Exhibit No
 
Description
 
Location
         
3.2
 
Amended and Restated Bylaws, as amended
 
Filed as Exhibit 3.2 to the Current Report on Form 8-K filed on March 29, 2013
         
10.1
 
Employment Agreement, dated as of February 4, 2013, by and between Rexahn Pharmaceuticals, Inc. and Peter Suzdak
 
Filed as Exhibit 10.1 to the Current Report on Form 8-K filed on January 22, 2013
         
10.2
 
Employment Agreement, dated as of March 25, 2013, by and between Rexahn Pharmaceuticals, Inc. and Chang Ahn
 
Filed as Exhibit 10.1 to the Current Report on Form 8-K filed on March 29, 2013
         
 
Certification of Chief Executive Officer pursuant to Rules 13a-14(a) / 15d-14(a)
 
Filed herewith
         
 
Certification of Chief Financial Officer pursuant to Rules 13a-14(a) / 15d-14(a)
 
Filed herewith
         
 
Certification of Chief Executive Officer pursuant to 18 U.S.C. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
 
Filed herewith
         
 
Certification of Chief Financial Officer pursuant to 18 U.S.C. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
 
Filed herewith
         
101.INS
 
XBRL Instance Document
 
Filed herewith
         
101.SCH
 
XBRL Taxonomy Extension Schema
 
Filed herewith
         
101.CAL
 
XBRL Taxonomy Extension Calculation Linkbase
 
Filed herewith
         
101.DEF
 
XBRL Taxonomy Extension Definition Linkbase
 
Filed herewith
         
101.LAB
 
XBRL Taxonomy Extension Label Linkbase
 
Filed herewith
         
101.PRE
 
XBRL Taxonomy Extension Presentation Linkbase
 
Filed herewith