Filing Details

(1)

Includes 683 Capital Partners, LP's right to obtain up to 2,000,000 shares of Common Stock issuable upon exercise of a warrant to purchase up to 200,000 shares of Series A Convertible Preferred Stock of the Issuer, as disclosed in Item 4, and subsequent conversion of each share of Series A Convertible Preferred Stock into 10 shares of Common Stock.  Does not include 295,955.875 shares of Series B Convertible Preferred Stock of the Issuer (convertible into 11,838,235 shares of Common Stock) issuable upon exercise of a warrant to purchase such shares of Series B Convertible Preferred Stock of the Issuer, as disclosed in Item 5, and subsequent conversion of each share of Series B Convertible Preferred Stock into 40 shares of Common Stock.

(2)

Based on 78,249,692 shares of Common Stock outstanding post-offering, as reported in the Issuer's final prospectus filed with the Securities and Exchange Commission on April 30, 2018 pursuant to Rule 424(b)(4) of the Securities Act of 1933, as amended (the "April 30, 2018 Prospectus") (assuming the full exercise of the Pre-Funded Warrants (as defined in the April 30, 2018 Prospectus) sold in the offering described in the April 30, 2018 Prospectus).

 

(1)

Includes 683 Capital Partners, LP's right to obtain up to 2,000,000 shares of Common Stock issuable upon exercise of a warrant to purchase up to 200,000 shares of Series A Convertible Preferred Stock of the Issuer, as disclosed in Item 4, and subsequent conversion of each share of Series A Convertible Preferred Stock into 10 shares of Common Stock.  Does not include 295,955.875 shares of Series B Convertible Preferred Stock of the Issuer (convertible into 11,838,235 shares of Common Stock) issuable upon exercise of a warrant to purchase such shares of Series B Convertible Preferred Stock of the Issuer, as disclosed in Item 5, and subsequent conversion of each share of Series B Convertible Preferred Stock into 40 shares of Common Stock.

(2)

Based on 78,249,692 shares of Common Stock outstanding post-offering, as reported in the April 30, 2018 Prospectus (assuming the full exercise of the Pre-Funded Warrants (as defined in the April 30, 2018 Prospectus) sold in the offering described in the April 30, 2018 Prospectus).

(1)

Includes 683 Capital Partners, LP's right to obtain up to 2,000,000 shares of Common Stock issuable upon exercise of a warrant to purchase up to 200,000 shares of Series A Convertible Preferred Stock of the Issuer, as disclosed in Item 4, and subsequent conversion of each share of Series A Convertible Preferred Stock into 10 shares of Common Stock.  Does not include 295,955.875 shares of Series B Convertible Preferred Stock of the Issuer (convertible into 11,838,235 shares of Common Stock) issuable upon exercise of a warrant to purchase such shares of Series B Convertible Preferred Stock of the Issuer, as disclosed in Item 5, and subsequent conversion of each share of Series B Convertible Preferred Stock into 40 shares of Common Stock.

(2)

Based on 78,249,692 shares of Common Stock outstanding post-offering, as reported in the April 30, 2018 Prospectus (assuming the full exercise of the Pre-Funded Warrants (as defined in the April 30, 2018 Prospectus) sold in the offering described in the April 30, 2018 Prospectus).

The following constitutes Amendment No. 1 ("Amendment No. 1") to the Schedule 13D filed by the undersigned.   This Amendment No. 1 amends the Schedule 13D as specifically set forth herein.

Item 3.

Source and Amount of Funds or Other Consideration.

Item 3 is hereby amended by adding the following:

On April 27, 2018, a total of approximately $5,031,249.88 was paid to acquire the 11,838,235 shares of  Common Stock reported as beneficially owned by 683 Partners and a warrant to purchase up to 295,955.875 shares of Series B Convertible Preferred Stock ("Series B Preferred Stock"), as disclosed in Item 4 below. The funds used to purchase the Shares were obtained from the general working capital of 683 Partners, including margin account borrowings made in the ordinary course of business, although the Reporting Persons cannot determine whether any funds allocated to purchase such securities were obtained from any margin account borrowings.

Item 4.

Purpose of the Transaction

Item 4 is hereby amended and restated to read as follows:

The Reporting Persons purchased the securities of the Issuer reported herein based on their belief that such securities, when purchased, were undervalued and represented an attractive investment opportunity.

On February 8, 2018, 683 Partners purchased an additional 200,000 shares of Common Stock in the market.

On April 27, 2018, 683 Partners purchased an additional 11,838,235 shares of Common Stock as part of the Issuer's public offering of 46,588,234 shares of Common Stock (the "April 2018 Public Offering").  On April 27, 2018, the Issuer issued to 683 Partners a Series B Convertible Preferred Stock Purchase Warrant (the "Series B Warrant") to purchase up to 295,955.875 shares of Series B Preferred Stock at an exercise price of $0.425 per each 0.025 of one share of Series B Preferred Stock, or $17.00 per share of Series B Preferred Stock.  Each Series B Preferred Share is convertible into 40 shares of Common Stock, subject to adjustment pursuant to the terms of the Series B Warrant.

Depending upon other factors including overall market conditions, other investment opportunities available to the Reporting Persons, and the availability of securities of the Issuer at prices that would make the purchase or sale of such securities desirable, the Reporting Persons may endeavor (i) to increase or decrease their respective positions in the Issuer through, among other things, the purchase or sale of securities of the Issuer on the open market or in private transactions or otherwise on such terms and at such times as the Reporting Persons may deem advisable and/or (ii) to enter into transactions that increase or hedge their economic exposure to the Shares without affecting their beneficial ownership of Shares.

No Reporting Person has any present plan or proposal which would relate to or result in any of the matters set forth in subparagraphs (a) - (j) of Item 4 of Schedule 13D except as set forth herein or such as would occur upon or in connection with completion of, or following, any of the actions discussed herein. The Reporting Persons may take positions regarding or make precatory, conditional or binding proposals with respect to, or with respect to potential changes in, the Issuer's: operations, management, certificate of incorporation and bylaws, composition of the Board of Directors or its committees, ownership, capital or corporate structure, dividend policy, potential acquisitions or sales, businesses or assets, including the sales thereof, strategy and/or plans of the Issuer as a means of enhancing stockholder value. The Reporting Persons may change their intention with respect to any and all matters referred to in Item 4. The Reporting Persons intend to review their investment in the Issuer on an ongoing basis and may from time to time in the future express their views to and/or meet with management, the Board of Directors, other stockholders or third parties, including, potential acquirers, service providers and financing sources, and/or may formulate plans or proposals regarding the Issuer, its assets or its securities. Such possible plans or proposals may include one or more plans or proposals that relate to or would result in one or more of the changes referred to herein, or any of the matters set forth in subparagraphs (a) - (j) of Item 4 of Schedule 13D.

Item 5.

Interest in Securities of the Issuer.

Item 5 is hereby amended and restated to read as follows:

As of the date hereof, 683 Partners beneficially owned 16,503,169 shares of Common Stock, including 2,000,000 shares of Common Stock issuable upon the exercise of the Series A Warrant to purchase shares of Series A Convertible Preferred Stock and subsequent conversion of the Series A Preferred Stock, constituting approximately 20.6% of the shares of Common Stock outstanding calculated in accordance with the Beneficial Ownership Limitation (as defined below).  By virtue of their respective relationships with 683 Partners discussed in further detail in Item 2, each of 683 Management and Mr. Zweiman may be deemed to beneficially own the shares of Common Stock owned directly by 683 Partners. 683 Management and Ari Zweiman disclaim beneficial ownership of such shares of Common Stock except to the extent of his or its pecuniary interest therein.

683 Partners has also acquired the Series B Warrant to purchase 295,955.875 shares of Series B Preferred Stock, which in turn are convertible into 11,838,235 shares of Common Stock.  The Issuer's Certificate of Designation of Series B Convertible Preferred Stock, attached as Exhibit 3.1 to the April 30, 2018 Form 8-K, provides that the Issuer shall not effect any conversion of the Series B Preferred Stock, and a holder of such stock shall not have the right to convert any portion of such Series B Preferred Stock, to the extent that, after giving effect to the conversion, the number of shares of Common Stock to be issued pursuant to such conversion would result in the holder beneficially owning (as determined in accordance with Section 13(d) of the Act, as amended, and the rules thereunder), in excess of 4.99% of all of the Common Stock outstanding at such time (the "Beneficial Ownership Limitation").

As disclosed in the April 30, 2018 Form 8-K, the Company will seek stockholder approval to amend the Issuer's Tenth Amended and Restated Certificate of Incorporation (the "Charter Amendment") to authorize a sufficient number of shares of Common Stock of the Issuer to cover the conversion of all then-outstanding shares of Preferred Stock of the Issuer into Common Stock on or before June 14, 2018.  The Series B Warrant will be exercisable by 683 Partners  on the first business day after the Issuer has publicly announced the Charter Amendment through the filing of a Current Report on Form 8-K that announces that the Charter Amendment has been filed with the Secretary of State of the State of Delaware.

Each of 683 Management and Mr. Zweiman share the power to vote or direct the vote of, and to dispose or direct the disposition of, the Common Stock beneficially owned by  683 Partners.  Information regarding each of 683 Management and Ari Zweiman is set forth in Item 2 of this Schedule 13D and is expressly incorporated by reference herein.

Item 6.

Contracts, Arrangements, Understandings or Relationships With Respect to Securities of the Issuer.

Item 6 is hereby amended to add the following:

On April 27, 2018, 683 Partners agreed to waive its right to enforce the Series A Warrant until the Issuer increases its authorized shares of Common Stock.

After reasonable inquiry and to the best of its knowledge and belief, each of the undersigned certifies that the information with respect to it set forth in this statement is true, complete, and correct.

Dated:  May 1, 2018