shares that we can sell to Lincoln Park under the Purchase Agreement may in no case exceed 9,268,182 shares of our common stock (which is equal to approximately 19.99% of the shares of our common stock outstanding immediately prior to the execution of the Purchase Agreement, or the Exchange Cap, unless (i) stockholder approval is obtained to issue Purchase Shares above the Exchange Cap, in which case the Exchange Cap will no longer apply, or (ii) the average price of all applicable sales of our common stock to Lincoln Park under the Purchase Agreement equals or exceeds $0.3508 per share (which represents the the closing price of our common stock on the Nasdaq Capital Market immediately preceding the signing of the Purchase Agreement, plus an incremental amount to account for the issuance of the Commitment Shares to Lincoln Park); provided that at no time shall Lincoln Park (together with its affiliates) beneficially own more than 9.99% of our issued and outstanding common stock.
The Purchase Agreement contains customary representations, warranties, covenants, closing conditions and indemnification and termination provisions. Sales under the Purchase Agreement may commence only after certain conditions have been satisfied, the date on which all requisite conditions have been satisfied is referred to herein as the Commencement Date, which conditions include the delivery to Lincoln Park of a prospectus supplement covering the Commitment Shares and the Purchase Shares, approval for listing on Nasdaq Capital Market of the Purchase Shares and the Commitment Shares, the issuance of the Commitment Shares to Lincoln Park, and the receipt by Lincoln Park of a customary opinion of counsel and other certificates and closing documents. We anticipate that such conditions will be satisfied on or around February 18, 2020. The Purchase Agreement may be terminated by us at any time, at our sole discretion, without any cost or penalty. Lincoln Park has covenanted not to cause or engage in any manner whatsoever, any direct or indirect short selling or hedging of our common stock. While we have agreed to reimburse Lincoln Park for a limited portion of the fees it incurred in connection with the Purchase Agreement, we did not pay any additional amounts to reimburse or otherwise compensate Lincoln Park in connection with the transaction. There are no limitations on use of proceeds, financial or business covenants, restrictions on future financings (other than restrictions on our ability to enter into variable rate transactions described in the Purchase Agreement), rights of first refusal, participation rights, penalties or liquidated damages in the Purchase Agreement. We may deliver Purchase Notices under the Purchase Agreement, subject to market conditions, and in light of our capital needs from time to time and under the limitations contained in the Purchase Agreement. Any proceeds that we receive under the Purchase Agreement are expected to be used for working capital and general corporate purposes.
The issuance of the Purchase Shares and Commitment Shares will be registered pursuant to our effective shelf registration statement on FormS-3 (FileNo. 333-213926), or the Registration Statement, and the related base prospectus included in the Registration Statement, as supplemented by a prospectus supplement to be filed on or around the Commencement Date. A copy of the legal opinion as to the legality of the shares of our common stock subject to the Purchase Agreement is filed as Exhibit 5.1 attached hereto.
The foregoing is a summary description of certain terms of the Purchase Agreement and the Registration Rights Agreement and, by its nature, is incomplete. Copies of the Purchase Agreement and the Registration Rights Agreement are filed as Exhibits 10.1 and 10.2 attached hereto. The foregoing descriptions of the Purchase Agreement and the Registration Rights Agreement are qualified in their entirety by reference to such exhibits.
The Purchase Agreement and Registration Rights Agreement contain customary representations and warranties, covenants and indemnification provisions that the parties made to, and solely for the benefit of, each other in the context of all of the terms and conditions of such agreements and in the context of the specific relationship between the parties thereto. The provisions of the Purchase Agreement and Registration Rights Agreement, including any representations and warranties contained therein, are not for the benefit of any party other than the parties thereto and are not intended as documents for investors and the public to obtain factual information about the current state of affairs of the parties thereto. Rather, investors and the public should look to other disclosures contained in our annual, quarterly and current reports we may file with the Securities and Exchange Commission.
The information contained in this Current Report on Form8-K shall not constitute an offer to sell or the solicitation of an offer to buy the shares of our common stock discussed herein, nor shall there be any offer, solicitation or sale of the shares in any jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such jurisdiction.
Additionally, on February 17, 2020, in connection with entering into the Purchase Agreement, we entered into an amendment, or the Amendment, with Deerfield Private Design Fund III, L.P., or Deerfield, and Deerfield Special Situations Fund, L.P. to (i) those certain Senior Secured Convertible Notes, or the Notes, issued to the holders thereof pursuant to the terms of that certain Facility Agreement, dated as of June 2, 2014, as amended, by and among us and the lenders party thereto and (ii) the Warrant, or the Deerfield Warrant, previously issued by us to Deerfield. The Amendment, among other things, clarified that the