Operating Lease Costs
Operating lease costs were approximately $0.1 million during the three and six months ended June 30, 2020, respectively, and $0.1 million and $0.2 million during the three and six months ended June 30, 2019, respectively. These costs are primarily related to long-term operating leases for the Company’s facilities and laboratory equipment. Short-term and variable lease costs were less than $0.1 million for the three and six months ended June 30, 2020 and 2019, respectively. Cash paid for amounts included in the measurement of operating lease liabilities was approximately $0.1 million in operating cash flows for the six months ended June 30, 2020 and 2019, respectively.
Finance Lease Costs
Finance leases are included in property and equipment, net and finance lease liabilities, less current maturities on the condensed consolidated balance sheets. The associated amortization expense and interest expense are included in the condensed consolidated statements of operations for the six months ended June 30, 2020 and 2019. The balances within these accounts are less than $0.1 million, respectively.
8. STOCKHOLDERS’ EQUITY
Common Stock.
Pursuant to our Third Amended and Restated Certificate of Incorporation, as amended, we currently have 150,000,000 shares of common stock authorized for issuance. On December 20, 2018, the Company’s shareholders approved the proposal to authorize the Company’s Board of Directors to, in its discretion, amend the Company’s Third Amended and Restated Certificate of Incorporation to increase the total number of authorized shares of common stock from 150,000,000 shares to 250,000,000 shares. The Company has not yet effected this increase.
During the three and six months ended June 30, 2020, the Company issued 3,480,148 and 3,908,145 shares of its common stock, respectively, in connection with the conversion of convertible notes, plus interest, totaling $1.8 million and $2.2 million, respectively. During the three and six months ended June 30, 2019, the Company issued 1,138,310 and 2,386,425 shares of its common stock, respectively, in connection with the conversion of convertible notes, plus interest, totaling $4.1 million and $7.3 million, respectively. See Note 4 – Convertible Notes.
LP Purchase Agreement
On September 7, 2018, the Company entered into a purchase agreement (the “LP Purchase Agreement”) with Lincoln Park, pursuant to which Lincoln Park has agreed to purchase from the Company up to an aggregate of $10,000,000 of common stock of the Company (subject to certain limitations) from time to time over the term of the LP Purchase Agreement. Pursuant to the terms of the LP Purchase Agreement, on the agreement date, the Company issued 40,000 shares of its common stock to Lincoln Park as consideration for its commitment to purchase shares of common stock of the Company under the LP Purchase Agreement (the “LP Commitment Shares”). Also on September 7, 2018, the Company entered into a registration rights agreement with Lincoln Park (the “LP Registration Rights Agreement”), pursuant to which on September 14, 2018, the Company filed with the SEC a registration statement on Form S-1 to register for resale under the Securities Act of 1933, as amended, or the Securities Act, 466,667 shares of common stock, which includes the LP Commitment Shares, that have been or may be issued to Lincoln Park under the LP Purchase Agreement. The Form S-1 was declared effective by the SEC on September 28, 2018. As of January 16, 2019, all shares registered under this S-1 had been sold and/or issued to Lincoln Park. On February 1, 2019, the Company filed with the SEC a registration statement on Form S-1 to register for resale under the Securities Act of 1933, as amended, or the Securities Act, an additional 1,000,000 shares of common stock that have been or may be issued to Lincoln Park under the LP Purchase Agreement. The Form S-1 was declared effective by the SEC on February 12, 2019. As of August 5, 2019, all shares registered under this S-1 had been sold and/or issued to Lincoln Park. On August 9, 2019, the Company filed with the SEC a registration statement on Form S-1 to register for resale under the Securities Act of 1933, as amended, or the Securities Act, an additional 1,800,000 shares of common stock that have been or may be issued to Lincoln Park under the LP Purchase Agreement. As of January 9, 2020, all shares registered under this S-1 had been sold