During the six-month periods ended June 30, 2021 and 2020, we paid interest aggregating $4,000 and $5,000, respectively. During the six-month period ended June 30, 2021, we collected approximately $2.925 million of stock subscriptions which were received prior to the filing of our Annual Report on Form 10-K for the year ended December 31, 2020 and were included in stock subscriptions receivable in our consolidated balance sheet as of December 31, 2020. In February 2020, the Company amended its existing office lease and recognized a right-of-use lease asset in exchange for a lease liability of $100,432. During the six-month periods ended June 30, 2021 and 2020, we issued 30,018 and 32,651 shares of our common stock as matching contributions to our 401(k) Plan which were valued at $77,000 and $40,000, respectively. During the six-month period ended June 30, 2020, we issued 94,159 shares of our common stock valued at $172,000 to our employees as partial payment in lieu of cash for their 2019 bonuses. During the six-month period ended June 30, 2020, 411,000 Series OO warrants to purchase the Company’s common stock were exercised on a cashless basis in exchange for issuance of 300,595 shares of Navidea common stock. During the six-month period ended June 30, 2020, the Company recorded a deemed dividend of approximately $78,000 related to the BCF on 70,000 shares of Series C Preferred Stock, and 70,000 shares of Series C Preferred Stock were converted into 410,765 shares of Common Stock.