We currently have on file with the SEC a universal shelf registration statement which allows us to offer and sell registered Class A common stock, preferred stock, debt securities and warrants from time to time pursuant to one or more offerings of up to $75,000,000 in aggregate offering price at prices and terms to be determined at the time of sale. On August 10, 2020, we consummated an underwritten public offering of 4,000,000 shares of Class A common stock registered under our universal shelf registration statement. On June 18, 2021, we consummated an underwritten public offering of 5,411,900 shares of Class A common stock, including the 705,900 shares issuable upon the underwriter’s exercise of its option to purchase additional shares, under our universal shelf registration statement. Following the August 2020 and June 2021 underwritten offerings, approximately $15.0 million in aggregate offering price remains available for issuance under our universal shelf registration statement.
In connection with the amendment to our prior senior secured term loan, on the first day of each quarter that our senior secured notes was outstanding, beginning on or after July 1, 2021, we were obligated to issue warrants to the lenders to purchase such number of shares of Class A common stock as equals 0.50% of the then outstanding shares of our common stock on a fully-diluted basis and we are required to file a registration statement with the SEC to register for resale the shares of Class A common stock underlying the warrants. Pursuant to this obligation, on July 1, 2021, we issued warrants to the lenders exercisable for an aggregate of 130,350 shares of Class A common stock, on October 1, 2021, we issued warrants to the lenders exercisable for an aggregate of 133,868 shares of Class A common stock, on January 1, 2022 for an aggregate of 224,516 shares of Class A common stock, and on April 1, 2022 for an aggregate of 236,016 shares of Class A common stock; all such warrants have been fully exercised, and a total of 724,750 shares have been issued to the lenders upon such exercises. We filed registration statements for the resale of such shares with the SEC on July 30, 2021, October 15, 2021, January 14, 2022, and April 15, 2022, respectively.
On September 15, 2021, in connection with the private placement with Mr. M. Salzberg pursuant to the September Purchase Agreement, we issued to Mr. M. Salzberg (i) 300,000 shares of Class A common stock, (ii) warrants to purchase 240,000 shares of Class A common stock at an exercise price of $15.00 per share, (iii) warrants to purchase 120,000 shares of Class A common stock at an exercise price of $18.00 per share, and (iv) warrants to purchase 60,000 shares of Class A common stock at an exercise price of $20.00 per share, for an aggregate purchase price of $3.0 million.
On November 4, 2021, in connection with the Purchase Agreement and concurrently with the closing of the rights offering, we issued to RJB an aggregate of (i) 6,265,813 shares of Class A common stock, (ii) warrants to purchase 5,012,354.58219726 shares of Class A common stock at an exercise price of $15.00 per share, (iii) warrants to purchase 2,506,177.291098630 shares of Class A common stock at an exercise price of $18.00 per share, and (iv) warrants to purchase 1,253,088.645549316 shares of Class A common stock at an exercise price of $20.00 per share, for an aggregate purchase price of $62.7 million in two private placements. On November 4, 2021, we entered into a registration rights agreement with RJB and Mr. M. Salzberg, pursuant to which RJB, Mr. M. Salzberg and their respective permitted transferees have the right to request that we file a shelf registration statement with respect to all or a portion of the shares that they hold, which include (x) shares of Class A common stock held prior to the execution of the Purchase Agreement, and (y) shares of Class A common stock and shares underlying the warrants purchased in connection with the Purchase Agreement.
On February 14, 2022, in connection a private placement with RJB pursuant to a purchase agreement (the “February Purchase Agreement”), we issued to RJB an aggregate of (i) 357,143 shares of Class A common stock, (ii) warrants to purchase 285,714 shares of Class A common stock at an exercise price of $15.00 per share, (iii) warrants to purchase 142,857 shares of Class A common stock at an exercise price of $18.00 per share, and (iv) warrants to purchase 71,429 shares of Class A common stock at an exercise price of $20.00 per share, for an aggregate purchase price of $5.0 million. On February 14, 2022, we entered into a registration rights agreement with RJB pursuant to which, among other things, RJB and its permitted transferees have the right to request that we file a shelf registration statement with respect to all or a portion of the shares of Class A common stock and shares underlying the warrants purchased in connection with the February Purchase Agreement.
On April 29, 2022, in connection with a private placement with RJB, pursuant to the “April RJB Purchase Agreement”, we issued to (i) Long Live Bruce, LLC (“LLB”), which was assigned RJB’s rights to purchase the foregoing shares, an aggregate of 1,666,667 shares of Class A common stock. On April 29, 2022, in connection with a