NOTE 16 – WARRANTS

During 2021, the Company issued warrants to Hadron to purchase up to 15,540,540 shares of common stock at an exercise price of $1.087 per share, expiring four years from issuance, as part of the Hadron transaction previously discussed in Note 13 – Mezzanine Equity. The fair value of these warrants on the issuance date of approximately $9.5 million was allocated to the warrant of the $23.0 million of proceeds from the Hadron transaction and recorded in additional paid in capital. Also during 2021, the Company issued warrants to purchase up to 2,100,000 shares of common stock at exercise prices ranging from $0.50 to $0.83 per share, expiring three and five years from issuance. The fair value of these warrants on their issuance dates approximated $1,487,000 in the aggregate which was charged to compensation expense.

During 2020, in conjunction with the $21M Debentures discussed in Note 12 – Debentures Payable, the Company issued three-year warrants to purchase up to 180,000 shares of common stock at an exercise price of $0.75 per share. Also during 2020, as discussed in Note 11– Promissory Notes, (i) in conjunction with the $8.8M Note, the Company issued three-year warrants to purchase up to 750,000 shares of common stock at an exercise price of $0.50 per share, and (ii) in consideration of the Second Extension Agreement, the Company issued four-year warrants to purchase up to 5,000,000 shares of the Company’s common stock at an exercise price of $0.25 per share. The fair value of these warrants on their issuance dates approximated $639,000 in the aggregate, of which approximately $10,000 was amortized to interest expense in the period and the remainder to be amortized over the terms of the respective debt instruments.

During 2021, warrants to purchase 1,237,500 shares of common stock were exercised at exercise prices ranging from $0.11 to $0.55 per share. Of these exercised warrants, 437,500 were exercised on a cashless basis with the exercise prices paid via the surrender of 257,438 shares of common stock. No warrants were exercised in 2020.

During 2021, warrants to purchase 6,968,637 shares of common stock with exercise prices ranging from $0.90 to $5.50 per share were forfeited or expired. During 2020, warrants to purchase 817,939 shares of common stock with exercise prices ranging from $0.40 to $2.25 per share were forfeited or expired.

At December 31, 2021 and 2020, warrants to purchase up to 26,351,571 and 16,917,168 shares of common stock, respectively, were outstanding with exercise prices ranging from $0.11 to $5.50 per share across both periods.