10-year options to purchase 196,995 shares of Common Stock to the Company’s Sr. Vice President and Chief Development Officer under the Company’s Amended and Restated 2006 Employee Stock Incentive Plan, as amended (the “Plan”). The options have an exercise price equal to $3.59 per share and vest over a four-year period in 16 equal quarterly increments. Vesting of the options granted to the Sr. Vice President and Chief Development Officer are subject to automatic acceleration in full upon a Corporate Transaction or a Change in Control, as those terms are defined in the Plan, and are subject to certain other terms and conditions. The Company’s President and Chief Executive Officer may, in his discretion, grant options to the Company’s Sr. Vice President and Chief Development Officer to purchase additional shares if the Company effects certain transactions in which it issues additional shares of Common Stock. The Company estimated the fair value of the options on the date of grant using the Black-Scholes option-pricing model to be approximately $0.5 million based on the following weighted average assumptions: share price equal to $3.59; dividend yield of 0% for all years; expected volatility of 80.43%; risk-free interest rate of 0.59%; and expected life of six years.

10-year options to purchase 760,311 shares of Common, in the aggregate, to certain of the Company’s employees under the Plan. The options granted have an exercise price equal to $3.66 per share and vest over a four-year period in 16 equal quarterly increments. The Company estimated the fair value of the options on the date of grant using the Black-Scholes option-pricing model to be approximately $1.9 million based on the following weighted average assumptions: share price equal to $3.66; dividend yield of 0% for all years; expected volatility of 80.49%; risk-free interest rate of 0.45%; and expected life of six years.

On August 11, 2020, the Company granted, with the approval of the Company’s compensation committee, the following:

447,927 shares of restricted Common Stock to its President, Chief Executive Officer under the Plan. The restricted shares vest over a four-year period in 16 equal quarterly increments and are subject to automatic acceleration in full upon a Corporate Transaction or a Change in Control, and are subject to certain other terms and conditions. The Company estimated the fair value of the restricted stock on the date of grant to be approximately $1.6 million.

246,146 shares of restricted Common Stock to its Sr. Vice President, Chief Financial Officer under the Plan. Of the shares, 27,855 shares vested on September 22, 2020. The remaining 218,291 of the shares vest in 16 equal, quarterly increments over a four-year period, commencing upon the date of grant and are subject to automatic acceleration in full upon a Corporate Transaction or a Change in Control, and are subject to certain other terms and conditions. The Company estimated the fair value of the restricted stock on the date of grant to be approximately $0.9 million.

10-year options to purchase 122,656 shares of Common Stock to the Company’s Sr. Vice President, Operations under the Plan. The options have an exercise price equal to $3.59 per share and vest over a four-year period in 16 equal quarterly increments. Vesting of the options granted to the Sr. Vice President, Operations are subject to automatic acceleration in full upon a Corporate Transaction or a Change in Control, and are subject to certain other terms and conditions. The Company’s President and Chief Executive Officer may, in his discretion, grant options to the Company’s Sr. Vice President, Operations to purchase additional shares if the Company effects certain transactions in which it issues additional shares of Common Stock. The Company estimated the fair value of the options on the date of grant using the Black-Scholes option-pricing model to be approximately $0.3 million based on the following weighted average assumptions: share price equal to $3.59; dividend yield of 0% for all years; expected volatility of 80.51%; risk-free interest rate of 0.365%; and expected life of six years.

On September 14, 2020, the Company issued 200,000 shares of Common Stock in connection with the cash exercise of a warrant issued on March 18, 2020, as part of the Company’s private placement of Common Stock and warrants. The Company generated net proceeds equal to $472,000 from the exercise of the warrant.

NOTE 5 - STOCK TRANSACTIONS (Continued)

On October 1, 2020, the Company entered into the Sales Agreement with the Agent. Pursuant to the terms of the Sales Agreement, the Company may sell from time to time through the Agent ATM Shares having an aggregate offering price of up to $30 million. The ATM Shares will be issued pursuant to the Company’s shelf registration statement on Form S-3 (Registration No. 333-230604). The Company intends to use the net proceeds from the offering, after deducting the Agent’s commissions and the Company’s offering expenses, for general corporate purposes.