The following table summarizes all outstanding warrants to purchase shares of the Company’s common stock:
| | | | | | | | | | | |
| | | | Warrants Outstanding | | | | | |
| | | | June 30, | | December 31, | | Exercise Price | | Expiration |
Type | | Grant Date | | 2022 | | 2021 | | per Share | | Date |
| | | | | | | | | | | |
Common Warrants | | 12/19/2019 | | 40,782 | | 40,782 | | $ | 1.10 | | 12/19/2024 |
Common Warrants | | 3/27/2020 | | 65,000 | | 65,000 | | $ | 1.5313 | | 3/27/2025 |
| | | | 105,782 | | 105,782 | | | | | |
Stock Options
The Company’s Board of Directors (the “Board”) has approved 5 stock option plans: (i) the 2006 Stock Option Plan, (ii) the 2012 Restated Equity Incentive Plan (which superseded the 2006 Stock Option Plan) (the “2012 Plan”), (iii) the 2012 Non-Employee Director Stock Option Plan (the “2012 Non-Employee Director Plan”), (iv) the 2020 Equity Incentive Plan (the “2020 Plan”), and (v) the 2021 Equity Incentive Plan (the “2021 Plan”).
In September 2012, the Board approved the 2012 Non-Employee Director Plan, which authorized 269,731 shares of common stock, reserved for issuance of non-qualified options to members of the Board who are not employees of the Company.
In November 2012, the Board approved the 2012 Plan, which superseded the 2006 Stock Option Plan. Under the 2012 Plan, the Company may grant stock options, stock appreciation rights, restricted stock awards, and performance/unit share awards to employees, consultants and other service providers. Pursuant to the 2012 Plan, inclusive of annual evergreen provisions and amendments, the Company is authorized to issue 710,142 shares of common stock.
In June 2020, the Company’s stockholders approved the 2020 Equity Incentive Plan (the “2020 Plan”), which authorized 2,500,000 shares of common stock to be issued and allows for the grant of stock options as well as other forms of equity-based compensation. Pursuant to the “evergreen” provision, on January 1, 2021, 823,084 shares were added under the 2020 Plan. Upon approval of the 2021 Plan on June 11, 2021, no new shares have been or will be added to the share reserve under the 2020 Plan pursuant to its “evergreen” provisions.
In June 2021, the Company’s stockholders approved the 2021 Plan, which authorized 3,500,000 shares of common stock reserved under the 2021 Plan for the issuance of stock awards. The number of shares available for issuance under the 2021 Plan shall be automatically increased on January 1 of each year, commencing with January 1, 2022, by an amount equal to 5% of the outstanding shares of Common Stock as of the last day of the immediately preceding fiscal year. On January 1, 2022, 1,209,250 shares were added under the 2021 Plan.
As of June 30, 2022, 2,601,223 options remain available for issuance under the respective stock option plans.
Each of the Company’s stock option plans are administered by the Board, or the compensation committee of the Board, which determines the recipients and types of awards to be granted, as well as the number of shares subject to the awards, the exercise price and the vesting schedule. Each stock option granted will be designated in the award agreement as either an incentive stock option or a nonstatutory stock option. Notwithstanding such designation, however, to the extent that the aggregate fair market value of the shares with respect to which incentive stock options are exercisable for the first time by the participant during any calendar year (under all plans of the Company and any parent or subsidiary) exceeds $100,000, such options will be treated as nonstatutory stock options. Stock options are granted with an exercise price equal to the closing price of the Company’s common stock on the date of grant, and generally vest over a period of one to four years. The term of stock options granted under each of the plans cannot exceed ten years.
The estimated weighted average fair value of the options granted during the three months ended June 30, 2022 and 2021 were approximately $3.04 and $3.82 per share, respectively. The estimated weighted average fair value of the options granted during the six months ended June 30, 2022 and 2021 were approximately $2.90 and $3.27 per share, respectively.