The Company has a total of 747,383 warrants outstanding at a weighted average exercise price of $11.06 to purchase its common stock as of December 31, 2022. These warrants are summarized as follows:
| | | | | | | |
Issuance Date | | Number of Shares | | Exercise Price | | Expiration Date |
5/7/2018 | | 403,025 | | $ | 11.09 | | 5/8/2023 |
11/26/2018 | | 313,358 | | $ | 11.55 | | 11/26/2023 |
1/28/2021 | | 31,000 | | $ | 5.78 | | 1/28/2023 |
Equity Compensation Plans
2009 Stock Incentive Plan
In 2009, the Company adopted the Heat Biologics, Inc. 2009 Stock Option Plan (the “2009 Plan”), under which stock options to acquire 21,739 common shares could be granted to key employees, directors, and independent contractors. Under the 2009 Plan, both incentive and non-qualified stock options could be granted under terms and conditions established by the Board of Directors. The exercise price for incentive stock options was the fair market value of the related common stock on the date the stock option was granted. Stock options granted under the 2009 Plan generally have terms of 10 years and have various vesting schedules.
The Company amended the 2009 Stock Option Plan and all related addendum agreements in April 2011. This second amendment increased the number of shares available for issuance from 21,739 to 65,217. The Company amended the 2009 Plan to increase the number of shares available for issuance to 86,957. The 2009 Plan expired in September 2019, however all options outstanding at the time of expiration remained outstanding and exercisable by their term. As of December 31, 2022 and 2021, there were 1,135 and 2,622 stock options outstanding under the 2009 Plan, respectively.
2014 Stock Incentive Plan
In June 2014, the stockholders approved the Heat Biologics, Inc. 2014 Stock Option Plan (the “2014 Plan”), under which the Company is authorized to grant 50,000 awards in the form of both incentive and non-qualified stock options, restricted stock, stock appreciation rights and other stock-based awards with terms established by the Compensation Committee of the Board of Directors which has been appointed by the Board of Directors to administer the 2014 Plan. In 2015, the stockholders approved an amendment to the Plan to increase the number of shares by 60,000 and in 2016, the stockholders approved an amendment that allowed the Company to grant up to 300,000 awards in total. As of December 31, 2022 and 2021, there were 17,385 and 21,368 stock options outstanding under the 2014 Plan, respectively.
2017 Stock Incentive Plan
In June 2017, the stockholders approved the Heat Biologics, Inc. 2017 Stock Incentive Plan (the “2017 Plan”), under which the Company is authorized to grant 500,000 awards in the form of both incentive and non-qualified stock options, restricted stock, stock appreciation rights and other stock-based awards with terms established by the Compensation Committee of the Board of Directors which has been appointed by the Board of Directors to administer the 2017 Plan. As of December 31, 2022 and 2021 there were 31,018 and 38,227 stock options outstanding under the 2017 Plan, respectively.
2018 Stock Incentive Plan
In October 2018, the stockholders approved the Heat Biologics, Inc. 2018 Stock Incentive Plan (the “2018 Plan”), under which the Company is authorized to grant 571,428 awards in the form of both incentive and non-qualified stock options, restricted stock, stock appreciation rights and other stock-based awards with terms established by the Compensation Committee of the Board of Directors which has been appointed by the Board of Directors to administer the 2018 Plan. At our 2019 Annual Meeting of Stockholders, the stockholders approved an amendment to the 2018 Plan to increase the number of shares by 571,428. As of December 31, 2022 and 2021 there were 6,955,758 and 2,847,755 stock options outstanding under the 2018 plan, respectively.