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Note 7. StockholdersÂ’ Equity

Preferred Stock

We are authorized to issue 10,000,000 shares of “blank check” preferred stock with designations, rights and preferences as may be determined from time to time by our Board of Directors. As of October 31, 2018 and April 30, 2018, we had no shares of preferred stock issued and outstanding.

Common Stock

During the six months ended October 31, 2018, the Company issued 30,764 shares of common stock upon the cashless exercise of stock options.

During the six months ended October 31, 2018, the Company issued 26,807 shares of common stock upon the exercise of stock options and received proceeds of $60,102.

On September 6, 2018, the Board approved 25,000 shares of restricted stock to the Chief Financial Officer. The stock vests over 36 months and the stock price was $7.17 on the date of the grant. The value of the compensation was approximately $180,000 and will be recognized over 36 months.

Treasury Stock

On July 19, 2018, AGI in simultaneous transactions repurchased 1,000,000 shares of common stock at $7.40 per share and re-sold the shares to a large well-known institutional money manager at $7.40 per share. The shares were purchased by the Company from ESL pursuant to a Securities Purchase Agreement dated July 18, 2018. The Purchaser Ìýpaid $30,000 to a broker-dealer in connection with the transaction. (See Note 9)

Warrants

A summary of the CompanyÂ’s warrant activity during the six months ended October 31, 2018 is presented below:

Stock Incentive Plan and Stock Option Grants to Employees and Directors

On March 13, 2012, the Company adopted the 2012 Equity Incentive Plan (the “Plan”) that provides for the grant of 3,500,000 shares in the form of incentive stock options, non-qualified stock options, restricted shares, stock appreciation rights and restricted stock units to employees, consultants, officers and directors. As of October 31, 2018, there were no shares remaining under the Plan for future issuance. The Company estimates the fair value of share-based compensation utilizing the Black-Scholes option pricing model, which is dependent upon several variables such as the expected option term, expected volatility of the Company’s stock price over the expected term, expected risk-free interest rate over the expected option term, expected dividend yield rate over the expected option term, and an estimate of expected forfeiture rates. The Company believes this valuation methodology is appropriate for estimating the fair value of stock options granted to employees and directors which are subject to ASC Topic 718 requirements. These amounts are estimates and thus may not be reflective of actual future results, nor amounts ultimately realized by recipients of these grants. The Company recognizes compensation on a straight-line basis over the requisite service period for each award. The following table summarizes the assumptions the Company utilized to record compensation expense for stock options granted to employees during the period ended.

The Company utilized the simplified method to estimate the expected life for stock options granted to employees. The simplified method was used as the Company does not have sufficient historical data regarding stock option exercises. The expected volatility is based on historical volatility. The risk-free interest rate is based on the U.S. Treasury yields with terms equivalent to the expected life of the related option at the time of the grant. Dividend yield is based on historical trends. While the Company believes these estimates are reasonable, the compensation expense recorded would increase if the expected life was increased, a higher expected volatility was used, or if the expected dividend yield increased.

A summary of the CompanyÂ’s stock option activity for employees and directors during the six months ended October 31, 2018, is presented below:

During the six months ended October 31, 2018, the Company issued 30,764 shares of common stock upon the cashless exercise of 45,836 stock options.

During the six months ended October 31, 2018, the Company issued 26,807 shares of common stock upon the exercise of stock option and received proceeds of $60,102.

On July 19, 2018, the Board granted 200,000 five year options to the Chief Executive Officer and 180,000 options to each of the Chief Operating Officer and Chief Academic Officer. The fair value per option was $2.56 or $1,433,600 for all 560,000 options granted. The exercise price is $7.55 per share. As of September 6, 2018, the Board approved 180,000 five-year options to the Chief Financial Officer and 50,000 five-year options to the Chief Accounting Officer. As required by the rules of the Nasdaq Stock market, both option grants are subject to shareholder approval at the next annual meeting of shareholders scheduled for December 13, 2018, which will be the measurement date for recording the transaction.

The Company recorded compensation expense of $515,291 for the six months ended October 31, 2018 in connection with employee stock options.

As of October 31, 2018, there was $2,440,436 of unrecognized compensation costs related to non-vested share-based compensation arrangements. That cost is expected to be recognized over a weighted-average period of 3.0 years.