NOTE F— STOCKHOLDERS’ EQUITY

Common Stock

During 2016 through 2019, the Company issued a total of 2,500,000 shares of common stock related to the exercise of stock options.

Series B Preferred Stock

On November 6, 2007, the Company sold a total of 13,000 shares of Series B Convertible Preferred Stock (“Series B Shares”) to two investors for an aggregate purchase price of $1.3 million, less offering costs of $9,265. Each share of the Series B Shares has a stated value of $100.

The Series B Shares may, at the option of each holder, be converted at any time or from time to time into shares of the Company’s common stock at the conversion price then in effect. The number of shares into which one Series B Share shall be convertible is determined by dividing $100 per share by the conversion price then in effect. The initial conversion price per share for the Series B Shares is $0.11, which is subject to adjustment for certain events, including stock splits, stock dividends, combinations, or other recapitalizations affecting the Series B Shares.

Each holder of Series B Shares is entitled to the number of votes equal to the number of shares of the Company’s common stock into which the Series B Shares could be converted on the record date for such vote, and has voting rights and powers equal to the voting rights and powers of the holders of the Company’s common stock.

No dividends are required to be paid to holders of the Series B shares. However, the Company may not declare, pay or set aside any dividends on shares of any class or series of the Company’s capital stock (other than dividends on shares of our common stock payable in shares of common stock) unless the holders of the Series B shares shall first receive, or simultaneously receive, an equal dividend on each outstanding share of Series B shares.

In the event of any liquidation, dissolution or winding up of the Company, the holders of the Series B Preferred Stock shall be entitled to receive, prior to any distribution to the holders of the Common Stock, an amount equal to $100 per share, or $1,300,000 in the aggregate, plus an amount equal to any dividends declared and unpaid with respect to each such share.