Description of the Registrants securities

Exhibit 4.1
Pharma-Bio Serv, Inc. ("we," "us," "our," or the "Company") is authorized to issue 50,000,000 shares of common stock, par value $.0001 per share, and 10,000,000 shares of preferred stock, par value $.0001 per share.
Common Stock
Holders of common stock are entitled to one vote for each share held of record on all matters submitted to a vote of stockholders and are entitled to share in such dividends as the board of directors, in its discretion, may declare from funds legally available. In the event of liquidation, each outstanding share entitles its holder to participate ratably in the assets remaining after payment of liabilities.
Our directors are elected by a plurality vote. Because holders of common stock do not have cumulative voting rights, holders or a single holder of more than 50% of the outstanding shares of common stock present and voting at an annual stockholders meeting at which a quorum is present can elect all of our directors. Our stockholders have no preemptive or other rights to subscribe for or purchase additional shares of any class of stock or of any other securities.
As of October 31, 2019, the Company has 22,995,881 shares of common stock outstanding.
The transfer agent for our common stock is American Stock Transfer & Trust Company.
Preferred Stock
The board of directors is authorized to issue up to 10,000,000 shares of preferred stock, which may be issued in series from time to time with such designations, rights, preferences and limitations as the board of directors may declare by resolution. The rights, preferences and limitations of separate series of preferred stock may differ with respect to such matters as may be determined by the board of directors, including, without limitation, the rate of dividends, method and nature of payment of dividends, terms of redemption, amounts payable on liquidation, sinking fund provisions (if any), conversion rights (if any) and voting rights. The potential exists, therefore, that additional shares of preferred stock might be issued which would grant dividend preferences and liquidation preferences to preferred stockholders over common stockholders. Unless the nature of a particular transaction and applicable statute require such approval, the board of directors has the authority to issue shares of preferred stock without stockholder approval. The issuance of preferred stock may have the effect of delaying or preventing a change in control without any further action by stockholders. As of October 31, 2019, the Company has no outstanding shares of preferred stock.
Delaware Law, Certificate of Incorporation and Bylaws.
We are subject to the provisions of Section 203 of the Delaware General Corporation Law statute. Section 203 prohibits a publicly-held Delaware corporation from engaging in a “business combination” with an “interested stockholder” for a period of three years after the person became an interested stockholder, unless the business combination is approved in a prescribed manner. A “business combination” includes mergers, asset sales and other transactions resulting in a financial benefit to the interested stockholder. Subject to certain exceptions, an “interested stockholder” is a person who, together with affiliates and associates, owns, or within the prior three years did own, 15% or more of the corporation’s voting stock.
Our certificate of incorporation contains certain provisions permitted under Delaware General Corporation Law relating to the liability of directors. The provisions eliminate a director’s liability for monetary damages for a breach of fiduciary duty, except in certain circumstances where such liability may not be eliminated under applicable law. Further, our certificate of incorporation contains provisions to indemnify our directors and officers to the fullest extent permitted by Delaware General Corporation Law.
Provisions of our certificate of incorporation and bylaws may delay or discourage transactions involving an actual or potential change in our control or change in our management, including transactions in which stockholders might otherwise receive a premium for their shares or transactions that our stockholders might otherwise deem to be in their best interests. Therefore, these provisions could adversely affect the price of our common stock. Among other things, our certificate of incorporation and bylaws:
permit our board of directors to issue up to 10,000,000 shares of preferred stock, with any rights, preferences and privileges as they may designate;
provide that the authorized number of directors may be changed only by resolution adopted by a majority of the board of directors;
provide that all vacancies, including newly created directorships, may, except as otherwise required by law or subject to the rights of holders of preferred stock as designated from time to time, be filled by the affirmative vote of a majority of directors then in office, even if less than a quorum;
divide our board of directors into three classes; and
do not provide for cumulative voting rights, which means that holders of a majority of the shares of Common Stock entitled to vote in any election of directors can elect all of the directors standing for election.