GNPX 2018 Proxy Statement

5 Can I change my vote after submitting my proxy? Stockholder of Record: Shares Registered in Your Name Yes. You can revoke your proxy at any time before the final vote at the Annual Meeting. If you are the record holder of your shares, you may revoke your proxy in any one of the following ways: • You may submit another properly completed proxy card with a later date. • You may grant a subsequent proxy by telephone or through the internet. • You may send a timely written notice that you are revoking your proxy to Genprex’s Secretary at Genprex, Inc., Dell Medical School, Health Discovery Building, 1701 Trinity Street, Suite 3.322, Austin, TX 78712. • You may attend the Annual Meeting and vote in person. Simply attending the meeting will not, by itself, revoke your proxy. Your most recent proxy card or telephone or internet proxy is the one that is counted. Beneficial Owner: Shares Registered in the Name of Broker or Bank If your shares are held by your brokerage firm, bank, dealer or other agent as a nominee, you should follow the instructions provided by your broker or bank. When are stockholder proposals and director nominations due for next year’s annual meeting? To be considered for inclusion in the Company’s proxy materials for next year’s annual meeting, your proposal must be submitted in writing by December 28, 2018. If you wish to submit a proposal (including a director nomination) that is not to be included in the Company’s proxy materials for next year’s annual meeting, you must do so not later than the close of business 90 days, nor earlier than the close of business 120 days, prior to the first anniversary of the date of the 2018 Annual Meeting. In the event the date of the 2019 annual meeting is more than 30 days before or more than 30 days after such anniversary date, notice must be delivered not earlier than the close of business on the 120th day prior to such annual meeting and not later than the close of business on the later of the 90th day prior to such annual meeting or the 10th day following the day on which public announcement of the date of such meeting is first made. You are also advised to review the Company’s amended and restated bylaws, which contain additional requirements relating to advance notice of stockholder proposals and director nominations. Proposals should be addressed to: Genprex, Inc. Attn: Corporate Secretary Dell Medical School, Health Discovery Building 1701 Trinity Street, Suite 3.322 Austin, TX 78712 What are “broker non-votes”? When a beneficial owner of shares held in “street name” does not give instructions to the brokerage firm, bank, dealer or other agent holding the shares as to how to vote on matters deemed to be non-routine under applicable rules, the broker or nominee cannot vote the shares. These unvoted shares are counted as “broker non-votes.”