NextCure Inc

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IMPORTANT INFORMATION ABOUT THE ANNUAL MEETING AND VOTING

Attending the Annual Meeting

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You will be able to attend the Annual Meeting by visitingwww.virtualshareholdermeeting.com/ NXTC2024 and using your 16-digit control number included on your Notice, on your Proxy Card, or on the instructions that accompanied your Proxy Materials to enter the meeting.

If your shares are registered directly in your name with our transfer agent, American Stock Transfer & Trust Company, LLC, you are considered the stockholder of record with respect to those shares, and the Notice was sent directly to you. If your shares are held in a stock brokerage account or by a bank, trustee, or other nominee, you are considered the beneficial owner of shares held in street name, your broker, bank, trustee, or other nominee is considered, with respect to those shares, the stockholder of record, and the Notice or voting instructions are being forwarded to you by that organization.

The virtual meeting platform is fully supported across major web browsers and multiple device types running the most updated version of applicable software and plugins. Participants should ensure that they have a strong internet connection wherever they intend to participate in the Annual Meeting. Please allow ample time for online check-in, which will begin at 9:45 a.m. Eastern Time. We will have technicians ready to assist you with any technical difficulties you may have accessing the virtual Annual Meeting. If you encounter any difficulties accessing the virtual Annual Meeting during check-in or during the meeting, please call the technical support number that will be posted on the virtual meeting login page. We will endeavor to answer as many questions submitted by stockholders as time permits at the Annual Meeting. Further information regarding procedures for asking questions and rules of conduct for the meeting will be posted on the virtual meeting login page and available on our investor webpage, http://ir.nextcure.com. A replay of our Annual Meeting webcast will be available atwww.virtualshareholdermeeting.com/​NXTC2024 and will remain there for one year.

We believe that conducting the Annual Meeting as a virtual meeting will encourage higher levels of stockholder participation while also helping us reduce environmental and other costs associated with the Annual Meeting.

Stockholders Entitled to Vote

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The Board has set April 24, 2024 as the record date for the Annual Meeting. If you were the owner of our common stock at the close of business on the record date, you are entitled to vote at the Annual Meeting. You are entitled to one vote for each share of common stock you held on the record date. At the close of business on the record date, there were 27,973,289 shares of our common stock issued, outstanding and entitled to vote.

A list of stockholders of record entitled to vote at the Annual Meeting will be open to examination by any stockholder, for any purpose germane to the Annual Meeting, during normal business hours for a period of ten days before the Annual Meeting at our corporate offices at 9000 Virginia Manor Road, Suite 200, Beltsville, Maryland 20705.

Quorum

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A majority of our issued and outstanding shares of common stock as of the record date must be present at the Annual Meeting, either in attendance or by proxy, to hold the Annual Meeting and conduct business. This is called a “quorum.” Your shares will be counted as present at the Annual Meeting if you either attend our Annual Meeting or properly submit your proxy prior to the Annual Meeting. Shares subject to a broker non-vote will be counted as present for the purpose of determining the presence or absence of a quorum for the transaction of business at the Annual Meeting.

Voting Methods

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Voting Before the Meeting

To vote your shares before the Annual Meeting, please follow the instructions for Internet or telephone voting on the Notice. If you request printed copies of the Proxy Materials by mail, you may also vote by