9119 Gaither Road
Gaithersburg, MD 20877
August 2,
2024
Notice of Adjournment of Special Meeting of Stockholders
Dear Stockholder:
The Special Meeting of Stockholders (the
“Special Meeting”) for NexImmune, Inc. (the “Company”) was reconvened on August 2, 2024 and has been adjourned to August 9, 2024 at 10:00 a.m., Eastern Time, to be held virtually via live webcast on the Internet. The close of
business on June 11, 2024 will continue to be the record date for the determination of stockholders of the Company entitled to vote at the Special Meeting.
The Proxy Statement we sent you in June 2024 contains important information regarding the proposal to approve the liquidation and dissolution of the Company
and the Plan of Liquidation and Dissolution that all stockholders are being asked to consider. A copy of the Proxy Statement may be viewed or downloaded by following the instructions at www.proxyvote.com. If you have any questions regarding
the proposals, or need assistance with voting, you may call Laurel Hill Advisory Group, LLC, the Company’s proxy solicitor, toll-free at
1-888-742-1305.
If you are the
record holder of your shares, you may vote in one of four ways. You may submit a proxy to vote over the Internet, by telephone, or by mail or you may vote at the Special Meeting.
You may submit a proxy to vote over the Internet or by telephone: Follow the instructions included in the Notice or, if you received printed materials,
in the proxy card to vote by Internet or telephone.
You may submit a proxy to vote by mail: If you received a proxy card by mail, you can vote by
mail by completing, signing, dating and returning the proxy card as instructed on the card.
You may vote during the meeting: If you attend the
Special Meeting, you may participate in and vote online at the Special Meeting. You will need to enter your 16-digit control number to vote your shares at the Special Meeting. Please visit
www.virtualshareholdermeeting.com/NEXI2024SM2 for instructions on how to attend the Special Meeting live over the Internet. To vote during the Special Meeting when the polls open use the “vote” button on the interface.
Telephone and Internet voting for stockholders of record will be available until 11:59 p.m. Eastern Time on August 8, 2024 and mailed proxy cards must be
received by August 8, 2024 in order to be counted at the Special Meeting. If the Special Meeting is adjourned or postponed, these deadlines may be extended.
Thank you for your prompt attention to this matter and your continued confidence in NexImmune, Inc. If you have already voted, we appreciate your
participation, and you may disregard this notice.
Sincerely,
Sol J. Barer, Ph.D.
Chairman of the Board of Directors