Cellectar Biosciences, Inc.

2026 Annual Meeting of Stockholders

JULY 7, 2026 AT 10:00 a.m. EASTERN TIME FOR STOCKHOLDERS OF RECORD AS OF MAY 19, 2026

THIS PROXY IS SOLICITED ON BEHALF OF THE BOARD OF DIRECTORS OF CELLECTAR BIOSCIENCES, INC.

The undersigned hereby appoints James Caruso, Chad Kolean, and Asher Rubin, and each or any of them, as the true and lawful attorneys of the undersigned, with full power of substitution and revocation, and authorizes them, and each of them, to vote all the shares of Common Stock of Cellectar Biosciences, Inc. which the undersigned is entitled to vote at said meeting and any adjournment thereof upon the matters specified and upon such other matters as may be properly brought before the meeting or any adjournment thereof, conferring authority upon such true and lawful attorneys to vote in their discretion on such other matters as may properly come before the meeting and revoking any proxy heretofore given. The Annual Meeting will be held in virtual-only format. In order to attend the meeting, you must first register at https://web.viewproxy.com/clrb/2026 by 11:59 p.m. Eastern Time on July 6, 2026. After registering, you will receive an e-mail containing a unique link and password that will enable you to attend the meeting and vote at the meeting and at any adjournment or postponement thereof.
THE SHARES REPRESENTED BY THIS PROXY, WHEN PROPERLY EXECUTED, WILL BE VOTED AS DIRECTED OR, IF NO DIRECTION IS GIVEN, SHARES VOTED FOR THE PROXY WILL BE VOTED “FOR” THE NOMINEES LISTED IN PROPOSAL 1 AND “FOR” PROPOSALS 2, 3, 4, 5 AND 6. THE PROXIES WILL VOTE IN THEIR DISCRETION ON ANY OTHER BUSINESS AS MAY PROPERLY COME BEFORE THE MEETING AND ANY ADJOURNMENT THEREOF.
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