X0609 4 2026-07-07 0 0001279704 Cellectar Biosciences, Inc. CLRB 0001202770 CARUSO JAMES V false C/O CELLECTAR BIOSCIENCES, INC. 100 CAMPUS DRIVE FLORHAM PARK NJ 07932 1 1 0 0 President & CEO 0 Stock option (right to buy) 3.14 2026-07-07 4 A 0 250000 0 A 2036-05-28 Common stock 250000 250000 D This option was contingently granted on May 28, 2026, subject to approval by Cellectar's stockholders of Cellectar's amended 2021 Stock Incentive Plan at Cellectar's 2026 Annual Meeting of Stockholders. Such stockholder approval was obtained on July 7, 2026. This option shall vest over a period of three years from May 28, 2026, with 1/3 vesting on the first anniversary of May 28, 2026, and the remainder vesting in 24 equal monthly installments over a 24-month period beginning on the first anniversary of May 28, 2026 /s/ Chad Kolean, attorney-in-fact for James V. Caruso 2026-07-08