X0609 4 2026-08-03 0001281895 ROCKET PHARMACEUTICALS, INC. RCKT 0001251553 SOUTHWELL DAVID P false C/O ROCKET PHARMACEUTICALS, INC. 9 CEDARBROOK DRIVE CRANBURY NJ 08512 true false Common Stock 2026-08-03 4 J 0 150000 0 A 204522 D Common Stock 113124 I By The David P. Southwell Irrevocable Trust Dtd 04/14/2024 Rocket Pharmaceuticals, Inc. (the "Company") entered into a consulting agreement with the Reporting Person, dated July 21, 2026, for consulting services related to the Company's strategic and financial activities. As compensation for services rendered, the Reporting Person received 150,000 restricted stock units ("RSUs") on August 3, 2026. Represents RSUs that convert to common stock on a one-for-one basis. One-third of such RSUs will vest in full on August 3, 2027, with the remaining two-thirds vesting in equal quarterly installments over the following two years. /s/ Martin Wilson, as attorney-in-fact for David Southwell 2026-08-05