X0508 4 2025-08-04 0001281895 ROCKET PHARMACEUTICALS, INC. RCKT 0002079768 Stevens Christopher James C/O ROCKET PHARMACEUTICALS, INC. 9 CEDARBROOK DRIVE CRANBURY NJ 08512 true Chief Operating Officer false Common Stock 2025-08-04 4 A 0 407166 0 A 407166 D Stock Option (Right to Buy) 3.07 2025-08-04 4 A 0 554071 0 A 2035-08-04 Common Stock 554071 554071 D Holdings are Restricted Stock Units ("RSUs") that convert to common stock on a one-for-one basis. One-third (1/3) of such RSUs will become fully vested on August 4, 2026, with the remaining shares vesting in equal quarterly installments over the following two years. This option represents a right to purchase a total of 554,071 shares of the Issuer's common stock, one-third of which will become fully vested and exercisable on August 4, 2026, with the remaining shares vesting in equal quarterly installments over the following two years, subject to the reporting person's continued employment with the Issuer. /s/ Martin Wilson, as attorney-in-fact for Christopher James Stevens 2025-08-06