X0508 4 2024-04-01 0001281895 ROCKET PHARMACEUTICALS, INC. RCKT 0001991078 Ondrey Aaron C/O ROCKET PHARMACEUTICALS, INC. 9 CEDARBROOK DRIVE CRANBURY NJ 08512 true Chief Financial Officer false Common Stock 2024-04-01 4 A 0 46781 0 A 46781 D Stock Option (Right to Buy) 26.72 2024-04-01 4 A 0 69337 0 A 2034-04-01 Common Stock 69337 69337 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 April 1, 2025, with the remaining shares vesting in equal quarterly installments over the following two years. This option represents a right to purchase a total of 69,337 shares of the Issuer's common stock, one-third of which will become fully vested and exercisable on April 1, 2025, 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 Aaron Ondrey 2024-04-03