ROCKET PHARMACEUTICALS, INC.

Highlights Recent Progress

Pivotal Phase 2 trial of RP-A501 for Danon disease to resume in 1H 2026

KRESLADI™ for severe LAD-I on track for March 28, 2026 PDUFA date

Leadership updates with the appointments of Dr. Syed Rizvi, Chief Medical Officer, Christopher Stevens, Chief Operating Officer, and Sarbani Chaudhuri, Chief Commercial & Medical Affairs Officer

Cash, cash equivalents and investments of approximately $222.8M;

expected operational runway into the second quarter of 2027

CRANBURY, NJ–November 6, 2025–Rocket Pharmaceuticals, Inc. (NASDAQ: RCKT), a fully integrated, late-stage biotechnology company advancing a sustainable pipeline of genetic therapies for rare disorders with high unmet need, today reported financial and recent operational results for the third quarter ending September 30, 2025.

“During the third quarter, we maintained disciplined execution and sharpened our strategic focus on Rocket’s AAV cardiovascular gene therapy portfolio,” said Gaurav Shah, M.D., Chief Executive Officer of Rocket Pharmaceuticals. “In under three months, we aligned with the FDA to resume the Phase 2 pivotal study of RP-A501 for Danon disease, an important milestone that underscores the FDA’s collaborative approach and recognition of the urgent need for innovative therapies in rare cardiovascular disorders. In parallel, we are advancing RP-A601 toward a pivotal Phase 2 study in PKP2-ACM and preparing RP-A701 for first-in-human evaluation in BAG3-DCM. Finally, the upcoming March PDUFA date for KRESLADI™ represents a significant near-term commercial milestone as we work to bring this potentially life-saving therapy to patients with severe LAD-I.”