Exhibit 99.1 Intellia Therapeutics Announces First Quarter 2024 Financial Results and Highlights Recent Company Progress - Rapidly enrolling patients in the Phase 3 MAGNITUDE trial of NTLA-2001 for the treatment of transthyretin (ATTR) amyloidosis with cardiomyopathy - Aligned with FDA on design for a new Phase 3 trial of NTLA-2001 for the treatment of hereditary ATTR amyloidosis with polyneuropathy, subject to review of IND application; expect to initiate the study by year- end - Plan to present new clinic ...