Exhibit 99.1 Relay Therapeutics Reports Third Quarter 2024 Financial Results and Corporate Highlights Reported interim RLY-2608 data demonstrating 9.2-month median PFS in heavily pre-treated patients with PI3Kα-mutated, HR+/HER2- metastatic breast cancer at RP2D Plan to initiate 2L pivotal trial of RLY-2608 + fulvestrant in 2025 Approximately $840 million in cash, cash equivalents and investments at end of Q3 2024, expected to fund operations into second half of 2027 Cambridge, Mass. – November 6, 2024 – Re ...