Erasca (ERAS) plans to sell $500 million in common stock in an underwritten public offering.
Underwriters are expected to receive a 30-day option to buy up to an additional $75 million in shares, the company said Monday in a statement.
Erasca expects to use the net proceeds to finance research and development, and for working capital and general corporate purposes.
The company's shares fell 2.2% in after-hours trading.