Prothena Corporation plc provided earnings guidance for the year 2024. The company expects full year 2024 net cash used in operating and investing activities to be between $208 million and $225 million. The estimated full year 2024 net cash used in operating and investing activities is primarily driven by an estimated net loss of $229 million to $255 million, which includes an estimated $51 million of noncash share-based compensation expense.