Prothena plc Net Income

The latest net income for PRTA is $-44M as of June 2026. That compares with $-300M in the prior-year period — up 85.5% year over year. That is below the Healthcare sector average of $17B. Investors often review this figure alongside Prothena plc's historical trend and sector peers before judging valuation or financial health.

Over the past year, PRTA's net income moved from $-300M to $-44M — a 85.5% year-over-year increase. If the trend continues in the same direction for several quarters, it can signal a meaningful shift in Prothena plc's operating scale or balance-sheet position.

Against Healthcare companies, PRTA currently prints $-44M for net income, while the sector average sits near $17B. That is roughly 100.3% below the sector mean. Large gaps often invite a closer look at Prothena plc's growth, margins, and balance sheet.

A net income figure of $-44M for PRTA is a snapshot of scale on that line item. On its own it does not say whether the business is healthy — you also want growth rate, margins, and how the number compares with similar companies. The Healthcare average is about $17B. Explore the charts below for those layers of context.

After noting PRTA's net income ($-44M), review year-over-year change from $-300M, peer averages, and a few neighboring metrics such as revenue, margins, or valuation multiples. That combination usually beats staring at a single figure. The navigation links on this page jump you to those related views.