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10-Q

Quarterly Report

PROTHENA CORPORATION PUBLIC LIMITED COMPANY PRTA

0001559053-26-000017

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Filed
May 7, 2026 12:00 AM ET
Period of report

On SEC.gov

Financials in this filing

Metric Period Value
Shares Outstanding Q1 2026 · Apr 30, 2026 52.35M sh
Shares Diluted Q1 2026 · Mar 31, 2026 54.11M sh
Shares Diluted Q1 2026 · Mar 31, 2025 53.83M sh
Operating Cash Flow Q1 2026 · Mar 31, 2026 $28.88M
Operating Cash Flow Q1 2026 · Mar 31, 2025 −$53.36M
Cash And Equivalents Q1 2026 · Mar 31, 2026 $329.46M
Cash And Equivalents Q1 2026 · Dec 31, 2025 $307.53M
Cash And Equivalents Q1 2026 · Mar 31, 2025 $417.94M
Stockholders Equity Q1 2026 · Mar 31, 2026 $312.62M
Stockholders Equity Q1 2026 · Dec 31, 2025 $280.47M
Current Liabilities Q1 2026 · Mar 31, 2026 $32.52M
Current Liabilities Q1 2026 · Dec 31, 2025 $40.84M
Total Liabilities Q1 2026 · Mar 31, 2026 $37.28M
Total Liabilities Q1 2026 · Dec 31, 2025 $46.33M
Current Assets Q1 2026 · Mar 31, 2026 $339.2M
Current Assets Q1 2026 · Dec 31, 2025 $315.19M
Total Assets Q1 2026 · Mar 31, 2026 $349.89M
Total Assets Q1 2026 · Dec 31, 2025 $326.8M
Eps Diluted Q1 2026 · Mar 31, 2026 $0.60
Eps Diluted Q1 2026 · Mar 31, 2025 −$1.12
Eps Basic Q1 2026 · Mar 31, 2026 $0.61
Eps Basic Q1 2026 · Mar 31, 2025 −$1.12
Sga Expense Q1 2026 · Mar 31, 2026 $12.67M
Sga Expense Q1 2026 · Mar 31, 2025 $17.6M
Rd Expense Q1 2026 · Mar 31, 2026 $12.63M
Rd Expense Q1 2026 · Mar 31, 2025 $50.81M
Net Income Q1 2026 · Mar 31, 2026 $32.72M
Net Income Q1 2026 · Mar 31, 2025 −$60.2M
Operating Income Q1 2026 · Mar 31, 2026 $30.04M
Operating Income Q1 2026 · Mar 31, 2025 −$65.58M
Revenue Q1 2026 · Mar 31, 2026 $51.08M
Revenue Q1 2026 · Mar 31, 2025 $2.83M