PROTHENA CORP PUBLIC LTD CO financial data

Symbol
PRTA on Nasdaq
Location
Dublin 2, Ireland
Fiscal year end
31 December
Latest financial report
10-K - Q4 2025 - 27 Feb 2026

Key Ratios

Label TTM Value / Value Unit Change %
Current Ratio 708% % -40%
Debt-to-equity 18% % 22%
Return On Equity -73% % -214%
Return On Assets -62% % -206%

Shares

Label TTM Value / Value Unit Change %
Entity Common Stock, Shares Outstanding 53,832,982 shares 0.01%
Common Stock, Shares, Outstanding 53,832,982 shares 0.01%
Entity Public Float $326,600,000 USD -62%
Common Stock, Value, Issued $538,000 USD 0%
Weighted Average Number of Shares Outstanding, Basic 53,829,000 shares 0.11%
Weighted Average Number of Shares Outstanding, Diluted 53,829,000 shares 0.11%

Income Statement

Label TTM Value / Value Unit Change %
Revenue from Contract with Customer, Excluding Assessed Tax $9,684,000 USD -93%
Research and Development Expense $134,852,000 USD -39%
General and Administrative Expense $59,392,000 USD -12%
Operating Income (Loss) $214,640,000 USD -39%
Nonoperating Income (Expense) $13,811,000 USD -46%
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest $200,829,000 USD -56%
Income Tax Expense (Benefit) $43,263,000 USD
Net Income (Loss) Attributable to Parent $244,092,000 USD -100%
Earnings Per Share, Basic -4.53 USD/shares -100%
Earnings Per Share, Diluted -4.53 USD/shares -100%

Balance Sheet

Label TTM Value / Value Unit Change %
Cash and Cash Equivalents, at Carrying Value $307,531,000 USD -35%
Accounts Receivable, after Allowance for Credit Loss, Current $0 USD -100%
Assets, Current $315,193,000 USD -35%
Deferred Income Tax Assets, Net $0 USD -100%
Property, Plant and Equipment, Net $2,144,000 USD -30%
Operating Lease, Right-of-Use Asset $8,125,000 USD -24%
Other Assets, Noncurrent $482,000 USD -87%
Assets $326,804,000 USD -40%
Accounts Payable, Current $5,875,000 USD -24%
Employee-related Liabilities, Current $11,350,000 USD -22%
Liabilities, Current $40,843,000 USD -16%
Operating Lease, Liability, Noncurrent $5,487,000 USD -33%
Liabilities $46,330,000 USD -23%
Retained Earnings (Accumulated Deficit) $1,346,433,000 USD -22%
Stockholders' Equity Attributable to Parent $280,474,000 USD -42%
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest $280,474,000 USD -42%
Liabilities and Equity $326,804,000 USD -40%

Popular Metrics

Label TTM Value / Value Unit Change %
Net Cash Provided by (Used in) Operating Activities $53,363,000 USD 27%
Net Cash Provided by (Used in) Financing Activities $48,000 USD -106%
Net Cash Provided by (Used in) Investing Activities $42,000 USD 59%
Common Stock, Shares Authorized 100,000,000 shares 0%
Common Stock, Shares, Issued 53,832,982 shares 0.01%
Common Stock, Par or Stated Value Per Share 0.01 USD/shares 0%
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents $308,391,000 USD -35%
Deferred Tax Assets, Valuation Allowance $266,576,000 USD 34%
Deferred Tax Assets, Gross $268,757,000 USD 9.8%
Operating Lease, Liability $8,373,000 USD -23%
Depreciation $900,000 USD 0%
Lessee, Operating Lease, Liability, to be Paid $9,093,000 USD -25%
Property, Plant and Equipment, Gross $9,196,000 USD -19%
Operating Lease, Liability, Current $2,886,000 USD 11%
Lessee, Operating Lease, Liability, to be Paid, Year Two $3,269,000 USD 3.5%
Lessee, Operating Lease, Liability, to be Paid, Year One $3,301,000 USD 3.8%
Lessee, Operating Lease, Liability, Undiscounted Excess Amount $720,000 USD -44%
Lessee, Operating Lease, Liability, to be Paid, Year Three $2,523,000 USD -23%
Deferred Tax Assets, Operating Loss Carryforwards $203,434,000 USD 19%
Unrecognized Tax Benefits $15,909,000 USD 3.1%
Lessee, Operating Lease, Liability, to be Paid, Year Four $2,523,000 USD -23%
Operating Lease, Payments $0 USD -100%
Additional Paid in Capital $1,626,369,000 USD 2.4%
Depreciation, Depletion and Amortization $223,000 USD 3.7%
Deferred Tax Assets, Net of Valuation Allowance $2,181,000 USD -95%