PROTHENA CORP PUBLIC LTD CO financial data

Symbol
PRTA on Nasdaq
Location
Dublin 2, Ireland
Fiscal year end
31 December
Latest financial report
10-Q - Q3 2025 - 06 Nov 2025

Key Ratios

Label TTM Value / Value Unit Change %
Current Ratio 762% % -37%
Debt-to-equity 16% % -7.1%
Return On Equity -73% % -200%
Return On Assets -63% % -204%

Shares

Label TTM Value / Value Unit Change %
Entity Common Stock, Shares Outstanding 53,829,982 shares 0.04%
Common Stock, Shares, Outstanding 53,829,982 shares 0.04%
Entity Public Float $870,300,000 USD -70%
Common Stock, Value, Issued $538,000 USD 0%
Weighted Average Number of Shares Outstanding, Basic 53,830,000 shares 0.07%
Weighted Average Number of Shares Outstanding, Diluted 53,830,000 shares 0.07%

Income Statement

Label TTM Value / Value Unit Change %
Revenue from Contract with Customer, Excluding Assessed Tax $11,786,000 USD -91%
Research and Development Expense $170,438,000 USD -27%
General and Administrative Expense $63,594,000 USD -5.5%
Operating Income (Loss) $255,334,000 USD -52%
Nonoperating Income (Expense) $16,583,000 USD -41%
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest $238,751,000 USD -70%
Income Tax Expense (Benefit) $41,708,000 USD 56%
Net Income (Loss) Attributable to Parent $280,459,000 USD -113%
Earnings Per Share, Basic -5 USD/shares -113%
Earnings Per Share, Diluted -5 USD/shares -113%

Balance Sheet

Label TTM Value / Value Unit Change %
Cash and Cash Equivalents, at Carrying Value $330,843,000 USD -36%
Accounts Receivable, after Allowance for Credit Loss, Current $0 USD -100%
Assets, Current $339,974,000 USD -36%
Deferred Income Tax Assets, Net $0 USD -100%
Property, Plant and Equipment, Net $2,463,000 USD -24%
Operating Lease, Right-of-Use Asset $8,849,000 USD -22%
Other Assets, Noncurrent $482,000 USD -87%
Assets $352,628,000 USD -41%
Accounts Payable, Current $10,503,000 USD 1.7%
Employee-related Liabilities, Current $7,655,000 USD -36%
Liabilities, Current $51,436,000 USD 11%
Operating Lease, Liability, Noncurrent $6,203,000 USD -30%
Liabilities $57,639,000 USD -5.3%
Retained Earnings (Accumulated Deficit) $1,324,844,000 USD -27%
Stockholders' Equity Attributable to Parent $294,989,000 USD -45%
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest $294,989,000 USD -45%
Liabilities and Equity $352,628,000 USD -41%

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 $836,000 USD -96%
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 53,829,982 shares 0.04%
Common Stock, Par or Stated Value Per Share 0.01 USD/shares 0%
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents $331,703,000 USD -36%
Deferred Tax Assets, Valuation Allowance $198,869,000 USD 9.4%
Deferred Tax Assets, Gross $244,865,000 USD 12%
Operating Lease, Liability $9,082,000 USD -21%
Depreciation $900,000 USD 0%
Lessee, Operating Lease, Liability, to be Paid $9,932,000 USD -23%
Property, Plant and Equipment, Gross $9,375,000 USD -17%
Operating Lease, Liability, Current $2,879,000 USD 10%
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 3.5%
Lessee, Operating Lease, Liability, Undiscounted Excess Amount $850,000 USD -41%
Lessee, Operating Lease, Liability, to be Paid, Year Three $2,523,000 USD -23%
Deferred Tax Assets, Operating Loss Carryforwards $171,191,000 USD 9.7%
Unrecognized Tax Benefits $15,427,000 USD 16%
Lessee, Operating Lease, Liability, to be Paid, Year Four $2,523,000 USD -23%
Operating Lease, Payments $0 USD -100%
Additional Paid in Capital $1,619,295,000 USD 2.6%
Depreciation, Depletion and Amortization $223,000 USD 3.7%
Deferred Tax Assets, Net of Valuation Allowance $45,996,000 USD 24%