Prothena Corp Public Ltd Co financial data

Symbol
PRTA on Nasdaq
Location
Dublin 2, Ireland
Fiscal year end
December 31
Latest financial report
10-Q - Q3 2025 - Nov 6, 2025

Key Ratios

Label TTM Value / Value Unit Change %
Current Ratio 762 % -36.7%
Debt-to-equity 16.2 % -7.11%
Return On Equity -72.7 % -200%
Return On Assets -62.5 % -204%

Shares

Label TTM Value / Value Unit Change %
Entity Common Stock, Shares Outstanding 53.8M shares +0.04%
Common Stock, Shares, Outstanding 53.8M shares +0.04%
Entity Public Float 870M USD -70%
Common Stock, Value, Issued 538K USD 0%
Weighted Average Number of Shares Outstanding, Basic 53.8M shares +0.07%
Weighted Average Number of Shares Outstanding, Diluted 53.8M shares +0.07%

Income Statement

Label TTM Value / Value Unit Change %
Revenue from Contract with Customer, Excluding Assessed Tax 11.8M USD -91.2%
Research and Development Expense 170M USD -27.2%
General and Administrative Expense 63.6M USD -5.49%
Operating Income (Loss) -255M USD -51.8%
Nonoperating Income (Expense) 16.6M USD -41.1%
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest -239M USD -70.5%
Income Tax Expense (Benefit) 41.7M USD +55.6%
Net Income (Loss) Attributable to Parent -280M 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 331M USD -36.3%
Accounts Receivable, after Allowance for Credit Loss, Current 0 USD -100%
Assets, Current 340M USD -36.5%
Deferred Income Tax Assets, Net 0 USD -100%
Property, Plant and Equipment, Net 2.46M USD -24.3%
Operating Lease, Right-of-Use Asset 8.85M USD -22.4%
Other Assets, Noncurrent 482K USD -87.2%
Assets 353M USD -40.8%
Accounts Payable, Current 10.5M USD +1.68%
Employee-related Liabilities, Current 7.66M USD -35.5%
Liabilities, Current 51.4M USD +10.8%
Operating Lease, Liability, Noncurrent 6.2M USD -30.2%
Other Liabilities, Noncurrent 0 USD -100%
Liabilities 57.6M USD -5.34%
Retained Earnings (Accumulated Deficit) -1.32B USD -26.9%
Stockholders' Equity Attributable to Parent 295M USD -44.8%
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest 295M USD -44.8%
Liabilities and Equity 353M USD -40.8%

Popular Metrics

Label TTM Value / Value Unit Change %
Net Cash Provided by (Used in) Operating Activities -53.4M USD +27%
Net Cash Provided by (Used in) Financing Activities 836K USD -96.4%
Net Cash Provided by (Used in) Investing Activities -42K USD +59.2%
Common Stock, Shares Authorized 100M shares 0%
Common Stock, Shares, Issued 53.8M 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 332M USD -36.2%
Deferred Tax Assets, Valuation Allowance 199M USD +9.44%
Deferred Tax Assets, Gross 245M USD +11.9%
Operating Lease, Liability 9.08M USD -21%
Depreciation 900K USD 0%
Lessee, Operating Lease, Liability, to be Paid 9.93M USD -23.3%
Property, Plant and Equipment, Gross 9.38M USD -17.3%
Operating Lease, Liability, Current 2.88M USD +10.2%
Lessee, Operating Lease, Liability, to be Paid, Year Two 3.27M USD +3.52%
Lessee, Operating Lease, Liability, to be Paid, Year One 3.3M USD +3.55%
Operating Lease, Weighted Average Discount Rate, Percent 0.04 pure 0%
Lessee, Operating Lease, Liability, Undiscounted Excess Amount 850K USD -41.5%
Lessee, Operating Lease, Liability, to be Paid, Year Three 2.52M USD -22.8%
Deferred Tax Assets, Operating Loss Carryforwards 171M USD +9.71%
Unrecognized Tax Benefits 15.4M USD +15.5%
Lessee, Operating Lease, Liability, to be Paid, Year Four 2.52M USD -22.8%
Operating Lease, Payments 0 USD -100%
Additional Paid in Capital 1.62B USD +2.6%
Depreciation, Depletion and Amortization 223K USD +3.72%
Deferred Tax Assets, Net of Valuation Allowance 46M USD +24.1%