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Prothena Corporation plc Ordinary Shares (PRTA) Financial Statements

Prothena Corporation plc Ordinary Shares
SIC 2834 · PHARMACEUTICAL PREPARATIONS
FIGI BBG00393H6N0
XNAS · usd
9.54▼ 0.28 (-2.85%)
As of 2026-09-08
Valuation
Market Cap
Enterprise Value
Trailing P/E—
Price / Sales
EV / Revenue
EV / EBITDA
Financial Highlights
Revenue (TTM)
Net Income (TTM)
EBITDA
Diluted EPS (TTM)
EBITDA Margin
Net Debt
Trading Information
Previous Close9.82
Day's Range9.35 – 9.67
52-Week Range7.73 – 11.80
Volume305.1K
Avg Volume408.6K
Share Statistics
Shares Outstanding
Employees67
ExchangeXNAS
Listed2012-12-18
Share count as of July 30, 2026
Loading Income Statement…
Key questions about Prothena Corporation plc Ordinary Shares (PRTA)
What is Prothena Corporation plc Ordinary Shares's Market Cap?
Prothena Corporation plc Ordinary Shares's Market Cap is $489.8M, based on as-reported figures from SEC (XBRL) filings.
What is Prothena Corporation plc Ordinary Shares's Enterprise Value?
Prothena Corporation plc Ordinary Shares's Enterprise Value is $201.6M, based on as-reported figures from SEC (XBRL) filings.
What is Prothena Corporation plc Ordinary Shares's Price / Sales?
Prothena Corporation plc Ordinary Shares's Price / Sales is 9.0×, based on as-reported figures from SEC (XBRL) filings.
What is Prothena Corporation plc Ordinary Shares's EV / Revenue?
Prothena Corporation plc Ordinary Shares's EV / Revenue is 3.7×, based on as-reported figures from SEC (XBRL) filings.
What is Prothena Corporation plc Ordinary Shares's EV / EBITDA?
Prothena Corporation plc Ordinary Shares's EV / EBITDA is n/m, based on as-reported figures from SEC (XBRL) filings.
What is Prothena Corporation plc Ordinary Shares's Revenue (TTM)?
Prothena Corporation plc Ordinary Shares's Revenue (TTM) is $54.5M, based on as-reported figures from SEC (XBRL) filings.
What is Prothena Corporation plc Ordinary Shares's Net Income (TTM)?
Prothena Corporation plc Ordinary Shares's Net Income (TTM) is -$44.0M, based on as-reported figures from SEC (XBRL) filings.
What is Prothena Corporation plc Ordinary Shares's EBITDA?
Prothena Corporation plc Ordinary Shares's EBITDA is -$54.7M, based on as-reported figures from SEC (XBRL) filings.
What is Prothena Corporation plc Ordinary Shares's Diluted EPS (TTM)?
Prothena Corporation plc Ordinary Shares's Diluted EPS (TTM) is -0.86, based on as-reported figures from SEC (XBRL) filings.
What is Prothena Corporation plc Ordinary Shares's EBITDA Margin?
Prothena Corporation plc Ordinary Shares's EBITDA Margin is -100.3%, based on as-reported figures from SEC (XBRL) filings.
Showing the most recent year. Subscribe for full statement history.
Income Statement(in thousands of USD, except per-share data)
Source: Akyla.ai
Line ItemJun 30, 2026Mar 31, 2026Dec 31, 2025Sep 30, 2025Jun 30, 2025Mar 31, 2025Dec 31, 2024Sep 30, 2024Jun 30, 2024Mar 31, 2024Dec 31, 2023Sep 30, 2023Jun 30, 2023Mar 31, 2023Dec 31, 2022Sep 30, 2022
Total revenue
YoY growth-77.1%+1706.4%-99.0%+149.0%
Operating expenses:
Research and development
General and administrative
Restructuring costs
Total operating expenses
% of revenue2189.2%41.2%115352.4%1766.3%
Income (loss) from operations
% of revenue-2089.2%58.8%-115252.4%-1666.3%
Other income (expense):
Interest income
Other income (expense), net
Total other income, net
Income (loss) before income taxes
Provision for income taxes
Net Income (Loss)
% of revenue-1839.9%64.1%-102804.8%-1513.1%
Basic net income (loss) per ordinary share (in dollars per share)
Diluted net income (loss) per ordinary share (in dollars per share)