Growth & profitability
- Revenue has grown 62.6% per year over the past 5 years.
- Operating margin has expanded, at -2216.4% in the latest year.
PRTA Financials PROTHENA CORP PUBLIC LTD CO
15 years of revenue, profit, cash flow and balance-sheet history through FY2025, from SEC filings — with a computed, factual read of the trend. Updated Overview →
RevenueNet income
GrossOperatingNet
ROEROA
Free cash flow
CashTotal debt
OperatingInvestingFinancing
Key annual figures
| FY | Revenue | Net income | Gross M | Op M | ROE | ROA | FCF | Total debt | Cash |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | $10M | -$244M | 0.0% | -2216.4% | -87.0% | -74.7% | — | — | $308M |
| 2024 | $135M | -$122M | 0.0% | -114.4% | -25.1% | -22.4% | — | — | $471M |
| 2023 | $91M | -$147M | 0.0% | -209.1% | -26.2% | -21.1% | — | — | $619M |
| 2022 | $54M | -$117M | 0.0% | -244.1% | -18.8% | -15.4% | — | — | $710M |
| 2021 | $201M | $67M | 0.0% | 35.9% | 14.4% | 11.0% | — | — | $579M |
| 2020 | $853000 | -$111M | 0.0% | -13216.2% | -60.4% | -33.4% | — | — | $295M |
| 2019 | $814000 | -$78M | 0.0% | -10527.9% | -28.5% | -18.5% | — | — | $376M |
| 2018 | $955000 | -$156M | 0.0% | -16634.0% | -48.2% | -31.2% | — | — | $428M |
| 2017 | — | -$153M | — | — | -37.6% | -30.9% | — | — | $418M |
| 2016 | — | -$160M | — | — | -43.8% | -34.8% | — | — | $387M |
| 2015 | — | -$81M | — | — | -22.4% | -20.9% | — | — | $371M |
| 2014 | — | -$7M | — | — | -2.5% | -2.4% | — | — | $294M |
| 2013 | — | -$41M | — | — | -23.7% | -22.5% | — | — | $177M |
| 2012 | — | -$41M | — | — | -32.7% | -32.0% | — | — | $125M |
| 2011 | — | -$30M | — | — | — | — | — | — | $0 |
RevenueNet income
GrossOperatingNet
ROEROA
Free cash flow
CashTotal debt
OperatingInvestingFinancing
Key quarterly figures
| Quarter | Revenue | Net income | Gross M | Op M | ROE | ROA | FCF | Total debt | Cash |
|---|---|---|---|---|---|---|---|---|---|
| Jun '26 | $1M | -$19M | 0.0% | -2089.2% | -6.5% | -6.1% | — | — | $288M |
| Mar '26 | $51M | $33M | 0.0% | 58.8% | 10.5% | 9.4% | — | — | $329M |
| Dec '25 | $21000 | -$22M | 0.0% | -115252.4% | -7.7% | -6.6% | — | — | $308M |
| Sep '25 | $2M | -$37M | 0.0% | -1666.3% | -12.4% | -10.4% | — | — | $331M |
| Jun '25 | $4M | -$126M | 0.0% | -1914.4% | -38.8% | -31.5% | — | — | $371M |
| Mar '25 | $3M | -$60M | 0.0% | -2319.0% | -13.8% | -12.2% | — | — | $418M |
| Dec '24 | $2M | -$58M | 0.0% | -3056.9% | -11.9% | -10.6% | — | — | $471M |
| Sep '24 | $970000 | -$59M | 0.0% | -6857.0% | -11.0% | -9.9% | — | — | $519M |
| Jun '24 | $132M | $67M | 0.0% | 44.2% | 11.5% | 10.4% | — | — | $564M |
| Mar '24 | $50000 | -$72M | 0.0% | -163056.0% | -14.4% | -11.6% | — | — | $547M |
| Dec '23 | $316000 | -$67M | 0.0% | -24846.5% | -12.0% | -9.7% | — | — | $619M |
| Sep '23 | $85M | $22M | 0.0% | 12.1% | 3.5% | 2.9% | — | — | $671M |
| Jun '23 | $4M | -$55M | 0.0% | -1654.7% | -9.4% | -7.6% | — | — | $659M |
| Mar '23 | $2M | -$47M | 0.0% | -2596.8% | -7.7% | -6.3% | — | — | $686M |
| Dec '22 | $50M | $6M | 0.0% | -0.1% | 1.0% | 0.8% | — | — | $710M |
| Sep '22 | $2M | -$46M | 0.0% | -3317.9% | -11.3% | -8.3% | — | — | $496M |
| Jun '22 | $1M | -$41M | 0.0% | -3293.4% | -10.1% | -7.5% | — | — | $509M |
| Mar '22 | $1M | -$36M | 0.0% | -3290.9% | -8.3% | -6.2% | — | — | $543M |
| Dec '21 | $1M | -$33M | 0.0% | -2823.5% | -7.1% | -5.4% | — | — | $579M |
| Sep '21 | $139M | $109M | 0.0% | 78.5% | 22.3% | 17.3% | — | — | $600M |
Valuation over time
How the market has priced PRTA against its own fundamentals since 2023-03 — each month-end's share price set against the most recent annual filing, so the multiple moves as price runs ahead of (or behind) earnings. Split-adjusted.
- The price-to-sales ratio has risen from 46.2× (Mar '23) to 50.9× (Sep '26).
P/S
Frequently asked questions
Is PRTA growing its revenue and profit?
Over the past 5 years, PROTHENA CORP PUBLIC LTD CO's revenue has grown 62.6% per year. These are computed facts, not advice.
How much debt does PRTA have?
As of FY2025, PROTHENA CORP PUBLIC LTD CO reported — of total debt against $308M of cash.
What is PRTA's profit margin?
In FY2025, gross margin was —, operating margin -2216.4%, and net margin -2520.6%.
Where does this data come from?
All figures are extracted from the company’s SEC EDGAR/XBRL filings — 10-K annual reports and 10-Q quarterly reports (use the Annual / Quarterly toggle). Quarterly figures are derived from the as-filed statements (year-to-date amounts are differenced into discrete quarters). Growth rates and ratios are computed by tradmap; nothing here is investment advice.
Source: SEC EDGAR / XBRL (10-K + 10-Q filings) · prices EOD (Databento), corporate-action-adjusted · growth rates, valuation multiples & ratios computed by tradmap. Valuation uses each month-end price against the latest annual filing. Informational only — not investment advice.