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Prothena Corporation plc PRTA
$ 8.86 0.59%
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Quarterly report 2026-Q2
added 08-06-2026

Prothena Corporation plc Income Statement 2025-2010 | PRTA

Brief overview of income trends at Prothena Corporation plc

This overview is based on financial performance over the past five years. The revenue attributed to Prothena Corporation plc moved from 853 thousand dollars to 9.7 million dollars between the two endpoints. The cumulative result was +1035.3%, corresponding to roughly 62.6% per year. This pace points to rapid expansion of the business.

The operating result measured by EBITDA moved from −$111 million to −$214 million, or −92.2%. The operating result developed less favorably than sales. The EBITDA share of revenue changed from −13038.7% to −2207.2%. The increased EBITDA share is a positive sign.

The final result was −$111 million initially and −$244 million in the final year. The period ended with a larger loss than it began with.

The market value of the business moved from $891 million to $251 million, or −71.8%. Financial performance is stronger than the share-price trend.

What the figures show

The current trajectory does not yet confirm a sustainable recovery. The constructive conclusion rests on sales growth and higher operating efficiency. Caution is warranted because of a low EBITDA margin, a weaker final result and a weaker market valuation. The key question is whether sales can be converted into sustainable profit.

Annual Income Statement Prothena Corporation plc

2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010

Market Cap

251 M 801 M 1.43 B 2.66 B 1.53 B 891 M 493 M 465 M 1.61 B 1.59 B 1.18 B 558 M 596 M 88.3 M - -

Shares

53.8 M 53.8 M 53.2 M 47.4 M 44.2 M 39.9 M 39.9 M 39.6 M 37.7 M 34.4 M 30.3 M 24.7 M 18.6 M 14.6 M - -

Historical Prices

4.66 14.9 26.9 56.2 34.6 22.3 10.7 13.4 33.7 58.6 31.8 26.6 36 6.17 - -

Net Income

-244 M -122 M -147 M -117 M 67 M -111 M -77.7 M -156 M -153 M -160 M -80.6 M -7.15 M -41 M -41.4 M -29.7 M -

Revenue

9.68 M 135 M 91.4 M 53.9 M 201 M 853 K 814 K 955 K 27.5 M 1.06 M 1.61 M 50.9 M 676 K 2.66 M 507 K -

Operating Income

-215 M -155 M -191 M -132 M 72 M -113 M -85.7 M -159 M -155 M -160 M -79.9 M -6.65 M -40.4 M -41.4 M -29.2 M -

Interest Expense

-328 K -185 K -458 K -397 K -96 K -62 K 196 K 48 K -2.21 M 15 K -170 K 231 K -225 K - - -

EBITDA

-214 M -154 M -190 M -131 M 73.1 M -111 M -78.9 M -139 M -152 M -157 M -79.1 M -5.91 M -39.8 M -40.9 M -28.9 M -

Operating Expenses

224 M 290 M 282 M 185 M 129 M 114 M 86.6 M 144 M 183 M 161 M 81.5 M 57.5 M 41.1 M 44.1 M - -

General and Administrative Expenses

59.4 M 67.2 M 61.8 M 49.9 M 46.3 M 38.7 M 35.7 M 42.5 M 48.2 M 41.1 M 23.1 M 19.1 M 15.1 M 9.93 M 5.58 M -

All numbers in USD currency

Quarterly Income Statement Prothena Corporation plc

2026-Q2 2026-Q1 2025-Q3 2025-Q2 2025-Q1 2024-Q4 2024-Q3 2024-Q2 2024-Q1 2023-Q4 2023-Q3 2023-Q2 2023-Q1 2022-Q4 2022-Q3 2022-Q2 2022-Q1 2021-Q4 2021-Q3 2021-Q2 2021-Q1 2020-Q4 2020-Q3 2020-Q2 2020-Q1 2019-Q4 2019-Q3 2019-Q2 2019-Q1 2018-Q4 2018-Q3 2018-Q2 2018-Q1 2017-Q4 2017-Q3 2017-Q2 2017-Q1 2016-Q4 2016-Q3 2016-Q2 2016-Q1 2015-Q4 2015-Q3 2015-Q2 2015-Q1 2014-Q4 2014-Q3 2014-Q2 2014-Q1 2013-Q4 2013-Q3 2013-Q2 2013-Q1 2012-Q4 2012-Q3 2012-Q2 2012-Q1 2011-Q4 2011-Q3 2011-Q2 2011-Q1

Shares

52.1 M 53.7 M 53.8 M 53.8 M 53.8 M 53.8 M 53.8 M 53.8 M 53.7 M 53.7 M 53.6 M 53.1 M 52.5 M 52.1 M 47 M 46.8 M 46.7 M 46.7 M 45.6 M 44.3 M 40.2 M 39.9 M 39.9 M 39.9 M 39.9 M 39.9 M 39.9 M 39.9 M 39.9 M 39.9 M 39.8 M 39.8 M 38.7 M 38.5 M 38.3 M 38.1 M 35.8 M 34.8 M 34.4 M 34.4 M 34 M 31.7 M 31.4 M 30.8 M 27.4 M 27.4 M 27.4 M 22 M 21.9 M 21.9 M 17.7 M 17.7 M 17.7 M 17.7 M 14.5 M 14.5 M 14.5 M - - - -

Net Income

-18.6 M 32.7 M -36.5 M -126 M -60.2 M - -59 M 66.9 M -72.2 M - 21.9 M -54.6 M -46.9 M - -45.8 M -41.2 M -36.3 M - 109 M 27.6 M -36.7 M -30.7 M -30.6 M -26.3 M -23.6 M -21.6 M -19.4 M -15.8 M -20.9 M -22.5 M -24.6 M -59.9 M -48.7 M -47.8 M -52.4 M -17.7 M -35.4 M -48.9 M -43.2 M -40.4 M -27.5 M -24.2 M -23 M -18.3 M -15.2 M -13.1 M -13.2 M 1.29 M 17.9 M -11.1 M -9.69 M -11.3 M -8.95 M -12.2 M -8.67 M -9.71 M -10.8 M - - - -

Revenue

1.01 M 51.1 M 2.42 M 4.42 M 2.83 M - 970 K 132 M 50 K - 84.9 M 4.02 M 2.17 M - 1.52 M 1.31 M 1.15 M - 139 M 60.1 M 160 K 360 K 157 K 195 K 141 K 256 K 205 K 167 K 186 K 194 K 255 K 279 K 227 K 229 K 219 K 26.8 M 259 K 171 K 286 K 333 K 265 K 307 K 429 K 278 K 593 K 2.01 M 1.49 M 15.1 M 32.2 M 167 K 171 K 167 K 171 K 575 K 944 K 735 K 404 K - - - -

Operating Income

-21.1 M 30 M -40.2 M -84.6 M -65.6 M - -66.5 M 58.4 M -81.5 M - 10.3 M -66.5 M -56.3 M - -50.3 M -43.2 M -37.9 M - 109 M 27.9 M -32.1 M - -30.8 M -26.7 M -24.8 M - -21 M -18.5 M -23 M - -24.3 M -63.1 M -48.7 M - -53.5 M -18.1 M -36.3 M - -42.7 M -40.2 M -27.4 M - -22.7 M -18 M -15 M - -13.1 M 1.57 M 18 M - -9.57 M -11.2 M -8.97 M - -8.67 M -9.71 M -10.8 M - - - -

Interest Expense

-33 K 271 K -23 K -143 K -140 K - -66 K -51 K -77 K - -15 K -97 K -141 K - 2 K -2 K -70 K - -42 K -61 K 23 K - 11 K 16 K -24 K - -42 K 235 K -17 K - -65 K 410 K -272 K - -683 K -874 K -410 K - -268 K -86 K -207 K - -127 K -87 K 67 K - 172 K 1 K -35 K - - - - - - - - - - - -

EBITDA

-20.7 M 30.2 M -40 M -84.4 M -65.4 M - -66.3 M 58.6 M -81.3 M - 10.5 M -66.3 M -56.1 M - -50.1 M -43 M -37.8 M - 110 M 28.5 M -31.8 M - -29.7 M -26 M -24.5 M - -19.8 M -17.7 M -22.6 M - -21.9 M -61.5 M -47.9 M - -51.2 M -16.6 M -35.5 M - -41.2 M -39.5 M -27.2 M - -22.1 M -17.6 M -14.8 M - -12.9 M 1.77 M 18.2 M - -9.47 M -11 M -8.83 M - -8.36 M -9.48 M -10.7 M - - - -

Operating Expenses

22.1 M 21 M 42.7 M 89 M 68.4 M - 67.5 M 73.6 M 81.6 M - 74.6 M 70.5 M 58.5 M - 51.8 M 44.5 M 39.1 M - 29.9 M 32.1 M 32.3 M 30.7 M 31 M 26.9 M 25 M 23.5 M 21.2 M 18.7 M 23.1 M 22.9 M 24.6 M 63.3 M 48.9 M 47.5 M 53.8 M 44.9 M 36.5 M 49.4 M 43 M 40.5 M 27.7 M 24.5 M 23.1 M 18.3 M 15.6 M 15.1 M 14.6 M 13.6 M 14.2 M 10.9 M 9.74 M 11.4 M 9.14 M 12.8 M 9.61 M 10.4 M 11.2 M - - - -

General and Administrative Expenses

10.9 M 12.7 M 13.2 M 15.9 M 17.6 M - 16.8 M 16.1 M 17.5 M - 16.6 M 14.5 M 13.7 M - 12 M 13 M 11.8 M - 12 M 11 M 11.1 M - 9.4 M 9.66 M 9.74 M - 8.69 M 9.08 M 9.9 M - 9.24 M 11 M 14.2 M - 12.4 M 10.9 M 10.8 M - 16.1 M 8.13 M 7.18 M - 5.9 M 5.52 M 5.05 M - 4.23 M 4.94 M 4.87 M - 3.39 M 3.21 M 3.18 M - 2.08 M 2.43 M 2.46 M - - - -

All numbers in USD currency

The income statement is one of the three key financial reports of a company Prothena Corporation plc (alongside the balance sheet and the cash flow statement). It shows how the company makes money and what its expenses are:

  • How much revenue the company earned
  • How much it spent on production, personnel, marketing, taxes, etc.
  • What profit remained in the end

Analyzing the income statement helps an investor understand whether the business generates stable and growing profits, how effectively the company controls its expenses, and whether it is capable of generating income in the future. Additionally, this analysis shows how the company copes with crises and economic cycles, and allows assessing the potential for stock price growth and dividend payments.

Features
  • The income statement may include both recurring and one-time items (for example, profit from the sale of assets). It is necessary to separate core metrics from one-off events for accurate analysis.
  • Companies often publish interim reports (e.g., quarterly), which allows for more timely tracking of trends.
  • A combined analysis of the income statement with the balance sheet and cash flow statement provides a comprehensive view of the company’s financial health.

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