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Buy Day today: Neutral (56) Mixed market breadth · no major macro event
PRTA

Prothena Corporation plc

Healthcare · Biotechnology

8.30$ -0.4% vs. previous close Closing price · As of: Sep 25, 2026

Statements

Cash Flow

All figures as a percentage of revenue in the same period.

Tick rows to compare them in a chart (up to 4)

Cash Flow PRTA
Line item 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025
-1.3% -3,886.4% -11,115.5% -476.7% -2,960.8% -6,507.2% -9,421.1% 46.2% -201.9% -146.6% -111.0% -1,689.2%
1.5% 50.2% 230.0% 11.1% 336.8% 837.8% 177.5% 0.6% 1.4% 1.0% 0.7% 9.2%
11.0% 648.0% 2,362.9% 97.3% 2,828.3% 2,897.4% 2,580.8% 12.3% 58.1% 44.8% 34.0% 388.7%
8.5% 365.7% 1,958.5% 81.6% -105.2% -153.3% -197.9% 2.3% 37.5% – – –
2.7% 714.0% 1,790.2% -26.0% 9,890.3% -546.6% 407.9% -5.2% -34.9% -22.5% -50.3% -43.1%
1.0% 86.0% 1,577.6% 13.2% 185.1% 68.2% 23.0% 0.3% 0.9% 3.1% 0.2% 1.4%
-1.0% -86.0% -1,577.6% -12.8% -181.0% -67.2% -23.0% -0.3% -0.9% -3.0% -0.2% -1.4%
0.0% 0.0% 0.0% 0.0% – – – – – – – –
231.7% 8,524.5% 13,203.1% 611.1% 4,653.8% 28.0% 25.2% 46.7% – – -0.3% -1.4%
-0.3% -10.5% -16.0% -10.0% -460.7% – – – – – – –
232.2% 8,764.4% 14,626.2% 601.0% 4,193.1% 28.0% 25.2% 94.9% 447.9% 49.4% 1.1% -1.4%
229.9% 4,792.0% 1,933.0% 111.5% 1,051.2% -6,546.4% -9,418.9% 140.8% 245.2% -100.2% -110.1% -1,692.0%
-2.4% -3,972.4% -12,693.2% -489.9% -3,146.0% -6,575.4% -9,444.1% 45.9% -202.7% -149.6% -111.2% -1,690.6%

Data as of: September 25, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)

Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.

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