Prothena Corporation plc
Statements
Cash Flow
Prothena Corporation plc (PRTA) by the numbers: income statement, balance sheet and cash flow, by year or by quarter. In the most recent period (Q2 26), "Operating Cash Flow" came in at -25 million USD. Tick rows to compare them in a chart.
All figures in millions of USD.
Tick rows to compare them in a chart (up to 4)
| Line item | Q3 16 | Q4 16 | Q1 17 | Q2 17 | Q3 17 | Q4 17 | Q1 18 | Q2 18 | Q3 18 | Q4 18 | Q1 19 | Q2 19 | Q3 19 | Q4 19 | Q1 20 | Q2 20 | Q3 20 | Q4 20 | Q1 21 | Q2 21 | Q3 21 | Q4 21 | Q1 22 | Q2 22 | Q3 22 | Q4 22 | Q1 23 | Q2 23 | Q3 23 | Q4 23 | Q1 24 | Q2 24 | Q3 24 | Q4 24 | Q1 25 | Q2 25 | Q3 25 | Q4 25 | Q1 26 | Q2 26 | LTM* |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| -31 | -34 | -38 | -36 | -18 | -40 | -32 | 58 | -34 | -21 | -17 | -12 | -8.9 | -14 | -23 | -19 | -19 | -19 | -34 | 37 | 112 | -22 | -37 | -35 | -31 | -5.0 | -47 | -45 | 9.5 | -51 | -73 | 16 | -45 | -48 | -53 | -46 | -41 | -23 | 29 | -25 | -60 | |
| 0.8 | 0.9 | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 | 0.8 | 1.7 | 1.7 | 1.7 | 1.7 | 1.7 | 1.7 | 1.8 | 1.7 | 1.7 | 1.7 | 1.7 | 1.7 | 0.2 | 0.2 | 4.6 | -4.3 | 0.2 | 0.2 | 0.2 | -4.9 | 0.2 | 0.2 | -0.4 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.8 | |
| 11 | 5.2 | 5.6 | 6.7 | 7.1 | 7.4 | 6.9 | 8.8 | 7.0 | 4.2 | 6.2 | 6.3 | 5.8 | 5.3 | 5.5 | 5.7 | 5.6 | 5.2 | 6.2 | 5.5 | 6.1 | 6.9 | 7.7 | 8.3 | 8.0 | 7.4 | 8.8 | 10 | 11 | 11 | 12 | 12 | 11 | 11 | 11 | 12 | 7.2 | 7.1 | 6.9 | 7.9 | 29 | |
| 8.6 | 4.9 | 4.2 | 6.1 | 6.5 | 5.7 | 7.3 | -8.4 | 2.4 | -2.4 | -0.2 | -0.6 | 0.0 | -0.5 | -0.5 | 11 | 5.1 | -17 | 4.6 | 6.1 | -0.1 | -0.6 | -2.5 | -2.4 | 21 | 4.2 | 5.6 | 5.6 | 7.0 | – | – | – | – | – | – | – | – | – | – | – | – | |
| 3.0 | 8.7 | -8.4 | -26 | 26 | 0.8 | 8.2 | 109 | -20 | -2.4 | -4.3 | -3.7 | 2.9 | 0.5 | -6.4 | 0.7 | 4.3 | 4.8 | -9.4 | 1.1 | -4.8 | 2.7 | -7.9 | -1.6 | 7.9 | -17 | -7.9 | 2.3 | -22 | 6.8 | -11 | -61 | 5.6 | 1.0 | -3.4 | 21 | -12 | -9.8 | -6.5 | -14 | -42 | |
| 8.6 | 7.1 | 2.5 | 0.2 | 0.5 | 0.4 | 0.2 | 0.1 | 0.2 | 1.3 | 0.1 | 0.1 | 0.2 | 0.1 | 0.0 | 0.0 | 0.1 | 0.1 | 0.0 | 0.0 | 0.2 | 0.3 | 0.0 | 0.2 | 0.1 | 0.2 | 0.0 | 0.8 | 0.4 | 1.5 | 0.1 | 0.1 | 0.0 | 0.0 | 0.0 | 0.1 | 0.0 | 0.0 | 0.0 | 0.7 | 0.7 | |
| -8.6 | -3.1 | -2.4 | -0.2 | -0.5 | -0.4 | -0.2 | -0.1 | -0.2 | -1.3 | -0.1 | -0.1 | -0.2 | -0.1 | 0.0 | 0.0 | -0.1 | -0.1 | 0.0 | 0.0 | -0.2 | -0.3 | 0.0 | -0.2 | -0.1 | -0.2 | 0.0 | -0.8 | -0.4 | -1.5 | -0.1 | -0.1 | 0.0 | 0.0 | 0.0 | -0.1 | 0.0 | 0.0 | – | -0.7 | – | |
| 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | |
| 1.4 | 8.1 | 160 | 2.0 | 3.4 | 2.4 | 44 | 0.1 | 0.2 | 44 | 0.0 | 0.2 | 0.2 | 0.0 | 0.2 | – | 0.1 | – | 81 | 6.3 | 4.1 | 1.9 | 1.5 | 0.4 | 4.3 | – | 0.0 | 16 | – | – | -0.1 | -0.1 | -0.1 | -0.1 | 0.0 | -0.1 | 0.0 | -0.2 | -6.9 | -16 | -23 | |
| 2.8 | -0.2 | -0.5 | -0.5 | -0.8 | -2.8 | -1.0 | -1.0 | -1.2 | -1.3 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | |
| 4.8 | 19 | 160 | 1.5 | 2.6 | 1.5 | 43 | -0.9 | -1.0 | -1.3 | 0.0 | 0.2 | 0.0 | 0.0 | 0.2 | 0.1 | 0.1 | 81 | 81 | 20 | 87 | 1.8 | 1.3 | 1.2 | 18 | 221 | 23 | 19 | 2.7 | 0.5 | 0.8 | 0.4 | 0.3 | -0.1 | 0.0 | -0.1 | 0.0 | 0.0 | -6.9 | -16 | -23 | |
| -34 | -18 | 120 | -35 | -16 | -38 | 11 | 57 | -35 | -24 | -18 | -12 | -9.2 | -15 | -23 | -19 | -19 | -19 | 48 | 57 | 199 | -21 | -36 | -34 | -13 | 216 | -24 | -27 | 12 | -52 | -72 | 16 | -45 | -48 | -53 | -47 | -41 | -23 | 22 | -41 | -83 | |
| -39 | -41 | -40 | -36 | -18 | -40 | -32 | 58 | -34 | -23 | -18 | -12 | -9.2 | -15 | -23 | -19 | -19 | -19 | -34 | 37 | 112 | -23 | -37 | -35 | -31 | -5.1 | -48 | -46 | 9.1 | -53 | -73 | 16 | -45 | -48 | -53 | -46 | -41 | -23 | 29 | -26 | -61 |
LTM = last twelve months (sum of the four most recent quarters).
Showing the most recent 40 periods — older statements are on file for this stock.
Data as of: October 2, 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.