Prothena Corp Public annual operating cash flow
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2025
Prothena Corp Public Operating Cash Flow Growth & History (PRTA)
Prothena Corp Public's operating cash flow was −$163.6M for fiscal 2025.
View full Prothena Corp Public company overviewProthena Corp Public annual operating cash flow history
| Fiscal year | Period ended | Operating cash flow | Change | Growth |
|---|---|---|---|---|
| 2025 | 2025-12-31 | −$163.6M | −$13.5M | — |
| 2024 | 2024-12-31 | −$150.1M | −$16.1M | — |
| 2023 | 2023-12-31 | −$133.9M | −$25.1M | — |
| 2022 | 2022-12-31 | −$108.8M | −$201.4M | — |
| 2021 | 2021-12-31 | $92.6M | $173.0M | — |
| 2020 | 2020-12-31 | −$80.4M | −$27.4M | — |
| 2019 | 2019-12-31 | −$53.0M | −$24.7M | — |
| 2018 | 2018-12-31 | −$28.3M | $102.9M | — |
| 2017 | 2017-12-31 | −$131.2M | −$14.9M | — |
| 2016 | 2016-12-31 | −$116.3M | −$57.6M | — |
| 2015 | 2015-12-31 | −$58.6M | −$57.9M | — |
| 2014 | 2014-12-31 | −$683,000 | $31.4M | — |
| 2013 | 2013-12-31 | −$32.1M | $10.0M | — |
| 2012 | 2012-12-31 | −$42.1M | −$22.4M | — |
| 2011 | 2011-12-31 | −$19.7M | — | — |
Prothena Corp Public quarterly operating cash flow
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Q2.12
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Q4.12
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Q1.14
Q2.14
Q3.14
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Q1.17
Q2.17
Q3.17
Q4.17
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Q3.18
Q4.18
Q1.19
Q2.19
Q3.19
Q4.19
Q1.20
Q2.20
Q3.20
Q4.20
Q1.21
Q2.21
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Q4.21
Q1.22
Q2.22
Q3.22
Q4.22
Q1.23
Q2.23
Q3.23
Q4.23
Q1.24
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Q3.24
Q4.24
Q1.25
Q2.25
Q3.25
Q4.25
Q1.26
Q2.26
| Fiscal quarter | Period ended | Operating cash flow | Change | YoY change |
|---|---|---|---|---|
| Q2 2026 | 2026-06-30 | −$25.0M | $21.3M | — |
| Q1 2026 | 2026-03-31 | $28.9M | $82.2M | — |
| Q4 2025 | 2025-12-31 | −$23.3M | $24.5M | — |
| Q3 2025 | 2025-09-30 | −$40.6M | $4.6M | — |
| Q2 2025 | 2025-06-30 | −$46.3M | −$62.3M | — |
| Q1 2025 | 2025-03-31 | −$53.4M | $19.7M | — |
| Q4 2024 | 2024-12-31 | −$47.8M | $3.3M | — |
| Q3 2024 | 2024-09-30 | −$45.2M | −$54.7M | — |
| Q2 2024 | 2024-06-30 | $16.0M | $60.9M | — |
| Q1 2024 | 2024-03-31 | −$73.1M | −$25.6M | — |
| Q4 2023 | 2023-12-31 | −$51.0M | −$46.1M | — |
| Q3 2023 | 2023-09-30 | $9.5M | $40.7M | — |
| Q2 2023 | 2023-06-30 | −$44.9M | −$9.7M | — |
| Q1 2023 | 2023-03-31 | −$47.5M | −$10.0M | — |
| Q4 2022 | 2022-12-31 | −$5.0M | $17.5M | — |
| Q3 2022 | 2022-09-30 | −$31.2M | −$143.3M | — |
| Q2 2022 | 2022-06-30 | −$35.3M | −$71.9M | — |
| Q1 2022 | 2022-03-31 | −$37.4M | −$3.7M | — |
| Q4 2021 | 2021-12-31 | −$22.5M | −$3.4M | — |
| Q3 2021 | 2021-09-30 | $112.1M | $131.5M | — |
| Q2 2021 | 2021-06-30 | $36.6M | $55.3M | — |
| Q1 2021 | 2021-03-31 | −$33.7M | −$10.5M | — |
| Q4 2020 | 2020-12-31 | −$19.1M | −$4.6M | — |
| Q3 2020 | 2020-09-30 | −$19.4M | −$10.5M | — |
| Q2 2020 | 2020-06-30 | −$18.7M | −$6.6M | — |
| Q1 2020 | 2020-03-31 | −$23.2M | −$5.7M | — |
| Q4 2019 | 2019-12-31 | −$14.5M | $6.8M | — |
| Q3 2019 | 2019-09-30 | −$8.9M | $24.6M | — |
| Q2 2019 | 2019-06-30 | −$12.1M | −$70.2M | — |
| Q1 2019 | 2019-03-31 | −$17.4M | $14.1M | — |
| Q4 2018 | 2018-12-31 | −$21.3M | $18.3M | — |
| Q3 2018 | 2018-09-30 | −$33.6M | −$15.8M | — |
| Q2 2018 | 2018-06-30 | $58.1M | $94.2M | — |
| Q1 2018 | 2018-03-31 | −$31.6M | $6.3M | — |
| Q4 2017 | 2017-12-31 | −$39.5M | −$5.7M | — |
| Q3 2017 | 2017-09-30 | −$17.7M | $12.3M | — |
| Q2 2017 | 2017-06-30 | −$36.1M | −$8.8M | — |
| Q1 2017 | 2017-03-31 | −$37.8M | −$12.8M | — |
| Q4 2016 | 2016-12-31 | −$33.8M | −$18.0M | — |
| Q3 2016 | 2016-09-30 | −$30.1M | −$13.1M | — |
| Q2 2016 | 2016-06-30 | −$27.3M | −$16.2M | — |
| Q1 2016 | 2016-03-31 | −$25.1M | −$10.3M | — |
| Q4 2015 | 2015-12-31 | −$15.8M | −$3.3M | — |
| Q3 2015 | 2015-09-30 | −$16.9M | −$4.6M | — |
| Q2 2015 | 2015-06-30 | −$11.1M | −$17.4M | — |
| Q1 2015 | 2015-03-31 | −$14.7M | −$32.6M | — |
| Q4 2014 | 2014-12-31 | −$12.5M | −$2.7M | — |
| Q3 2014 | 2014-09-30 | −$12.3M | −$2.0M | — |
| Q2 2014 | 2014-06-30 | $6.2M | $13.1M | — |
| Q1 2014 | 2014-03-31 | $17.9M | $23.0M | — |
| Q4 2013 | 2013-12-31 | −$9.8M | $5.8M | — |
| Q3 2013 | 2013-09-30 | −$10.3M | −$2.9M | — |
| Q2 2013 | 2013-06-30 | −$6.9M | $3.5M | — |
| Q1 2013 | 2013-03-31 | −$5.1M | $3.5M | — |
| Q4 2012 | 2012-12-31 | −$15.6M | — | — |
| Q3 2012 | 2012-09-30 | −$7.4M | — | — |
| Q2 2012 | 2012-06-30 | −$10.4M | — | — |
| Q1 2012 | 2012-03-31 | −$8.6M | — | — |
Prothena Corp Public operating cash flow trends
Over the last five fiscal years, Prothena Corp Public's operating cash flow decreased from −$80.4M to −$163.6M, a change of −$83.2M. The latest reported quarter, Q2 2026, shows −$25.0M.
About the metric
What operating cash flow means
Operating cash flow is the cash generated or used by a company’s core operations. It incorporates working-capital movements and other operating cash items, and it is the starting point for calculating free cash flow.
Calculation and source
SEC-reported operating cash flow
TickerStat standardizes net cash provided by or used in operating activities reported in company SEC filings. It is historical filing data before capital expenditures, financing activities, and investing activities. Fiscal periods can differ from calendar years, so exact period-end dates are included.
Review Prothena Corp Public source filings ↗