PROTHENA CORPORATION PUBLIC LIMITED COMPANY Operating Cash Flow
PROTHENA CORPORATION PUBLIC LIMITED COMPANY (PRTA) reported Operating Cash Flow of $3.83 million for the 6-month period ending 2026-06-30, per its 10-Q filed 2026-08-06.
Financial Statements › Cash Flow › Operating Activities
us-gaap:NetCashProvidedByUsedInOperatingActivities · last filed 2026-08-06
- PROTHENA CORPORATION PUBLIC LIMITED COMPANY net cash provided by (used in) operating activities for the quarter ending 2026-06-30 was -$25.05M.
- PROTHENA CORPORATION PUBLIC LIMITED COMPANY net cash provided by (used in) operating activities for the quarter ending 2026-03-31 was $28.88M.
- PROTHENA CORPORATION PUBLIC LIMITED COMPANY net cash provided by (used in) operating activities for the quarter ending 2025-12-31 was -$23.31M.
- PROTHENA CORPORATION PUBLIC LIMITED COMPANY net cash provided by (used in) operating activities for the quarter ending 2025-09-30 was -$40.56M.
- PROTHENA CORPORATION PUBLIC LIMITED COMPANY net cash provided by (used in) operating activities for fiscal 2025 was -$163.58M.
- PROTHENA CORPORATION PUBLIC LIMITED COMPANY net cash provided by (used in) operating activities for fiscal 2024 was -$150.05M.
- PROTHENA CORPORATION PUBLIC LIMITED COMPANY net cash provided by (used in) operating activities for fiscal 2023 was -$133.91M.
- PROTHENA CORPORATION PUBLIC LIMITED COMPANY net cash provided by (used in) operating activities for fiscal 2022 was -$108.82M, a 217.51% decline from fiscal 2021.
| Period end | Net Cash Provided by (Used in) Operating Activities 3 month | Net Cash Provided by (Used in) Operating Activities 3 month as first filed | Net Cash Provided by (Used in) Operating Activities 6 month | Net Cash Provided by (Used in) Operating Activities 6 month as first filed | Net Cash Provided by (Used in) Operating Activities 9 month | Net Cash Provided by (Used in) Operating Activities 9 month as first filed | Net Cash Provided by (Used in) Operating Activities 12 month | Net Cash Provided by (Used in) Operating Activities 12 month as first filed |
|---|---|---|---|---|---|---|---|---|
| 2026-06-30 | -$25.05M derived: 10-Q 6 month − 10-Q 3 month · filed 2026-08-06 | $3.83M 10-Q · filed 2026-08-06 | -$19.48M derived: sum of 3 quarters · filed 2026-08-06 | -$60.05M derived: sum of 4 quarters · filed 2026-08-06 | ||||
| 2026-03-31 | $28.88M 10-Q · filed 2026-05-07 | $5.57M derived: sum of 2 quarters · filed 2026-05-07 | -$35.00M derived: sum of 3 quarters · filed 2026-05-07 | -$81.34M derived: sum of 4 quarters · filed 2026-08-06 | ||||
| 2025-12-31 | -$23.31M derived: 10-K 12 month − 10-Q 9 month · filed 2026-02-27 | -$63.88M derived: sum of 2 quarters · filed 2026-02-27 | -$110.22M derived: sum of 3 quarters · filed 2026-08-06 | -$163.58M 10-K · filed 2026-02-27 | ||||
| 2025-09-30 | -$40.56M derived: 10-Q 9 month − 10-Q 6 month · filed 2025-11-06 | -$86.91M derived: sum of 2 quarters · filed 2026-08-06 | -$140.27M 10-Q · filed 2025-11-06 | -$188.04M derived: sum of 4 quarters · filed 2026-08-06 | ||||
| 2025-06-30 | -$46.34M derived: 10-Q 6 month − 10-Q 3 month · filed 2026-08-06 | -$99.70M 10-Q · filed 2026-08-06 | -$147.47M derived: sum of 3 quarters · filed 2026-08-06 | -$192.66M derived: sum of 4 quarters · filed 2026-08-06 | ||||
| 2025-03-31 | -$53.36M 10-Q · filed 2026-05-07 | -$101.14M derived: sum of 2 quarters · filed 2026-05-07 | -$146.32M derived: sum of 3 quarters · filed 2026-05-07 | -$130.36M derived: sum of 4 quarters · filed 2026-05-07 | ||||
| 2024-12-31 | -$47.77M derived: 10-K 12 month − 10-Q 9 month · filed 2026-02-27 | -$92.96M derived: sum of 2 quarters · filed 2026-02-27 | -$77.00M derived: sum of 3 quarters · filed 2026-02-27 | -$150.05M 10-K · filed 2026-02-27 | ||||
| 2024-09-30 | -$45.19M derived: 10-Q 9 month − 10-Q 6 month · filed 2025-11-06 | -$29.23M derived: sum of 2 quarters · filed 2025-11-06 | -$102.28M 10-Q · filed 2025-11-06 | -$153.32M derived: sum of 4 quarters · filed 2026-02-27 | ||||
| 2024-06-30 | $15.96M derived: 10-Q 6 month − 10-Q 3 month · filed 2025-08-04 | -$57.09M 10-Q · filed 2025-08-04 | -$108.13M derived: sum of 3 quarters · filed 2026-02-27 | -$98.61M derived: sum of 4 quarters · filed 2026-02-27 | ||||
| 2024-03-31 | -$73.05M 10-Q · filed 2025-05-08 | -$124.09M derived: sum of 2 quarters · filed 2026-02-27 | -$114.57M derived: sum of 3 quarters · filed 2026-02-27 | -$159.50M derived: sum of 4 quarters · filed 2026-02-27 | ||||
| 2023-12-31 | -$51.04M derived: 10-K 12 month − 10-Q 9 month · filed 2026-02-27 | -$41.52M derived: sum of 2 quarters · filed 2026-02-27 | -$86.45M derived: sum of 3 quarters · filed 2026-02-27 | -$133.91M 10-K · filed 2026-02-27 | ||||
| 2023-09-30 | $9.52M derived: 10-Q 9 month − 10-Q 6 month · filed 2024-11-12 | -$35.41M derived: sum of 2 quarters · filed 2024-11-12 | -$82.87M 10-Q · filed 2024-11-12 | -$87.84M derived: sum of 4 quarters · filed 2025-02-27 | ||||
| 2023-06-30 | -$44.93M derived: 10-Q 6 month − 10-Q 3 month · filed 2024-08-08 | -$92.39M 10-Q · filed 2024-08-08 | -$97.36M derived: sum of 3 quarters · filed 2025-02-27 | -$128.53M derived: sum of 4 quarters · filed 2025-02-27 | ||||
| 2023-03-31 | -$47.46M 10-Q · filed 2024-05-08 | -$52.43M derived: sum of 2 quarters · filed 2025-02-27 | -$83.60M derived: sum of 3 quarters · filed 2025-02-27 | -$118.86M derived: sum of 4 quarters · filed 2025-02-27 | ||||
| 2022-12-31 | -$4.98M derived: 10-K 12 month − 10-Q 9 month · filed 2025-02-27 | -$36.14M derived: sum of 2 quarters · filed 2025-02-27 | -$71.41M derived: sum of 3 quarters · filed 2025-02-27 | -$108.82M 10-K · filed 2025-02-27 | ||||
| 2022-09-30 | -$31.17M derived: 10-Q 9 month − 10-Q 6 month · filed 2023-11-02 | -$66.43M derived: sum of 2 quarters · filed 2023-11-02 | -$103.84M 10-Q · filed 2023-11-02 | -$126.30M derived: sum of 4 quarters · filed 2024-02-22 | ||||
| 2022-06-30 | -$35.26M derived: 10-Q 6 month − 10-Q 3 month · filed 2023-08-03 | -$72.68M 10-Q · filed 2023-08-03 | -$95.14M derived: sum of 3 quarters · filed 2024-02-22 | $16.97M derived: sum of 4 quarters · filed 2024-02-22 | ||||
| 2022-03-31 | -$37.41M 10-Q · filed 2023-05-04 | -$59.87M derived: sum of 2 quarters · filed 2024-02-22 | $52.24M derived: sum of 3 quarters · filed 2024-02-22 | $88.86M derived: sum of 4 quarters · filed 2024-02-22 | ||||
| 2021-12-31 | -$22.46M derived: 10-K 12 month − 10-Q 9 month · filed 2024-02-22 | $89.65M derived: sum of 2 quarters · filed 2024-02-22 | $126.27M derived: sum of 3 quarters · filed 2024-02-22 | $92.61M 10-K · filed 2024-02-22 | ||||
| 2021-09-30 | $112.11M derived: 10-Q 9 month − 10-Q 6 month · filed 2022-11-03 | $148.73M derived: sum of 2 quarters · filed 2022-11-03 | $115.06M 10-Q · filed 2022-11-03 | $95.97M derived: sum of 4 quarters · filed 2023-02-28 | ||||
| 2021-06-30 | $36.62M derived: 10-Q 6 month − 10-Q 3 month · filed 2022-08-08 | $2.95M 10-Q · filed 2022-08-08 | -$16.14M derived: sum of 3 quarters · filed 2023-02-28 | -$35.55M derived: sum of 4 quarters · filed 2023-02-28 | ||||
| 2021-03-31 | -$33.67M 10-Q · filed 2022-05-05 | -$52.76M derived: sum of 2 quarters · filed 2023-02-28 | -$72.16M derived: sum of 3 quarters · filed 2023-02-28 | -$90.86M derived: sum of 4 quarters · filed 2023-02-28 | ||||
| 2020-12-31 | -$19.09M derived: 10-K 12 month − 10-Q 9 month · filed 2023-02-28 | -$38.50M derived: sum of 2 quarters · filed 2023-02-28 | -$57.20M derived: sum of 3 quarters · filed 2023-02-28 | -$80.36M 10-K · filed 2023-02-28 | ||||
| 2020-09-30 | -$19.40M derived: 10-Q 9 month − 10-Q 6 month · filed 2021-11-04 | -$38.10M derived: sum of 2 quarters · filed 2021-11-04 | -$61.27M 10-Q · filed 2021-11-04 | -$75.76M derived: sum of 4 quarters · filed 2022-02-25 | ||||
| 2020-06-30 | -$18.70M derived: 10-Q 6 month − 10-Q 3 month · filed 2021-08-05 | -$41.86M 10-Q · filed 2021-08-05 | -$56.35M derived: sum of 3 quarters · filed 2022-02-25 | -$65.30M derived: sum of 4 quarters · filed 2022-02-25 | ||||
| 2020-03-31 | -$23.17M 10-Q · filed 2021-05-11 | -$37.66M derived: sum of 2 quarters · filed 2022-02-25 | -$46.60M derived: sum of 3 quarters · filed 2022-02-25 | -$58.70M derived: sum of 4 quarters · filed 2022-02-25 | ||||
| 2019-12-31 | -$14.49M derived: 10-K 12 month − 10-Q 9 month · filed 2022-02-25 | -$23.43M derived: sum of 2 quarters · filed 2022-02-25 | -$35.53M derived: sum of 3 quarters · filed 2022-02-25 | -$52.97M 10-K · filed 2022-02-25 | ||||
| 2019-09-30 | -$8.94M derived: 10-Q 9 month − 10-Q 6 month · filed 2020-11-04 | -$21.05M derived: sum of 2 quarters · filed 2020-11-04 | -$38.48M 10-Q · filed 2020-11-04 | -$59.73M derived: sum of 4 quarters · filed 2021-02-26 | ||||
| 2019-06-30 | -$12.10M derived: 10-Q 6 month − 10-Q 3 month · filed 2020-08-06 | -$29.54M 10-Q · filed 2020-08-06 | -$50.79M derived: sum of 3 quarters · filed 2021-02-26 | -$84.36M derived: sum of 4 quarters · filed 2021-02-26 | ||||
| 2019-03-31 | -$17.43M 10-Q · filed 2020-05-06 | -$38.69M derived: sum of 2 quarters · filed 2021-02-26 | -$72.26M derived: sum of 3 quarters · filed 2021-02-26 | -$14.13M derived: sum of 4 quarters · filed 2021-02-26 | ||||
| 2018-12-31 | -$21.25M derived: 10-K 12 month − 10-Q 9 month · filed 2021-02-26 | -$54.83M derived: sum of 2 quarters · filed 2021-02-26 | $3.31M derived: sum of 3 quarters · filed 2021-02-26 | -$28.28M 10-K · filed 2021-02-26 | ||||
| 2018-09-30 | -$33.57M derived: 10-Q 9 month − 10-Q 6 month · filed 2019-11-05 | $24.56M derived: sum of 2 quarters · filed 2019-11-05 | -$7.02M 10-Q · filed 2019-11-05 | -$46.55M derived: sum of 4 quarters · filed 2020-03-03 | ||||
| 2018-06-30 | $58.13M derived: 10-Q 6 month − 10-Q 3 month · filed 2019-08-06 | $26.55M 10-Q · filed 2019-08-06 | -$12.97M derived: sum of 3 quarters · filed 2020-03-03 | -$30.71M derived: sum of 4 quarters · filed 2020-03-03 | ||||
| 2018-03-31 | -$31.58M 10-Q · filed 2019-05-07 | -$71.11M derived: sum of 2 quarters · filed 2020-03-03 | -$88.85M derived: sum of 3 quarters · filed 2020-03-03 | -$124.92M derived: sum of 4 quarters · filed 2020-03-03 | ||||
| 2017-12-31 | -$39.52M derived: 10-K 12 month − 10-Q 9 month · filed 2020-03-03 | -$57.26M derived: sum of 2 quarters · filed 2020-03-03 | -$93.34M derived: sum of 3 quarters · filed 2020-03-03 | -$131.18M 10-K · filed 2020-03-03 | ||||
| 2017-09-30 | -$17.74M derived: 10-Q 9 month − 10-Q 6 month · filed 2018-11-06 | -$53.82M derived: sum of 2 quarters · filed 2018-11-06 | -$91.66M 10-Q · filed 2018-11-06 | -$125.47M derived: sum of 4 quarters · filed 2019-03-15 | ||||
| 2017-06-30 | -$36.08M derived: 10-Q 6 month − 10-Q 3 month · filed 2018-08-07 | -$73.92M 10-Q · filed 2018-08-07 | -$107.73M derived: sum of 3 quarters · filed 2019-03-15 | -$137.79M derived: sum of 4 quarters · filed 2019-03-15 | ||||
| 2017-03-31 | -$37.84M 10-Q · filed 2018-05-09 | -$71.65M derived: sum of 2 quarters · filed 2019-03-15 | -$101.71M derived: sum of 3 quarters · filed 2019-03-15 | -$129.03M derived: sum of 4 quarters · filed 2019-03-15 | ||||
| 2016-12-31 | -$33.81M derived: 10-K 12 month − 10-Q 9 month · filed 2019-03-15 | -$63.87M derived: sum of 2 quarters · filed 2019-03-15 | -$91.19M derived: sum of 3 quarters · filed 2019-03-15 | -$116.25M 10-K · filed 2019-03-15 | -$117.27M 10-K · filed 2017-02-27 | |||
| 2016-09-30 | -$30.06M derived: 10-Q 9 month − 10-Q 6 month · filed 2017-11-07 | -$57.39M derived: sum of 2 quarters · filed 2017-11-07 | -$82.44M 10-Q · filed 2017-11-07 | -$83.27M 10-Q · filed 2016-11-02 | -$98.27M derived: sum of 4 quarters · filed 2018-02-26 | |||
| 2016-06-30 | -$27.33M derived: 10-Q 6 month − 10-Q 3 month · filed 2017-08-09 | -$52.38M 10-Q · filed 2017-08-09 | -$52.68M 10-Q · filed 2016-08-02 | -$68.21M derived: sum of 3 quarters · filed 2018-02-26 | -$85.12M derived: sum of 4 quarters · filed 2018-02-26 | |||
| 2016-03-31 | -$25.06M 10-Q · filed 2017-05-09 | -$25.15M 10-Q · filed 2016-05-04 | -$40.88M derived: sum of 2 quarters · filed 2018-02-26 | -$57.80M derived: sum of 3 quarters · filed 2018-02-26 | -$68.94M derived: sum of 4 quarters · filed 2018-02-26 | |||
| 2015-12-31 | -$15.83M derived: 10-K 12 month − 10-Q 9 month · filed 2018-02-26 | -$32.74M derived: sum of 2 quarters · filed 2018-02-26 | -$43.88M derived: sum of 3 quarters · filed 2018-02-26 | -$58.60M 10-K · filed 2018-02-26 | -$62.45M 10-K · filed 2016-02-25 | |||
| 2015-09-30 | -$16.91M derived: 10-Q 9 month − 10-Q 6 month · filed 2016-11-02 | -$28.05M derived: sum of 2 quarters · filed 2016-11-02 | -$42.77M 10-Q · filed 2016-11-02 | -$55.30M derived: sum of 4 quarters · filed 2017-02-27 | ||||
| 2015-06-30 | -$11.14M derived: 10-Q 6 month − 10-Q 3 month · filed 2016-08-02 | -$25.86M 10-Q · filed 2016-08-02 | -$38.38M derived: sum of 3 quarters · filed 2017-02-27 | -$50.65M derived: sum of 4 quarters · filed 2017-02-27 | ||||
| 2015-03-31 | -$14.72M 10-Q · filed 2016-05-04 | -$27.24M derived: sum of 2 quarters · filed 2017-02-27 | -$39.51M derived: sum of 3 quarters · filed 2017-02-27 | -$33.30M derived: sum of 4 quarters · filed 2017-02-27 | ||||
| 2014-12-31 | -$12.52M derived: 10-K 12 month − 10-Q 9 month · filed 2017-02-27 | -$24.79M derived: sum of 2 quarters · filed 2017-02-27 | -$18.58M derived: sum of 3 quarters · filed 2017-02-27 | -$683.00K 10-K · filed 2017-02-27 | ||||
| 2014-09-30 | -$12.27M derived: 10-Q 9 month − 10-Q 6 month · filed 2015-11-02 | -$6.05M derived: sum of 2 quarters · filed 2015-11-02 | $11.84M 10-Q · filed 2015-11-02 | $2.00M derived: sum of 4 quarters · filed 2016-02-25 | ||||
| 2014-06-30 | $6.21M derived: 10-Q 6 month − 10-Q 3 month · filed 2015-08-05 | $24.11M 10-Q · filed 2015-08-05 | $14.27M derived: sum of 3 quarters · filed 2016-02-25 | $3.96M derived: sum of 4 quarters · filed 2016-02-25 | ||||
| 2014-03-31 | $17.89M 10-Q · filed 2015-05-06 | $8.06M derived: sum of 2 quarters · filed 2016-02-25 | -$2.25M derived: sum of 3 quarters · filed 2016-02-25 | -$9.10M derived: sum of 4 quarters · filed 2016-02-25 | ||||
| 2013-12-31 | -$9.84M derived: 10-K 12 month − 10-Q 9 month · filed 2016-02-25 | -$20.14M derived: sum of 2 quarters · filed 2016-02-25 | -$27.00M derived: sum of 3 quarters · filed 2016-02-25 | -$32.10M 10-K · filed 2016-02-25 | ||||
| 2013-09-30 | -$10.30M derived: 10-Q 9 month − 10-Q 6 month · filed 2014-11-04 | -$17.16M derived: sum of 2 quarters · filed 2014-11-04 | -$22.26M 10-Q · filed 2014-11-04 | -$37.90M derived: sum of 4 quarters · filed 2015-03-13 | ||||
| 2013-06-30 | -$6.86M derived: 10-Q 6 month − 10-Q 3 month · filed 2014-08-05 | -$11.96M 10-Q · filed 2014-08-05 | -$27.59M derived: sum of 3 quarters · filed 2015-03-13 | -$35.04M derived: sum of 4 quarters · filed 2015-03-13 | ||||
| 2013-03-31 | -$5.10M 10-Q · filed 2014-05-05 | -$20.74M derived: sum of 2 quarters · filed 2015-03-13 | -$28.19M derived: sum of 3 quarters · filed 2015-03-13 | -$38.55M derived: sum of 4 quarters · filed 2015-03-13 | ||||
| 2012-12-31 | -$15.63M derived: 10-K 12 month − 10-Q 9 month · filed 2015-03-13 | -$23.08M derived: sum of 2 quarters · filed 2015-03-13 | -$33.45M derived: sum of 3 quarters · filed 2015-03-13 | -$42.07M 10-K · filed 2015-03-13 | ||||
| 2012-09-30 | -$7.45M derived: 10-Q 9 month − 10-Q 6 month · filed 2013-11-12 | -$17.81M derived: sum of 2 quarters · filed 2013-11-12 | -$26.44M 10-Q · filed 2013-11-12 | |||||
| 2012-06-30 | -$10.36M derived: 10-Q 6 month − 10-Q 3 month · filed 2013-08-13 | -$18.99M 10-Q · filed 2013-08-13 | ||||||
| 2012-03-31 | -$8.62M 10-Q · filed 2013-05-15 | |||||||
| 2011-12-31 | -$19.70M 10-K · filed 2014-03-07 |
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