1 Item1A. Risk Factors 21 Item 1B. Unresolved Staff Comments 56 Item 1C. Cybersecurity 56 Item2. Properties 56 Item3. Legal Proceedings 57 Item 4. Mine Safety Disclosures 57 PART II. 58 Item5. Market for Registrant's Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities 58 Item6. [Reserved] 61 Item7. Managements Discussion and Analysis of Financial Condition and Results of Operations 61 Item7A. Quantitative and Qualitative Disclosures About Market Risk 68 Item8. Fi...
Q2 FY2026 — expected 2026-08-16
| Filed | Period | Accession | Source | Full Text |
|---|---|---|---|---|
| 2026-02-27 | 2025-12-31 | 0001559053-26-000008 | EDGAR | 75K words |
| 2025-02-27 | 2024-12-31 | 0001559053-25-000009 | EDGAR | — |
| 2024-02-22 | 2023-12-31 | 0001559053-24-000008 | EDGAR | — |
| 2023-02-28 | 2022-12-31 | 0001559053-23-000005 | EDGAR | — |
| 2022-02-25 | 2021-12-31 | 0001559053-22-000008 | EDGAR | — |
| 2021-02-26 | 2020-12-31 | 0001559053-21-000008 | EDGAR | — |
| 2020-03-03 | 2019-12-31 | 0001559053-20-000005 | EDGAR | — |
| 2019-03-15 | 2018-12-31 | 0001559053-19-000007 | EDGAR | — |
| 2018-02-26 | 2017-12-31 | 0001559053-18-000008 | EDGAR | — |
| 2017-02-27 | 2016-12-31 | 0001559053-17-000005 | EDGAR | — |
| Filed | Period | Accession | Source | Full Text |
|---|---|---|---|---|
| 2025-11-06 | 2025-09-30 | 0001559053-25-000044 | EDGAR | 53K words |
| 2025-08-04 | 2025-06-30 | 0001559053-25-000031 | EDGAR | — |
| 2025-05-08 | 2025-03-31 | 0001559053-25-000023 | EDGAR | — |
| 2024-11-12 | 2024-09-30 | 0001559053-24-000032 | EDGAR | — |
| 2024-08-08 | 2024-06-30 | 0001559053-24-000025 | EDGAR | — |
| 2024-05-08 | 2024-03-31 | 0001559053-24-000014 | EDGAR | — |
| 2023-11-02 | 2023-09-30 | 0001559053-23-000033 | EDGAR | — |
| 2023-08-03 | 2023-06-30 | 0001559053-23-000026 | EDGAR | — |
| 2023-05-04 | 2023-03-31 | 0001559053-23-000016 | EDGAR | — |
| 2022-11-03 | 2022-09-30 | 0001559053-22-000045 | EDGAR | — |
| 2022-08-08 | 2022-06-30 | 0001559053-22-000032 | EDGAR | — |
| 2022-05-05 | 2022-03-31 | 0001559053-22-000023 | EDGAR | — |
| Filed | Accession | Source | Full Text |
|---|---|---|---|
| 2026-02-27 | 0001559053-26-000009 | EDGAR | 1K words |
| 2026-02-19 | 0001559053-26-000003 | EDGAR | — |
| 2025-12-12 | 0001559053-25-000049 | EDGAR | — |
| 2025-11-19 | 0001559053-25-000047 | EDGAR | — |
| 2025-11-06 | 0001559053-25-000042 | EDGAR | — |
| 2025-08-27 | 0001193125-25-189765 | EDGAR | — |
| 2025-08-06 | 0001193125-25-174061 | EDGAR | — |
| 2025-08-04 | 0001559053-25-000029 | EDGAR | — |
| 2025-07-30 | 0001193125-25-169367 | EDGAR | — |
| 2025-06-18 | 0001193125-25-142725 | EDGAR | — |
245 total filings indexed. 213 additional filings (S-1, DEF 14A, etc.) View all (JSON) · SEC EDGAR
| CIK | 0001559053 |
| Ticker | PRTA |
| Exchange | Nasdaq |
| SIC | 2834: Pharmaceutical Preparations |
| Incorporated | L2 |
| Website | https://www.prothena.com |
| Listed | 2012-12-18 |
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