Prothena Corp Public Ltd Co SEC filings PRTA
Prothena Corp Public Ltd Co has 1,006 filings in SEC EDGAR's recent list, going back to Jan 31, 2013. Its latest annual report, Form ARS, was filed on Mar 27, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Nov 5, 2026, covering the quarter ended Sep 30, 2026. The most recent current report (Form 8-K) was filed on Nov 5, 2026 (results of operations). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 8-K |
Current report
Results of operations
|
Nov 5, 2026 | Nov 5, 2026 |
| 8-K |
Current report
Agreement ended
|
Oct 29, 2026 | Oct 28, 2026 |
| 8-K |
Current report
Officer or director change
|
Oct 2, 2026 | Oct 2, 2026 |
| 8-K |
Current report
Results of operations
|
Aug 6, 2026 | Aug 6, 2026 |
| 8-K |
Current report
Shareholder vote results
|
May 15, 2026 | May 14, 2026 |
| 8-K |
Current report
Results of operations
|
May 7, 2026 | May 7, 2026 |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Feb 27, 2026 | Feb 27, 2026 |
| 8-K |
Current report
Results of operations
|
Feb 19, 2026 | Feb 19, 2026 |
| 8-K |
Current report
Officer or director change
|
Dec 12, 2025 | Dec 10, 2025 |
| 8-K |
Current report
Shareholder vote results
|
Nov 19, 2025 | Nov 19, 2025 |
| 8-K |
Current report
Results of operations
|
Nov 6, 2025 | Nov 6, 2025 |
| 8-K |
Current report
Other events
|
Aug 27, 2025 | Aug 27, 2025 |
| 8-K |
Current report
Other events
|
Aug 6, 2025 | Aug 6, 2025 |
| 8-K |
Current report
Results of operations
|
Aug 4, 2025 | Aug 4, 2025 |
| 8-K |
Current report
Officer or director change
|
Jul 30, 2025 | Jul 30, 2025 |
| 8-K |
Current report
Exit or restructuring costs, Officer or director change
|
Jun 18, 2025 | Jun 13, 2025 |
| 8-K |
Current report
Other events
|
Jun 16, 2025 | Jun 15, 2025 |
| 8-K |
Current report
Other events
|
May 23, 2025 | May 23, 2025 |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
May 16, 2025 | May 13, 2025 |
| 8-K |
Current report
Results of operations
|
May 8, 2025 | May 8, 2025 |
| 8-K |
Current report
Results of operations
|
Feb 20, 2025 | Feb 20, 2025 |
| 8-K |
Current report
Officer or director change
|
Dec 30, 2024 | Dec 29, 2024 |
| 8-K |
Current report
Results of operations
|
Nov 12, 2024 | Nov 12, 2024 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Sep 27, 2024 | Sep 23, 2024 |
| 8-K |
Current report
Results of operations
|
Aug 8, 2024 | Aug 8, 2024 |
| 8-K |
Current report
Material agreement, Other events
|
May 28, 2024 | May 24, 2024 |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
May 17, 2024 | May 14, 2024 |
| 8-K |
Current report
Results of operations
|
May 8, 2024 | May 8, 2024 |
| 8-K |
Current report
Officer or director change
|
Feb 21, 2024 | Feb 21, 2024 |
| 8-K |
Current report
Results of operations
|
Feb 15, 2024 | Feb 15, 2024 |
| 8-K |
Current report
Results of operations, Other events
|
Jan 8, 2024 | Jan 8, 2024 |
| 8-K |
Current report
Results of operations
|
Nov 2, 2023 | Nov 2, 2023 |
| 8-K |
Current report
Results of operations
|
Aug 3, 2023 | Aug 3, 2023 |
| 8-K |
Current report
Material agreement
|
Jul 10, 2023 | Jul 5, 2023 |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
May 19, 2023 | May 16, 2023 |
| 8-K |
Current report
Officer or director change
|
May 16, 2023 | May 16, 2023 |
| 8-K |
Current report
Results of operations
|
May 4, 2023 | May 4, 2023 |
| 8-K |
Current report
Officer or director change
|
Apr 28, 2023 | Apr 25, 2023 |
| 8-K |
Current report
Regulation FD disclosure
|
Mar 10, 2023 | Mar 10, 2023 |
| 8-K |
Current report
Results of operations
|
Feb 23, 2023 | Feb 23, 2023 |
| 8-K |
Current report
Other events
|
Dec 16, 2022 | Dec 14, 2022 |
| 8-K |
Current report
Other events
|
Nov 21, 2022 | Nov 21, 2022 |
| 8-K |
Current report
Results of operations
|
Nov 3, 2022 | Nov 3, 2022 |
| 8-K |
Current report
Material agreement
|
Oct 31, 2022 | Oct 28, 2022 |
| 8-K |
Current report
Officer or director change
|
Sep 1, 2022 | Aug 30, 2022 |
| 8-K |
Current report
Results of operations
|
Aug 8, 2022 | Aug 8, 2022 |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
May 20, 2022 | May 17, 2022 |
| 8-K |
Current report
Results of operations
|
May 5, 2022 | May 5, 2022 |
| 8-K |
Current report
Other events
|
Apr 26, 2022 | Apr 26, 2022 |
| 8-K |
Current report
Regulation FD disclosure
|
Mar 28, 2022 | Mar 28, 2022 |
| 8-K |
Current report
Regulation FD disclosure
|
Mar 25, 2022 | Mar 25, 2022 |
| 8-K |
Current report
Results of operations
|
Feb 17, 2022 | Feb 17, 2022 |
| 8-K |
Current report
Other events
|
Dec 23, 2021 | Dec 23, 2021 |
| 8-K |
Current report
Results of operations
|
Nov 4, 2021 | Nov 4, 2021 |
| 8-K |
Current report
Officer or director change
|
Oct 1, 2021 | Sep 29, 2021 |
| 8-K |
Current report
Results of operations
|
Aug 5, 2021 | Aug 5, 2021 |
| 8-K |
Current report
Material agreement
|
Aug 3, 2021 | Jul 30, 2021 |
| 8-K |
Current report
Material agreement, Regulation FD disclosure
|
Jul 12, 2021 | Jul 8, 2021 |
| 8-K |
Current report
Other events
|
Jun 24, 2021 | Jun 24, 2021 |
| 8-K |
Current report
Other events
|
May 28, 2021 | May 28, 2021 |
| 8-K |
Current report
Other events
|
May 28, 2021 | May 28, 2021 |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
May 21, 2021 | May 18, 2021 |
| 8-K |
Current report
Officer or director change
|
May 20, 2021 | May 18, 2021 |
| 8-K |
Current report
Results of operations
|
May 11, 2021 | May 11, 2021 |
| 8-K |
Current report
Other events
|
Mar 26, 2021 | Mar 23, 2021 |
| 8-K |
Current report
Results of operations
|
Feb 11, 2021 | Feb 11, 2021 |
| 8-K |
Current report
Other events
|
Feb 1, 2021 | Feb 1, 2021 |
| 8-K |
Current report
Other events
|
Dec 9, 2020 | Dec 9, 2020 |
| 8-K |
Current report
Results of operations
|
Nov 4, 2020 | Nov 4, 2020 |
| 8-K |
Current report
Other events
|
Oct 20, 2020 | Oct 20, 2020 |
| 8-K |
Current report
Results of operations
|
Aug 6, 2020 | Aug 6, 2020 |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
May 22, 2020 | May 19, 2020 |
| 8-K |
Current report
Results of operations
|
May 6, 2020 | May 6, 2020 |
| 8-K |
Current report
Results of operations
|
Feb 12, 2020 | Feb 12, 2020 |
| 8-K |
Current report
Other events
|
Dec 19, 2019 | Dec 19, 2019 |
| 8-K |
Current report
Officer or director change
|
Dec 5, 2019 | Dec 3, 2019 |
| 8-K |
Current report
Results of operations
|
Nov 5, 2019 | Nov 5, 2019 |
| 8-K/A |
Amended current report
Officer or director change
|
Oct 30, 2019 | Oct 29, 2019 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Sep 24, 2019 | Sep 24, 2019 |
| 8-K/A |
Amended current report
Officer or director change
|
Sep 20, 2019 | Sep 18, 2019 |
| 8-K |
Current report
Results of operations
|
Aug 6, 2019 | Aug 6, 2019 |
| 8-K |
Current report
Officer or director change
|
Jul 3, 2019 | Jul 1, 2019 |
| 8-K |
Current report
Shareholder vote results
|
May 24, 2019 | May 21, 2019 |
| 8-K |
Current report
Results of operations
|
May 7, 2019 | May 7, 2019 |
| 8-K |
Current report
Other events
|
Apr 18, 2019 | Apr 18, 2019 |
| 8-K |
Current report
Results of operations
|
Feb 14, 2019 | Feb 14, 2019 |
| 8-K |
Current report
Officer or director change
|
Dec 14, 2018 | Dec 11, 2018 |
| 8-K |
Current report
Results of operations
|
Nov 6, 2018 | Nov 6, 2018 |
| 8-K |
Current report
Material agreement
|
Sep 28, 2018 | Sep 24, 2018 |
| 8-K |
Current report
Results of operations
|
Aug 7, 2018 | Aug 7, 2018 |
| 8-K |
Current report
Agreement ended
|
Jul 26, 2018 | Jul 20, 2018 |
| 8-K |
Current report
Officer or director change
|
Jun 25, 2018 | Jun 21, 2018 |
| 8-K |
Current report
Exit or restructuring costs, Officer or director change
|
May 25, 2018 | May 22, 2018 |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
May 18, 2018 | May 15, 2018 |
| 8-K |
Current report
Results of operations
|
May 8, 2018 | May 8, 2018 |
| 8-K |
Current report
Other events
|
Apr 23, 2018 | Apr 23, 2018 |
| 8-K |
Current report
Material agreement, Unregistered share sale, Regulation FD disclosure
|
Mar 20, 2018 | Mar 20, 2018 |
| 8-K |
Current report
Results of operations
|
Feb 14, 2018 | Feb 14, 2018 |
| 8-K |
Current report
Results of operations
|
Nov 7, 2017 | Nov 7, 2017 |
| 8-K |
Current report
Other events
|
Sep 28, 2017 | Sep 28, 2017 |
| 8-K |
Current report
Results of operations
|
Aug 8, 2017 | Aug 8, 2017 |
| 8-K |
Current report
Officer or director change, Shareholder vote results
|
May 23, 2017 | May 17, 2017 |
| 8-K |
Current report
Results of operations
|
May 9, 2017 | May 9, 2017 |
| 8-K |
Current report
Material agreement
|
Apr 12, 2017 | Apr 5, 2017 |
| 8-K |
Current report
Other events
|
Mar 8, 2017 | Mar 2, 2017 |
| 8-K |
Current report
Results of operations
|
Feb 14, 2017 | Feb 14, 2017 |
| 8-K |
Current report
Officer or director change
|
Nov 28, 2016 | Nov 21, 2016 |
| 8-K |
Current report
Other events
|
Nov 9, 2016 | Nov 9, 2016 |
| 8-K |
Current report
Material agreement
|
Nov 9, 2016 | Nov 9, 2016 |
| 8-K/A |
Amended current report
Officer or director change
|
Nov 4, 2016 | Nov 2, 2016 |
| 8-K |
Current report
Results of operations
|
Nov 1, 2016 | Nov 1, 2016 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Oct 3, 2016 | Sep 30, 2016 |
| 8-K |
Current report
Officer or director change
|
Sep 26, 2016 | Sep 26, 2016 |
| 8-K |
Current report
Officer or director change
|
Sep 6, 2016 | Sep 6, 2016 |
| 8-K |
Current report
Results of operations
|
Aug 2, 2016 | Aug 2, 2016 |
| 8-K |
Current report
Agreement ended
|
Jul 12, 2016 | Jul 11, 2016 |
| 8-K/A |
Amended current report
Shareholder vote results
|
Jul 8, 2016 | May 19, 2016 |
| 8-K |
Current report
Other events
|
Jul 5, 2016 | Jul 5, 2016 |
| 8-K |
Current report
Officer or director change
|
May 25, 2016 | May 19, 2016 |
| 8-K |
Current report
Results of operations
|
May 3, 2016 | May 3, 2016 |
| 8-K |
Current report
Material agreement
|
Apr 1, 2016 | Mar 28, 2016 |
| 8-K |
Current report
Results of operations
|
Feb 18, 2016 | Feb 18, 2016 |
| 8-K |
Current report
Other events
|
Jan 7, 2016 | Jan 6, 2016 |
| 8-K |
Current report
Officer or director change
|
Dec 15, 2015 | Dec 9, 2015 |
| 8-K |
Current report
Results of operations
|
Nov 2, 2015 | Nov 2, 2015 |
| 8-K |
Current report
Other events
|
Oct 15, 2015 | Oct 15, 2015 |
| 8-K |
Current report
Results of operations
|
Aug 4, 2015 | Aug 4, 2015 |
| 8-K |
Current report
Officer or director change
|
Jun 29, 2015 | Jun 29, 2015 |
| 8-K |
Current report
Shareholder vote results
|
May 22, 2015 | May 21, 2015 |
| 8-K |
Current report
Results of operations
|
May 5, 2015 | May 5, 2015 |
| 8-K |
Current report
Other events
|
Apr 13, 2015 | Apr 7, 2015 |
| 8-K |
Current report
Regulation FD disclosure
|
Mar 23, 2015 | Mar 21, 2015 |
| 8-K |
Current report
Other events
|
Mar 19, 2015 | Mar 19, 2015 |
| 8-K |
Current report
Results of operations
|
Mar 5, 2015 | Mar 5, 2015 |
| 8-K |
Current report
Other events
|
Dec 15, 2014 | Dec 15, 2014 |
| 8-K |
Current report
Officer or director change
|
Dec 11, 2014 | Dec 10, 2014 |
| 8-K |
Current report
Other events
|
Dec 3, 2014 | Dec 2, 2014 |
| 8-K |
Current report
Other events
|
Dec 2, 2014 | Dec 2, 2014 |
| 8-K |
Current report
Results of operations
|
Nov 3, 2014 | Nov 3, 2014 |
| 8-K |
Current report
Results of operations
|
Aug 4, 2014 | Aug 4, 2014 |
| 8-K |
Current report
Material agreement
|
Jun 25, 2014 | Jun 24, 2014 |
| 8-K |
Current report
Shareholder vote results
|
May 22, 2014 | May 21, 2014 |
| 8-K |
Current report
Results of operations
|
May 5, 2014 | May 5, 2014 |
| 8-K |
Current report
Other events
|
Mar 18, 2014 | Mar 18, 2014 |
| 8-K |
Current report
Results of operations
|
Mar 6, 2014 | Mar 6, 2014 |
| 8-K |
Current report
Officer or director change
|
Mar 3, 2014 | Mar 1, 2014 |
| 8-K |
Current report
Material agreement
|
Jan 29, 2014 | Jan 29, 2014 |
| 8-K |
Current report
Results of operations, Other events
|
Jan 27, 2014 | Jan 27, 2014 |
| 8-K |
Current report
Material agreement, Regulation FD disclosure
|
Dec 11, 2013 | Dec 11, 2013 |
| 8-K |
Current report
Material agreement
|
Dec 5, 2013 | Nov 30, 2013 |
| 8-K |
Current report
Results of operations
|
Nov 12, 2013 | Nov 12, 2013 |
| 8-K |
Current report
Results of operations
|
Aug 12, 2013 | Aug 12, 2013 |
| 8-K |
Current report
Officer or director change
|
Jul 23, 2013 | Jul 22, 2013 |
| 8-K |
Current report
Shareholder vote results
|
May 28, 2013 | May 22, 2013 |
| 8-K |
Current report
Officer or director change
|
May 22, 2013 | May 20, 2013 |
| 8-K |
Current report
Results of operations
|
May 14, 2013 | May 14, 2013 |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Apr 23, 2013 | Apr 23, 2013 |
| 8-K |
Current report
Results of operations, Officer or director change
|
Mar 28, 2013 | Mar 25, 2013 |
| 8-K |
Current report
Officer or director change
|
Mar 20, 2013 | Mar 16, 2013 |
| 8-K |
Current report
Officer or director change
|
Mar 8, 2013 | Mar 4, 2013 |
Showing 160 filings. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
New to this? Read What Are SEC Filings? 10-K, 10-Q, 8-K and Other Forms Explained.
Company profile
- Industry
- Pharmaceutical Preparations (SIC 2834)
- Listed as
- PRTA (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- Ireland
- Headquarters
- Dublin 2, Ireland
- SEC filer status
- Accelerated filer
- SEC CIK
- 1559053
- Former names
- Prothena Corp plc (until May 22, 2020); Neotope Corp Ltd (until Oct 1, 2012)
Other Pharmaceutical Preparations companies
- ELI LILLY & Co LLY
- Johnson & Johnson JNJ
- AbbVie Inc. ABBV
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- Novartis AG NVS
- Astrazeneca PLC AZN
- Abbott Laboratories ABT
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.