PROTHENA CORP PUBLIC LTD CO - PRTA
Ownership (Schedule 13D / 13G) · latest 50 filings
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| Filed | Form | Reporting person | Percent | Shares | SEC |
|---|---|---|---|---|---|
| Aug 19, 2026 | SCHEDULE 13G/A | Fennell Todd W. | 10.2% | 5,248,846 | View |
| Aug 14, 2026 | SCHEDULE 13G/A | Fennell Todd W. | 9.8% | 5,010,846 | View |
| Aug 06, 2026 | SCHEDULE 13G/A | FMR LLC | 13.8% | 7,199,218 | View |
| Aug 06, 2026 | SCHEDULE 13G/A | Abigail P. Johnson | 13.8% | 7,199,218 | View |
| Jul 29, 2026 | SCHEDULE 13G/A | BlackRock, Inc. | 6.9% | 3,587,480 | View |
| May 15, 2026 | SCHEDULE 13G/A | Rubric Capital Management LP | 9.29% | 5,000,000 | View |
| May 15, 2026 | SCHEDULE 13G/A | David Rosen | 9.29% | 5,000,000 | View |
| May 11, 2026 | SCHEDULE 13G/A | SCULLY WILLIAM P | 10.3% | 5,378,846 | View |
Percent = "% of class represented by amount beneficially owned" for this reporting person in the filed 13D/13G.
Shares = reported beneficial ownership amount for the same row (not portfolio shares from 13F).
Amendments (/A) can repeat the same holder over time, so rows should not be summed.
Extraction is best-effort from filing text and can be missing or noisy; verify exact figures via the SEC link in each row.