Prothena Corp Public Ltd Co
PRTA- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001559053
In the last 90 days, Prothena Corp Public Ltd Co insiders filed 6 open-market purchases and 2 sales; 187 institutions reported holding it in 13F filings for Q2 2026, worth $462.7M in total; no superinvestor holds it.
Q1 2025 vs. Q4 2024
How the institutions holding Prothena Corp Public Ltd Co changed between Q4 2024 and Q1 2025.
All holders in Q1 2025All holders in Q4 2024
| Measure | Q4 2024 | Of which not filed for Q1 2025 | Q1 2025 | Change |
|---|---|---|---|---|
| Holders | 171 | 2 | 161 | −8 |
| Shares | 53.5M | 152.1K | 52.3M | −1.06M (−2.0%) |
| Value | $741.3M | $2.11M | $647.2M | −$91.9M (−12.4%) |
2 institutions that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so the changes leave them out.
New holders (17)
Institutions that held Prothena Corp Public Ltd Co at the end of Q1 2025 but not at the end of Q4 2024.
| Institution | Shares | Value | % of portfolio |
|---|---|---|---|
| Nordea Investment Management AB | 307,987 | $3.74M | 0.00% |
| Nuveen, LLC | 149,961 | $1.86M | 0.00% |
| ExodusPoint Capital Management, LP | 41,272 | $511.0K | 0.01% |
| Dark Forest Capital Management LP | 21,059 | $260.6K | 0.01% |
| Jacobs Levy Equity Management, Inc | 18,553 | $229.6K | 0.00% |
| D. E. Shaw & Co., Inc. | 17,803 | $220.3K | 0.00% |
| Shelton Capital Management | 15,233 | $188.5K | 0.00% |
| HRT Financial LP | 14,036 | $173.0K | 0.00% |
| Commonwealth Equity Services, LLC | 13,320 | $165.0K | 0.00% |
| Virtus Investment Advisers, Inc. | 11,891 | $147.2K | 0.04% |
| Cambridge Investment Research Advisors, Inc. | 10,164 | $126.0K | 0.00% |
| Boston Private Wealth LLC | 274 | $3.39K | 0.00% |
| Spire Wealth Management | 200 | $2.48K | 0.00% |
| North Capital, Inc. | 159 | $1.97K | 0.00% |
| Coldstream Capital Management Inc | 51 | $632 | 0.00% |
| Parkside Financial Bank & Trust | 30 | $372 | 0.00% |
| Smartleaf Asset Management LLC | 9 | $118 | 0.00% |
Sold out (25)
Institutions that held Prothena Corp Public Ltd Co at the end of Q4 2024 and filed for Q1 2025 without it.
| Institution | Shares, Q4 2024 | Value, Q4 2024 |
|---|---|---|
| AXA S.A. | 120,630 | $1.67M |
| Boothbay Fund Management, LLC | 62,002 | $858.7K |
| Verition Fund Management LLC | 39,422 | $546.0K |
| Balyasny Asset Management LLC | 38,021 | $526.6K |
| Tudor Investment Corp Et Al | 27,398 | $379.5K |
| Caption Management, LLC | 24,000 | $332.4K |
| XTX Topco Ltd | 18,665 | $258.5K |
| Schroder Investment Management Group | 15,000 | $223.2K |
| Profund Advisors LLC | 15,212 | $210.7K |
| Walleye Capital LLC | 14,953 | $207.1K |
| Wolverine Trading, LLC | 11,162 | $166.1K |
| Teacher Retirement System of Texas | 10,434 | $145.0K |
| Arizona State Retirement System | 10,136 | $140.4K |
| Headlands Technologies LLC | 7,330 | $101.5K |
| Virtus ETF Advisers LLC | 5,148 | $71.3K |
| Group One Trading, L.P. | 4,824 | $66.8K |
| Acadian Asset Management LLC | 4,565 | $63.0K |
| STRS Ohio | 3,600 | $49.9K |
| MeadowBrook Investment Advisors LLC | 200 | $2.77K |
| Quadrant Capital Group LLC | 158 | $2.19K |
| Private Wealth Management Group, LLC | 104 | $1.44K |
| Huntington National Bank | 34 | $471 |
| POM Investment Strategies, LLC | 24 | $332 |
| Colonial Trust Advisors | 7 | $97 |
| Sandy Spring Bank | 0 | $4 |
Not filed for Q1 2025 yet (2)
Institutions that held Prothena Corp Public Ltd Co at the end of Q4 2024 and haven't filed a 13F for Q1 2025. Not filing isn't selling, so they aren't counted as sold out.
| Institution | Shares, Q4 2024 | Value, Q4 2024 |
|---|---|---|
| Nuveen Asset Management, LLC | 152,107 | $2.11M |
| Cassady Schiller Wealth Management, LLC | 34 | $471 |