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 5 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.
13F holders, Q3 2024
Institutional positions in Prothena Corp Public Ltd Co as of Sep 30, 2024. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 164
- +5 vs. Q2 2024
- Shares held
- 51.0M
- +4.02M (+8.6%) vs. Q2 2024
- Total value
- $855.8M
- −$113.4M (−11.7%) vs. Q2 2024
- New holders
- 24
- 50 more added
- Sold out
- 19
- 45 more reduced
1 institution that held it in Q2 2024 haven't filed for Q3 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2024: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting PRTA on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 187 | $462.7M |
| Q1 2026 | 186 | $459.5M |
| Q4 2025 | 182 | $451.6M |
| Q3 2025 | 187 | $415.8M |
| Q2 2025 | 189 | $253.6M |
| Q1 2025 | 161 | $647.2M |
| Q4 2024 | 171 | $741.3M |
| Q3 2024 | 164 | $855.8M |
| Q2 2024 | 160 | $1.05B |
| Q1 2024 | 169 | $1.33B |
| Q4 2023 | 187 | $1.95B |
| Q3 2023 | 187 | $2.56B |
| Q2 2023 | 196 | $3.54B |
| Q1 2023 | 192 | $2.51B |
| Q4 2022 | 201 | $2.98B |
| Q3 2022 | 183 | $2.69B |
| Q2 2022 | 167 | $1.21B |
| Q1 2022 | 174 | $1.61B |
| Q4 2021 | 196 | $2.12B |
| Q3 2021 | 192 | $2.92B |
| Q2 2021 | 156 | $2.08B |
| Q1 2021 | 146 | $1.00B |
Institutions, Q3 2024
Shares, value and share of portfolio for each institution holding Prothena Corp Public Ltd Co; share changes are against Q2 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| ProShare Advisors LLC | 11,212 | $187.6K | 0.00% | +11,212 | New |
| STRS Ohio | 11,200 | $187.4K | 0.00% | 00.0% | Unchanged |
| Two Sigma Investments, LP | 10,507 | $175.8K | 0.00% | −61,052−85.3% | Reduced |
| China Universal Asset Management Co., Ltd. | 10,344 | $173.1K | 0.02% | +4,026+63.7% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 10,236 | $171.2K | 0.00% | 00.0% | Unchanged |
| Arizona State Retirement System | 10,064 | $168.4K | 0.00% | +288+2.9% | Added |
| Royal Bank of Canada | 8,894 | $148.0K | 0.00% | +190+2.2% | Added |
| Systematic Financial Management LP | 8,125 | $135.9K | 0.00% | −185,638−95.8% | Reduced |
| Group One Trading, L.P. | 7,434 | $124.4K | 0.00% | +1,201+19.3% | Added |
| Catalyst Funds Management Pty Ltd | 6,700 | $112.1K | 0.02% | +1,600+31.4% | Added |
| Public Employees Retirement Association of Colorado | 6,552 | $110.0K | 0.00% | 00.0% | Unchanged |
| Simplex Trading, LLC | 5,977 | $99.0K | 0.00% | +3,710+163.7% | Added |
| Tower Research Capital LLC (TRC) | 5,457 | $91.3K | 0.00% | −1,533−21.9% | Reduced |
| Ameritas Investment Partners, Inc. | 4,368 | $73.1K | 0.00% | 00.0% | Unchanged |
| Virtus ETF Advisers LLC | 4,315 | $72.2K | 0.03% | +79+1.9% | Added |
| Headlands Technologies LLC | 2,472 | $41.4K | 0.00% | +797+47.6% | Added |
| Mirae Asset Global Investments Co., Ltd. | 1,945 | $39.0K | 0.00% | +340+21.2% | Added |
| Amalgamated Bank | 1,440 | $24.0K | 0.00% | 00.0% | Unchanged |
| Danske Bank A/S | 1,400 | $23.4K | 0.00% | +1,400 | New |
| Quadrant Capital Group LLC | 1,383 | $23.1K | 0.00% | +997+258.3% | Added |
| Nisa Investment Advisors, LLC | 1,215 | $20.3K | 0.00% | +174+16.7% | Added |
| Russell Investments Group, Ltd. | 995 | $16.6K | 0.00% | −756−43.2% | Reduced |
| Signaturefd, LLC | 901 | $15.1K | 0.00% | −436−32.6% | Reduced |
| Advisor Group Holdings, Inc. | 847 | $14.2K | 0.00% | −1,146−57.5% | Reduced |
| US Bancorp | 799 | $13.4K | 0.00% | −312−28.1% | Reduced |
| Byrne Asset Management LLC | 760 | $12.7K | 0.01% | +40+5.6% | Added |
| The PNC Financial Services Group, Inc. | 686 | $11.5K | 0.00% | −1,268−64.9% | Reduced |
| CWM, LLC | 545 | $9.00K | 0.00% | −253−31.7% | Reduced |
| Farther Finance Advisors, LLC | 375 | $6.27K | 0.00% | 00.0% | Unchanged |
| Aster Capital Management (DIFC) Ltd | 355 | $5.94K | 0.00% | +355 | New |
| Versant Capital Management, Inc | 325 | $5.44K | 0.00% | +271+501.9% | Added |
| Smartleaf Asset Management LLC | 269 | $5.39K | 0.00% | −131−32.8% | Reduced |
| Manchester Capital Management LLC | 250 | $4.18K | 0.00% | 00.0% | Unchanged |
| Private Wealth Management Group, LLC | 230 | $3.85K | 0.00% | +204+784.6% | Added |
| MeadowBrook Investment Advisors LLC | 200 | $3.35K | 0.00% | 00.0% | Unchanged |
| Asset Dedication, LLC | 184 | $3.08K | 0.00% | 00.0% | Unchanged |
| Daiwa Securities Group Inc. | 195 | $3.00K | 0.00% | 00.0% | Unchanged |
| Sittner & Nelson, LLC | 155 | $2.59K | 0.00% | 00.0% | Unchanged |
| Albion Financial Group | 125 | $2.09K | 0.00% | 00.0% | Unchanged |
| Cornerstone Planning Group LLC | 110 | $2.01K | 0.00% | +83+307.4% | Added |
| Lindbrook Capital, LLC | 103 | $1.72K | 0.00% | −758−88.0% | Reduced |
| Harbor Investment Advisory, LLC | 100 | $1.67K | 0.00% | 00.0% | Unchanged |
| Gould Capital, LLC | 100 | $1.67K | 0.00% | 00.0% | Unchanged |
| EverSource Wealth Advisors, LLC | 95 | $1.59K | 0.00% | 00.0% | Unchanged |
| CVA Family Office, LLC | 94 | $1.57K | 0.00% | +94 | New |
| Sterling Capital Management LLC | 91 | $1.52K | 0.00% | +91 | New |
| Allspring Global Investments Holdings, LLC | 73 | $1.22K | 0.00% | −1,662−95.8% | Reduced |
| Truvestments Capital LLC | 68 | $1.14K | 0.00% | +68 | New |
| GAMMA Investing LLC | 67 | $1.12K | 0.00% | −300−81.7% | Reduced |
| Ronald Blue Trust, Inc. | 53 | $1.09K | 0.00% | −117−68.8% | Reduced |
| Bessemer Group Inc | 55 | $1.00K | 0.00% | +55 | New |
| CIBC Private Wealth Group, LLC | 49 | $820 | 0.00% | 00.0% | Unchanged |
| Allworth Financial LP | 44 | $737 | 0.00% | +12+37.5% | Added |
| Rothschild Investment LLC | 40 | $669 | 0.00% | +30+300.0% | Added |
| POM Investment Strategies, LLC | 24 | $402 | 0.00% | 00.0% | Unchanged |
| CoreCap Advisors, LLC | 23 | $385 | 0.00% | 00.0% | Unchanged |
| Key Financial Inc | 12 | $201 | 0.00% | 00.0% | Unchanged |
| Lowe Wealth Advisors, LLC | 10 | $167 | 0.00% | 00.0% | Unchanged |
| Massmutual Trust Co FSB | 6 | $100 | 0.00% | −21−77.8% | Reduced |
| Clearstead Advisors, LLC | 4 | $67 | 0.00% | 00.0% | Unchanged |
| Whittier Trust Co of Nevada Inc | 3 | $50 | 0.00% | 00.0% | Unchanged |
| Hallmark Capital Management Inc | 3 | $50 | 0.00% | +3 | New |
| Harbour Investments, Inc. | 1 | $17 | 0.00% | 00.0% | Unchanged |
| Covestor Ltd | 4 | $0 | 0.00% | 00.0% | Unchanged |
| Parallel Advisors, LLC | 0 | $0 | 0.00% | −29−100.0% | Sold out |
| Artal Group S.A. | 0 | $0 | 0.00% | −1,001,360−100.0% | Sold out |
| ExodusPoint Capital Management, LP | 0 | $0 | 0.00% | −47,107−100.0% | Sold out |
| Walleye Capital LLC | 0 | $0 | 0.00% | −46,098−100.0% | Sold out |
| Guggenheim Capital LLC | 0 | $0 | 0.00% | −43,248−100.0% | Sold out |
| Y-Intercept (Hong Kong) Ltd | 0 | $0 | 0.00% | −21,351−100.0% | Sold out |
| Focused Wealth Management, Inc | 0 | $0 | 0.00% | −20,129−100.0% | Sold out |
| HighTower Advisors, LLC | 0 | $0 | 0.00% | −18,717−100.0% | Sold out |
| Fox Run Management, L.L.C. | 0 | $0 | 0.00% | −18,591−100.0% | Sold out |
| Verition Fund Management LLC | 0 | $0 | 0.00% | −15,757−100.0% | Sold out |
| NEOS Investment Management LLC | 0 | $0 | 0.00% | −10,511−100.0% | Sold out |
| ADAR1 Capital Management, LLC | 0 | $0 | 0.00% | −5,988−100.0% | Sold out |
| Pacer Advisors, Inc. | 0 | $0 | 0.00% | −552−100.0% | Sold out |
| Clear Street Markets LLC | 0 | $0 | 0.00% | −500−100.0% | Sold out |
| Kelly Financial Services LLC | 0 | $0 | 0.00% | −182−100.0% | Sold out |
| Mather Group, LLC. | 0 | $0 | 0.00% | −100−100.0% | Sold out |
| Global Retirement Partners, LLC | 0 | $0 | 0.00% | −7−100.0% | Sold out |
| Register Financial Advisors LLC | 0 | $0 | 0.00% | −4−100.0% | Sold out |
| Cypress Capital, LLC | 0 | $0 | 0.00% | −2−100.0% | Sold out |
| BlackRock Inc. | – | – | – | – | Not filed |