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 4 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, Q2 2022
Institutional positions in Prothena Corp Public Ltd Co as of Jun 30, 2022. 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
- 167
- −4 vs. Q1 2022
- Shares held
- 44.5M
- +491.0K (+1.1%) vs. Q1 2022
- Total value
- $1.21B
- −$400.2M (−24.8%) vs. Q1 2022
- New holders
- 17
- 44 more added
- Sold out
- 21
- 54 more reduced
3 institutions that held it in Q1 2022 haven't filed for Q2 2022 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2022: 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, Q2 2022
Shares, value and share of portfolio for each institution holding Prothena Corp Public Ltd Co; share changes are against Q1 2022.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Cubist Systematic Strategies, LLC | 12,580 | $342.0K | 0.00% | +4,306+52.0% | Added |
| Wells Fargo & Company | 12,231 | $332.0K | 0.00% | −15,052−55.2% | Reduced |
| Mirae Asset Global Investments Co., Ltd. | 10,890 | $296.0K | 0.00% | +10,890 | New |
| E Fund Management Co., Ltd. | 9,345 | $254.0K | 0.02% | +2,143+29.8% | Added |
| Wetherby Asset Management Inc | 9,082 | $247.0K | 0.02% | +2,500+38.0% | Added |
| Arizona State Retirement System | 8,856 | $240.0K | 0.00% | +39+0.4% | Added |
| BNP Paribas Arbitrage, SA | 8,299 | $225.3K | 0.00% | +5,226+170.1% | Added |
| ProShare Advisors LLC | 7,630 | $207.0K | 0.00% | −3,979−34.3% | Reduced |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 7,006 | $190.0K | 0.00% | 00.0% | Unchanged |
| Public Employees Retirement Association of Colorado | 6,552 | $178.0K | 0.00% | 00.0% | Unchanged |
| Fieldpoint Private Securities, LLC | 6,000 | $163.0K | 0.05% | +2,000+50.0% | Added |
| Amalgamated Bank | 5,631 | $153.0K | 0.00% | +90+1.6% | Added |
| Tower Research Capital LLC (TRC) | 5,056 | $137.0K | 0.00% | −3,167−38.5% | Reduced |
| Virtus ETF Advisers LLC | 4,523 | $123.0K | 0.05% | +837+22.7% | Added |
| Federated Hermes, Inc. | 4,503 | $122.0K | 0.00% | −96,726−95.6% | Reduced |
| Simplex Trading, LLC | 3,231 | $87.0K | 0.00% | +3,231 | New |
| Ameritas Investment Partners, Inc. | 2,702 | $73.0K | 0.00% | 00.0% | Unchanged |
| Metropolitan Life Insurance Co | 2,329 | $63.2K | 0.00% | 00.0% | Unchanged |
| Brewin Dolphin Wealth Management Ltd | 2,009 | $55.0K | 0.01% | 00.0% | Unchanged |
| Barclays PLC | 1,781 | $48.0K | 0.00% | −6,149−77.5% | Reduced |
| Lazard Asset Management LLC | 1,733 | $47.0K | 0.00% | 00.0% | Unchanged |
| Macquarie Group Ltd | 1,548 | $42.0K | 0.00% | 00.0% | Unchanged |
| Advisor Group Holdings, Inc. | 1,239 | $33.0K | 0.00% | +923+292.1% | Added |
| Captrust Financial Advisors | 1,177 | $32.0K | 0.00% | −143−10.8% | Reduced |
| HighMark Wealth Management LLC | 1,175 | $32.0K | 0.03% | 00.0% | Unchanged |
| US Bancorp | 1,160 | $31.0K | 0.00% | 00.0% | Unchanged |
| Parallel Advisors, LLC | 995 | $27.0K | 0.00% | −3−0.3% | Reduced |
| State of Wyoming | 966 | $26.0K | 0.02% | −4,981−83.8% | Reduced |
| Point72 Hong Kong Ltd | 738 | $20.0K | 0.00% | −3,125−80.9% | Reduced |
| International Biotechnology Trust PLC | 407 | $15.0K | 0.30% | −14,593−97.3% | Reduced |
| Nisa Investment Advisors, LLC | 500 | $14.0K | 0.00% | 00.0% | Unchanged |
| The PNC Financial Services Group, Inc. | 416 | $11.0K | 0.00% | 00.0% | Unchanged |
| Signaturefd, LLC | 420 | $11.0K | 0.00% | 00.0% | Unchanged |
| TCI Wealth Advisors, Inc. | 226 | $6.00K | 0.00% | +88+63.8% | Added |
| Asset Dedication, LLC | 184 | $5.00K | 0.00% | 00.0% | Unchanged |
| Kelly Financial Services LLC | 182 | $4.94K | 0.00% | 00.0% | Unchanged |
| Daiwa Securities Group Inc. | 154 | $4.00K | 0.00% | 00.0% | Unchanged |
| Sittner & Nelson, LLC | 155 | $4.00K | 0.00% | 00.0% | Unchanged |
| Focused Wealth Management, Inc | 129 | $4.00K | 0.00% | 00.0% | Unchanged |
| Albion Financial Group | 125 | $3.00K | 0.00% | 00.0% | Unchanged |
| Hall Laurie J Trustee | 110 | $3.00K | 0.00% | 00.0% | Unchanged |
| Harbor Investment Advisory, LLC | 100 | $3.00K | 0.00% | 00.0% | Unchanged |
| Gould Capital, LLC | 100 | $3.00K | 0.00% | 00.0% | Unchanged |
| Rockbridge Investment Management, LCC | 100 | $2.71K | 0.00% | 00.0% | Unchanged |
| Huntington National Bank | 73 | $2.00K | 0.00% | 00.0% | Unchanged |
| Rockefeller Capital Management L.P. | 100 | $2.00K | 0.00% | +15+17.6% | Added |
| Bessemer Group Inc | 63 | $2.00K | 0.00% | 00.0% | Unchanged |
| C M Bidwell & Associates Ltd | 50 | $1.00K | 0.00% | 00.0% | Unchanged |
| CWM, LLC | 32 | $1.00K | 0.00% | −10−23.8% | Reduced |
| Allworth Financial LP | 23 | $1.00K | 0.00% | 00.0% | Unchanged |
| Centerpoint Advisors, LLC | 36 | $1.00K | 0.00% | 00.0% | Unchanged |
| American Portfolios Advisors | 2 | $54 | 0.00% | 00.0% | Unchanged |
| Brewin Dolphin Ltd | 16 | $0 | 0.00% | 00.0% | Unchanged |
| Whittier Trust Co of Nevada Inc | 3 | $0 | 0.00% | 00.0% | Unchanged |
| Covington Capital Management | 7 | $0 | 0.00% | 00.0% | Unchanged |
| Blue Bell Private Wealth Management, LLC | 12 | $0 | 0.00% | 00.0% | Unchanged |
| JFS Wealth Advisors, LLC | 3 | $0 | 0.00% | 00.0% | Unchanged |
| Lowe Wealth Advisors, LLC | 10 | $0 | 0.00% | +9+900.0% | Added |
| Patriot Financial Group Insurance Agency, LLC | 4 | $0 | 0.00% | 00.0% | Unchanged |
| Geneos Wealth Management Inc. | 26 | $0 | 0.00% | 00.0% | Unchanged |
| Coastal Capital Group, Inc. | 2 | $0 | 0.00% | 00.0% | Unchanged |
| TSFG, LLC | 2 | $0 | 0.00% | 00.0% | Unchanged |
| Disciplined Investments, LLC | 1 | $0 | 0.00% | −1−50.0% | Reduced |
| Schubert & Co | 6 | $0 | 0.00% | +3+100.0% | Added |
| Harbour Investments, Inc. | 5 | $0 | 0.00% | +5 | New |
| CoreCap Advisors, LLC | 11 | $0 | 0.00% | +11 | New |
| Steward Financial Group LLC | 4 | $0 | 0.00% | +4 | New |
| Paradigm Biocapital Advisors LP | 0 | $0 | 0.00% | −267,946−100.0% | Sold out |
| Perceptive Advisors LLC | 0 | $0 | 0.00% | −65,144−100.0% | Sold out |
| Gsa Capital Partners LLP | 0 | $0 | 0.00% | −31,142−100.0% | Sold out |
| Gotham Asset Management, LLC | 0 | $0 | 0.00% | −25,784−100.0% | Sold out |
| Engineers Gate Manager LP | 0 | $0 | 0.00% | −21,992−100.0% | Sold out |
| Twinbeech Capital LP | 0 | $0 | 0.00% | −18,374−100.0% | Sold out |
| Algert Global LLC | 0 | $0 | 0.00% | −16,875−100.0% | Sold out |
| Healthcare of Ontario Pension Plan Trust Fund | 0 | $0 | 0.00% | −16,800−100.0% | Sold out |
| AlphaCrest Capital Management LLC | 0 | $0 | 0.00% | −15,348−100.0% | Sold out |
| Massachusetts Financial Services Co | 0 | $0 | 0.00% | −13,556−100.0% | Sold out |
| HighVista Strategies LLC | 0 | $0 | 0.00% | −12,953−100.0% | Sold out |
| Franklin Resources Inc | 0 | $0 | 0.00% | −9,236−100.0% | Sold out |
| AQR Capital Management LLC | 0 | $0 | 0.00% | −8,363−100.0% | Sold out |
| HighTower Advisors, LLC | 0 | $0 | 0.00% | −7,820−100.0% | Sold out |
| Teacher Retirement System of Texas | 0 | $0 | 0.00% | −6,685−100.0% | Sold out |
| King Wealth | 0 | $0 | 0.00% | −6,000−100.0% | Sold out |
| Aquatic Capital Management LLC | 0 | $0 | 0.00% | −2,000−100.0% | Sold out |
| Group One Trading, L.P. | 0 | $0 | 0.00% | −1,029−100.0% | Sold out |
| Lloyd Advisory Services, LLC. | 0 | $0 | 0.00% | −48−100.0% | Sold out |
| Investors Research Corp | 0 | $0 | 0.00% | −4−100.0% | Sold out |
| Cordant, Inc. | 0 | $0 | 0.00% | −4−100.0% | Sold out |
| Parametric Portfolio Associates LLC | – | – | – | – | Not filed |
| Virginia Retirement Systems Et Al | – | – | – | – | Not filed |
| Amalgamated Financial Corp. | – | – | – | – | Not filed |