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, Q4 2022
Institutional positions in Prothena Corp Public Ltd Co as of Dec 31, 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
- 201
- +21 vs. Q3 2022
- Shares held
- 49.4M
- +4.96M (+11.2%) vs. Q3 2022
- Total value
- $2.98B
- +$282.3M (+10.5%) vs. Q3 2022
- New holders
- 44
- 77 more added
- Sold out
- 23
- 51 more reduced
3 institutions that held it in Q3 2022 haven't filed for Q4 2022 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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, Q4 2022
Shares, value and share of portfolio for each institution holding Prothena Corp Public Ltd Co; share changes are against Q3 2022.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Mirae Asset Global Investments Co., Ltd. | 16,704 | $1.01M | 0.00% | +53+0.3% | Added |
| Ergoteles LLC | 15,525 | $935.4K | 0.03% | +11,722+308.2% | Added |
| Neo Ivy Capital Management | 15,120 | $911.0K | 0.62% | +15,120 | New |
| HighVista Strategies LLC | 14,572 | $878.0K | 0.52% | +14,572 | New |
| DekaBank Deutsche Girozentrale | 14,000 | $825.0K | 0.00% | 00.0% | Unchanged |
| Occudo Quantitative Strategies LP | 12,965 | $781.1K | 0.09% | −25,924−66.7% | Reduced |
| STRS Ohio | 12,500 | $753.0K | 0.00% | −7,100−36.2% | Reduced |
| Royal Bank of Canada | 12,497 | $753.0K | 0.00% | +4,796+62.3% | Added |
| State Board of Administration of Florida Retirement System | 11,286 | $680.0K | 0.00% | −4,780−29.8% | Reduced |
| Susquehanna International Group, LLP | 10,718 | $645.8K | 0.00% | −87,988−89.1% | Reduced |
| Wells Fargo & Company | 10,665 | $642.6K | 0.00% | −1,834−14.7% | Reduced |
| Aquatic Capital Management LLC | 9,900 | $596.0K | 0.04% | +9,900 | New |
| Teacher Retirement System of Texas | 9,738 | $587.0K | 0.00% | −944−8.8% | Reduced |
| Victory Capital Management Inc | 9,418 | $567.4K | 0.00% | −5,157−35.4% | Reduced |
| Acuta Capital Partners, LLC | 9,300 | $560.3K | 0.34% | +9,300 | New |
| Arizona State Retirement System | 9,268 | $558.4K | 0.01% | +364+4.1% | Added |
| ProShare Advisors LLC | 8,719 | $525.3K | 0.00% | +861+11.0% | Added |
| Campbell & CO Investment Adviser LLC | 8,527 | $513.8K | 0.12% | +104+1.2% | Added |
| US Bancorp | 8,118 | $489.1K | 0.00% | +7,357+966.8% | Added |
| HighMark Wealth Management LLC | 7,527 | $453.5K | 0.34% | +6,352+540.6% | Added |
| E Fund Management Co., Ltd. | 7,243 | $436.0K | 0.04% | −86−1.2% | Reduced |
| Qube Research & Technologies Ltd | 7,200 | $433.8K | 0.00% | +7,200 | New |
| Kiwi Wealth Investments Limited Partnership | 7,121 | $429.0K | 0.03% | −9,779−57.9% | Reduced |
| Advisory Research Inc | 7,120 | $429.0K | 0.04% | +7,120 | New |
| Allspring Global Investments Holdings, LLC | 6,984 | $420.8K | 0.00% | −5,773−45.3% | Reduced |
| Public Employees Retirement Association of Colorado | 6,552 | $395.0K | 0.00% | 00.0% | Unchanged |
| Amalgamated Bank | 6,126 | $369.0K | 0.00% | +406+7.1% | Added |
| Snowden Capital Advisors LLC | 6,098 | $367.4K | 0.02% | +6,098 | New |
| Los Angeles Capital Management LLC | 5,576 | $336.0K | 0.00% | −530−8.7% | Reduced |
| Squarepoint Ops LLC | 5,516 | $332.3K | 0.00% | +5,516 | New |
| Glenmede Trust Co NA | 5,392 | $324.9K | 0.00% | +5,392 | New |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 5,386 | $324.5K | 0.00% | +1,178+28.0% | Added |
| Axq Capital, LP | 5,125 | $308.8K | 0.21% | +5,125 | New |
| Brighton Jones LLC | 5,006 | $301.6K | 0.02% | +5+0.1% | Added |
| Raymond James & Associates | 5,005 | $301.6K | 0.00% | +5,005 | New |
| Telemetry Investments, L.L.C. | 5,000 | $301.0K | 0.70% | +5,000 | New |
| Franklin Resources Inc | 4,200 | $253.1K | 0.00% | −2,150−33.9% | Reduced |
| American Century Companies Inc | 4,167 | $251.1K | 0.00% | +4,167 | New |
| Engineers Gate Manager LP | 4,135 | $249.1K | 0.01% | +4,135 | New |
| Pictet Asset Management SA | 4,067 | $245.0K | 0.00% | +4,067 | New |
| Captrust Financial Advisors | 3,976 | $239.5K | 0.00% | +3,976 | New |
| Wetherby Asset Management Inc | 3,840 | $231.4K | 0.01% | −3,242−45.8% | Reduced |
| Susquehanna Fundamental Investments, LLC | 3,425 | $206.4K | 0.00% | 00.0% | Unchanged |
| Ameritas Investment Partners, Inc. | 2,934 | $161.7K | 0.01% | +232+8.6% | Added |
| Amundi | 2,781 | $156.0K | 0.00% | −250−8.2% | Reduced |
| Virtus ETF Advisers LLC | 2,416 | $145.6K | 0.08% | −2,141−47.0% | Reduced |
| Metropolitan Life Insurance Co | 2,329 | $140.3K | 0.01% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 1,546 | $93.0K | 0.00% | −6,767−81.4% | Reduced |
| Advisor Group Holdings, Inc. | 1,351 | $81.1K | 0.00% | +126+10.3% | Added |
| Kapitalo Investimentos Ltda | 1,300 | $78.3K | 0.06% | +1,300 | New |
| Balyasny Asset Management LLC | 1,115 | $67.2K | 0.00% | −5,400−82.9% | Reduced |
| Federated Hermes, Inc. | 1,042 | $62.8K | 0.00% | −349,095−99.7% | Reduced |
| Point72 Middle East FZE | 791 | $47.7K | 0.00% | +791 | New |
| Nisa Investment Advisors, LLC | 525 | $32.0K | 0.00% | 00.0% | Unchanged |
| Cutler Group LP | 500 | $30.0K | 0.00% | +500 | New |
| China Universal Asset Management Co., Ltd. | 491 | $29.6K | 0.01% | +52+11.8% | Added |
| The PNC Financial Services Group, Inc. | 416 | $25.1K | 0.00% | −150−26.5% | Reduced |
| First Manhattan Co | 377 | $22.7K | 0.00% | +377 | New |
| Signaturefd, LLC | 340 | $20.5K | 0.00% | −84−19.8% | Reduced |
| TCI Wealth Advisors, Inc. | 263 | $15.8K | 0.00% | +36+15.9% | Added |
| Citadel Advisors LLC | 249 | $15.0K | 0.00% | −188,394−99.9% | Reduced |
| Northwestern Mutual Wealth Management Co | 211 | $12.7K | 0.00% | +211 | New |
| Byrne Asset Management LLC | 207 | $12.5K | 0.01% | +207 | New |
| Daiwa Securities Group Inc. | 195 | $12.0K | 0.00% | +41+26.6% | Added |
| Asset Dedication, LLC | 184 | $11.0K | 0.00% | 00.0% | Unchanged |
| Kelly Financial Services LLC | 182 | $11.0K | 0.01% | 00.0% | Unchanged |
| Sittner & Nelson, LLC | 155 | $9.34K | 0.01% | 00.0% | Unchanged |
| HealthInvest Partners AB | 131 | $7.89K | 0.02% | +131 | New |
| Focused Wealth Management, Inc | 129 | $7.77K | 0.00% | 00.0% | Unchanged |
| Albion Financial Group | 125 | $7.53K | 0.00% | 00.0% | Unchanged |
| Harbor Investment Advisory, LLC | 100 | $6.03K | 0.00% | 00.0% | Unchanged |
| Gould Capital, LLC | 100 | $6.03K | 0.00% | 00.0% | Unchanged |
| Rockefeller Capital Management L.P. | 99 | $5.00K | 0.00% | 00.0% | Unchanged |
| CWM, LLC | 90 | $5.00K | 0.00% | +58+181.3% | Added |
| Huntington National Bank | 73 | $4.40K | 0.00% | 00.0% | Unchanged |
| Allworth Financial LP | 68 | $4.10K | 0.00% | +13+23.6% | Added |
| Belpointe Asset Management LLC | 54 | $3.25K | 0.00% | +54 | New |
| C M Bidwell & Associates Ltd | 50 | $3.01K | 0.00% | 00.0% | Unchanged |
| Hall Laurie J Trustee | 50 | $3.00K | 0.00% | −30−37.5% | Reduced |
| SJS Investment Consulting Inc. | 43 | $2.59K | 0.00% | +38+760.0% | Added |
| Lindbrook Capital, LLC | 42 | $2.53K | 0.00% | +4+10.5% | Added |
| Centerpoint Advisors, LLC | 36 | $2.00K | 0.00% | 00.0% | Unchanged |
| Accurate Wealth Management, LLC | 29 | $1.54K | 0.00% | +29 | New |
| CoreCap Advisors, LLC | 23 | $1.39K | 0.00% | +23 | New |
| Salem Investment Counselors Inc | 20 | $1.21K | 0.00% | +20 | New |
| Quadrant Capital Group LLC | 19 | $1.15K | 0.00% | 00.0% | Unchanged |
| Farther Finance Advisors, LLC | 18 | $1.08K | 0.00% | +18 | New |
| Schubert & Co | 13 | $783 | 0.00% | +3+30.0% | Added |
| McElhenny Sheffield Capital Management, LLC | 13 | $783 | 0.00% | +13 | New |
| Blue Bell Private Wealth Management, LLC | 12 | $723 | 0.00% | 00.0% | Unchanged |
| Lowe Wealth Advisors, LLC | 10 | $603 | 0.00% | 00.0% | Unchanged |
| JFS Wealth Advisors, LLC | 7 | $422 | 0.00% | +3+75.0% | Added |
| Madden Securities Corp | 6 | $362 | 0.00% | +6 | New |
| Harbour Investments, Inc. | 5 | $301 | 0.00% | 00.0% | Unchanged |
| Parallel Advisors, LLC | 3 | $181 | 0.00% | −992−99.7% | Reduced |
| Whittier Trust Co of Nevada Inc | 3 | $180 | 0.00% | 00.0% | Unchanged |
| Coastal Capital Group, Inc. | 2 | $121 | 0.00% | 00.0% | Unchanged |
| Disciplined Investments, LLC | 2 | $121 | 0.00% | 00.0% | Unchanged |
| AdvisorNet Financial, Inc | 2 | $121 | 0.00% | +2 | New |
| Covestor Ltd | 3 | $0 | 0.00% | −1−25.0% | Reduced |