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, 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 |
|---|---|---|---|---|---|
| Covestor Ltd | 3 | $0 | 0.00% | −1−25.0% | Reduced |
| Steward Financial Group LLC | 3 | $0 | 0.00% | +3 | New |
| 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 |
| Whittier Trust Co of Nevada Inc | 3 | $180 | 0.00% | 00.0% | Unchanged |
| Parallel Advisors, LLC | 3 | $181 | 0.00% | −992−99.7% | Reduced |
| Harbour Investments, Inc. | 5 | $301 | 0.00% | 00.0% | Unchanged |
| Madden Securities Corp | 6 | $362 | 0.00% | +6 | New |
| JFS Wealth Advisors, LLC | 7 | $422 | 0.00% | +3+75.0% | Added |
| Lowe Wealth Advisors, LLC | 10 | $603 | 0.00% | 00.0% | Unchanged |
| Blue Bell Private Wealth Management, LLC | 12 | $723 | 0.00% | 00.0% | Unchanged |
| Schubert & Co | 13 | $783 | 0.00% | +3+30.0% | Added |
| McElhenny Sheffield Capital Management, LLC | 13 | $783 | 0.00% | +13 | New |
| Farther Finance Advisors, LLC | 18 | $1.08K | 0.00% | +18 | New |
| Quadrant Capital Group LLC | 19 | $1.15K | 0.00% | 00.0% | Unchanged |
| Salem Investment Counselors Inc | 20 | $1.21K | 0.00% | +20 | New |
| CoreCap Advisors, LLC | 23 | $1.39K | 0.00% | +23 | New |
| Accurate Wealth Management, LLC | 29 | $1.54K | 0.00% | +29 | New |
| Centerpoint Advisors, LLC | 36 | $2.00K | 0.00% | 00.0% | Unchanged |
| Lindbrook Capital, LLC | 42 | $2.53K | 0.00% | +4+10.5% | Added |
| SJS Investment Consulting Inc. | 43 | $2.59K | 0.00% | +38+760.0% | Added |
| Hall Laurie J Trustee | 50 | $3.00K | 0.00% | −30−37.5% | Reduced |
| C M Bidwell & Associates Ltd | 50 | $3.01K | 0.00% | 00.0% | Unchanged |
| Belpointe Asset Management LLC | 54 | $3.25K | 0.00% | +54 | New |
| Allworth Financial LP | 68 | $4.10K | 0.00% | +13+23.6% | Added |
| Huntington National Bank | 73 | $4.40K | 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 |
| Harbor Investment Advisory, LLC | 100 | $6.03K | 0.00% | 00.0% | Unchanged |
| Gould Capital, LLC | 100 | $6.03K | 0.00% | 00.0% | Unchanged |
| Albion Financial Group | 125 | $7.53K | 0.00% | 00.0% | Unchanged |
| Focused Wealth Management, Inc | 129 | $7.77K | 0.00% | 00.0% | Unchanged |
| HealthInvest Partners AB | 131 | $7.89K | 0.02% | +131 | New |
| Sittner & Nelson, LLC | 155 | $9.34K | 0.01% | 00.0% | Unchanged |
| Kelly Financial Services LLC | 182 | $11.0K | 0.01% | 00.0% | Unchanged |
| Asset Dedication, LLC | 184 | $11.0K | 0.00% | 00.0% | Unchanged |
| Daiwa Securities Group Inc. | 195 | $12.0K | 0.00% | +41+26.6% | Added |
| Byrne Asset Management LLC | 207 | $12.5K | 0.01% | +207 | New |
| Northwestern Mutual Wealth Management Co | 211 | $12.7K | 0.00% | +211 | New |
| Citadel Advisors LLC | 249 | $15.0K | 0.00% | −188,394−99.9% | Reduced |
| TCI Wealth Advisors, Inc. | 263 | $15.8K | 0.00% | +36+15.9% | Added |
| Signaturefd, LLC | 340 | $20.5K | 0.00% | −84−19.8% | Reduced |
| First Manhattan Co | 377 | $22.7K | 0.00% | +377 | New |
| The PNC Financial Services Group, Inc. | 416 | $25.1K | 0.00% | −150−26.5% | Reduced |
| China Universal Asset Management Co., Ltd. | 491 | $29.6K | 0.01% | +52+11.8% | Added |
| Cutler Group LP | 500 | $30.0K | 0.00% | +500 | New |
| Nisa Investment Advisors, LLC | 525 | $32.0K | 0.00% | 00.0% | Unchanged |
| Point72 Middle East FZE | 791 | $47.7K | 0.00% | +791 | New |
| Federated Hermes, Inc. | 1,042 | $62.8K | 0.00% | −349,095−99.7% | Reduced |
| Balyasny Asset Management LLC | 1,115 | $67.2K | 0.00% | −5,400−82.9% | Reduced |
| Kapitalo Investimentos Ltda | 1,300 | $78.3K | 0.06% | +1,300 | New |
| Advisor Group Holdings, Inc. | 1,351 | $81.1K | 0.00% | +126+10.3% | Added |
| Tower Research Capital LLC (TRC) | 1,546 | $93.0K | 0.00% | −6,767−81.4% | Reduced |
| Metropolitan Life Insurance Co | 2,329 | $140.3K | 0.01% | 00.0% | Unchanged |
| Virtus ETF Advisers LLC | 2,416 | $145.6K | 0.08% | −2,141−47.0% | Reduced |
| Amundi | 2,781 | $156.0K | 0.00% | −250−8.2% | Reduced |
| Ameritas Investment Partners, Inc. | 2,934 | $161.7K | 0.01% | +232+8.6% | Added |
| Susquehanna Fundamental Investments, LLC | 3,425 | $206.4K | 0.00% | 00.0% | Unchanged |
| Wetherby Asset Management Inc | 3,840 | $231.4K | 0.01% | −3,242−45.8% | Reduced |
| Captrust Financial Advisors | 3,976 | $239.5K | 0.00% | +3,976 | New |
| Pictet Asset Management SA | 4,067 | $245.0K | 0.00% | +4,067 | New |
| Engineers Gate Manager LP | 4,135 | $249.1K | 0.01% | +4,135 | New |
| American Century Companies Inc | 4,167 | $251.1K | 0.00% | +4,167 | New |
| Franklin Resources Inc | 4,200 | $253.1K | 0.00% | −2,150−33.9% | Reduced |
| Telemetry Investments, L.L.C. | 5,000 | $301.0K | 0.70% | +5,000 | New |
| Raymond James & Associates | 5,005 | $301.6K | 0.00% | +5,005 | New |
| Brighton Jones LLC | 5,006 | $301.6K | 0.02% | +5+0.1% | Added |
| Axq Capital, LP | 5,125 | $308.8K | 0.21% | +5,125 | New |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 5,386 | $324.5K | 0.00% | +1,178+28.0% | Added |
| Glenmede Trust Co NA | 5,392 | $324.9K | 0.00% | +5,392 | New |
| Squarepoint Ops LLC | 5,516 | $332.3K | 0.00% | +5,516 | New |
| Los Angeles Capital Management LLC | 5,576 | $336.0K | 0.00% | −530−8.7% | Reduced |
| Snowden Capital Advisors LLC | 6,098 | $367.4K | 0.02% | +6,098 | New |
| Amalgamated Bank | 6,126 | $369.0K | 0.00% | +406+7.1% | Added |
| Public Employees Retirement Association of Colorado | 6,552 | $395.0K | 0.00% | 00.0% | Unchanged |
| Allspring Global Investments Holdings, LLC | 6,984 | $420.8K | 0.00% | −5,773−45.3% | Reduced |
| Advisory Research Inc | 7,120 | $429.0K | 0.04% | +7,120 | New |
| Kiwi Wealth Investments Limited Partnership | 7,121 | $429.0K | 0.03% | −9,779−57.9% | Reduced |
| Qube Research & Technologies Ltd | 7,200 | $433.8K | 0.00% | +7,200 | New |
| E Fund Management Co., Ltd. | 7,243 | $436.0K | 0.04% | −86−1.2% | Reduced |
| HighMark Wealth Management LLC | 7,527 | $453.5K | 0.34% | +6,352+540.6% | Added |
| US Bancorp | 8,118 | $489.1K | 0.00% | +7,357+966.8% | Added |
| Campbell & CO Investment Adviser LLC | 8,527 | $513.8K | 0.12% | +104+1.2% | Added |
| ProShare Advisors LLC | 8,719 | $525.3K | 0.00% | +861+11.0% | Added |
| Arizona State Retirement System | 9,268 | $558.4K | 0.01% | +364+4.1% | Added |
| Acuta Capital Partners, LLC | 9,300 | $560.3K | 0.34% | +9,300 | New |
| Victory Capital Management Inc | 9,418 | $567.4K | 0.00% | −5,157−35.4% | Reduced |
| Teacher Retirement System of Texas | 9,738 | $587.0K | 0.00% | −944−8.8% | Reduced |
| Aquatic Capital Management LLC | 9,900 | $596.0K | 0.04% | +9,900 | New |
| Wells Fargo & Company | 10,665 | $642.6K | 0.00% | −1,834−14.7% | Reduced |
| Susquehanna International Group, LLP | 10,718 | $645.8K | 0.00% | −87,988−89.1% | Reduced |
| State Board of Administration of Florida Retirement System | 11,286 | $680.0K | 0.00% | −4,780−29.8% | 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 |
| Occudo Quantitative Strategies LP | 12,965 | $781.1K | 0.09% | −25,924−66.7% | Reduced |
| DekaBank Deutsche Girozentrale | 14,000 | $825.0K | 0.00% | 00.0% | Unchanged |
| HighVista Strategies LLC | 14,572 | $878.0K | 0.52% | +14,572 | New |
| Neo Ivy Capital Management | 15,120 | $911.0K | 0.62% | +15,120 | New |
| Ergoteles LLC | 15,525 | $935.4K | 0.03% | +11,722+308.2% | Added |