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 2021
Institutional positions in Prothena Corp Public Ltd Co as of Jun 30, 2021. 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
- 156
- +10 vs. Q1 2021
- Shares held
- 40.4M
- +429.9K (+1.1%) vs. Q1 2021
- Total value
- $2.08B
- +$1.07B (+106.8%) vs. Q1 2021
- New holders
- 34
- 50 more added
- Sold out
- 24
- 39 more reduced
Compare with Q1 2021: 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 2021
Shares, value and share of portfolio for each institution holding Prothena Corp Public Ltd Co; share changes are against Q1 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Harbour Investments, Inc. | 4 | $0 | 0.00% | 00.0% | Unchanged |
| Whittier Trust Co of Nevada Inc | 3 | $0 | 0.00% | 00.0% | Unchanged |
| Lowe Wealth Advisors, LLC | 1 | $0 | 0.00% | 00.0% | Unchanged |
| NEXT Financial Group, Inc | 3 | $0 | 0.00% | −6−66.7% | Reduced |
| Coastal Capital Group, Inc. | 2 | $0 | 0.00% | 00.0% | Unchanged |
| TD Capital Management LLC | 1 | $0 | 0.00% | +1 | New |
| American Portfolios Advisors | 2 | $103 | 0.00% | 00.0% | Unchanged |
| Kelly Financial Services LLC | 9,357 | $182 | 0.01% | +9,175+5,041.2% | Added |
| TD Private Client Wealth LLC | 12 | $617 | 0.00% | +12 | New |
| Steward Partners Investment Advisory, LLC | 25 | $1.00K | 0.00% | 00.0% | Unchanged |
| Allworth Financial LP | 12 | $1.00K | 0.00% | 00.0% | Unchanged |
| IFP Advisors, Inc | 20 | $1.00K | 0.00% | +1+5.3% | Added |
| Geneos Wealth Management Inc. | 26 | $1.00K | 0.00% | +26 | New |
| CWM, LLC | 32 | $2.00K | 0.00% | 00.0% | Unchanged |
| Bessemer Group Inc | 63 | $3.00K | 0.00% | 00.0% | Unchanged |
| Huntington National Bank | 73 | $4.00K | 0.00% | 00.0% | Unchanged |
| Rockefeller Capital Management L.P. | 85 | $4.00K | 0.00% | 00.0% | Unchanged |
| Harbor Investment Advisory, LLC | 100 | $5.00K | 0.00% | 00.0% | Unchanged |
| Daiwa Securities Group Inc. | 88 | $5.00K | 0.00% | 00.0% | Unchanged |
| TCI Wealth Advisors, Inc. | 94 | $5.00K | 0.00% | +94 | New |
| Rockbridge Investment Management, LCC | 100 | $5.00K | 0.00% | +100 | New |
| Advisor Group Holdings, Inc. | 117 | $6.00K | 0.00% | −39−25.0% | Reduced |
| Albion Financial Group | 125 | $6.00K | 0.00% | +125 | New |
| Sittner & Nelson, LLC | 155 | $8.00K | 0.01% | 00.0% | Unchanged |
| Asset Dedication, LLC | 184 | $9.00K | 0.00% | 00.0% | Unchanged |
| Whittier Trust Co | 220 | $11.0K | 0.00% | 00.0% | Unchanged |
| Tarbox Family Office, Inc. | 295 | $15.0K | 0.00% | +295 | New |
| Hall Laurie J Trustee | 330 | $17.0K | 0.01% | 00.0% | Unchanged |
| Federation des caisses Desjardins du Quebec | 376 | $19.3K | 0.00% | 00.0% | Unchanged |
| The PNC Financial Services Group, Inc. | 416 | $21.0K | 0.00% | 00.0% | Unchanged |
| Brewin Dolphin Ltd | 529 | $27.2K | 0.00% | 00.0% | Unchanged |
| Simplex Trading, LLC | 562 | $28.0K | 0.00% | −8,175−93.6% | Reduced |
| Signaturefd, LLC | 628 | $32.0K | 0.00% | −38−5.7% | Reduced |
| Captrust Financial Advisors | 657 | $34.0K | 0.00% | −27−3.9% | Reduced |
| Mirae Asset Global Investments Co., Ltd. | 718 | $37.0K | 0.00% | +718 | New |
| Penserra Capital Management LLC | 1,005 | $51.0K | 0.00% | +105+11.7% | Added |
| Nisa Investment Advisors, LLC | 1,030 | $53.0K | 0.00% | +530+106.0% | Added |
| STRS Ohio | 1,100 | $56.0K | 0.00% | +1,100 | New |
| BNP Paribas Arbitrage, SA | 1,246 | $64.1K | 0.00% | −16,350−92.9% | Reduced |
| US Bancorp | 1,290 | $66.0K | 0.00% | 00.0% | Unchanged |
| Parallel Advisors, LLC | 1,595 | $82.0K | 0.00% | +600+60.3% | Added |
| Meeder Asset Management Inc | 1,594 | $82.0K | 0.00% | +1,594 | New |
| UBS Group AG | 1,662 | $85.0K | 0.00% | −22,424−93.1% | Reduced |
| Brewin Dolphin Wealth Management Ltd | 2,009 | $103.3K | 0.01% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 2,068 | $106.0K | 0.00% | +140+7.3% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 2,087 | $107.0K | 0.00% | 00.0% | Unchanged |
| HighMark Wealth Management LLC | 2,104 | $108.0K | 0.08% | −465−18.1% | Reduced |
| Fieldpoint Private Securities, LLC | 2,000 | $116.0K | 0.03% | 00.0% | Unchanged |
| Ameritas Investment Partners, Inc. | 2,577 | $132.0K | 0.00% | 00.0% | Unchanged |
| Point72 Hong Kong Ltd | 3,183 | $164.0K | 0.01% | +2,738+615.3% | Added |
| Panagora Asset Management Inc | 3,323 | $171.0K | 0.00% | −2,528−43.2% | Reduced |
| Raymond James & Associates | 3,900 | $200.0K | 0.00% | +3,900 | New |
| Brighton Jones LLC | 4,000 | $206.0K | 0.01% | +4,000 | New |
| Vident Investment Advisory, LLC | 4,389 | $226.0K | 0.01% | +4,389 | New |
| Focused Wealth Management, Inc | 4,654 | $239.0K | 0.04% | −4,525−49.3% | Reduced |
| Wetherby Asset Management Inc | 4,647 | $239.0K | 0.01% | +4,647 | New |
| Virtus ETF Advisers LLC | 4,694 | $241.0K | 0.10% | −18,904−80.1% | Reduced |
| AQR Capital Management LLC | 4,917 | $253.0K | 0.00% | +4,917 | New |
| Maven Securities LTD | 5,000 | $257.0K | 0.03% | +5,000 | New |
| State of Wyoming | 5,248 | $270.0K | 0.17% | +5,248 | New |
| Gotham Asset Management, LLC | 5,337 | $274.0K | 0.01% | +5,337 | New |
| Hunter Perkins Capital Management, LLC | 5,800 | $298.0K | 0.06% | +5,800 | New |
| Amalgamated Bank | 6,060 | $312.0K | 0.00% | +6,060 | New |
| Trexquant Investment LP | 7,326 | $377.0K | 0.03% | +7,326 | New |
| Arizona State Retirement System | 7,592 | $390.0K | 0.00% | +7,592 | New |
| Old Well Partners, LLC | 7,924 | $407.0K | 0.18% | −2,267−22.2% | Reduced |
| Legal & General Group Plc | 7,987 | $410.0K | 0.00% | +859+12.1% | Added |
| King Wealth | 8,000 | $411.0K | 0.08% | 00.0% | Unchanged |
| Barclays PLC | 8,360 | $429.0K | 0.00% | −21,137−71.7% | Reduced |
| SG Americas Securities, LLC | 10,020 | $515.0K | 0.00% | −520−4.9% | Reduced |
| Engineers Gate Manager LP | 10,810 | $556.0K | 0.04% | +10,810 | New |
| Public Employees Retirement Association of Colorado | 10,984 | $565.0K | 0.00% | 00.0% | Unchanged |
| Virtu Financial LLC | 11,174 | $574.0K | 0.06% | +11,174 | New |
| DekaBank Deutsche Girozentrale | 12,350 | $586.0K | 0.00% | 00.0% | Unchanged |
| Susquehanna International Group, LLP | 12,395 | $637.0K | 0.00% | +3,288+36.1% | Added |
| MetLife Investment Management | 12,610 | $648.3K | 0.01% | 00.0% | Unchanged |
| Virginia Retirement Systems Et Al | 13,400 | $689.0K | 0.01% | −700−5.0% | Reduced |
| Voya Investment Management LLC | 13,485 | $693.0K | 0.00% | −352−2.5% | Reduced |
| Wells Fargo & Company | 15,116 | $777.0K | 0.00% | −7,863−34.2% | Reduced |
| JPMorgan Chase & Co | 15,328 | $787.0K | 0.00% | +3,669+31.5% | Added |
| State Board of Administration of Florida Retirement System | 16,031 | $824.0K | 0.00% | +1,180+7.9% | Added |
| Bank of America Corp | 16,143 | $829.0K | 0.00% | −31,754−66.3% | Reduced |
| ProShare Advisors LLC | 16,785 | $863.0K | 0.00% | +3,030+22.0% | Added |
| Ensign Peak Advisors, Inc | 17,628 | $906.0K | 0.00% | 00.0% | Unchanged |
| Manufacturers Life Insurance Company, The | 18,654 | $959.0K | 0.00% | +1,429+8.3% | Added |
| American International Group, Inc. | 19,107 | $982.0K | 0.00% | +1,175+6.6% | Added |
| D. E. Shaw & Co., Inc. | 20,295 | $1.04M | 0.00% | −39,003−65.8% | Reduced |
| Deutsche Bank AG | 21,612 | $1.11M | 0.00% | +1,594+8.0% | Added |
| Credit Suisse AG | 22,429 | $1.15M | 0.00% | +2,974+15.3% | Added |
| Wellington Management Group LLP | 23,821 | $1.22M | 0.00% | +3,232+15.7% | Added |
| Edgewood Management LLC | 25,000 | $1.28M | 0.00% | 00.0% | Unchanged |
| Squarepoint Ops LLC | 25,886 | $1.33M | 0.01% | +11,650+81.8% | Added |
| Cubist Systematic Strategies, LLC | 27,530 | $1.42M | 0.02% | +10,309+59.9% | Added |
| ClariVest Asset Management LLC | 28,733 | $1.48M | 0.05% | −90.0% | Reduced |
| New York State Common Retirement Fund | 30,110 | $1.55M | 0.00% | +2,341+8.4% | Added |
| Susquehanna Fundamental Investments, LLC | 30,150 | $1.55M | 0.03% | +1,470+5.1% | Added |
| Birchview Capital, LP | 30,247 | $1.55M | 0.93% | +30,247 | New |
| Principal Financial Group Inc | 31,529 | $1.62M | 0.00% | +4,484+16.6% | Added |
| New York Life Investments Alternatives | 32,104 | $1.65M | 1.11% | −14,084−30.5% | Reduced |
| Rafferty Asset Management, LLC | 34,176 | $1.76M | 0.01% | −6,902−16.8% | Reduced |