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 2023
Institutional positions in Prothena Corp Public Ltd Co as of Jun 30, 2023. 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
- 196
- +4 vs. Q1 2023
- Shares held
- 52.0M
- +214.3K (+0.4%) vs. Q1 2023
- Total value
- $3.54B
- +$1.03B (+41.0%) vs. Q1 2023
- New holders
- 30
- 72 more added
- Sold out
- 26
- 58 more reduced
Compare with Q1 2023: 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 2023
Shares, value and share of portfolio for each institution holding Prothena Corp Public Ltd Co; share changes are against Q1 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Profund Advisors LLC | 22,049 | $1.51M | 0.08% | −4,482−16.9% | Reduced |
| Advisory Research Inc | 22,039 | $1.50M | 0.19% | +14,888+208.2% | Added |
| MetLife Investment Management | 21,852 | $1.49M | 0.01% | +1,302+6.3% | Added |
| Franklin Resources Inc | 20,739 | $1.42M | 0.00% | +20,739 | New |
| Citadel Advisors LLC | 20,442 | $1.40M | 0.00% | −17,259−45.8% | Reduced |
| American International Group, Inc. | 19,954 | $1.36M | 0.01% | +1,069+5.7% | Added |
| Deutsche Bank AG | 19,756 | $1.35M | 0.00% | −7,595−27.8% | Reduced |
| AQR Capital Management LLC | 19,286 | $1.32M | 0.00% | +11,995+164.5% | Added |
| Allianz Asset Management GmbH | 15,800 | $1.08M | 0.00% | +10,800+216.0% | Added |
| Guggenheim Capital LLC | 15,180 | $1.04M | 0.01% | −2,210−12.7% | Reduced |
| DekaBank Deutsche Girozentrale | 14,000 | $962.0K | 0.00% | 00.0% | Unchanged |
| Rockefeller Capital Management L.P. | 13,661 | $932.8K | 0.00% | +1,662+13.9% | Added |
| Ergoteles LLC | 13,276 | $906.5K | 0.04% | −13,635−50.7% | Reduced |
| STRS Ohio | 13,000 | $887.0K | 0.00% | +500+4.0% | Added |
| Ameriprise Financial Inc | 11,916 | $813.6K | 0.00% | −96−0.8% | Reduced |
| Point72 Middle East FZE | 11,788 | $804.9K | 0.04% | +11,033+1,461.3% | Added |
| Harvest Investment Services, LLC | 11,772 | $803.8K | 0.46% | +951+8.8% | Added |
| State Board of Administration of Florida Retirement System | 11,766 | $803.4K | 0.00% | +480+4.3% | Added |
| Martingale Asset Management L P | 11,318 | $772.8K | 0.02% | +11,318 | New |
| Teachers Retirement System of the State of Kentucky | 11,144 | $761.0K | 0.01% | +11,144 | New |
| Arizona State Retirement System | 11,081 | $756.6K | 0.01% | +1,269+12.9% | Added |
| Marshall Wace, LLP | 10,869 | $742.1K | 0.00% | +10,869 | New |
| Teacher Retirement System of Texas | 10,702 | $731.0K | 0.00% | +270+2.6% | Added |
| ProShare Advisors LLC | 8,806 | $601.3K | 0.00% | +556+6.7% | Added |
| Royal Bank of Canada | 8,173 | $558.0K | 0.00% | −1,570−16.1% | Reduced |
| Oppenheimer & Co Inc | 7,613 | $519.8K | 0.01% | +343+4.7% | Added |
| Corton Capital Inc. | 7,531 | $514.2K | 0.24% | +3,129+71.1% | Added |
| US Bancorp | 7,438 | $507.9K | 0.00% | −472−6.0% | Reduced |
| HighMark Wealth Management LLC | 7,352 | $502.0K | 0.38% | 00.0% | Unchanged |
| SEI Investments Co | 7,102 | $484.9K | 0.00% | +1,091+18.2% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 6,667 | $455.2K | 0.00% | +862+14.8% | Added |
| Public Employees Retirement Association of Colorado | 6,552 | $447.0K | 0.00% | 00.0% | Unchanged |
| E Fund Management Co., Ltd. | 6,427 | $439.0K | 0.03% | −1,622−20.2% | Reduced |
| Parallax Volatility Advisers, L.P. | 6,425 | $438.7K | 0.02% | +6,425 | New |
| HighVista Strategies LLC | 6,406 | $437.4K | 0.20% | −8,166−56.0% | Reduced |
| Amalgamated Bank | 6,189 | $423.0K | 0.00% | +775+14.3% | Added |
| Snowden Capital Advisors LLC | 6,073 | $414.7K | 0.01% | 00.0% | Unchanged |
| Walleye Trading LLC | 5,357 | $365.8K | 0.02% | −1,631−23.3% | Reduced |
| Pictet Asset Management SA | 5,057 | $345.3K | 0.00% | +5,057 | New |
| Moran Wealth Management, LLC | 4,509 | $307.9K | 0.01% | +4,509 | New |
| Captrust Financial Advisors | 4,482 | $306.0K | 0.00% | −68−1.5% | Reduced |
| Raymond James & Associates | 4,117 | $281.1K | 0.00% | −2,100−33.8% | Reduced |
| Schroder Investment Management Group | 3,998 | $279.9K | 0.00% | +3,998 | New |
| Delphia (USA) Inc. | 3,883 | $265.1K | 0.42% | +3,883 | New |
| HighTower Advisors, LLC | 3,781 | $263.0K | 0.00% | +3,781 | New |
| NinePointTwo Capital | 3,741 | $255.0K | 0.10% | −1,997−34.8% | Reduced |
| Engineers Gate Manager LP | 3,701 | $252.7K | 0.01% | −10,720−74.3% | Reduced |
| Glenmede Trust Co NA | 5,069 | $245.7K | 0.00% | 00.0% | Unchanged |
| Wetherby Asset Management Inc | 3,570 | $243.8K | 0.01% | +3,570 | New |
| SG Americas Securities, LLC | 3,555 | $243.0K | 0.00% | −105,846−96.8% | Reduced |
| Ameritas Investment Partners, Inc. | 3,423 | $233.7K | 0.01% | +281+8.9% | Added |
| Cubist Systematic Strategies, LLC | 3,159 | $215.7K | 0.00% | −37,741−92.3% | Reduced |
| Advisor Group Holdings, Inc. | 3,117 | $212.8K | 0.00% | +2,297+280.1% | Added |
| Penserra Capital Management LLC | 3,104 | $211.0K | 0.00% | +3,104 | New |
| Beirne Wealth Consulting Services, LLC | 3,000 | $204.8K | 0.16% | +3,000 | New |
| Tower Research Capital LLC (TRC) | 2,535 | $173.1K | 0.01% | +732+40.6% | Added |
| Metropolitan Life Insurance Co | 2,264 | $154.6K | 0.01% | +2,264 | New |
| Allspring Global Investments Holdings, LLC | 1,956 | $133.6K | 0.00% | −3,070−61.1% | Reduced |
| Virtus ETF Advisers LLC | 1,513 | $103.3K | 0.06% | −230−13.2% | Reduced |
| Nisa Investment Advisors, LLC | 1,490 | $101.7K | 0.00% | +520+53.6% | Added |
| Jefferies Financial Group Inc. | 845 | $57.7K | 0.00% | +845 | New |
| China Universal Asset Management Co., Ltd. | 691 | $47.2K | 0.01% | −21−2.9% | Reduced |
| West Tower Group, LLC | 659 | $45.0K | 0.03% | +659 | New |
| The PNC Financial Services Group, Inc. | 422 | $28.8K | 0.00% | +6+1.4% | Added |
| First Manhattan Co | 374 | $25.5K | 0.00% | 00.0% | Unchanged |
| EverSource Wealth Advisors, LLC | 309 | $21.1K | 0.00% | +309 | New |
| Signaturefd, LLC | 301 | $20.6K | 0.00% | +6+2.0% | Added |
| Byrne Asset Management LLC | 260 | $18.0K | 0.01% | −60−18.8% | Reduced |
| Asset Dedication, LLC | 184 | $13.0K | 0.00% | 00.0% | Unchanged |
| Daiwa Securities Group Inc. | 195 | $13.0K | 0.00% | 00.0% | Unchanged |
| Kelly Financial Services LLC | 182 | $12.4K | 0.01% | 00.0% | Unchanged |
| Sittner & Nelson, LLC | 155 | $10.6K | 0.01% | 00.0% | Unchanged |
| GWM Advisors LLC | 150 | $10.2K | 0.00% | +150 | New |
| Focused Wealth Management, Inc | 129 | $8.81K | 0.00% | 00.0% | Unchanged |
| Albion Financial Group | 125 | $8.54K | 0.00% | 00.0% | Unchanged |
| Truvestments Capital LLC | 108 | $7.37K | 0.00% | 00.0% | Unchanged |
| Harbor Investment Advisory, LLC | 100 | $6.83K | 0.00% | 00.0% | Unchanged |
| Gould Capital, LLC | 100 | $6.83K | 0.01% | 00.0% | Unchanged |
| Harbor Capital Advisors, Inc. | 53 | $3.62K | 0.00% | +53 | New |
| CWM, LLC | 34 | $2.00K | 0.00% | −2−5.6% | Reduced |
| Farther Finance Advisors, LLC | 26 | $1.77K | 0.00% | +8+44.4% | Added |
| Allworth Financial LP | 23 | $1.57K | 0.00% | 00.0% | Unchanged |
| Lindbrook Capital, LLC | 22 | $1.50K | 0.00% | +6+37.5% | Added |
| Quadrant Capital Group LLC | 19 | $1.30K | 0.00% | 00.0% | Unchanged |
| CVA Family Office, LLC | 14 | $956 | 0.00% | +14 | New |
| Blue Bell Private Wealth Management, LLC | 12 | $819 | 0.00% | 00.0% | Unchanged |
| Lowe Wealth Advisors, LLC | 10 | $683 | 0.00% | 00.0% | Unchanged |
| Versant Capital Management, Inc | 6 | $410 | 0.00% | +6 | New |
| Harbour Investments, Inc. | 5 | $341 | 0.00% | 00.0% | Unchanged |
| JFS Wealth Advisors, LLC | 4 | $274 | 0.00% | −2−33.3% | Reduced |
| Huntington National Bank | 4 | $273 | 0.00% | 00.0% | Unchanged |
| Whittier Trust Co of Nevada Inc | 3 | $204 | 0.00% | 00.0% | Unchanged |
| Coastal Capital Group, Inc. | 2 | $137 | 0.00% | 00.0% | Unchanged |
| Disciplined Investments, LLC | 2 | $137 | 0.00% | 00.0% | Unchanged |
| Gradient Investments LLC | 1 | $68 | 0.00% | +1 | New |
| Covestor Ltd | 3 | $0 | 0.00% | 00.0% | Unchanged |
| Squarepoint Ops LLC | 0 | $0 | 0.00% | −78,309−100.0% | Sold out |
| Trexquant Investment LP | 0 | $0 | 0.00% | −42,200−100.0% | Sold out |
| Tudor Investment Corp Et Al | 0 | $0 | 0.00% | −29,008−100.0% | Sold out |
| Canada Pension Plan Investment Board | 0 | $0 | 0.00% | −26,800−100.0% | Sold out |