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 2024
Institutional positions in Prothena Corp Public Ltd Co as of Jun 30, 2024. 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
- 160
- −7 vs. Q1 2024
- Shares held
- 50.8M
- −2.61M (−4.9%) vs. Q1 2024
- Total value
- $1.05B
- −$275.2M (−20.8%) vs. Q1 2024
- New holders
- 27
- 58 more added
- Sold out
- 34
- 42 more reduced
2 institutions that held it in Q1 2024 haven't filed for Q2 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2024: 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 2024
Shares, value and share of portfolio for each institution holding Prothena Corp Public Ltd Co; share changes are against Q1 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Royal Bank of Canada | 8,704 | $180.0K | 0.00% | +3,190+57.9% | Added |
| Tower Research Capital LLC (TRC) | 6,990 | $144.3K | 0.00% | +6,406+1,096.9% | Added |
| Public Employees Retirement Association of Colorado | 6,552 | $135.0K | 0.00% | 00.0% | Unchanged |
| China Universal Asset Management Co., Ltd. | 6,318 | $130.4K | 0.02% | −4,042−39.0% | Reduced |
| Group One Trading, L.P. | 6,233 | $128.6K | 0.00% | +3,937+171.5% | Added |
| ADAR1 Capital Management, LLC | 5,988 | $123.6K | 0.02% | 00.0% | Unchanged |
| Catalyst Funds Management Pty Ltd | 5,100 | $105.3K | 0.03% | +5,100 | New |
| Ameritas Investment Partners, Inc. | 4,368 | $90.2K | 0.00% | 00.0% | Unchanged |
| Virtus ETF Advisers LLC | 4,236 | $87.4K | 0.04% | +2,013+90.6% | Added |
| Simplex Trading, LLC | 2,267 | $46.0K | 0.00% | −4,951−68.6% | Reduced |
| Advisor Group Holdings, Inc. | 1,993 | $41.1K | 0.00% | −83−4.0% | Reduced |
| The PNC Financial Services Group, Inc. | 1,954 | $40.3K | 0.00% | +427+28.0% | Added |
| Russell Investments Group, Ltd. | 1,751 | $36.1K | 0.00% | +1,621+1,246.9% | Added |
| Allspring Global Investments Holdings, LLC | 1,735 | $35.8K | 0.00% | −389−18.3% | Reduced |
| Headlands Technologies LLC | 1,675 | $34.6K | 0.00% | −2,206−56.8% | Reduced |
| Mirae Asset Global Investments Co., Ltd. | 1,605 | $33.0K | 0.00% | −26,307−94.2% | Reduced |
| Amalgamated Bank | 1,440 | $30.0K | 0.00% | 00.0% | Unchanged |
| Signaturefd, LLC | 1,337 | $27.6K | 0.00% | +863+182.1% | Added |
| US Bancorp | 1,111 | $22.9K | 0.00% | −21−1.9% | Reduced |
| Nisa Investment Advisors, LLC | 1,041 | $21.5K | 0.00% | +91+9.6% | Added |
| Lindbrook Capital, LLC | 861 | $17.8K | 0.00% | +720+510.6% | Added |
| CWM, LLC | 798 | $16.0K | 0.00% | −297−27.1% | Reduced |
| Byrne Asset Management LLC | 720 | $14.8K | 0.01% | +40+5.9% | Added |
| Pacer Advisors, Inc. | 552 | $11.4K | 0.00% | −858−60.9% | Reduced |
| Clear Street Markets LLC | 500 | $10.0K | 0.00% | 00.0% | Unchanged |
| Smartleaf Asset Management LLC | 400 | $8.21K | 0.00% | +400 | New |
| Quadrant Capital Group LLC | 386 | $7.97K | 0.00% | −574−59.8% | Reduced |
| Farther Finance Advisors, LLC | 375 | $7.68K | 0.00% | +7+1.9% | Added |
| GAMMA Investing LLC | 367 | $7.58K | 0.00% | +309+532.8% | Added |
| Manchester Capital Management LLC | 250 | $5.16K | 0.00% | +250 | New |
| Ronald Blue Trust, Inc. | 170 | $4.21K | 0.00% | +170 | New |
| MeadowBrook Investment Advisors LLC | 200 | $4.13K | 0.00% | 00.0% | Unchanged |
| Daiwa Securities Group Inc. | 195 | $4.00K | 0.00% | 00.0% | Unchanged |
| Asset Dedication, LLC | 184 | $3.80K | 0.00% | 00.0% | Unchanged |
| Kelly Financial Services LLC | 182 | $3.76K | 0.00% | 00.0% | Unchanged |
| Sittner & Nelson, LLC | 155 | $3.20K | 0.00% | 00.0% | Unchanged |
| Albion Financial Group | 125 | $2.58K | 0.00% | 00.0% | Unchanged |
| Mather Group, LLC. | 100 | $2.48K | 0.00% | +100 | New |
| EverSource Wealth Advisors, LLC | 95 | $2.21K | 0.00% | +1+1.1% | Added |
| Harbor Investment Advisory, LLC | 100 | $2.06K | 0.00% | 00.0% | Unchanged |
| Gould Capital, LLC | 100 | $2.06K | 0.00% | 00.0% | Unchanged |
| Versant Capital Management, Inc | 54 | $1.11K | 0.00% | +54 | New |
| CIBC Private Wealth Group, LLC | 49 | $989 | 0.00% | 00.0% | Unchanged |
| Allworth Financial LP | 32 | $755 | 0.00% | −55−63.2% | Reduced |
| Parallel Advisors, LLC | 29 | $599 | 0.00% | +17+141.7% | Added |
| Massmutual Trust Co FSB | 27 | $557 | 0.00% | +27 | New |
| Private Wealth Management Group, LLC | 26 | $537 | 0.00% | +10+62.5% | Added |
| Cornerstone Planning Group LLC | 27 | $535 | 0.00% | +27 | New |
| POM Investment Strategies, LLC | 24 | $495 | 0.00% | 00.0% | Unchanged |
| CoreCap Advisors, LLC | 23 | $475 | 0.00% | 00.0% | Unchanged |
| Key Financial Inc | 12 | $248 | 0.00% | +12 | New |
| Lowe Wealth Advisors, LLC | 10 | $206 | 0.00% | 00.0% | Unchanged |
| Rothschild Investment LLC | 10 | $206 | 0.00% | +5+100.0% | Added |
| Global Retirement Partners, LLC | 7 | $144 | 0.00% | +7 | New |
| Register Financial Advisors LLC | 4 | $83 | 0.00% | 00.0% | Unchanged |
| Clearstead Advisors, LLC | 4 | $83 | 0.00% | +4 | New |
| Whittier Trust Co of Nevada Inc | 3 | $61 | 0.00% | 00.0% | Unchanged |
| Cypress Capital, LLC | 2 | $41 | 0.00% | +2 | New |
| Harbour Investments, Inc. | 1 | $21 | 0.00% | 00.0% | Unchanged |
| Covestor Ltd | 4 | $0 | 0.00% | 00.0% | Unchanged |
| First Light Asset Management, LLC | 0 | $0 | 0.00% | −444,953−100.0% | Sold out |
| Qube Research & Technologies Ltd | 0 | $0 | 0.00% | −195,446−100.0% | Sold out |
| Cubist Systematic Strategies, LLC | 0 | $0 | 0.00% | −135,321−100.0% | Sold out |
| Pier Capital, LLC | 0 | $0 | 0.00% | −57,020−100.0% | Sold out |
| Platinum Investment Management Ltd | 0 | $0 | 0.00% | −41,508−100.0% | Sold out |
| Seven Eight Capital, LP | 0 | $0 | 0.00% | −41,120−100.0% | Sold out |
| Fred Alger Management, LLC | 0 | $0 | 0.00% | −32,996−100.0% | Sold out |
| Bank of Montreal | 0 | $0 | 0.00% | −24,880−100.0% | Sold out |
| American International Group, Inc. | 0 | $0 | 0.00% | −20,795−100.0% | Sold out |
| New York Life Investment Management LLC | 0 | $0 | 0.00% | −14,407−100.0% | Sold out |
| E Fund Management Co., Ltd. | 0 | $0 | 0.00% | −14,340−100.0% | Sold out |
| Susquehanna Fundamental Investments, LLC | 0 | $0 | 0.00% | −13,818−100.0% | Sold out |
| Axq Capital, LP | 0 | $0 | 0.00% | −13,416−100.0% | Sold out |
| Principal Financial Group Inc | 0 | $0 | 0.00% | −11,737−100.0% | Sold out |
| ProShare Advisors LLC | 0 | $0 | 0.00% | −11,346−100.0% | Sold out |
| GTS Securities LLC | 0 | $0 | 0.00% | −10,944−100.0% | Sold out |
| Aigen Investment Management, LP | 0 | $0 | 0.00% | −9,901−100.0% | Sold out |
| Atom Investors LP | 0 | $0 | 0.00% | −9,303−100.0% | Sold out |
| Teacher Retirement System of Texas | 0 | $0 | 0.00% | −8,956−100.0% | Sold out |
| Point72 (DIFC) Ltd | 0 | $0 | 0.00% | −8,918−100.0% | Sold out |
| Two Sigma Advisers, LP | 0 | $0 | 0.00% | −8,300−100.0% | Sold out |
| Creative Planning | 0 | $0 | 0.00% | −8,260−100.0% | Sold out |
| Metropolitan Life Insurance Co | 0 | $0 | 0.00% | −2,317−100.0% | Sold out |
| KBC Group NV | 0 | $0 | 0.00% | −1,581−100.0% | Sold out |
| Quantbot Technologies LP | 0 | $0 | 0.00% | −1,300−100.0% | Sold out |
| Aquatic Capital Management LLC | 0 | $0 | 0.00% | −1,200−100.0% | Sold out |
| Riverview Trust Co | 0 | $0 | 0.00% | −659−100.0% | Sold out |
| Huntington National Bank | 0 | $0 | 0.00% | −198−100.0% | Sold out |
| Truvestments Capital LLC | 0 | $0 | 0.00% | −108−100.0% | Sold out |
| Caldwell Trust Co | 0 | $0 | 0.00% | −51−100.0% | Sold out |
| GWM Advisors LLC | 0 | $0 | 0.00% | −17−100.0% | Sold out |
| Nelson, Van Denburg & Campbell Wealth Management Group, LLC | 0 | $0 | 0.00% | −9−100.0% | Sold out |
| First Manhattan Co | 0 | $0 | 0.00% | −3−100.0% | Sold out |
| JFS Wealth Advisors, LLC | 0 | $0 | 0.00% | −2−100.0% | Sold out |
| Credit Suisse AG | – | – | – | – | Not filed |
| Cutler Group LP | – | – | – | – | Not filed |