Who owns Prothena?
- Ticker: PRTA
- CUSIP Number: G72800108
Tip: Access positions for across all investors
Analyze quarterly positions in Prothena with up to 7 years of data, all consolidated into one spreadsheet
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Top investors of Prothena stock
Who bought or sold Prothena this quarter?
| Fund or Company Name | Shares Held | Valued At | Change in Shares | As Of | Actions |
|---|---|---|---|---|---|
| FMR | 7.2M | $71M | -5% | Jun 2026 |
|
| Rubric Capital Management | 5.0M | $49M | 0% | Jun 2026 |
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| BlackRock | 4.9M | $48M | 5% | Jun 2026 |
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| State Street Corporation | 2.4M | $23M | 23% | Jun 2026 |
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| Acadian Asset Management | 2.0M | $20M | 30% | Jun 2026 |
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| Vanguard Portfolio Management | 1.7M | $16M | 14% | Jun 2026 |
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| D. E. Shaw & Co | 1.6M | $16M | -9% | Jun 2026 |
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| ADAR1 Capital Management | 1.6M | $15M | -2% | Jun 2026 |
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| Two Sigma Investments | 1.3M | $12M | 5% | Jun 2026 |
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| Palo Alto Investors | 1.1M | $11M | -5% | Jun 2026 |
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| Geode Capital Management | 1.1M | $11M | 3% | Jun 2026 |
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| Federated Investors | 1.1M | $11M | 2% | Jun 2026 |
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| Goldman Sachs Group | 980k | $9.6M | 20% | Jun 2026 |
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| Jacobs Levy Equity Management | 966k | $9.5M | -1% | Jun 2026 |
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| Dimensional Fund Advisors | 906k | $8.9M | 16% | Jun 2026 |
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| Qube Research & Technologies | 791k | $7.7M | 29% | Jun 2026 |
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| Renaissance Technologies | 698k | $6.8M | 15% | Jun 2026 |
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| Man Group | 678k | $6.6M | 78% | Jun 2026 |
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| Mariner Wealth Advisors | 625k | $6.1M | 11% | Jun 2026 |
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| Citadel Advisors | 598k | $5.9M | 4% | Jun 2026 |
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| Nuveen | 557k | $5.5M | -27% | Jun 2026 |
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| Susquehanna International | 487k | $4.8M | 165% | Jun 2026 |
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| Vanguard Capital Management | 480k | $4.7M | -1% | Jun 2026 |
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| Northern Trust | 457k | $4.5M | 24% | Jun 2026 |
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| Birchview Capital | 449k | $4.4M | 0% | Jun 2026 |
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| Rangeley Capital | 417k | $4.1M | -7% | Jun 2026 |
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| Charles Schwab Investment Management | 356k | $3.5M | 0% | Jun 2026 |
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| Sixth Street Partners Management Company | 356k | $3.5M | 100% | Jun 2026 |
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| Monimus Capital Management | 329k | $3.2M | -32% | Jun 2026 |
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| Bnp Paribas Arbitrage, Snc | 316k | $3.1M | -26% | Jun 2026 |
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| AQR Capital Management | 303k | $3.0M | 48% | Jun 2026 |
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| Penbrook Managment | 272k | $2.3M | 0% | Sep 2026 |
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| Vanguard Fiduciary Trust | 259k | $2.5M | 2% | Jun 2026 |
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| UBS Group | 241k | $2.4M | -27% | Jun 2026 |
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| Mackenzie Financial | 240k | $2.3M | 100% | Jun 2026 |
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| Squarepoint Ops | 224k | $2.2M | -3% | Jun 2026 |
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| Bank of America Corporation | 208k | $2.0M | -47% | Jun 2026 |
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| Focused Wealth Management | 207k | $2.0M | 0% | Jun 2026 |
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| Connor, Clark & Lunn Investment Management | 192k | $1.9M | 22% | Jun 2026 |
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| Marshall Wace | 191k | $1.9M | 328% | Jun 2026 |
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| Quantinno Capital Management | 158k | $1.6M | 10% | Jun 2026 |
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| Jane Street | 151k | $1.5M | -40% | Jun 2026 |
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| Millennium Management | 150k | $1.5M | 198% | Jun 2026 |
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| Diadema Partners | 150k | $1.5M | 100% | Jun 2026 |
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| Bank of New York Mellon | 134k | $1.3M | -2% | Jun 2026 |
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| Massachusetts Financial Services | 127k | $1.2M | -4% | Jun 2026 |
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| Russell Investments | 122k | $1.2M | 21% | Jun 2026 |
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| American Century Companies | 91k | $887k | 14% | Jun 2026 |
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| Ameriprise Financial | 87k | $854k | -2% | Jun 2026 |
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| XTX Topco | 86k | $839k | -7% | Jun 2026 |
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| Hennion & Walsh Asset Management | 84k | $707k | -7% | Sep 2026 |
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| Susquehanna Portfolio Strategies | 83k | $810k | 22% | Jun 2026 |
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| ExodusPoint Capital Management | 82k | $803k | 100% | Jun 2026 |
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| Martingale Asset Management | 79k | $772k | 14% | Jun 2026 |
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| Trexquant Investment | 77k | $751k | 213% | Jun 2026 |
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| DCF Advisers | 73k | $717k | 0% | Jun 2026 |
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| Invesco | 72k | $700k | 44% | Jun 2026 |
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| State of Wisconsin Investment Board | 70k | $689k | 100% | Jun 2026 |
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| Duncan Williams Asset Management | 70k | $688k | 0% | Jun 2026 |
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| Alliancebernstein | 69k | $673k | -1% | Jun 2026 |
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| Campbell & Co. Investment Adviser | 68k | $669k | -52% | Jun 2026 |
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| Creative Planning | 63k | $613k | -14% | Jun 2026 |
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| Gail Mannix | 62k | $515k | 6% | Sep 2026 |
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| Achmea Investment Management B.V. | 58k | $483k | 100% | Sep 2026 |
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| Rhumbline Advisers | 56k | $547k | 1% | Jun 2026 |
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| Schonfeld Strategic Advisors | 50k | $493k | 306% | Jun 2026 |
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| Edgewood Management | 50k | $490k | 0% | Jun 2026 |
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| Quinn Opportunity Partners | 50k | $490k | 0% | Jun 2026 |
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| Hsbc Holdings | 50k | $492k | -24% | Jun 2026 |
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| Wells Fargo & Company | 50k | $485k | 81% | Jun 2026 |
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| Seven Fleet Capital Management | 43k | $424k | 0% | Jun 2026 |
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| Deutsche Bank Aktiengesellschaft | 43k | $424k | 8% | Jun 2026 |
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| Ohio Pers | 42k | $413k | 0% | Jun 2026 |
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| Engineers Gate Manager | 41k | $404k | 100% | Jun 2026 |
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| Rafferty Asset Management | 40k | $396k | -24% | Jun 2026 |
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| Virtus Investment Advisers | 40k | $388k | 51% | Jun 2026 |
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| CCM Partners | 40k | $386k | 100% | Jun 2026 |
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| Persistent Asset Partners | 38k | $373k | 100% | Jun 2026 |
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| Barclays | 38k | $368k | -8% | Jun 2026 |
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| Sei Investments | 31k | $303k | 79% | Jun 2026 |
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| Winton Capital | 31k | $299k | -12% | Jun 2026 |
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| Rbf Capital | 29k | $286k | 0% | Jun 2026 |
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| Wintrust Financial Corporation | 29k | $281k | -3% | Jun 2026 |
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| Pnc Financial Services | 28k | $278k | 0% | Jun 2026 |
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| Jpmorgan Chase & Co | 27k | $266k | 100% | Jun 2026 |
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| MetLife Investment Advisors | 26k | $254k | 33% | Jun 2026 |
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| Chicago Partners Investment | 26k | $211k | 60% | Sep 2026 |
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| Aquatic Capital Management | 25k | $249k | 100% | Jun 2026 |
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| Covestor | 25k | $246k | -23% | Jun 2026 |
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| Mirae Asset Global Etfs Holdings | 25k | $251k | 2% | Jun 2026 |
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| Purkiss Capital Advisors | 25k | $246k | 0% | Jun 2026 |
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| Tudor Investment Corporation | 24k | $239k | 0% | Jun 2026 |
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| Canada Pension Plan Investment Board | 24k | $235k | 100% | Jun 2026 |
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| Envestnet Asset Management | 23k | $224k | 100% | Jun 2026 |
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| Joel R Mogy Investment Counsel | 21k | $174k | 0% | Sep 2026 |
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| Savant Capital Management | 20k | $190k | 93% | Jun 2026 |
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| Jones Financial Companies, L.L | 19k | $195k | 0% | Jun 2026 |
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| Foundation Wealth Management | 19k | $161k | 0% | Sep 2026 |
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| Graham Capital Management | 19k | $181k | 44% | Jun 2026 |
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| Vanguard Global Advisers | 18k | $179k | 0% | Jun 2026 |
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| Ballentine Partners | 17k | $164k | 0% | Jun 2026 |
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| Florida State Board of Administration | 15k | $151k | 0% | Jun 2026 |
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| Headlands Technologies | 15k | $148k | 100% | Jun 2026 |
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| ProFund Advisors | 14k | $119k | -31% | Sep 2026 |
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| Jump Financial | 14k | $133k | -89% | Jun 2026 |
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| Wealth Enhancement Advisory Services | 13k | $114k | 19% | Sep 2026 |
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| nVerses Capital | 13k | $130k | 100% | Jun 2026 |
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| Manufacturers Life Insurance Company | 13k | $124k | 4% | Jun 2026 |
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| Cary Street Partners Financial | 13k | $122k | 0% | Jun 2026 |
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| Police & Firemen's Retirement System of New Jersey | 13k | $122k | 0% | Jun 2026 |
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| Inscription Capital | 12k | $113k | 10% | Jun 2026 |
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| Mercer Global Advisors | 12k | $112k | -13% | Jun 2026 |
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| Raymond James Financial | 11k | $112k | -4% | Jun 2026 |
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| Commonwealth Equity Services | 11k | $112k | -4% | Jun 2026 |
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| Prudential Financial | 11k | $112k | 14% | Jun 2026 |
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| JBF Capital | 10k | $101k | 0% | Jun 2026 |
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| Quadrature Capital | 10k | $98k | 100% | Jun 2026 |
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| Cornerstone Select Advisors | 10k | $98k | 100% | Jun 2026 |
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| Cresset Asset Management | 10k | $98k | 0% | Jun 2026 |
|
| China Universal Asset Management | 9.4k | $82k | 12% | Sep 2026 |
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| New York State Common Retirement Fund | 9.0k | $88k | 0% | Jun 2026 |
|
| Public Employees' Retirement Association of Colorado | 6.6k | $64k | 0% | Jun 2026 |
|
| Versant Capital Management | 5.7k | $48k | 179% | Sep 2026 |
|
| Pinnacle Wealth Planning Services | 5.7k | $48k | 0% | Sep 2026 |
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| SRS Capital Advisors | 5.4k | $53k | 5783% | Jun 2026 |
|
| Royal Bank of Canada | 5.2k | $50k | 64% | Jun 2026 |
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| Rockefeller Capital Management | 5.1k | $50k | -9% | Jun 2026 |
|
| Brown Brothers Harriman & Co. | 5.0k | $49k | 0% | Jun 2026 |
|
| Tower Research Capital | 4.7k | $46k | 2% | Jun 2026 |
|
| Legal & General Group | 4.5k | $44k | 14% | Jun 2026 |
|
| Summit Investment Advisors | 3.4k | $34k | 0% | Jun 2026 |
|
| Signature | 2.9k | $24k | -28% | Sep 2026 |
|
| Farther Finance Advisors | 2.8k | $23k | 12% | Sep 2026 |
|
| Mirae Asset Global Investments | 2.6k | $22k | -7% | Sep 2026 |
|
| GAMMA Investing | 2.2k | $19k | -13% | Sep 2026 |
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| Quantbot Technologies | 1.6k | $16k | 100% | Jun 2026 |
|
| Flagship Wealth Advisors | 1.5k | $15k | 100% | Jun 2026 |
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| Gf Fund Management | 1.2k | $10k | 9% | Sep 2026 |
|
| Sterling Capital Management | 1.2k | $10k | 168% | Sep 2026 |
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| NISA Investment Advisors | 1.2k | $9.8k | 940% | Sep 2026 |
|
| HighMark Wealth Management | 900.00 | $8.8k | 0% | Jun 2026 |
|
| Hanson McClain Advisors | 842.00 | $8.2k | -11% | Jun 2026 |
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| SJS Investment Consulting | 812.00 | $6.8k | 26967% | Sep 2026 |
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| Pacer Advisors | 675.00 | $7.0k | 100% | Jun 2026 |
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| California State Teachers Retirement System | 613.00 | $6.0k | -74% | Jun 2026 |
|
| Hm Payson & Co | 600.00 | $5.9k | 0% | Jun 2026 |
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| Harbor Capital Advisors | 555.00 | $5.0k | 100% | Sep 2026 |
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| Northwestern Mutual Wealth Management Company | 500.00 | $4.9k | 900% | Jun 2026 |
|
| Federation des caisses Desjardins du Quebec | 500.00 | $4.9k | -75% | Jun 2026 |
|
| Us Bancorp | 393.00 | $3.8k | 100% | Jun 2026 |
|
| Thomas Stevens, CFA" | 337.00 | $3.3k | -99% | Jun 2026 |
|
Who sold out of Prothena?
| Fund or Company Name | Date Sold | Shares Held | Valued At |
|---|---|---|---|
| Armistice Capital | Mar 2026 | 439k | $4.3M |
| Point72 Asset Management | Mar 2026 | 400k | $3.9M |
| Walleye Trading Advisors | Mar 2026 | 277k | $2.7M |
| Assenagon Asset Management | Jun 2026 | 63k | $615k |
| Jackson Creek Investment Advisors | Mar 2026 | 54k | $526k |
| Fox Run Management | Mar 2026 | 35k | $324k |
| GSA Capital Partners | Mar 2026 | 33k | $316k |
| Cornerstone Investment Partners | Mar 2026 | 31k | $298k |
| OTR - Nominee Name for The State Teachers Retirement Board of Ohio | Jun 2026 | 18k | $175k |
| CHICAGO TRUST Co NA | Jun 2026 | 15k | $147k |
| SG Americas Securities | Mar 2026 | 14k | $131k |
| Intech Investment Management | Mar 2026 | 12k | $115k |
| Group One Trading | Mar 2026 | 3.4k | $33k |
| Simplex Trading | Mar 2026 | 1.3k | $13k |