Prothena Corp.PRTA
13F holders, Q3 2024 (September 30)164holders +4
20new positions
18sold out
4famous investors
$16.79avg. 13F price*
At the end of Q3 2024, 164 institutions reported holding Prothena Corp. PLC (PRTA) in their 13F filings, up 4 from Q2 2024. 20 opened new positions and 18 sold out. The largest holders were EcoR1 Capital, LLC ($193.8M), FMR LLC ($135.0M) and Wellington Management Group LLP ($69.9M). 4 famous investors held it, including Paul Tudor Jones (0.0% of Tudor Investment Corporation's portfolio), Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio) and Ken Griffin (0.0% of Citadel Advisors's portfolio).
- Company
- Prothena Corp. PLC
- CUSIP
- G72800108
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q2 2024 → Q3 2024
| Institutions | Total Value | |
|---|---|---|
| New Positions | 20 | $8.8M |
| Exits | 18 | $25.8M |
All 13F filers, Q2 2024 → Q3 2024: 2,821,411 shares bought and 3,928,089 shares sold, net −1,106,678 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 164 holders
| EcoR1 Capital, LLC | 6.64% | No change | 11,584,280 | $193.8M |
| FMR LLC | 0.01% | Add +0.0% | 8,066,983 | $135.0M |
| Wellington Management Group LLP | 0.01% | Add +14.8% | 4,178,788 | $69.9M |
| BlackRock, Inc. | 0.00% | — | 4,028,387 | $67.4M |
| T. Rowe Price Associates Inc. | 0.01% | Reduce -9.8% | 3,822,434 | $64.0M |
| Palo Alto Investors LP | 3.78% | Add +4.3% | 1,737,964 | $29.1M |
| State Street Corp. | 0.00% | Reduce -13.3% | 1,674,909 | $28.0M |
| Armistice Capital, LLC | 0.72% | Add +5.8% | 1,650,000 | $27.6M |
| Vanguard Group Inc. | 0.00% | Add +7.5% | 1,259,101 | $21.1M |
| Siren, L.L.C. | 0.92% | — | 1,099,840 | $18.4M |
| Geode Capital Management, LLC | 0.00% | Reduce -3.1% | 963,479 | $16.1M |
| Dimensional Fund Advisors LP | 0.00% | Reduce -0.9% | 854,050 | $14.3M |
| Morgan Stanley | 0.00% | Reduce -11.3% | 719,287 | $12.0M |
| Boxer Capital, LLC | 0.57% | No change | 690,000 | $11.5M |
| Rock Springs Capital Management LP | 0.34% | No change | 625,048 | $10.5M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Add +1122.9% | 526,748 | $8.8M |
| Prosight Management, LP | 2.05% | Add +68.5% | 483,467 | $8.1M |
| Finepoint Capital LP | 0.88% | No change | 433,471 | $7.3M |
| Goldman Sachs Group Inc. | 0.00% | Add +18.6% | 415,289 | $6.9M |
| Federated Hermes, Inc. | 0.01% | Add +823.1% | 404,903 | $6.8M |
| Northern Trust Corp. | 0.00% | Add +2.4% | 372,655 | $6.2M |
| Charles Schwab Investment Management Inc. | 0.00% | Reduce -0.7% | 324,962 | $5.4M |
| Mariner, LLC | 0.01% | Add +63.2% | 323,213 | $5.4M |
| Granahan Investment Management, LLC | 0.21% | Reduce -6.9% | 312,520 | $5.2M |
| Pinnacle Associates Ltd. | 0.08% | Add +2.3% | 125,747 | $4.6M |
| Citadel Advisors | 0.00% | Reduce -32.7% | 237,683 | $4.0M |
| Birchview Capital, LP | 3.04% | Add +3.0% | 209,574 | $3.5M |
| JPMorgan Chase & Co. | 0.00% | Reduce -32.4% | 199,986 | $3.3M |
| Renaissance Technologies | 0.00% | Reduce -44.5% | 182,800 | $3.1M |
| Nuveen Asset Management, LLC | 0.00% | Reduce -0.4% | 151,726 | $2.5M |
| Deep Track Capital, LP | 0.07% | New | 140,000 | $2.3M |
| Bank of New York Mellon Corp | 0.00% | Reduce -20.9% | 130,786 | $2.2M |
| Connor, Clark & Lunn Investment Management Ltd. | 0.01% | Add +8.6% | 122,492 | $2.0M |
| AXA S.A. | 0.01% | Add +0.0% | 120,755 | $2.0M |
| TD Asset Management Inc | 0.00% | No change | 100,694 | $2.0M |
| Millennium Management | 0.00% | Add +259.6% | 112,538 | $1.9M |
| PDT Partners, LLC | 0.16% | Add +7.7% | 110,654 | $1.9M |
| DCF Advisers, LLC | 0.94% | No change | 107,500 | $1.8M |
| Jane Street Group, LLC | 0.00% | Reduce -21.4% | 95,444 | $1.6M |
| Barclays PLC | 0.00% | Add +110.2% | 95,222 | $1.6M |
| Manufacturers Life Insurance Company, The | 0.00% | Add +3.8% | 86,071 | $1.4M |
| Bank of America Corp. | 0.00% | Reduce -31.0% | 82,063 | $1.4M |
| Algert Global LLC | 0.03% | Reduce -5.5% | 72,961 | $1.2M |
| Swiss National Bank | 0.00% | No change | 68,700 | $1.1M |
| Wells Fargo & Company | 0.00% | Add +9.0% | 66,199 | $1.1M |
| Rhumbline Advisers | 0.00% | Reduce -5.5% | 65,940 | $1.1M |
| UBS Group AG | 0.00% | Add +39.6% | 62,506 | $1.0M |
| Schonfeld Strategic Advisors LLC | 0.01% | New | 62,272 | $1.0M |
| Rafferty Asset Management, LLC | 0.00% | Reduce -35.9% | 62,230 | $1.0M |
| Norges Bank | 0.00% | No change | 57,454 | $961K |
| BNP Paribas Financial Markets | 0.00% | Add +44.6% | 55,842 | $934K |
| Duncan Williams Asset Management, LLC | 0.45% | New | 48,749 | $816K |
| Thrivent Financial for Lutherans | 0.00% | No change | 47,515 | $795K |
| Susquehanna International Group, LLP | 0.00% | Add +40.4% | 47,433 | $794K |
| Alliancebernstein L.P. | 0.00% | No change | 46,746 | $782K |
| RBF Capital, LLC | 0.04% | No change | 45,362 | $759K |
| Capula Management Ltd | 0.01% | New | 43,197 | $723K |
| Lazard Asset Management LLC | 0.00% | New | 42,173 | $705K |
| HRT Financial LP | 0.00% | Add +78.5% | 41,809 | $699K |
| Alps Advisors Inc. | 0.00% | Reduce -0.7% | 41,627 | $696K |
| Invesco Ltd. | 0.00% | Add +0.3% | 41,214 | $690K |
| Man Group plc | 0.00% | Add +0.2% | 40,606 | $679K |
| Legal & General Group Plc | 0.00% | Add +3.7% | 40,224 | $673K |
| Primecap Management Co. | 0.00% | Reduce -2.7% | 35,500 | $594K |
| California State Teachers Retirement System | 0.00% | Reduce -3.5% | 33,562 | $561K |
| Deutsche Bank AG | 0.00% | Add +17.8% | 32,458 | $543K |
| Jump Financial, LLC | 0.01% | Reduce -24.3% | 32,407 | $542K |
| Citigroup Inc. | 0.00% | Add +30.0% | 32,074 | $537K |
| Gsa Capital Partners LLP | 0.04% | New | 28,941 | $484K |
| Sherbrooke Park Advisers LLC | 0.11% | New | 27,582 | $461K |
| Tudor Investment Corporation | 0.01% | Add +2.8% | 27,531 | $461K |
| State of Wisconsin Investment Board | 0.00% | No change | 27,401 | $458K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Add +3.7% | 25,718 | $438K |
| Dynamic Technology Lab Private Ltd | 0.05% | New | 25,764 | $432K |
| MetLife Investment Management, LLC | 0.00% | No change | 25,337 | $424K |
| Cresset Asset Management, LLC | 0.00% | Reduce -13.7% | 24,425 | $409K |
| Edgewood Management LLC | 0.00% | No change | 24,060 | $403K |
| Corebridge Financial, Inc. | 0.00% | Reduce -0.6% | 22,736 | $380K |
| Ensign Peak Advisors, Inc | 0.00% | No change | 21,643 | $362K |
| Creative Planning | 0.00% | New | 20,907 | $350K |
| Brevan Howard Capital Management LP | 0.02% | Reduce -5.7% | 20,573 | $344K |
| American Century Companies Inc. | 0.00% | New | 18,302 | $306K |
| Janus Henderson Group PLC | 0.00% | Reduce -98.2% | 18,047 | $301K |
| Schroder Investment Management Group | 0.00% | No change | 15,000 | $301K |
| Orion Porfolio Solutions, LLC | 0.00% | Add +4.4% | 17,531 | $293K |
| Orion Portfolio Solutions, LLC | 0.00% | Add +4.4% | 17,531 | $293K |
| DekaBank Deutsche Girozentrale | 0.00% | No change | 14,000 | $277K |
| HighMark Wealth Management LLC | 0.15% | No change | 16,502 | $276K |
| XTX Topco Ltd | 0.02% | New | 15,564 | $260K |
| Handelsbanken Fonder AB | 0.00% | No change | 15,400 | $258K |
| State Board of Administration of Florida Retirement System | 0.00% | No change | 15,386 | $257K |
| HSBC Holdings PLC | 0.00% | New | 15,078 | $245K |
| New York State Common Retirement Fund | 0.00% | Reduce -22.3% | 14,279 | $239K |
| SG Americas Securities, LLC | 0.00% | Reduce -74.2% | 14,087 | $236K |
| Teachers Retirement System of the State of Kentucky | 0.00% | No change | 14,039 | $235K |
| Voya Investment Management LLC | 0.00% | Reduce -54.8% | 13,957 | $234K |
| Amundi | 0.00% | Reduce -13.9% | 13,686 | $228K |
| Qube Research & Technologies Ltd | 0.00% | New | 13,320 | $223K |
| Profund Advisors LLC | 0.01% | Reduce -29.9% | 12,661 | $212K |
| Intech Investment Management LLC | 0.00% | New | 12,555 | $210K |
"% of holder's portfolio" is PRTA's weight in each manager's 13F, not the share of Prothena Corp. PLC the manager owns.