NasdaqGS - Delayed Quote • USD
Prothena Corporation plc (PRTA)
At close: April 26 at 4:00 PM EDT
After hours: April 26 at 4:20 PM EDT
Major Holders
| Breakdown | |
|---|---|
| 12.44% | % of Shares Held by All Insider |
| 100.74% | % of Shares Held by Institutions |
| 115.05% | % of Float Held by Institutions |
| 273 | Number of Institutions Holding Shares |
Top Institutional Holders
| Holder | Shares | Date Reported | % Out | Value |
|---|---|---|---|---|
| EcoR1 Capital, LLC | 11.58M | Dec 31, 2023 | 21.56% | 241,763,933 |
| FMR, LLC | 8.05M | Dec 31, 2023 | 14.98% | 167,999,249 |
| Price (T.Rowe) Associates Inc | 4.24M | Dec 31, 2023 | 7.89% | 88,433,518 |
| Blackrock Inc. | 3.77M | Dec 31, 2023 | 7.02% | 78,693,468 |
| State Street Corporation | 2.76M | Dec 31, 2023 | 5.14% | 57,571,232 |
| Wellington Management Group, LLP | 2.59M | Dec 31, 2023 | 4.83% | 54,138,910 |
| Janus Henderson Group PLC | 2.04M | Dec 31, 2023 | 3.79% | 42,490,987 |
| Palo Alto Investors Lp | 1.66M | Dec 31, 2023 | 3.09% | 34,645,390 |
| First Light Asset Management, LLC | 1.09M | Dec 31, 2023 | 2.03% | 22,723,277 |
| Vanguard Group Inc | 1.07M | Dec 31, 2023 | 1.99% | 22,342,483 |
Top Mutual Fund Holders
| Holder | Shares | Date Reported | % Out | Value |
|---|---|---|---|---|
| Vanguard Specialized-Health Care Fund | 2.39M | Jan 31, 2024 | 4.46% | 49,968,270 |
| Fidelity Growth Company Fund | 2.3M | Jan 31, 2024 | 4.27% | 47,912,617 |
| SPDR (R) Ser Tr-SPDR (R) S&P (R) Biotech ETF | 1.95M | Feb 29, 2024 | 3.63% | 40,686,442 |
| Price (T.Rowe) New Horizons Fund | 1.76M | Dec 31, 2023 | 3.28% | 36,812,886 |
| iShares Russell 2000 ETF | 1.02M | Feb 29, 2024 | 1.90% | 21,345,711 |
| Price (T.Rowe) Health Sciences Fund | 847.7k | Dec 31, 2023 | 1.58% | 17,691,437 |
| Fidelity Growth Company K6 Fund | 815.16k | Jan 31, 2024 | 1.52% | 17,012,389 |
| Fidelity Select Portfolios - Biotechnology | 801.42k | Jan 31, 2024 | 1.49% | 16,725,573 |
| Fidelity Series Growth Company Fund | 741.8k | Jan 31, 2024 | 1.38% | 15,481,470 |
| Janus Henderson Global Life Sciences Fund | 583.76k | Dec 31, 2023 | 1.09% | 12,183,092 |
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