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Prothena Corporation plc (PRTA)
NasdaqGS - NasdaqGS Real-time price. Currency in USD
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Major holders
Currency in USDBreakdown
| 5.47% | % of shares held by all insiders |
| 94.32% | % of shares held by institutions |
| 99.77% | % of float held by institutions |
| 242 | Number of institutions holding shares |
Top institutional holders
| Holder | Shares | Date reported | % out | Value |
|---|---|---|---|---|
| EcoR1 Capital, LLC | 11,584,280 | 29 Jun 2022 | 24.69% | 702,354,908 |
| Price (T.Rowe) Associates Inc | 5,965,788 | 29 Jun 2022 | 12.71% | 361,705,732 |
| Blackrock Inc. | 3,471,300 | 29 Jun 2022 | 7.40% | 210,464,922 |
| FMR, LLC | 2,925,398 | 29 Jun 2022 | 6.23% | 177,366,883 |
| State Street Corporation | 2,246,073 | 29 Jun 2022 | 4.79% | 136,179,408 |
| First Light Asset Management, LLC | 1,938,183 | 29 Jun 2022 | 4.13% | 117,512,037 |
| Palo Alto Investors Lp | 1,681,477 | 29 Jun 2022 | 3.58% | 101,947,952 |
| Dimensional Fund Advisors LP | 1,566,753 | 29 Jun 2022 | 3.34% | 94,992,236 |
| Vanguard Group, Inc. (The) | 829,076 | 29 Jun 2022 | 1.77% | 50,266,878 |
| Redmile Group, LLC | 736,175 | 29 Jun 2022 | 1.57% | 44,634,291 |
Top mutual fund holders
| Holder | Shares | Date reported | % out | Value |
|---|---|---|---|---|
| Price (T.Rowe) New Horizons Fund | 1,475,021 | 29 Jun 2022 | 3.14% | 89,430,524 |
| SPDR (R) Ser Tr-SPDR (R) S&P (R) Biotech ETF | 1,465,410 | 30 Aug 2022 | 3.12% | 88,847,809 |
| Price (T.Rowe) Small Cap Stock Fund | 894,453 | 29 Jun 2022 | 1.91% | 54,230,686 |
| Fidelity Select Portfolios - Biotechnology | 834,489 | 29 Jun 2022 | 1.78% | 50,595,068 |
| iShares Russell 2000 ETF | 772,808 | 30 Aug 2022 | 1.65% | 46,855,349 |
| Fidelity Growth Company Fund | 637,289 | 30 Jul 2022 | 1.36% | 38,638,832 |
| Price (T.Rowe) Small-Cap Value Fund | 607,413 | 29 Jun 2022 | 1.29% | 36,827,450 |
| Price (T.Rowe) Health Sciences Fund | 581,579 | 29 Jun 2022 | 1.24% | 35,261,135 |
| Price (T.Rowe) Institutional Small-Cap Stock Fund | 481,744 | 29 Jun 2022 | 1.03% | 29,208,139 |
| Vanguard Extended Market Index Fund | 479,642 | 29 Jun 2022 | 1.02% | 29,080,694 |
| Blackrock Funds-Health Sciences Opportunity Portfolio | 391,632 | 30 May 2022 | 0.83% | 23,744,648 |
| DFA U.S. Small Cap Series | 380,436 | 29 Apr 2022 | 0.81% | 23,065,835 |
| BlackRock Health Sciences Trust II | 343,011 | 30 Mar 2022 | 0.73% | 20,796,757 |
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