PRTA Prothena Corporation plc
Healthcare$9.83+4.46%ClosedMarket Cap: $514.6M
As of 2026-05-25
Institutional Ownership Summary
Investors Holding
193
13F Shares
47,253,075
Ownership %
87.8%
New Positions
23
Increased Positions
81
Closed Positions
32
Reduced Positions
62
ETF Exposure
| ETF Symbol | ETF Name | Shares Held | Weight % |
|---|---|---|---|
| Virtus Biotech Clinical Trials ETF | 26,320 | 0.74% | |
| 983,448 | 0.13% | ||
| 306,335 | 0.13% | ||
| Direxion Daily S&P Biotech Bull 3X ETF | 50,117 | 0.10% | |
| Nuveen ESG Small-Cap | 42,731 | 0.05% | |
| iShares Biotechnology ETF | 323,349 | 0.04% | |
| Avantis U.S. Small Cap Equity ETF | 73,295 | 0.03% | |
| 339,557 | 0.03% | ||
| iShares Russell 2000 Value ETF | 339,557 | 0.03% | |
| 617,222 | 0.03% | ||
| 617,222 | 0.03% | ||
| 29,090 | 0.02% | ||
| Dimensional - US Small Cap ETF | 173,656 | 0.01% | |
| 218,450 | 0.01% | ||
| iShares Russell 2500 ETF | 16,409 | 0.01% | |
| iShares Russell 2000 ETF | 1,093,449 | 0.01% | |
| Schwab U.S. Small-Cap ETF | 208,005 | 0.01% | |
| Global X - Russell 2000 ETF | 20,064 | 0.01% | |
| 1,093,449 | 0.01% | ||
| Invesco RAFI US 1500 Small-Mid ETF | 20,836 | 0.01% |