Prothena Corporation Plc · NASDAQ:PRTA
Prothena Corporation Plc shareholders
Prothena Corporation Plc on 6ix: holders from US fund reports; insider trades reported in the US. Largest: Fidelity Growth Company Fund, State Street(R) SPDR(R) S&P(R) Biotech ETF and iShares Russell 2000 ETF. Each with its filing.
| Holder | Shares | % of Prothena Corporation Plc | Change | As of |
|---|---|---|---|---|
| Fidelity Growth Company Fund | 2.29M | no change | May 31, 2026 | |
| State Street(R) SPDR(R) S&P(R) Biotech ETF | 1.45M | +470K | Jun 30, 2026 | |
| iShares Russell 2000 ETF | 1.16M | +71,007 | Jun 30, 2026 | |
| Fidelity Series Growth Company Fund | 759K | no change | May 31, 2026 | |
| Vanguard Explorer Fund | 757K | +140K | Jul 31, 2026 | |
| Select Biotechnology Portfolio | 496K | −148K | May 31, 2026 | |
| Fidelity Small Cap Index Fund | 486K | +52,307 | Jul 31, 2026 | |
| Vanguard Extended Market Index Fund | 480K | −3,469 | Jun 30, 2026 | |
| Fidelity Growth Company K6 Fund | 424K | −5,532 | May 31, 2026 | |
| Federated Hermes MDT Small Cap Core Fund | 394K | no change | Jul 31, 2026 |