# ETFs That Hold Prothena PLC (PRTA) > 27 thematic and core ETFs hold Prothena PLC (PRTA). BBC holds the most, at 0.66% of the fund on Jul 31, 2026. Weights and filing dates for every holder. Data as of Nov 5, 2026. Rebuilt every trading night. ## ETFs that hold Prothena PLC 27 thematic and core ETFs hold Prothena PLC , by holdings dated Jun 30, 2026 to Nov 3, 2026 . BBC holds the most, at 0.66% of the fund on Jul 31, 2026 . The next largest are IBRN (0.51%) and QQQS (0.50%). 1 income and other fund on it is listed below. ### Thematic and core funds that hold it | Fund | Name | Share of the fund | Holdings filed | Asset | | --- | --- | --- | --- | --- | | BBC | Virtus Biotech Clinical Trials ETF | 0.66% | Jul 31, 2026 | Equity | | IBRN | iShares Neuroscience and Healthcare ETF | 0.51% | Nov 3, 2026 | Equity | | QQQS | Invesco NASDAQ Future Gen 200 ETF | 0.50% | Nov 3, 2026 | Equity | | FSCC | Federated Hermes MDT Small Cap Core ETF | 0.42% | Aug 31, 2026 | Equity | | XBI | State Street SPDR S&P Biotech ETF | 0.07% | Nov 3, 2026 | Equity | | GSSC | GS ActiveBeta U.S. Small Cap Equity ETF | 0.03% | Aug 31, 2026 | Equity | | IBB | iShares Biotechnology ETF | 0.03% | Nov 3, 2026 | Equity | | IBBQ | Invesco Nasdaq Biotechnology ETF | 0.03% | Nov 3, 2026 | Equity | | PWS | Pacer WealthShield ETF | 0.02% | Jul 31, 2026 | Equity | | AVSC | Avantis U.S. Small Cap Equity ETF | 0.02% | Nov 2, 2026 | Equity | | PRFZ | Invesco RAFI US 1500 Small-Mid ETF | 0.02% | Nov 3, 2026 | Equity | | VTWG | Vanguard Russell 2000 Growth ETF | 0.01% | Sep 30, 2026 | Equity | | RESM | Columbia Research Enhanced Small Cap ETF | 0.01% | Jun 30, 2026 | Equity | | RSSL | Global X Russell 2000 ETF | 0.01% | Jul 31, 2026 | Equity | | VTWO | Vanguard Russell 2000 ETF | 0.01% | Sep 30, 2026 | Equity | | IWM | iShares Russell 2000 ETF | 0.01% | Nov 3, 2026 | Equity | | IWO | iShares Russell 2000 Growth ETF | 0.01% | Nov 3, 2026 | Equity | | VTWV | Vanguard Russell 2000 Value ETF | 0.01% | Sep 30, 2026 | Equity | | DFAS | U.S. Small Cap Portfolio: ETF Class Shares | 0.01% | Jul 31, 2026 | Equity | | IWN | iShares Russell 2000 Value ETF | 0.01% | Nov 3, 2026 | Equity | | SCHA | Schwab U.S. Small-Cap ETF | 0.01% | Aug 31, 2026 | Equity | | VHT | Vanguard Health Care ETF | 0.01% | Sep 30, 2026 | Equity | | VXF | Vanguard Extended Market ETF | Prothena PLC (ticker PRTA, listed in IE) is matched in every holdings book ETFIQ publishes, by its ticker and name. A share of the fund is the weight its issuer published, as of the Holdings filed date. Shares, preferred shares and debt are told by each fund’s N-PORT asset type. A fund holding only the company’s debt or preferred shares is listed under them, not counted as holding its shares. Options, swaps, futures and cash do not count as holding a company: a call option on a share is not the share. Funds whose book is gross exposure, not a portfolio, are left out. Each row shows the date the fund last filed. Look up another company . ### Questions people ask Which ETFs hold Prothena PLC? 27 thematic and core ETFs hold Prothena PLC, by holdings dated Jun 30, 2026 to Nov 3, 2026. The largest positions are BBC at 0.66% of the fund on Jul 31, 2026, IBRN at 0.51% of the fund on Nov 3, 2026 and QQQS at 0.50% of the fund on Nov 3, 2026. 1 income and other fund on it is listed apart. --- Source: ETFIQ, independent ETF data. Recomputed nightly from public filings and prices. Cite: ETFIQ, ETFs holding PROTHENA PLC, data as of Nov 5, 2026. https://etfiq.com/holdings/prta/ Licence: https://etfiq.com/license/ Data ETFIQ computes is free to use with attribution: ETFIQ (etfiq.com). Issuer data stays under its owner's terms. HTML: https://etfiq.com/holdings/prta/