Fidelity Merrimack Street Trust - Fidelity Sustainable Low Duration Bond ETF is an exchange traded fund launched and managed by Fidelity Management & Research Company LLC. It is co-managed by Fidelity Management & Research (U.K.) Limited, Fidelity Management & Research (Hong Kong) Limited and Fidelity Management & Research (Japan) Limited. The fund invests in fixed income markets of global region. It primarily invests in investment grade debt securities. The fund seeks to maintain a duration of 1 year or less. It invests in securities of companies that are deemed socially conscious in their business dealings and directly promote environmental responsibility. The fund employs fundamental analysis to create its portfolio. It employs proprietary research to create its portfolio. Fidelity Merrimack Street Trust - Fidelity Sustainable Low Duration Bond ETF was formed on April 19,2022 and is domiciled in the United States.