Fidelity Concord Street Trust - Fidelity Extended Market Index Fund (MutualFund:FSMA.X), Fidelity Concord Street Trust - Fidelity Total Market Index Fund, Fidelity Concord Street Trust - Fidelity Nasdaq Composite Index Fund (MutualFund:FNCM.X) and Fidelity Concord Street Trust - Fidelity Series Total Market Index Fund, funds managed by Fidelity Management & Research Company LLC, acquired 7.4% stake in Marathon Digital Holdings, Inc. (NasdaqCM:MARA) for approximately $20 million on July 22, 2021. Fidelity Concord Street Trust - Fidelity Extended Market Index Fund (MutualFund:FSMA.X), Fidelity Concord Street Trust - Fidelity Total Market Index Fund, Fidelity Concord Street Trust - Fidelity Nasdaq Composite Index Fund (MutualFund:FNCM.X) and Fidelity Concord Street Trust - Fidelity Series Total Market Index Fund, funds managed by Fidelity Management & Research Company LLC, completed the acquisition of 7.4% stake in Marathon Digital Holdings, Inc. (NasdaqCM:MARA) on July 22, 2021.