BlackRock ETFs hold $384 million of shares in Bitcoin mining firms Post author:MiamiCrypto Post published:August 20, 2021 Post category:BlackRock / ETF / Marathon Digital Holdings / Riot Blockchain SEC filings reveal that BlackRock has invested almost $400 million into Riot Blockchain and Marathon Digital Holdings stock. You Might Also Like Solana ETF Filings Face Obstacles as SEC Rejection Looms December 6, 2024 21shares Launches First US Canton Network ETF on Nasdaq May 7, 2026 Sberbank Launches Russia’s First Blockchain-Focused ETF December 30, 2021