According to Odaily, as of September 1, 2024, BlackRock's IBIT has emerged as the world's largest institutional Bitcoin holder, possessing 357,509 Bitcoins. MicroStrategy has surpassed Grayscale's GBTC, holding 226,500 Bitcoins compared to GBTC's 225,671, securing the second position. 

Fidelity's FBTC ETF ranks fourth with 178,349 Bitcoins, while stablecoin giant Tether holds 75,354 Bitcoins, placing it fifth. Other notable institutional holders include ARK Invest/21 Shares' ARKB with 37,147 Bitcoins and Bitcoin mining company Marathon Digital with 25,000 Bitcoins. It is noteworthy that MicroStrategy announced earlier this year its transformation into a 'Bitcoin development company,' making it the largest known institutional holder before the emergence of Bitcoin ETFs.