According to HODL15 Capital, as of February 15, 2025, the top 5 corporate bitcoin holders were as follows: BlackRock IBIT holds 587,050 BTC. Strategy (MSTR): holds 478,740 BTC. Fidelity FBTC holds 208,507 BTC. Grey releases GBTC with 199,644 BTC. Tether holds 83,759 BTC.