According to HODL15Capital monitoring, as of December 7, the top 15 entities with current bitcoin holdings include IBIT, grey release GBTC and BTC, MSTR, FBTC, ARKB, BITB, MARA, HODL, Tesla, Coinbase, HUT, BRRR, SQ, Tether, CLSK, etc. The top three are: BlackRock IBIT holds 523,735 BTC. Microstrategy (MSTR) holds 402,100 BTC. Fidelity FBTC holds 212,385 BTC.