By Roman Semko
The main top addresses refer to various sources, like: 1) IOTA Foundation’s holdings (donated 100% by IOTA’s community), 2) Bitfinex hot/cold wallets, 3) Other exchanges’ hot/cold wallets (bit520, coinspot, YDX, etc.), 4) Various other community-donated funds to build and invest into IOTA’s ecosystem (e.g. Ecosystem Fund, Whale Fund, etc.), 5) etc.