In tracking whales you can use ETHplorer.io which is yet another blockchain explorer specifically for Ethereum based tokens. But this one has a great interface and makes it really easy to see what addresses are holding the MOST of a token and what percentage that is of the overall current circulating supply. In my due diligence this is a great supplemental tool that gives me some important insight as to what the big Whales are doing with their tokens. Cheers!