What business was it? They are totally anonymous?
Do you understand how BTC transactions function?
BTC is anonymous.
Your IP not and your Addresses known to exchanges where you did KYC are not.
What for is the money? THIS is not in the blockchain...
What is the meaning of "consolidating the inputs"?
Consolidating inputs means,
you send a lot of small incoming funds that reside in many addresses in a low fee transaction to one address.
And you have patience until it confirms.
So you save a lot of fees compared to sending them in normal transactions.
All Big Exchange wallets are known. If you have the right tools you may see if it came from/go to an exchange.