Hello, hopefully this helps more:
https://www.bankersonline.com/qa/how-fill-out-ctr-businesssignerAlso from BrianC in that thread:
There is person conducting the transaction and person on whose behalf a transaction is conducted. The question is, "Did the person making the withdrawal conduct the transaction on behalf of the business."
"In Randy's example, if I am cashing a paycheck, then I am cashing the check on my own behalf and that's it. FAQ #24 introduces the concept of "knowledge" for withdrawals from a joint account. Although a business account is not a joint account, if we have knowledge that a withdrawal is conducted on the business' behalf to purchase equipment, for petty cash, to fund and ATM, etc. then it is appropriate to identify the person making the withdrawal as "conducted on behalf of another" and the business as "person on whose behalf the transaction is conducted."
I agree with the FDIC that if we have knowledge, the business should be included."
Basically, does your institution have knowledge that the withdrawal was conducted on behalf on the business?