Notice of Filing of Proposed Rule Change Relating to the First Trust Senior Loan Fund of First Trust Exchange Traded Fund IV

Notice of Designation of a Longer Period for Commission Action on a Proposed Rule Change Relating to the First Trust Senior Loan Fund of First Trust Exchange Traded Fund IV

Order Granting Approval of a Proposed Rule Change, as Modified by Amendment No. 1, Relating to the First Trust Senior Loan Fund of First Trust Exchange-Traded Fund IV