On November 18, 2022, Affiliated Managers Group, Inc. (the “Company”) entered into (i) a First Amendment (the “Revolving Credit Agreement Amendment”) to that certain Second Amended and Restated Credit Agreement (the “Revolving Credit Agreement”) with Bank of America, N.A., as administrative agent, letter of credit issuer and swingline lender, and the other lending institutions from time to time party thereto, and (ii) a First Amendment (the “Term Credit Agreement Amendment”) to that certain Fourth Amended and Restated Term Credit Agreement (the “Term Credit Agreement” and, together with the Revolving Credit Agreement, the “Credit Agreements”) with Bank of America, N.A., as administrative agent, and the other lending institutions from time to time party thereto. The Revolving Credit Agreement Amendment (i) extends the maturity date of such revolving credit facility by 1 year to October 25, 2027, and (ii) replaces LIBOR with a Term SOFR-based rate as an applicable benchmark for the revolving credit facility provided under the Revolving Credit Agreement. The Term Credit Agreement Amendment also replaces LIBOR with a Term SOFR-based rate as an applicable benchmark for the term loan credit facility provided under the Term Credit Agreement.