KYNDRYL HOLDINGS, INC. and THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., as Trustee FIRST SUPPLEMENTAL INDENTURE Dated as of October 15, 2021 to INDENTURE Dated as of October 15, 2021 Relating to $700,000,000 of 2.050% Notes due 2026 $500,000,000...