X0306 4 2021-07-29 0 0000798354 FISERV INC FISV 0001346629 Bisignano Frank 255 FISERV DRIVE BROOKFIELD WI 53045 1 1 0 0 President and CEO Common Stock 2021-07-07 5 G 0 E 1354 0.00 D 2487997 D Common Stock 2021-07-29 4 F 0 24351 114.46 D 2463646 D Common Stock 1567 I See Footnote Common Stock 120 I See Footnote Common Stock 15690 I By Spouse Common Stock 76713 I By Trust Common Stock 75000 I By Trust Reflects payment of tax liability by withholding securities incident to vesting of restricted stock units. These shares are held in an account, of which the reporting person acts as custodian, for the benefit of a minor. These shares are held by trusts, of which the reporting person serves as trustee, for the benefit of the reporting person's children. Held by the Frank J. Bisignano 2020 Grantor Retained Annuity Trust. /s/ Eric C. Nelson (attorney-in-fact) 2021-07-30