X0202 SCHEDULE 13G/A 0000935836-26-000084 0001854440 XXXXXXXX LIVE 3 Class A Common Stock 03/31/2026 0001794669 Shift4 Payments, Inc. 82452J109 3501 CORPORATE PARKWAY CENTER VALLEY PA 18034 Rule 13d-1(b) Rule 13d-1(c) Darlington Partners Capital Management, LP b DE 0.00 6576509.00 0.00 6576509.00 6576509.00 N 8.3 IA PN Percentage calculated based on 79,328,897 shares of Class A Common Stock outstanding on April 13, 2026, as reported in the proxy statement filed by the Issuer on April 30, 2026. Darlington Partners GP, LLC b DE 0.00 6576509.00 0.00 6576509.00 6576509.00 N 8.3 HC OO Percentage calculated based on 79,328,897 shares of Class A Common Stock outstanding on April 13, 2026, as reported in the proxy statement filed by the Issuer on April 30, 2026. Darlington Partners, L.P. b DE 0.00 6576509.00 0.00 6576509.00 6576509.00 N 8.3 PN Percentage calculated based on 79,328,897 shares of Class A Common Stock outstanding on April 13, 2026, as reported in the proxy statement filed by the Issuer on April 30, 2026. Scott W. Clark b X1 0.00 6576509.00 0.00 6576509.00 6576509.00 N 8.3 HC IN Percentage calculated based on 79,328,897 shares of Class A Common Stock outstanding on April 13, 2026, as reported in the proxy statement filed by the Issuer on April 30, 2026. Ramsey B. Jishi b X1 0.00 6576509.00 0.00 6576509.00 6576509.00 N 8.3 HC IN Percentage calculated based on 79,328,897 shares of Class A Common Stock outstanding on April 13, 2026, as reported in the proxy statement filed by the Issuer on April 30, 2026. Shift4 Payments, Inc. 3501 Corporate Parkway, Center Valley, PA 18034 Darlington Partners Capital Management, LP, a Delaware limited partnership ("DPCM LP") Darlington Partners GP, LLC, a Delaware limited liability company ("DP GP") Darlington Partners, L.P., a Delaware limited Darlington ("Darlington") Scott W. Clark Ramsey B. Jishi DPCM LP is the investment adviser of private investment funds, including Darlington (together, the "Funds"). DP GP is the general partner of DPCM LP and the Funds. Mr. Clark and Mr. Jishi are the managers of DP GP. The Filers are filing this Schedule 13G jointly but not as members of a group, and each disclaims membership in a group. Each reporting person disclaims beneficial ownership of Common Stock except to the extent of that person's pecuniary interest therein. In addition, the filing of this Schedule 13G on behalf of Darlington should not be construed as an admission that it is, and it disclaims that it is, a beneficial owner, as defined in Rule 13d-3 under the Act, of any Common Stock covered by this Schedule 13G. 300 Drakes Landing Road, Suite 290, Greenbrae, CA 94904 See Item 4 of the cover sheet for each reporting person. N IA HC DPCM LP: 6,576,509 DP GP: 6,576,509 Darlington: 6,576,509 Scott W. Clark: 6,576,509 Ramsey B. Jishi: 6,576,509 DPCM LP: 8.3% DP GP: 8.3% Darlington: 8.3% Scott W. Clark: 8.3% Ramsey B. Jishi: 8.3% DPCM LP: 0 DP GP: 0 Darlington: 0 Scott W. Clark: 0 Ramsey B. Jishi: 0 DPCM LP: 6,576,509 DP GP: 6,576,509 Darlington: 6,576,509 Scott W. Clark: 6,576,509 Ramsey B. Jishi: 6,576,509 DPCM LP: 0 DP GP: 0 Darlington: 0 Scott W. Clark: 0 Ramsey B. Jishi: 0 DPCM LP: 6,576,509 DP GP: 6,576,509 Darlington: 6,576,509 Scott W. Clark: 6,576,509 Ramsey B. Jishi: 6,576,509 Y N DPCM LP's clients, including Darlington, have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, the Stock. No individual client's holdings of the Stock, other than those of Darlington, are more than five percent of the outstanding Stock. Y Y Y N By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11. By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11. Exhibit 99.1 - Agreement Regarding Joint Filing of Statement on Schedule 13D or 13G Darlington Partners Capital Management, LP /s/ Scott W. Clark 05/15/2026 Darlington Partners GP, LLC /s/ Scott W. Clark 05/15/2026 Darlington Partners, L.P. /s/ Scott W. Clark 05/15/2026 Scott W. Clark /s/ Scott W. Clark 05/15/2026 Ramsey B. Jishi /s/ Ramsey B. Jishi 05/15/2026