X0609 4 2026-05-20 0001481792 Quad/Graphics, Inc. QUAD 0001309337 Harned Christopher B false C/O QUAD/GRAPHICS, INC. N61 W23044 HARRY'S WAY SUSSEX WI 53089 1 0 Class A Common Stock 2026-05-20 4 A 0 19178 0 A 300533 D Class A Common Stock 50205 I As Trustee - Winderful Foundation, Inc. Class A Common Stock 265355 I By Spouse Class B Common Stock Class A Common Stock 234012 234012 I By Spouse Class B Common Stock Class A Common Stock 2888 2888 I As Trustee - Winderful Foundation Inc. Includes 2,571 additional deferred stock units resulting from the payment of dividends on the class A common stock underlying deferred stock units previously granted. Includes 19,178 shares attributable to deferred stock units granted under the Quad/Graphics, Inc. 2020 Omnibus Incentive Plan that will be delivered to the reporting person on May 20, 2028 unless deferred by the reporting person, or on separation from service. Any dividend or other distribution paid with respect to class A common stock underlying the deferred stock units shall accrue and be converted into additional deferred stock units based on the closing price of class A common stock on any such dividend payable date. As Trustee of Winderful Foundation Inc. The reporting person is a trustee of the foundation and/or is a current or future beneficiary thereof. The reporting person disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein. Class B Common Stock is convertible into Class A Common Stock on a 1-for-1 basis at no cost and has no expiration date. /s/ Alexander N. Pyke, attorney-in-fact for Christopher B. Harned 2026-05-22