X0407 4 2023-05-23 0001481792 Quad/Graphics, Inc. QUAD 0001595041 Flores Kathryn Quadracci C/O QUAD/GRAPHICS, INC. N61 W23044 HARRY'S WAY SUSSEX WI 53089-3995 1 0 Class A Common Stock 2023-05-23 4 D 0 1835 3.81 D 146361 D Class A Common Stock 4067 I As Trustee - DQ 2008 Trust Class A Common Stock 4067 I As Trustee - HVQ 2003 Trust Class A Common Stock 4067 I As Trustee - MAQ 2001 Trust Class B Common Stock Class A Common Stock 14915 14915 I As Trustee - HRQ 2014 Trust Class B Common Stock Class A Common Stock 2870 2870 I As Trustee - HVQ 2003 Trust Class B Common Stock Class A Common Stock 2868 2868 I As Trustee - MAQ 2001 Trust Class B Common Stock Class A Common Stock 2870 2870 I As Trustee - DQ 2008 Trust The price in column 4 is a weighted average price. The prices actually received ranged from $3.8 to $3.8714 per share. The reporting person has provided the issuer, and will provide any security holder of the issuer, or the SEC staff, upon request, information regarding the number of shares sold at each price within the range for all transactions reported in this Form 4, utilizing an average weighted price. Includes 77,652 shares attributable to deferred stock units and dividend equivalents. The deferred stock units were granted under the Quad/Graphics, Inc. 2010 and 2020 Omnibus Incentive Plans. As Trustee for the Danica Quadracci 2008 Trust. The reporting person is a trustee of the trust and/or is a current or future beneficiary thereof. The reporting person disclaims beneficial ownership of the reported securities except to the extent of her pecuniary interest therein. As Trustee for the Halle Victoria Quadracci 2003 Trust. The reporting person is a trustee of the trust and/or is a current or future beneficiary thereof. The reporting person disclaims beneficial ownership of the reported securities except to the extent of her pecuniary interest therein. As Trustee for the Meghan Angela Quadracci 2001 Trust. The reporting person is a trustee of the trust and/or is a current or future beneficiary thereof. The reporting person disclaims beneficial ownership of the reported securities except to the extent of her 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. As Trustee for the H. Richard Quadracci 2014 Trust. The reporting person is a trustee of the trust and/or is a current or future beneficiary thereof. The reporting person disclaims beneficial ownership of the reported securities except to the extent of her pecuniary interest therein. /s/ Alexander N. Pyke, as attorney-in-fact for Kathryn Quadracci Flores 2023-05-25