X0306 4 2021-03-01 0001481792 Quad/Graphics, Inc. QUAD 0001495576 Vanderboom Kelly A C/O QUAD/GRAPHICS, INC. N61 W23044 HARRY'S WAY SUSSEX WI 53089 1 EVP & Treasurer Class A Common Stock 2021-03-01 4 F 0 5860 4.38 D 174300 D Class A Common Stock 1678.9253 I By 401(a) Plan Reflects payment of tax liability by withholding shares of stock incident to the vesting of restricted stock previously issued Shares acquired under the Company Savings Plan based on information furnished by the Plan Administrator as of 02/28/2021. /s/ Sherilyn R. Whitmoyer, as attorney-in-fact for Kelly A. Vanderboom 2021-03-03