Shareholder Vote

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549     FORM 8-K     CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 17, 2022     Packaging Corporation of America (Exact name of registrant as specified in its charter)       Delaware   1-15399   36-4277050 (State or other jurisdiction of incorporation)   (Commission File Number)   (IRS Employer Identification No.) 1 N. Field Court , Lake Forest , Illinois 60045 (Address of Principal Executive Offices, including Zip Code) (847) 482-3000 (Registrant’s Telephone Number, Including Area Code)     Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrants under any of the following provisions:   ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)   ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)   ☐ Pre-commencement communications pursuant to Rule 14d-2 (b) under the Exchange Act (17 CFR 240.14d-2 (b))   ☐ Pre-commencement communications pursuant to Rule 13e-4 (c) under the Exchange Act (17 CFR 240.13e-4 (c)) Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§ 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§ 240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐ Securities registered pursuant to Section 12(b) of the Exchange Act:   Title of each class   Trading Symbol(s)   Name of each exchange on which registered Common Stock   PKG   New York Stock Exchange       Item 5.07. Submission of Matters to a Vote of Security Holders On May 17, 2022, Packaging Corporation of America held its 2022 Annual Meeting of Stockholders, at which the following proposals were voted upon and approved by PCA’s stockholders: (a)     Election of Directors . Voting results are summarized as follows:   Nominee    Votes For      Votes Against      Abstentions      Broker Non Vote   Cheryl K. Beebe      76,732,159        4,459,888        27,797        3,744,685   Duane C. Farrington      80,956,306        233,529        30,009        3,744,685   Donna A. Harman      80,942,339        250,188        27,317        3,744,685   Mark W. Kowlzan      74,034,646        6,805,620        379,578        3,744,685   Robert C. Lyons      80,729,157        459,644        31,043        3,744,685   Thomas P. Maurer      81,025,968        163,013        30,863        3,744,685   Samuel M. Mencoff      75,548,721        5,642,106        29,017        3,744,685   Roger B. Porter      70,161,522        9,684,541        1,373,781        3,744,685   Thomas S. Souleles      77,758,987        3,430,426        30,431        3,744,685   Paul T. Stecko      78,749,516        2,437,484        32,844        3,744,685   (b)     Ratification of Independent Registered Public Accounting Firm . The audit committee’s appointment of KPMG LLP as PCA’s independent registered public accounting firm was ratified by the following vote: 84,440,114 votes for, 489,360 votes against, 35,055 abstentions. (c)     Approval of PCA’s Executive Compensation . 74,716,386 votes for, 5,332,200 votes against, 1,171,258 abstentions and 3,744,685 broker non-votes. SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.       PACKAGING CORPORATION OF AMERICA By:   /s/ Kent A. Pflederer   Senior Vice President, General Counsel & Secretary Date: May 20, 2022