<SEC-DOCUMENT>0001971857-23-000475.txt : 20230804
<SEC-HEADER>0001971857-23-000475.hdr.sgml : 20230804
<ACCEPTANCE-DATETIME>20230804150058
ACCESSION NUMBER:		0001971857-23-000475
CONFORMED SUBMISSION TYPE:	144
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20230804
DATE AS OF CHANGE:		20230804

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			PACKAGING CORP OF AMERICA
		CENTRAL INDEX KEY:			0000075677
		STANDARD INDUSTRIAL CLASSIFICATION:	PAPERBOARD CONTAINERS & BOXES [2650]
		IRS NUMBER:				364277050
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		144
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	001-15399
		FILM NUMBER:		231143611

	BUSINESS ADDRESS:	
		STREET 1:		1955 W FIELD CT
		CITY:			LAKE FOREST
		STATE:			IL
		ZIP:			60045
		BUSINESS PHONE:		8474823000

	MAIL ADDRESS:	
		STREET 1:		1955 W FIELD CT
		CITY:			LAKE FOREST
		STATE:			IL
		ZIP:			60045

REPORTING-OWNER:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Shirley Donald R.
		CENTRAL INDEX KEY:			0001776032

	FILING VALUES:
		FORM TYPE:		144

	MAIL ADDRESS:	
		STREET 1:		1 N. FIELD COURT
		CITY:			LAKE FOREST
		STATE:			IL
		ZIP:			60045
</SEC-HEADER>
<DOCUMENT>
<TYPE>144
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
<XML>
<?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:com="http://www.sec.gov/edgar/common">
  <headerData>
    <submissionType>144</submissionType>
    <filerInfo>
      <filer>
        <filerCredentials>
          <cik>0001776032</cik>
          <ccc>XXXXXXXX</ccc>
        </filerCredentials>
      </filer>
      <liveTestFlag>LIVE</liveTestFlag>


    </filerInfo>
  </headerData>
  <formData>
    <issuerInfo>
      <issuerCik>0000075677</issuerCik>
      <issuerName>PACKAGING CORP OF AMERICA</issuerName>
      <secFileNumber>001-15399</secFileNumber>
      <issuerAddress>
        <com:street1>1955 W FIELD CT</com:street1>
        <com:city>LAKE FOREST</com:city>
        <com:stateOrCountry>IL</com:stateOrCountry>
        <com:zipCode>60045</com:zipCode>
      </issuerAddress>
      <issuerContactPhone>8474823000</issuerContactPhone>
      <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Shirley Donald R.</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
      <relationshipsToIssuer>
        <relationshipToIssuer>Director</relationshipToIssuer>
      </relationshipsToIssuer>
    </issuerInfo>
    <securitiesInformation>
      <securitiesClassTitle>common</securitiesClassTitle>
      <brokerOrMarketmakerDetails>
        <name>Merrill Lynch</name>
        <address>
          <com:street1>1331 N California Blvd Ste 400</com:street1>
          <com:city>Walnut Creek</com:city>
          <com:stateOrCountry>CA</com:stateOrCountry>
          <com:zipCode>94596</com:zipCode>
        </address>
      </brokerOrMarketmakerDetails>
      <noOfUnitsSold>5000</noOfUnitsSold>
      <aggregateMarketValue>777791.37</aggregateMarketValue>
      <noOfUnitsOutstanding>89932185</noOfUnitsOutstanding>
      <approxSaleDate>08/04/2023</approxSaleDate>
      <securitiesExchangeName>NYSE</securitiesExchangeName>
    </securitiesInformation>
    <securitiesToBeSold>
      <securitiesClassTitle>common</securitiesClassTitle>
      <acquiredDate>06/26/2022</acquiredDate>
      <natureOfAcquisitionTransaction>stock bonus</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Donald Ray Shirley</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>1972</amountOfSecuritiesAcquired>
      <paymentDate>08/04/2023</paymentDate>
      <natureOfPayment>stock bonus</natureOfPayment>
    </securitiesToBeSold>
    <securitiesToBeSold>
      <securitiesClassTitle>common</securitiesClassTitle>
      <acquiredDate>07/22/2022</acquiredDate>
      <natureOfAcquisitionTransaction>stock bonus</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Donald Ray Shirley</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>3028</amountOfSecuritiesAcquired>
      <paymentDate>08/04/2023</paymentDate>
      <natureOfPayment>stock bonus</natureOfPayment>
    </securitiesToBeSold>
    <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
    <remarks>Mr Shirley signed a PDF version of the Form 144 on 08/03/2023.</remarks>
    <noticeSignature>
      <noticeDate>08/03/2023</noticeDate>
      <signature>Donald Ray Shirley</signature>
    </noticeSignature>
  </formData>
</edgarSubmission>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
