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BCS

Notice of Proposed Sale · 144

Packaging Corp of America

PKGNYSEEQUITYCurrent

Notice of Proposed Sale

Filed Jul 28, 2026Accepted Jul 28, 2026, 10:16 AM EDTFiling CIK 75677Accession 0001949846-26-000443
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Structured filing — 144

primary_doc.xml

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Notice of proposed sale. The proposed amounts below do not establish that a sale occurred.

Proposed-sale notice

Issuer
PACKAGING CORP OF AMERICA
Issuer CIK
0000075677
SEC file number
001-15399
Phone
8474823000
Person for whose account securities are to be sold
Hassfurther Thomas A
Relationships to issuer
Officer
Street
1 NORTH FIELD CT
City
LAKE FOREST
State / country code
IL
Postal code
60045

Securities proposed for sale

Securities proposed for sale · 1 reported row
SecurityProposed unitsAggregate market valueUnits outstandingApproximate sale dateExchangeBroker / market maker
Common Stock28,3917,276,897.0089,098,64707/28/2026NYSECharles Schwab & Co., Inc.

Broker / market maker — proposed row 1, entry 1

Name
Charles Schwab & Co., Inc.
Street
3000 Schwab Way
City
Westlake
State / country code
TX
Postal code
76262

Acquisition of securities to be sold

Acquisition of securities to be sold · 3 reported rows
SecurityAcquiredNature of acquisitionAcquired fromAmount acquiredGift transactionPayment dateNature of payment
Common Stock02/24/2025Employee CompensationIssuer7,063N02/24/2025Equity Compensation
Common Stock03/04/2025Equity CompensationIssuer8,797N03/04/2025Equity Compensation
Common Stock04/04/2025Equity CompensationIssuer12,531N04/04/2025Equity Compensation

Prior-sale reporting

Nothing to report for the preceding three months
Y

Remarks

2a) Thomas A. Hassfurther Trust 12/22/2009, Thomas A. Hassfurther, TTEE

Notice signature

Notice date
07/28/2026
Signed
Thomas A. Hassfurther TTEE for Thomas A. Hassfurther Trust 12/22/2009

Company context

Current securities

Recent company filings

  1. Results of Operations and Financial ConditionOct 22, 2026
  2. 144 filingAug 20, 2026
  3. SCHEDULE 13G - filed by STATE STREET CORP regarding PACKAGING CORP OF AMERICAAug 7, 2026
  4. 10-Q filingAug 7, 2026
  5. Results of Operations and Financial ConditionJul 23, 2026

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