| Date Filed | Type | Description |
| 08/07/2023 |
144
| Form 144 - Report of proposed sale of securities: |
| 08/04/2023 |
144
| Form 144 - Report of proposed sale of securities: |
| 08/04/2023 |
10-Q
| Quarterly Report for the period ended June 30, 2023 |
| 07/31/2023 |
144
| Form 144 - Report of proposed sale of securities: |
| 07/26/2023 |
144
| Form 144 - Report of proposed sale of securities: |
| 07/26/2023 |
144
| Form 144 - Report of proposed sale of securities: |
| 05/31/2023 |
11-K
| Form 11-K - Annual report of employee stock purchase, savings and similar plans: |
| 05/31/2023 |
11-K
| Form 11-K - Annual report of employee stock purchase, savings and similar plans: |
| 05/04/2023 |
8-K
| Quarterly results |
| 05/03/2023 |
10-Q
| Quarterly Report for the period ended March 31, 2023 |
| 04/06/2023 |
SC 13G
| BlackRock Inc. reports a 10.1% stake in PACKAGING CORP OF AMERICA |
| 03/23/2023 |
ARS
| Form ARS - Annual Report to Security Holders: |
| 03/23/2023 |
DEFA14A
| Form DEFA14A - Additional definitive proxy soliciting materials and Rule 14(a)(12) material: |
| 03/23/2023 |
DEF 14A
| Form DEF 14A - Other definitive proxy statements: |
| 02/23/2023 |
10-K
| Annual Report for the period ended December 31, 2022 |
| 02/14/2023 |
SC 13G/A
| PRICE T ROWE ASSOCIATES INC reports a 2% stake in PACKAGING CORP OF AMERICA |
| 11/03/2022 |
10-Q
| Quarterly Report for the period ended September 30, 2022 |
| 10/24/2022 |
8-K
| Quarterly results |
| 08/04/2022 |
10-Q
| Quarterly Report for the period ended June 30, 2022 |
| 07/25/2022 |
8-K
| Quarterly results |
| 06/17/2022 |
11-K
| Form 11-K - Annual report of employee stock purchase, savings and similar plans: |
| 06/17/2022 |
11-K
| Form 11-K - Annual report of employee stock purchase, savings and similar plans: |
| 05/20/2022 |
8-K
| Quarterly results |
| 05/05/2022 |
10-Q
| Quarterly Report for the period ended March 31, 2022 |
| 04/25/2022 |
8-K
| Quarterly results |
| 03/25/2022 |
DEFA14A
| Form DEFA14A - Additional definitive proxy soliciting materials and Rule 14(a)(12) material: |
| 03/25/2022 |
DEF 14A
| Form DEF 14A - Other definitive proxy statements: |
| 02/25/2022 |
8-K
| Quarterly results |
| 02/24/2022 |
10-K
| Annual Report for the period ended December 31, 2021 |
| 02/11/2022 |
SC 13G/A
| Capital World Investors reports a 3.3% stake in Packaging Corp. of America |
| 02/10/2022 |
SC 13G/A
| VANGUARD GROUP INC reports a 12.5% stake in Packaging Corp. of America |
| 02/07/2022 |
5
| BEEBE CHERYL K (Director) has filed a Form 5 on PACKAGING CORP OF AMERICA |
| 01/31/2022 |
SC 13G/A
| Form SC 13G/A - Statement of acquisition of beneficial ownership by individuals: [Amend] |
| 01/26/2022 |
8-K
| Results of Operations and Financial Condition, Regulation FD Disclosure, Financial Statements and Exhibits I... |
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