{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-21-277858","form_type":"8-K","ticker":"PKG","cik":"0000075677","company_name":"PACKAGING CORP OF AMERICA","filed_at":"2021-09-21T23:59:59+00:00","discovered_at":"2026-05-14T18:04:20.699130+00:00","generated_at":"2026-06-29T02:28:17.073583+00:00","sec_items":["8.01","9.01"],"event_type":"debt","sentiment":"neutral","materiality_score":0.5,"calibrated_materiality_score":0.5,"confidence":"high","headline":"Packaging Corp of America issues $700M 3.050% Senior Notes due 2051 to refinance 2023 notes","bullets":["Issued $700M aggregate principal of 3.050% Senior Notes due 2051.","Net proceeds of ~$688.8M after underwriting discount and expenses.","Proceeds together with cash on hand to redeem outstanding 4.500% Senior Notes due 2023.","Underwriting agreement with Deutsche Bank Securities and Wells Fargo Securities as representatives."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-21-277858","json":"https://secwatch.observer/filing/0001193125-21-277858.json","markdown":"https://secwatch.observer/filing/0001193125-21-277858.md","text":"https://secwatch.observer/filing/0001193125-21-277858.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/75677/000119312521277858/0001193125-21-277858-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/75677/000119312521277858/d225216d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-29T02:28:17.073583+00:00"},"review":{"review_status":"machine_generated","human_reviewed":false,"corrected":false,"correction_note":null,"correction_timestamp":null,"superseded_by":null,"related_filings":[]},"source_grounded_claims":[],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}