---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-25-313400"
form_type: "8-K"
ticker: "PKG"
cik: "0000075677"
company_name: "PACKAGING CORP OF AMERICA"
filed_at: "2025-12-10T23:59:59+00:00"
generated_at: "2026-05-16T13:42:52.618483+00:00"
event_type: "other"
sentiment: "neutral"
materiality_score: 0.05
calibrated_materiality_score: 0.05
confidence: "low"
source: SEC EDGAR
---

# PCA files 8-K for investor presentation slides; no specific financial data in furnished excerpt

## Summary
- Chairman/CEO Mark W. Kowlzan and CFO Kent A. Pflederer conduct analyst/investor meetings Dec 10-11, 2025.
- Slide presentation furnished as Exhibit 99.1 but its content is not included in the filing text provided.
- No new financial metrics, guidance, or operational updates are available from the limited exhibit excerpt.
- Filing is procedural under Item 7.01 Regulation FD Disclosure; no material news explicitly stated.

## SEC filing metadata
- accession: 0001193125-25-313400
- form_type: 8-K
- ticker: PKG
- cik: 0000075677
- company_name: PACKAGING CORP OF AMERICA
- filed_at: 2025-12-10T23:59:59+00:00
- event_type: other
- sentiment: neutral
- materiality_score: 0.05
- calibrated_materiality_score: 0.05
- confidence: low
- sec_items: 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/75677/000119312525313400/0001193125-25-313400-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/75677/000119312525313400/d97795d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-25-313400
- JSON: https://secwatch.observer/filing/0001193125-25-313400.json
- Plain text: https://secwatch.observer/filing/0001193125-25-313400.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.