Form4insider filings, from the source

SEC Form 4 · accession 0001193125-26-363053

PACKAGING CORP OF AMERICA · PKG

Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗

Reporting owner
Donald R. Shirley
Officer — Exec. VP
Period of report
Aug 20, 2026
Accepted (ET)
Aug 24, 2026 · 2:32 pm EDT
Rule 10b5-1 plan
box not checked
Issuer CIK
0000075677

Table I — non-derivative securities

SecurityDateCodeSharesPriceA/DOwned afterD/INature of ownership
Common StockF1Aug 20, 2026S12,000$250.708D19,110D
Common Stockholding———6,501Iby 401(k) plan

Table II — derivative securities

No Table II lines on this filing.

Explanation of responses