Donald R. Shirley - Jun 28, 2023 Form 4 Insider Report for PACKAGING CORP OF AMERICA (PKG)

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	PKG	Common Stock	Tax liability	-$352K	-2.72K	-8.99%	$129.40	27.6K	Jun 28, 2023	Direct	F1
transaction	PKG	Common Stock	Award	$0	+407	+1.48%	$0.00	28K	Jun 28, 2023	Direct	F2
holding	PKG	Common Stock						6.09K	Jun 28, 2023	by 401(k) plan

Showing 1 to 3 of 3 entries

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Id	Content
F1	Pursuant to the terms of the Company's Long-Term Equity Incentive Plan, the Company withheld shares to cover the withholding tax obligation associated with equity awards vesting on the transaction date.
F2	Payout in shares of accumulated dividends on vesting performance units.