Type	Name	Date
Underwriting agreement	Underwriting Agreement	09/21/2021
Underwriting agreement	Underwriting Agreement	11/21/2019
Underwriting agreement	Underwriting Agreement	12/13/2017
Underwriting agreement	Underwriting Agreement	09/05/2014
Underwriting agreement	Underwriting Agreement	10/22/2013
Underwriting agreement	Underwriting Agreement	06/26/2012

Type	Name	Date
Severance agreement	Agreement, between PCA and Richard B. West	01/22/2016
Severance agreement	Agreement, between Packaging Corporation of America and Paul T. Stecko	06/27/2013
Employment agreement	Employment Agreement, between Packaging Corporation of America and Paul T. Stecko	06/29/2010

Type	Name	Date
Merger agreement	Agreement and Plan of Merger, by and among Packaging Corporation of America, Bee Acquisition Corporation and Boise Inc	09/17/2013