March 6, 2026 · Form 4 insider transaction
Shirley Donald R. sold 1,402 shares of Packaging Corporation of America at $222.52 per share, a transaction worth $312.0K. The trade was recorded as shares withheld for taxes and disclosed on an SEC Form 4, filed 4 days after the transaction.
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.