Mark W. Kowlzan
Chairman & CEO at Packaging Corporation of America
Sits on 1 board. Last updated September 28, 2026
Time on boards
- Boards served
- 1
- Current seats
- 1
- Board service
- 4 years
- Director since
- 2023
4 years of board service in total across 1 board, counting each seat separately. Longest: Packaging Corporation of America, 3 years.
Packaging Corporation of America
Director · Chairman & CEO
Chief executive roles
Packaging Corporation of America
· Chairman & CEO
Dates unknown
Insider trades
All notable trades →From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.
| Date | Company | Transaction | Shares | Price | Value |
|---|---|---|---|---|---|
| May 27, 2026 | Packaging Corporation of America | Open-market sale | −9,266 | $217.08 | $2,011,463 |
| Mar 27, 2026 | Packaging Corporation of America | Grant or award | +43,010 | — | — |
| Mar 27, 2026 | Packaging Corporation of America | Grant or award | +3,292 | — | — |
| Mar 27, 2026 | Packaging Corporation of America | Shares withheld for tax | −20,513 | $212.25 | $4,353,884 |
| Mar 6, 2026 | Packaging Corporation of America | Grant or award | +16,637 | — | — |
| Mar 6, 2026 | Packaging Corporation of America | Grant or award | +1,476 | — | — |
| Mar 6, 2026 | Packaging Corporation of America | Shares withheld for tax | −8,025 | $222.52 | $1,785,723 |
| Feb 25, 2026 | Packaging Corporation of America | Grant or award | +16,992 | — | — |
| Feb 23, 2026 | Packaging Corporation of America | Shares withheld for tax | −7,371 | $225.55 | $1,662,529 |
| Sep 11, 2025 | Packaging Corporation of America | Open-market sale | −25,000 | $215.97 | $5,399,250 |
| Apr 4, 2025 | Packaging Corporation of America | Grant or award | +27,559 | — | — |
| Apr 4, 2025 | Packaging Corporation of America | Grant or award | +2,404 | — | — |
| Apr 4, 2025 | Packaging Corporation of America | Shares withheld for tax | −13,274 | $183.42 | $2,434,717 |
| Mar 4, 2025 | Packaging Corporation of America | Grant or award | +19,195 | — | — |
| Mar 4, 2025 | Packaging Corporation of America | Grant or award | +1,779 | — | — |
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