Updated Jul 16, 2026
KOWLZAN MARK W has filed 1 SEC Form 4 filing across 1 company in the last 90 days — selling. Lifetime open-market sales: $23.41M.

| Role | Insider |
|---|---|
| Notability | 30/100 |
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-05-28 | PKG | PACKAGING CORP OF AMERICA | S — Open-market sale | 9.3K | $217.08 | $2.01M |
| 2026-03-31 | PKG | PACKAGING CORP OF AMERICA | F — Tax withholding / forfeiture | 20.5K | $212.25 | $4.35M |
| 2026-03-31 | PKG | PACKAGING CORP OF AMERICA | A — Grant or award | 3.3K | $0.00 | |
| 2026-03-31 | PKG | PACKAGING CORP OF AMERICA | A — Grant or award | 43.0K | $0.00 | |
| 2026-03-10 | PKG | PACKAGING CORP OF AMERICA | F — Tax withholding / forfeiture | 8.0K | $222.52 | $1.79M |
| 2026-03-10 | PKG | PACKAGING CORP OF AMERICA | A — Grant or award | 1.5K | $0.00 | |
| 2026-03-10 | PKG | PACKAGING CORP OF AMERICA | A — Grant or award | 16.6K | $0.00 | |
| 2026-02-27 | PKG | PACKAGING CORP OF AMERICA | A — Grant or award | 17.0K | $0.00 | |
| 2026-02-25 | PKG | PACKAGING CORP OF AMERICA | F — Tax withholding / forfeiture | 7.4K | $225.55 | $1.66M |
| 2025-09-11 | PKG | PACKAGING CORP OF AMERICA | S — Open-market sale | 25.0K | $215.97 | $5.40M |
| 2025-04-04 | PKG | PACKAGING CORP OF AMERICA | F — Tax withholding / forfeiture | 13.3K | $183.42 | $2.43M |
| 2025-04-04 | PKG | PACKAGING CORP OF AMERICA | A — Grant or award | 2.4K | $0.00 | |
| 2025-04-04 | PKG | PACKAGING CORP OF AMERICA | A — Grant or award | 27.6K | $0.00 | |
| 2024-11-08 | PKG | PACKAGING CORP OF AMERICA | S — Open-market sale | 27.0K | $240.34 | $6.50M |
| 2024-11-08 | PKG | PACKAGING CORP OF AMERICA | S — Open-market sale | 36.4K | $239.54 | $8.73M |
| 2024-11-08 | PKG | PACKAGING CORP OF AMERICA | S — Open-market sale | 3.2K | $243.01 | $769K |
KOWLZAN MARK W is a corporate insider — currently tracked as Insider of PACKAGING CORP OF AMERICA (PKG). InsiderAlpha tracks every SEC Form 4 filing in real time.
1 primary Form 4 filings in the last 90 days, covering 1 company.
Recorded transactions: 0 open-market purchases () and 5 open-market sales ($23.41M) across all tracked filings.
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
Open the live KOWLZAN MARK W profile on InsiderAlpha for real-time alerts, AI-scored trade ideas, and full transaction history.