Updated Jul 16, 2026 · Last SEC filing 2026-05-28
PACKAGING CORP OF AMERICA (PKG) has filed 9 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-05-28. 2 Form 8-K material event filings were reported by PKG in the last 90 days. 1 Form 144 notices of proposed sale were filed for PKG stock. InsiderAlpha tracks every PKG SEC filing — Form 4, Form 144, and 8-K — in real time, including Rule 10b5-1 plan detection.
| SEC CIK | 0000075677 |
|---|
| Form 4 filings (90d) | 9 |
|---|---|
| Form 8-K filings (90d) | 2 |
| Form 144 notices (90d) | 1 |
| Latest Form 4 filing | 2026-05-28 |
| Date | Insider | Role | Transaction | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| KOWLZAN MARK W | Chairman & CEO | S — Open-market sale | 9.3K | $217.08 | $2.01M | SEC | |
| Harman Donna A. | Insider | A — Grant or award | 591 | $0.00 | — | SEC | |
| Farrington Duane C | Insider | A — Grant or award | 591 | $0.00 | — | SEC | |
| LYONS ROBERT C | Insider | A — Grant or award | 591 | $0.00 | — | SEC | |
| MENCOFF SAMUEL M | Insider | A — Grant or award | 591 | $0.00 | — | SEC | |
| SOULELES THOMAS S | Insider | A — Grant or award | 591 | $0.00 | — | SEC | |
| PORTER ROGER B | Insider | A — Grant or award | 591 | $0.00 | — | SEC | |
| BEEBE CHERYL K | Insider | A — Grant or award | 591 | $0.00 | — | SEC | |
| GOWLAND KAREN E | Insider | A — Grant or award | 591 | $0.00 | — | SEC | |
| Hassfurther Thomas A | President | A — Grant or award | 29.8K | $0.00 | — | SEC | |
| Carter Charles J. | EVP-Mill Ops. | F — Tax withholding / forfeiture | 3.5K | $212.25 | $745K | SEC | |
| Carter Charles J. | EVP-Mill Ops. | A — Grant or award | 634 | $0.00 | — | SEC | |
| KOWLZAN MARK W | Chairman & CEO | A — Grant or award | 3.3K | $0.00 | — | SEC | |
| KOWLZAN MARK W | Chairman & CEO | F — Tax withholding / forfeiture | 20.5K | $212.25 | $4.35M | SEC | |
| KOWLZAN MARK W | Chairman & CEO | A — Grant or award | 43.0K | $0.00 | — | SEC |
All transactions sourced from SEC EDGAR Form 4 filings for PACKAGING CORP OF AMERICA (PKG). Updated in real time as new filings are submitted to the SEC.
| Insider | Form 4 filings | Total transaction value |
|---|---|---|
| LYONS ROBERT C | 1 | — |
| KOWLZAN MARK W | 1 | $2.01M |
| PORTER ROGER B | 1 | — |
| BEEBE CHERYL K | 1 | — |
| MENCOFF SAMUEL M | 1 | — |
Form 144 must be filed before insiders sell restricted or control stock above SEC thresholds. A cluster of Form 144 notices often precedes a wave of insider distribution.
SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in PKG insider filings:
| P | Open-market purchase by the insider |
|---|---|
| S | Open-market sale by the insider |
| A | Grant, award, or other acquisition from the issuer |
| M | Exercise or conversion of derivative security (e.g. options) |
| F | Payment of exercise price or tax liability via share withholding |
| G | Bona-fide gift of securities |
| D | Disposition to the issuer (e.g. share buyback participation) |
| J | Other acquisition or disposition |
| X | Exercise of in-the-money or at-the-money derivative security |
| C | Conversion of derivative security |
| V | Transaction voluntarily reported earlier than required |
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