The most recent Packaging Corp Of America (PKG) insider transaction: Donald R. Shirley (Exec. Vp) sold 12,000 shares worth about $3.01Mn on Aug 20, 2026, reported on Form 4 on Aug 24, 2026. So far in the quarter ending Dec 31, 2026, insider holdings showed no net buying or selling.
In the last 12 months, insiders at Packaging Corp of America made open-market sales of $15 million (61.79K shares) and bought no shares on the open market.
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Mark W Kowlzan | Chairman Ceo | 473,610 | 0 | 473,610 | 34.4% | 28 May, 2026 |
| 2 | Samuel M Mencoff | Director | 270,194 | 0 | 270,194 | 19.6% | 13 May, 2026 |
| 3 | Thomas A Hassfurther | President | 202,891 | 0 | 202,891 | 14.7% | 11 Aug, 2026 |
| 4 | Kent A. Pflederer | Evp Cfo | 73,061 | 0 | 73,061 | 5.3% | 31 Mar, 2026 |
| 5 | Charles J. Carter | Evp Mill Ops. | 50,621 | 0 | 50,621 | 3.7% | 31 Mar, 2026 |
| 6 | Pamela A. Barnes | Svp | 44,501 | 0 | 44,501 | 3.2% | 27 Mar, 2024 |
| 7 | Robert P. Mundy | Evp Cfo | 44,408 | 0 | 44,408 | 3.2% | 08 Apr, 2025 |
| 8 | Darla J. Olivier | Svp | 27,397 | 0 | 27,397 | 2.0% | 31 Mar, 2026 |
| 9 | Robert Andrew Schneider | Svp Cio | 24,351 | 0 | 24,351 | 1.8% | 27 Mar, 2024 |
| 10 | Roger B Porter | Director | 22,604 | 0 | 22,604 | 1.6% | 12 May, 2026 |
| 11 | Donald R. Shirley | Exec. Vp | 19,110 | 0 | 19,110 | 1.4% | 24 Aug, 2026 |
| 12 | Jeffrey S Kaser | Svp | 17,398 | 0 | 17,398 | 1.3% | 27 Mar, 2024 |
| 13 | Bruce A Ridley | Svp | 15,618 | 0 | 15,618 | 1.1% | 27 Mar, 2024 |
| 14 | Cheryl K Beebe | Director | 15,104 | 0 | 15,104 | 1.1% | 12 May, 2026 |
| 15 | Robert C Lyons | Director | 13,429 | 0 | 13,429 | 1.0% | 12 May, 2026 |
| 16 | Thomas S Souleles | Director | 11,202 | 0 | 11,202 | 0.8% | 12 May, 2026 |
| 17 | Joseph Vaughn | Svp | 11,167 | 0 | 11,167 | 0.8% | 26 Feb, 2026 |
| 18 | Paul T Stecko | Exec Chairman | 9,492 | 0 | 9,492 | 0.7% | 09 May, 2025 |
| 19 | Thomas P. Maurer | Director | 8,764 | 0 | 8,764 | 0.6% | 10 May, 2024 |
| 20 | Duane C Farrington | Director | 7,243 | 0 | 7,243 | 0.5% | 12 May, 2026 |
| 21 | Heidi L Patton | Svp | 6,479 | 0 | 6,479 | 0.5% | 26 Feb, 2026 |
| 22 | Donna A. Harman | Director | 5,179 | 0 | 5,179 | 0.4% | 12 May, 2026 |
| 23 | Karen E Gowland | Director | 2,118 | 0 | 2,118 | 0.2% | 12 May, 2026 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 20 Aug, 2026 | Donald R. Shirley | Exec. Vp | Disposed S | 12,000 | $250.71 | $3.01Mn | 19,110 | Direct |
| 07 Aug, 2026 | Thomas A Hassfurther | President | Disposed S | 7,063 | $254.00 | $1.79Mn | 202,891 | Direct |
| 03 Aug, 2026 | Thomas A Hassfurther | President | Disposed S | 12,531 | $250.00 | $3.13Mn | 218,751 | Direct |
| 05 Aug, 2026 | Thomas A Hassfurther | President | Disposed S | 8,797 | $257.00 | $2.26Mn | 209,954 | Direct |
| 27 May, 2026 | Mark W Kowlzan | Chairman Ceo | Disposed S | 9,266 | $217.08 | $2.01Mn | 473,610 | Direct |
| 12 May, 2026 | Samuel M Mencoff | Director | Acquired A | 591 | $0.00 | $0 | 270,194 | Direct |
| 12 May, 2026 | Karen E Gowland | Director | Acquired A | 591 | $0.00 | $0 | 2,118 | Direct |
| 12 May, 2026 | Duane C Farrington | Director | Acquired A | 591 | $0.00 | $0 | 7,243 | Direct |
| 12 May, 2026 | Thomas S Souleles | Director | Acquired A | 591 | $0.00 | $0 | 11,202 | Direct |
| 12 May, 2026 | Cheryl K Beebe | Director | Acquired A | 591 | $0.00 | $0 | 15,104 | Direct |
| 12 May, 2026 | Donna A. Harman | Director | Acquired A | 591 | $0.00 | $0 | 5,179 | Direct |
| 12 May, 2026 | Robert C Lyons | Director | Acquired A | 591 | $0.00 | $0 | 13,429 | Direct |
| 12 May, 2026 | Roger B Porter | Director | Acquired A | 591 | $0.00 | $0 | 22,604 | Direct |
| 27 Mar, 2026 | Kent A. Pflederer | Evp Cfo | Acquired A | 5,596 | $0.00 | $0 | 75,303 | Direct |
| 27 Mar, 2026 | Charles J. Carter | Evp Mill Ops. | Acquired A | 8,282 | $0.00 | $0 | 53,496 | Direct |
| 27 Mar, 2026 | Donald R. Shirley | Exec. Vp | Acquired A | 6,254 | $0.00 | $0 | 33,282 | Direct |
| 27 Mar, 2026 | Mark W Kowlzan | Chairman Ceo | Acquired A | 43,010 | $0.00 | $0 | 500,097 | Direct |
| 27 Mar, 2026 | Thomas A Hassfurther | President | Acquired A | 29,778 | $0.00 | $0 | 241,618 | Direct |
| 27 Mar, 2026 | Darla J. Olivier | Svp | Acquired A | 2,260 | $0.00 | $0 | 28,279 | Direct |
| 27 Mar, 2026 | Mark W Kowlzan | Chairman Ceo | Acquired A | 3,292 | $0.00 | $0 | 503,389 | Direct |