As of September 29, 2026, the three largest insider holders of GPK are Michael P Doss (President And Ceo, 2.24Mn shares), Stephen R. Scherger (Evp And Cfo, 587.36K shares), Lauren S. Tashma (Former Evp, Gc Secretary, 331.55K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Michael P Doss | President And Ceo | 902,963 | 1,333,927 | 2,236,890 | 48.0% | 01 Aug, 2025 |
| 2 | Stephen R. Scherger | Evp And Cfo | 587,362 | 0 | 587,362 | 12.6% | 24 Feb, 2025 |
| 3 | Lauren S. Tashma | Former Evp, Gc Secretary | 526,567 | 0 | 526,567 | 11.3% | 18 Feb, 2026 |
| 4 | Joseph P Yost | Evp President, Americas | 279,929 | 0 | 279,929 | 6.0% | 02 Mar, 2026 |
| 5 | Michael James Farrell | Svp, Paperboard Mfg. | 146,726 | 0 | 146,726 | 3.1% | 02 Mar, 2026 |
| 6 | Larry M Venturelli | Director | 130,507 | 0 | 130,507 | 2.8% | 21 May, 2026 |
| 7 | Margie Kay Bidlingmaier | Evp And President, Americas | 105,661 | 0 | 105,661 | 2.3% | 24 Feb, 2025 |
| 8 | Robert Hagemann | Director | 97,569 | 0 | 97,569 | 2.1% | 11 May, 2026 |
| 9 | Lynn A Wentworth | Director | 92,021 | 0 | 92,021 | 2.0% | 21 Nov, 2022 |
| 10 | Charles D Lischer | Svp, Cao And Interim Cfo | 80,737 | 0 | 80,737 | 1.7% | 02 Mar, 2026 |
| 11 | Paul Carrico | Director | 62,695 | 0 | 62,695 | 1.3% | 25 May, 2022 |
| 12 | Elizabeth Spence | Evp, Human Resources | 59,238 | 0 | 59,238 | 1.3% | 02 Mar, 2026 |
| 13 | Robbert Rietbroek | President And Ceo | 44,278 | 0 | 44,278 | 0.9% | 04 Mar, 2026 |
| 14 | Philip R Martens | Director | 43,072 | 0 | 43,072 | 0.9% | 21 May, 2026 |
| 15 | Laurie Brlas | Director | 35,558 | 0 | 35,558 | 0.8% | 21 May, 2026 |
| 16 | Jeffrey Stafeil | Director | 34,139 | 0 | 34,139 | 0.7% | 21 May, 2026 |
| 17 | Mary K Rhinehart | Director | 27,234 | 0 | 27,234 | 0.6% | 30 May, 2024 |
| 18 | Alessandro Maselli | Director | 23,276 | 0 | 23,276 | 0.5% | 21 May, 2026 |
| 19 | Andrew P Callahan | Director | 23,276 | 0 | 23,276 | 0.5% | 21 May, 2026 |
| 20 | Scott Lebeau | Evp, Paperboard Manufacturing | 22,838 | 0 | 22,838 | 0.5% | 02 Mar, 2026 |
| 21 | Nikhil Narvekar | Svp And Cio | 1,845 | 0 | 1,845 | 0.0% | 02 Mar, 2026 |
| 22 | Scott Fallan | Svp President, International | 985 | 0 | 985 | 0.0% | 02 Apr, 2026 |
| 23 | Jean Francois Roche | Svp And President, Emea | 84 | 0 | 84 | 0.0% | 02 Aug, 2022 |
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 |
|---|---|---|---|---|---|---|---|---|
| 29 Jul, 2026 | Charles D Lischer | Svp, Cao And Interim Cfo | Acquired A | 44,131 | $0.00 | $0 | 44,131 | Direct |
| 29 Jul, 2026 | Scott Fallan | Svp President, International | Acquired A | 44,131 | $0.00 | $0 | 44,131 | Direct |
| 29 Jul, 2026 | Nikhil Narvekar | Svp And Cio | Acquired A | 22,066 | $0.00 | $0 | 22,066 | Direct |
| 01 Jul, 2026 | Daniel S. Fishbein | Evp, Gen Counsel Secretary | Acquired A | 40,214 | $0.00 | $0 | 40,214 | Direct |
| 01 Jul, 2026 | Daniel S. Fishbein | Evp, Gen Counsel Secretary | Acquired A | 188,502 | $0.00 | $0 | 188,502 | Direct |
| 20 May, 2026 | Larry M Venturelli | Director | Acquired A | 16,261 | $0.00 | $0 | 130,507 | Direct |
| 20 May, 2026 | Philip R Martens | Director | Acquired A | 16,261 | $0.00 | $0 | 43,072 | Direct |
| 20 May, 2026 | Jeffrey Stafeil | Director | Acquired P | 16,261 | $0.00 | $0 | 34,139 | Direct |
| 20 May, 2026 | Laurie Brlas | Director | Acquired A | 16,261 | $0.00 | $0 | 35,558 | Direct |
| 20 May, 2026 | Andrew P Callahan | Director | Acquired A | 16,261 | $0.00 | $0 | 23,276 | Direct |
| 20 May, 2026 | Alessandro Maselli | Director | Acquired A | 16,261 | $0.00 | $0 | 23,276 | Direct |
| 07 May, 2026 | Jeffrey Stafeil | Director | Acquired P | 17,878 | $11.19 | $200.00K | 17,878 | Direct |
| 08 May, 2026 | Robert Hagemann | Director | Acquired P | 14,000 | $11.00 | $153.99K | 97,569 | Direct |
| 01 Apr, 2026 | Scott Fallan | Svp President, International | Acquired M | 1,258 | $0.00 | $0 | 1,577 | Direct |
| 01 Apr, 2026 | Scott Fallan | Svp President, International | Disposed F | 592 | $9.59 | $5.68K | 985 | Direct |
| 01 Apr, 2026 | Scott Fallan | Svp President, International | Disposed M | 1,258 | $0.00 | $0 | 2,556 | Direct |
| 04 Mar, 2026 | Larry M Venturelli | Director | Acquired P | 10,935 | $11.37 | $124.28K | 114,246 | Direct |
| 04 Mar, 2026 | Larry M Venturelli | Director | Acquired P | 3,896 | $11.36 | $44.26K | 118,142 | Indirect |
| 04 Mar, 2026 | Larry M Venturelli | Director | Acquired P | 2,100 | $11.36 | $23.85K | 120,242 | Indirect |
| 04 Mar, 2026 | Larry M Venturelli | Director | Acquired P | 600 | $11.36 | $6.81K | 120,842 | Indirect |