Philip R. Martens sold Graphic Packaging Holding Co. (GPK) shares on the open market twice in the last year, for a total of $1.4 million. His most recent sale occurred on August 4, 2025. These GPK insider sales rank 4200th among nearly 12,000 individual insiders, well below the average of $8.6 million across about six transactions. Martens made no open market purchases in the period.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Aug. 1, 2025 | GRAPHIC PACKAGING HOLDING CO | $GPK | MARTENS PHILIP R | Not found | S | Common Stock | 56737 | $21.84 | 33,826.0000 | 305,100,000 | 62.65% | 0.02% |
| Aug. 4, 2025 | GRAPHIC PACKAGING HOLDING CO | $GPK | MARTENS PHILIP R | Not found | S | Common Stock | 7015 | $21.80 | 26,811.0000 | 305,100,000 | 20.74% | 0.00% |
| May 21, 2025 | GRAPHIC PACKAGING HOLDING CO | $GPK | MARTENS PHILIP R | Not found | A | Common Stock | 7015 | $0.00 | 90,563.0000 | 305,100,000 | 8.40% | 0.00% |
| May 29, 2024 | GRAPHIC PACKAGING HOLDING CO | $GPK | MARTENS PHILIP R | Not found | A | Common Stock | 5885 | $0.00 | 83,548.0000 | 309,100,000 | 7.58% | 0.00% |
| June 14, 2023 | Trinseo PLC | $TSEOF | MARTENS PHILIP R | Not found | F | Ordinary Shares | 886 | $14.38 | 9,414.0000 | 35,000,000 | 8.60% | 0.00% |
| June 14, 2023 | Trinseo PLC | $TSEOF | MARTENS PHILIP R | Not found | F | Ordinary Shares | 917 | $14.38 | 9,383.0000 | 35,000,000 | 8.90% | 0.00% |
| May 24, 2023 | GRAPHIC PACKAGING HOLDING CO | $GPK | MARTENS PHILIP R | Director | A | Common Stock | 6397 | $0.00 | 77,663.0000 | 309,500,000 | 8.98% | 0.00% |