NAMS · NewAmsterdam Pharma Company N.V. Ordinary Shares
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| ForGrowth NAP B.V. | ▼ Sell | Open Market | 10,656,172 Shares held | 12/30/2024 | View profile |
| James N. Topper | ▲ Buy | Open Market | 3,028,524 Shares held | 9/15/2025 | View profile |
| Michael H. Davidson Chief Executive Officer | ▼ Sell | Open Market | 174,144 Shares held | 3/2/2026 | View profile |
| Johannes Jacob Pieter Kastelein Chief Scientific Officer | ▼ Sell | Open Market | 69,302 Shares held | 3/9/2026 | View profile |
| Mayur Ian Somaiya Chief Financial Officer | ▼ Sell | Open Market | 58,382 Shares held | 1/21/2026 | View profile |
| Michael F. Marino III See Remarks | ▲ Buy | Grant | 55,000 Shares held | 6/1/2025 | View profile |
| Douglas F. Kling Chief Operating Officer | ▼ Sell | Open Market | 44,000 Shares held | 7/16/2025 | View profile |
| JONES WILLIAM A JR Chief Commercial Officer | ▲ Buy | Grant | 43,000 Shares held | 1/7/2025 | View profile |
| Louise Frederika Kooij Chief Accounting Officer | ▼ Sell | Open Market | 24,353 Shares held | 7/20/2026 | View profile |
| Audet Juliette Berangere Chief Business Officer | ▲ Buy | Grant | 15,104 Shares held | 1/7/2025 | View profile |
| Adele M. Gulfo | ▲ Buy | Grant | 14,260 Shares held | 1/7/2026 | View profile |
| Mark C. McKenna | ▲ Buy | Grant | 10,360 Shares held | 1/7/2026 | View profile |
| John W. Smither Director | ▲ Buy | Grant | 10,360 Shares held | 1/7/2026 | View profile |
| Louis G. Lange | ▼ Sell | Open Market | 10,360 Shares held | 3/11/2026 | View profile |
| van der Kamp Hilde Johanna | ▲ Buy | Grant | 10,360 Shares held | 1/7/2026 | View profile |
| William Lewis | ▲ Buy | Grant | 10,360 Shares held | 1/7/2026 | View profile |
Transaction History
| Louise Frederika Kooij | ▲ Buy | Option Exercise | 25,000 | $298K | 7/20/2026 |
| Louise Frederika Kooij | ▲ Buy | Option Exercise | 80,000 | $894K | 7/20/2026 |
| Louise Frederika Kooij | ▼ Sell | Open Market | 70,200 | $2.1M | 7/20/2026 |
| Louise Frederika Kooij | ▼ Sell | Open Market | 31,885 | $990K | 7/20/2026 |
| Louise Frederika Kooij | ▼ Sell | Open Market | 2,915 | $92K | 7/20/2026 |
| Louise Frederika Kooij | ▲ Buy | Option Exercise | 25,000 | $273K | 6/22/2026 |
| Louise Frederika Kooij | ▲ Buy | Option Exercise | 15,000 | $179K | 6/22/2026 |
| Louise Frederika Kooij | ▼ Sell | Open Market | 39,700 | $1.2M | 6/22/2026 |
| Louise Frederika Kooij | ▼ Sell | Open Market | 300 | $9K | 6/22/2026 |
| Louise Frederika Kooij | ▲ Buy | Option Exercise | 60,000 | $600K | 5/26/2026 |
| Louise Frederika Kooij | ▲ Buy | Option Exercise | 5,000 | $55K | 5/26/2026 |
| Louise Frederika Kooij | ▼ Sell | Open Market | 65,000 | $2.3M | 5/26/2026 |
| Louis G. Lange | ▼ Sell | Open Market | 44,173 | $1.3M | 3/11/2026 |
| Louis G. Lange | ▼ Sell | Open Market | 446 | $14K | 3/11/2026 |
| Louis G. Lange | ▼ Sell | Other | 44,619 | $513K | 3/9/2026 |
| Johannes Jacob Pieter Kastelein | ▲ Buy | Option Exercise | 101,409 | — | 3/9/2026 |
| Johannes Jacob Pieter Kastelein | ▼ Sell | Open Market | 101,409 | $3.1M | 3/9/2026 |
| Louis G. Lange | ▼ Sell | Open Market | 28,186 | $829K | 3/6/2026 |
| Johannes Jacob Pieter Kastelein | ▲ Buy | Option Exercise | 94,124 | — | 3/6/2026 |
| Johannes Jacob Pieter Kastelein | ▼ Sell | Open Market | 94,124 | $2.9M | 3/6/2026 |
| Johannes Jacob Pieter Kastelein | ▲ Buy | Option Exercise | 104,467 | — | 3/5/2026 |
| Johannes Jacob Pieter Kastelein | ▼ Sell | Open Market | 104,467 | $3.2M | 3/5/2026 |
| Michael H. Davidson | ▲ Buy | Option Exercise | 443,707 | — | 3/2/2026 |
| Michael H. Davidson | ▼ Sell | Open Market | 443,707 | $14.8M | 3/2/2026 |
| Michael H. Davidson | ▲ Buy | Option Exercise | 183,332 | — | 2/26/2026 |
| Michael H. Davidson | ▼ Sell | Open Market | 165,408 | $5.6M | 2/26/2026 |
| Michael H. Davidson | ▼ Sell | Open Market | 17,924 | $617K | 2/26/2026 |
| Michael H. Davidson | ▲ Buy | Option Exercise | 58,253 | — | 2/25/2026 |
| Michael H. Davidson | ▼ Sell | Open Market | 46,517 | $1.6M | 2/25/2026 |
| Michael H. Davidson | ▼ Sell | Open Market | 10,436 | $375K | 2/25/2026 |
| Michael H. Davidson | ▼ Sell | Open Market | 1,300 | $48K | 2/25/2026 |
| Michael H. Davidson | ▲ Buy | Option Exercise | 64,708 | — | 2/24/2026 |
| Michael H. Davidson | ▼ Sell | Open Market | 61,547 | $2.2M | 2/24/2026 |
| Michael H. Davidson | ▼ Sell | Open Market | 3,161 | $115K | 2/24/2026 |
| Johannes Jacob Pieter Kastelein | ▼ Sell | Open Market | 14,692 | $514K | 2/20/2026 |
| Johannes Jacob Pieter Kastelein | ▼ Sell | Open Market | 30,789 | $1.1M | 2/20/2026 |
| Louise Frederika Kooij | ▲ Buy | Option Exercise | 32,612 | $355K | 1/28/2026 |
| Louise Frederika Kooij | ▼ Sell | Open Market | 32,612 | $1.0M | 1/28/2026 |
| Louise Frederika Kooij | ▲ Buy | Option Exercise | 39,816 | $434K | 1/27/2026 |
| Louise Frederika Kooij | ▼ Sell | Open Market | 39,816 | $1.3M | 1/27/2026 |
| Louise Frederika Kooij | ▲ Buy | Option Exercise | 34,400 | $375K | 1/26/2026 |
| Louise Frederika Kooij | ▼ Sell | Open Market | 34,091 | $1.1M | 1/26/2026 |
| Louise Frederika Kooij | ▼ Sell | Open Market | 309 | $10K | 1/26/2026 |
| Louise Frederika Kooij | ▲ Buy | Option Exercise | 38,172 | $416K | 1/23/2026 |
| Louise Frederika Kooij | ▼ Sell | Open Market | 25,405 | $850K | 1/23/2026 |
| Louise Frederika Kooij | ▼ Sell | Open Market | 12,767 | $439K | 1/23/2026 |
| Mayur Ian Somaiya | ▲ Buy | Option Exercise | 39,784 | $368K | 1/21/2026 |
| Mayur Ian Somaiya | ▼ Sell | Open Market | 15,422 | $513K | 1/21/2026 |
| Mayur Ian Somaiya | ▼ Sell | Open Market | 24,362 | $823K | 1/21/2026 |
| Mayur Ian Somaiya | ▲ Buy | Option Exercise | 60,216 | $558K | 1/20/2026 |
| Mayur Ian Somaiya | ▼ Sell | Open Market | 900 | $28K | 1/20/2026 |
| Mayur Ian Somaiya | ▼ Sell | Open Market | 39,712 | $1.3M | 1/20/2026 |
| Mayur Ian Somaiya | ▼ Sell | Open Market | 19,604 | $635K | 1/20/2026 |
| Johannes Jacob Pieter Kastelein | ▲ Buy | Grant | 25,500 | — | 1/7/2026 |
| van der Kamp Hilde Johanna | ▲ Buy | Grant | 3,400 | — | 1/7/2026 |
| Adele M. Gulfo | ▲ Buy | Grant | 3,400 | — | 1/7/2026 |
| Michael H. Davidson | ▼ Sell | Open Market | 11,582 | — | 1/7/2026 |
| Michael H. Davidson | ▲ Buy | Grant | 81,000 | — | 1/7/2026 |
| William Lewis | ▲ Buy | Grant | 3,400 | — | 1/7/2026 |
| John W. Smither | ▲ Buy | Grant | 3,400 | — | 1/7/2026 |
| Mark C. McKenna | ▲ Buy | Grant | 3,400 | — | 1/7/2026 |
| Louis G. Lange | ▲ Buy | Grant | 3,400 | — | 1/7/2026 |
| Louise Frederika Kooij | ▲ Buy | Grant | 12,000 | — | 1/7/2026 |
| Mayur Ian Somaiya | ▲ Buy | Grant | 25,500 | — | 1/7/2026 |
| Johannes Jacob Pieter Kastelein | ▼ Sell | Open Market | 6,000 | $200K | 1/5/2026 |
| Louise Frederika Kooij | ▼ Sell | Open Market | 2,647 | $88K | 1/5/2026 |
| Mayur Ian Somaiya | ▼ Sell | Open Market | 5,118 | $170K | 1/5/2026 |
| Louise Frederika Kooij | ▲ Buy | Option Exercise | 38,872 | $389K | 12/26/2025 |
| Louise Frederika Kooij | ▲ Buy | Option Exercise | 5,000 | $55K | 12/26/2025 |
| Louise Frederika Kooij | ▼ Sell | Open Market | 43,872 | $1.5M | 12/26/2025 |
| Louise Frederika Kooij | ▲ Buy | Option Exercise | 26,011 | $260K | 12/24/2025 |
| Louise Frederika Kooij | ▼ Sell | Open Market | 26,011 | $928K | 12/24/2025 |
| Louise Frederika Kooij | ▲ Buy | Option Exercise | 75,117 | $751K | 12/23/2025 |
| Louise Frederika Kooij | ▼ Sell | Open Market | 75,117 | $2.7M | 12/23/2025 |
| James N. Topper | ▲ Buy | Open Market | 660 | $16K | 9/15/2025 |
| Louise Frederika Kooij | ▲ Buy | Option Exercise | 150,000 | $1.5M | 9/9/2025 |
| Louise Frederika Kooij | ▼ Sell | Open Market | 53,104 | $1.3M | 9/9/2025 |
| Louise Frederika Kooij | ▼ Sell | Open Market | 96,896 | $2.5M | 9/9/2025 |
| James N. Topper | ▲ Buy | Open Market | 1,260 | $31K | 9/8/2025 |
| Louise Frederika Kooij | ▼ Sell | Open Market | 18,073 | $453K | 9/3/2025 |
| Louise Frederika Kooij | ▲ Buy | Option Exercise | 18,073 | — | 9/2/2025 |
| Louise Frederika Kooij | ▼ Sell | Open Market | 8,269 | $206K | 8/25/2025 |
| Johannes Jacob Pieter Kastelein | ▼ Sell | Open Market | 42,342 | $1.1M | 8/22/2025 |
| Johannes Jacob Pieter Kastelein | ▼ Sell | Open Market | 7,658 | $195K | 8/22/2025 |
| Johannes Jacob Pieter Kastelein | ▼ Sell | Open Market | 50,000 | $1.2M | 8/21/2025 |
| James N. Topper | ▲ Buy | Open Market | 471 | $11K | 8/11/2025 |
| Douglas F. Kling | ▲ Buy | Option Exercise | 51,043 | $556K | 7/16/2025 |
| Douglas F. Kling | ▼ Sell | Open Market | 51,043 | $1.1M | 7/16/2025 |
| Douglas F. Kling | ▲ Buy | Option Exercise | 47,569 | $519K | 7/15/2025 |
| Douglas F. Kling | ▼ Sell | Open Market | 44,025 | $941K | 7/15/2025 |
| Douglas F. Kling | ▼ Sell | Open Market | 3,544 | $78K | 7/15/2025 |
| James N. Topper | ▲ Buy | Open Market | 1,260 | $23K | 6/25/2025 |
| James N. Topper | ▲ Buy | Open Market | 2,520 | $46K | 6/24/2025 |
| Douglas F. Kling | ▲ Buy | Option Exercise | 78,101 | $781K | 6/16/2025 |
| Douglas F. Kling | ▲ Buy | Option Exercise | 21,899 | $239K | 6/16/2025 |
| Douglas F. Kling | ▼ Sell | Open Market | 81,891 | $1.6M | 6/16/2025 |
| Douglas F. Kling | ▼ Sell | Open Market | 18,109 | $358K | 6/16/2025 |
| James N. Topper | ▲ Buy | Open Market | 8,584 | $167K | 6/16/2025 |
| Michael F. Marino III | ▲ Buy | Grant | 55,000 | — | 6/1/2025 |
| Louis G. Lange | ▲ Buy | Option Exercise | 68 | $0 | 6/1/2025 |
| Douglas F. Kling | ▲ Buy | Option Exercise | 100,000 | $1.0M | 5/15/2025 |
| Douglas F. Kling | ▼ Sell | Open Market | 100,000 | — | 5/15/2025 |
| Louis G. Lange | ▲ Buy | Option Exercise | 69 | $0 | 5/1/2025 |
| Douglas F. Kling | ▲ Buy | Option Exercise | 100,000 | $1.0M | 4/15/2025 |
| Douglas F. Kling | ▼ Sell | Open Market | 99,090 | — | 4/15/2025 |
| Douglas F. Kling | ▼ Sell | Open Market | 910 | — | 4/15/2025 |
| Adele M. Gulfo | ▲ Buy | Grant | 10,860 | — | 4/15/2025 |
| Louis G. Lange | ▲ Buy | Option Exercise | 69 | $0 | 4/14/2025 |
| James N. Topper | ▲ Buy | Open Market | 1,135 | $26K | 3/26/2025 |
| Louise Frederika Kooij | ▲ Buy | Option Exercise | 8,269 | $0 | 3/26/2025 |
| Louis G. Lange | ▲ Buy | Option Exercise | 3,102 | $0 | 3/26/2025 |
| Johannes Jacob Pieter Kastelein | ▲ Buy | Grant | 19,302 | $0 | 3/26/2025 |
| Johannes Jacob Pieter Kastelein | ▲ Buy | Option Exercise | 45,481 | $0 | 3/26/2025 |
| Douglas F. Kling | ▲ Buy | Option Exercise | 16,539 | $0 | 3/26/2025 |
| Douglas F. Kling | ▼ Sell | Open Market | 16,539 | — | 3/26/2025 |
| Michael H. Davidson | ▲ Buy | Grant | 30,992 | $0 | 3/26/2025 |
| Michael H. Davidson | ▲ Buy | Option Exercise | 38,394 | $0 | 3/26/2025 |
| Michael H. Davidson | ▼ Sell | Open Market | 12,258 | — | 3/26/2025 |
| Johannes Jacob Pieter Kastelein | ▲ Buy | Option Exercise | 150,000 | — | 3/24/2025 |
| Douglas F. Kling | ▲ Buy | Option Exercise | 88,112 | — | 3/17/2025 |
| Douglas F. Kling | ▲ Buy | Option Exercise | 11,888 | $119K | 3/17/2025 |
| Douglas F. Kling | ▼ Sell | Open Market | 100,000 | — | 3/17/2025 |
| James N. Topper | ▲ Buy | Open Market | 4,005 | $84K | 3/4/2025 |
| Louise Frederika Kooij | ▲ Buy | Option Exercise | 150,000 | — | 3/4/2025 |
| Louise Frederika Kooij | ▼ Sell | Open Market | 150,000 | $3.1M | 3/4/2025 |
| Douglas F. Kling | ▲ Buy | Option Exercise | 9,218 | — | 2/19/2025 |
| Douglas F. Kling | ▼ Sell | Open Market | 9,218 | — | 2/19/2025 |
| Douglas F. Kling | ▲ Buy | Option Exercise | 90,782 | — | 2/18/2025 |
| Douglas F. Kling | ▼ Sell | Open Market | 90,782 | — | 2/18/2025 |
| Douglas F. Kling | ▼ Sell | Open Market | 4,664 | — | 1/30/2025 |
| Douglas F. Kling | ▲ Buy | Option Exercise | 13,578 | — | 1/30/2025 |
| Douglas F. Kling | ▼ Sell | Open Market | 8,914 | — | 1/30/2025 |
| Douglas F. Kling | ▲ Buy | Option Exercise | 56,863 | — | 1/29/2025 |
| Douglas F. Kling | ▼ Sell | Open Market | 56,863 | — | 1/29/2025 |
| Mayur Ian Somaiya | ▲ Buy | Option Exercise | 14,900 | $138K | 1/28/2025 |
| Mayur Ian Somaiya | ▼ Sell | Open Market | 11,495 | — | 1/28/2025 |
| Mayur Ian Somaiya | ▼ Sell | Open Market | 3,405 | — | 1/28/2025 |
| Douglas F. Kling | ▲ Buy | Option Exercise | 25,385 | — | 1/28/2025 |
| Douglas F. Kling | ▼ Sell | Open Market | 20,237 | — | 1/28/2025 |
| Douglas F. Kling | ▼ Sell | Open Market | 5,148 | — | 1/28/2025 |
| Mayur Ian Somaiya | ▲ Buy | Option Exercise | 46,983 | $435K | 1/27/2025 |
| Mayur Ian Somaiya | ▼ Sell | Open Market | 33,679 | — | 1/27/2025 |
| Mayur Ian Somaiya | ▼ Sell | Open Market | 13,304 | — | 1/27/2025 |
| Douglas F. Kling | ▲ Buy | Option Exercise | 104,174 | — | 1/27/2025 |
| Douglas F. Kling | ▼ Sell | Open Market | 80,359 | — | 1/27/2025 |
| Douglas F. Kling | ▼ Sell | Open Market | 23,815 | — | 1/27/2025 |
| John W. Smither | ▲ Buy | Grant | 6,960 | — | 1/7/2025 |
| Mark C. McKenna | ▲ Buy | Grant | 6,960 | — | 1/7/2025 |
| William Lewis | ▲ Buy | Grant | 6,960 | — | 1/7/2025 |
| van der Kamp Hilde Johanna | ▲ Buy | Grant | 6,960 | — | 1/7/2025 |
| Louis G. Lange | ▲ Buy | Grant | 6,960 | — | 1/7/2025 |
| Louise Frederika Kooij | ▲ Buy | Grant | 15,000 | — | 1/7/2025 |
| Michael H. Davidson | ▲ Buy | Grant | 123,529 | — | 1/7/2025 |
| Johannes Jacob Pieter Kastelein | ▲ Buy | Grant | 34,000 | — | 1/7/2025 |
| Audet Juliette Berangere | ▲ Buy | Grant | 14,000 | — | 1/7/2025 |
| JONES WILLIAM A JR | ▲ Buy | Grant | 43,000 | — | 1/7/2025 |
| Douglas F. Kling | ▲ Buy | Grant | 44,000 | — | 1/7/2025 |
| Mayur Ian Somaiya | ▲ Buy | Grant | 38,000 | — | 1/7/2025 |
| ForGrowth NAP B.V. | ▼ Sell | Open Market | 29,846 | $762K | 12/30/2024 |
| ForGrowth NAP B.V. | ▼ Sell | Open Market | 41,472 | $1.1M | 12/27/2024 |
| ForGrowth NAP B.V. | ▼ Sell | Open Market | 33,438 | $870K | 12/26/2024 |
| ForGrowth NAP B.V. | ▼ Sell | Open Market | 16,164 | $415K | 12/24/2024 |
| ForGrowth NAP B.V. | ▼ Sell | Open Market | 25,132 | $641K | 12/23/2024 |
| ForGrowth NAP B.V. | ▼ Sell | Open Market | 44,143 | $1.1M | 12/20/2024 |
| ForGrowth NAP B.V. | ▼ Sell | Open Market | 5,629 | $147K | 12/20/2024 |
| ForGrowth NAP B.V. | ▼ Sell | Open Market | 56,506 | $1.4M | 12/19/2024 |
| ForGrowth NAP B.V. | ▼ Sell | Open Market | 54,518 | $1.4M | 12/18/2024 |
| ForGrowth NAP B.V. | ▼ Sell | Open Market | 46,210 | $1.2M | 12/18/2024 |
| ForGrowth NAP B.V. | ▼ Sell | Open Market | 66,648 | $1.7M | 12/17/2024 |
| ForGrowth NAP B.V. | ▼ Sell | Open Market | 47,736 | $1.3M | 12/17/2024 |
| ForGrowth NAP B.V. | ▼ Sell | Open Market | 1,096 | $27K | 12/16/2024 |
| ForGrowth NAP B.V. | ▼ Sell | Open Market | 25,751 | $644K | 12/13/2024 |
| ForGrowth NAP B.V. | ▼ Sell | Open Market | 140,048 | $3.5M | 12/12/2024 |
| ForGrowth NAP B.V. | ▼ Sell | Open Market | 25,963 | $680K | 12/12/2024 |
| ForGrowth NAP B.V. | ▼ Sell | Open Market | 130,561 | $3.3M | 12/11/2024 |
| ForGrowth NAP B.V. | ▼ Sell | Open Market | 18,583 | $491K | 12/11/2024 |
| ForGrowth NAP B.V. | ▼ Sell | Open Market | 4,894 | $133K | 12/11/2024 |
| ForGrowth NAP B.V. | ▼ Sell | Open Market | 259,739 | $6.6M | 12/10/2024 |
| ForGrowth NAP B.V. | ▼ Sell | Open Market | 48,511 | $1.3M | 12/10/2024 |
| ForGrowth NAP B.V. | ▼ Sell | Open Market | 33,273 | $834K | 11/18/2024 |
| ForGrowth NAP B.V. | ▼ Sell | Open Market | 8,530 | $213K | 11/15/2024 |
| ForGrowth NAP B.V. | ▼ Sell | Open Market | 9,832 | $246K | 11/14/2024 |
| ForGrowth NAP B.V. | ▼ Sell | Open Market | 1,066 | $27K | 11/13/2024 |
| Louise Frederika Kooij | ▼ Sell | Open Market | 45,000 | $707K | 10/1/2024 |
| Louise Frederika Kooij | ▲ Buy | Option Exercise | 45,000 | — | 9/27/2024 |
| Audet Juliette Berangere | ▲ Buy | Open Market | 1,104 | $17K | 9/26/2024 |
| Michael H. Davidson | ▲ Buy | Open Market | 5,000 | $81K | 8/20/2024 |
| Michael H. Davidson | ▲ Buy | Open Market | 5,000 | $86K | 6/20/2024 |
| James N. Topper | ▲ Buy | Open Market | 8,429 | $181K | 3/26/2024 |
| Johannes Jacob Pieter Kastelein | ▲ Buy | Option Exercise | 201,673 | — | 3/26/2024 |
| Johannes Jacob Pieter Kastelein | ▼ Sell | Tax Withholding | 11,197 | $254K | 3/26/2024 |
| Johannes Jacob Pieter Kastelein | ▼ Sell | Open Market | 190,476 | $4.1M | 3/26/2024 |
| Louis G. Lange | ▲ Buy | Open Market | 5,000 | $95K | 2/13/2024 |