Legal Insider Trading Data | Free and Professional Subscription Services | Insider Insights urn:uuid:90b5a0ea-8ca1-4922-7adb-01b8655ee8ca 2026-05-13T13:39:33-04:00 Jonathan Moreland Profit from legal insider trading. InsiderInsights.com provides free insider trading data tools and resources, and professional grade subscription based real time Form 4 data, analysis and services NAMS: LANGE LOUIS G (DIR) Sold (S) 44,619 Shares of NEWAMSTERDAM PHARMA CO N V for $30.41-$31.23 on 3/11 urn:uuid:125b8566-a7aa-a911-8a1e-ba3a18a71363 2026-03-12T16:25:23-04:00 NAMS: LANGE LOUIS G (DIR) Exercised 44,619 Options (OB) of NEWAMSTERDAM PHARMA CO N V for $11.50 on 3/9, and Kept Them All urn:uuid:a472165c-bcae-a4f0-133c-6a80b7442c53 2026-03-10T20:58:01-04:00 NAMS: LANGE LOUIS G (DIR) Sold (S) 28,186 Shares of NEWAMSTERDAM PHARMA CO N V for $29.41 on 3/6 urn:uuid:a8a184e0-296b-7feb-8316-3cd98e1e31b3 2026-03-10T20:58:01-04:00 NAMS: KASTELEIN JOHANNES JACOB PIETER (DIR) Sold (AS) 300k Shares of NEWAMSTERDAM PHARMA CO N V for $30.29 on 3/5-3/9 urn:uuid:ab5bf867-2a8a-6b4c-41e6-22f4940b6dfe 2026-03-09T20:18:01-04:00 NAMS: KASTELEIN JOHANNES JACOB PIETER (DIR) Acquired (JB) 300k Shares of NEWAMSTERDAM PHARMA CO N V for $0.00 on 3/5-3/9 urn:uuid:33cab660-cc2c-331f-3577-2b8ff70107a8 2026-03-09T20:18:01-04:00 NAMS: DAVIDSON MICHAEL H (CEO,DIR) Sold (S) 443,707 Shares of NEWAMSTERDAM PHARMA CO N V for $33.25 on 3/2 urn:uuid:3d85e1dc-1b13-1b38-a070-77a77780c69a 2026-03-02T18:08:05-05:00 NAMS: DAVIDSON MICHAEL H (CEO,DIR) Acquired (JB) 443,707 Shares of NEWAMSTERDAM PHARMA CO N V for $0.00 on 3/2 urn:uuid:0726b735-57f1-ff3c-5f45-5688c61483ee 2026-03-02T18:08:05-05:00 NAMS: DAVIDSON MICHAEL H (CEO,DIR) Sold (AS) 306,293 Shares of NEWAMSTERDAM PHARMA CO N V for $33.63-$34.44 on 2/24-2/26 urn:uuid:b829908c-7de7-47be-acf6-a85015f902e8 2026-02-26T21:40:55-05:00 NAMS: DAVIDSON MICHAEL H (CEO,DIR) Acquired (JB) 306,293 Shares of NEWAMSTERDAM PHARMA CO N V for $0.00 on 2/24-2/26 urn:uuid:3bf6d2e2-aa7f-0fb5-0720-8f494dc0a4c5 2026-02-26T21:40:55-05:00 NAMS: KASTELEIN JOHANNES JACOB PIETER (DIR) Sold (S) 45,481 Shares of NEWAMSTERDAM PHARMA CO N V for $35.00-$35.46 on 2/20 urn:uuid:bb52ea43-50ae-0e8e-1c01-ddd6a0e8b853 2026-02-24T16:40:11-05:00