144 0002004379 XXXXXXXX LIVE 0001936258 NewAmsterdam Pharma Co N.V. 001-41562 GOOIMEER 2-35 NARRDEN P7 1411 DC 35 206 2971 Kooij Louise Frederika Officer Ordinary shares, nominal value EUR 0.12 per share Cooperatieve Rabobank U.A.

Croeselaan 18 Utrecht P7 3521 CB

18073 434655.65 112628458 09/03/2025 Nasdaq Global Market Ordinary shares, nominal value EUR 0.12 per share 09/02/2025 Option Exercise NewAmsterdam Pharma Company N.V. N 18073 09/02/2025 Cash N Louise Kooij

Gooimeer 2-35 Naarden P7 1411 DC

Ordinary shares, nominal value EUR 0.12 per share 08/25/2025 8269 205547.82 09/03/2025 /s/ Louise Kooij