InsiderTrades

Somaiya Mayur Ian

SEC CIK 1760303 · EDGAR

Buying vs selling by month open-market trades, last 24 months, NAMS
BoughtSold

Companies

TickerCompanyTitleHoldingBoughtSoldTradesFirstLast
NAMSNewAmsterdam Pharma Co N.V.CFO 98.2K — $3.43M 72025-01-072026-01-20

Most active insiders at NAMS, 12 months

#InsiderTitleBoughtSold
1 Davidson Michael H.CEO, Dir $226.5K$25.33M
2 Kooij Louise FrederikaCAO —$16.75M
3 Kastelein Johannes Jacob PieterCSO, Dir —$14.26M
4 Somaiya Mayur IanCFO —$3.43M
5 LANGE LOUIS GDir —$2.19M
6 Smither John WDir —$40.5K
7 Gunning Robert WilliamVP, Ctrl ——
8 van der Kamp Hilde JohannaDir ——
9 McKenna Mark C.Dir ——
10 Gulfo Adele M.Dir ——

Transactions 7

Type
Reset
X Filed Traded Ticker Company Insider Title Type Price Qty Owned ΔOwn Value
DMT 2026-01-22 2026-01-20+ NAMS NewAmsterdam Pharma Co N.V. Somaiya Mayur Ian CFO M - OptEx $9.26 +100.0K 98.2K New +$926.0K
DMT 2026-01-22 2026-01-20+ NAMS NewAmsterdam Pharma Co N.V. Somaiya Mayur Ian CFO S - Sale+OE $32.61 -100.0K 117.7K -46% -$3.26M
DT 2026-01-07 2026-01-07 NAMS NewAmsterdam Pharma Co N.V. Somaiya Mayur Ian CFO A - Grant — +25.5K 58.4K +78% —
DT 2026-01-07 2026-01-05 NAMS NewAmsterdam Pharma Co N.V. Somaiya Mayur Ian CFO S - Sale $33.25 -5,118 32.9K -13% -$170.2K
DMT 2025-01-29 2025-01-27+ NAMS NewAmsterdam Pharma Co N.V. Somaiya Mayur Ian CFO S - Sale+OE — -61.9K 51.3K -55% —
DMT 2025-01-29 2025-01-27+ NAMS NewAmsterdam Pharma Co N.V. Somaiya Mayur Ian CFO M - OptEx $9.26 +61.9K 52.9K New +$573.0K
2025-01-07 2025-01-07 NAMS NewAmsterdam Pharma Co N.V. Somaiya Mayur Ian CFO A - Grant — +38.0K 38.0K New —

Purchase Sale Sale after option exercise All abbreviations