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NASDAQ: NAMS
Newamsterdam Pharma Co Nv Stock Ownership - Who owns Newamsterdam Pharma Co Nv?

OverviewForecastEarningsRevenueDividendOwnership

Insider buying vs selling

Have Newamsterdam Pharma Co Nv insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Louise Frederika KooijCAO2026-07-202,915$31.71
$92.43kSell
Louise Frederika KooijCAO2026-07-2025,000$11.90
$297.50kBuy
Louise Frederika KooijCAO2026-07-2080,000$11.17
$893.60kBuy
Louise Frederika KooijCAO2026-07-2070,200$29.96
$2.10MSell
Louise Frederika KooijCAO2026-07-2031,885$31.05
$990.03kSell
Louise Frederika KooijChief Accounting Officer2026-06-2225,000$10.90
$272.50kBuy
Louise Frederika KooijChief Accounting Officer2026-06-22300$30.73
$9.22kSell
Louise Frederika KooijChief Accounting Officer2026-06-2239,700$30.20
$1.20MSell
Louise Frederika KooijChief Accounting Officer2026-06-2215,000$11.90
$178.50kBuy
Louise Frederika KooijChief Accounting Officer2026-05-2660,000$10.00
$600.00kBuy

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Net Insider Buy/Sell (L12M) Ownership

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NAMS Shareholders

What type of owners hold Newamsterdam Pharma Co Nv stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Frazier Life Sciences Management LP14.17%16,943,774$468.83MInstitution
James N. Topper12.24%14,630,524$404.83MInsider
Capital World Investors9.29%11,109,034$307.39MInstitution
Nap Bv Forgrowth8.91%10,656,172$294.86MInsider
Bain Capital Life Sciences Investors LLC8.76%10,473,913$289.81MInsider
Ra Capital Management LP7.99%9,550,191$264.25MInstitution
Fcpm III Services Bv7.70%9,198,900$254.53MInstitution
Fmr LLC7.33%8,765,811$242.55MInstitution
Bain Capital Life Sciences Investors LLC6.11%7,306,566$202.17MInstitution
Wellington Management Group LLP4.28%5,115,818$141.55MInstitution

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NAMS vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
NAMS75.24%24.76%Net SellingNet Buying
CLDX85.13%14.87%Net Buying
MBX46.52%53.48%Net BuyingNet Selling
QURE86.02%10.00%Net SellingNet Selling
ARQT77.41%22.59%Net SellingNet Selling
View Top Biotech Stocks

Newamsterdam Pharma Co Nv Stock Ownership FAQ

Who owns Newamsterdam Pharma Co Nv?

Newamsterdam Pharma Co Nv (NASDAQ: NAMS) is owned by 103.41% institutional shareholders, 34.02% Newamsterdam Pharma Co Nv insiders, and 0.00% retail investors. James N. Topper is the largest individual Newamsterdam Pharma Co Nv shareholder, owning 14.63M shares representing 12.24% of the company. James N. Topper's Newamsterdam Pharma Co Nv shares are currently valued at $409.07M.

If you're new to stock investing, here's how to buy Newamsterdam Pharma Co Nv stock.
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