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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 KooijChief Accounting Officer2025-08-258,269$24.86
$205.57kSell
Johannes Jacob Pieter KasteleinChief Scientific Officer2025-08-2242,342$25.08
$1.06MSell
Johannes Jacob Pieter KasteleinChief Scientific Officer2025-08-227,658$25.49
$195.20kSell
Johannes Jacob Pieter KasteleinChief Scientific Officer2025-08-2150,000$24.29
$1.21MSell
James N. TopperDirector2025-08-11471$23.98
$11.29kBuy
Douglas F. KlingChief Operating Officer2025-07-1651,043$21.10
$1.08MSell
Douglas F. KlingChief Operating Officer2025-07-1651,043$10.90
$556.37kBuy
Douglas F. KlingChief Operating Officer2025-07-1544,025$21.38
$941.25kSell
Douglas F. KlingChief Operating Officer2025-07-153,544$22.12
$78.39kSell
Douglas F. KlingChief Operating Officer2025-07-1547,569$10.90
$518.50kBuy

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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 LP14.75%16,607,074$406.38MInstitution
James N. Topper12.99%14,628,604$357.96MInsider
Bain Capital Life Sciences Investors LLC9.52%10,719,110$262.30MInstitution
Nap Bv Forgrowth9.46%10,656,172$260.76MInsider
Fcpm III Services Bv9.44%10,632,113$260.17MInstitution
Bain Capital Life Sciences Investors LLC9.30%10,473,913$256.30MInsider
Ra Capital Management LP9.00%10,138,938$248.10MInstitution
Capital World Investors7.45%8,387,725$205.25MInstitution
Viking Global Investors LP6.20%6,978,534$170.76MInstitution
Deerfield Management Company LP4.54%5,115,953$125.19MInstitution

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NAMS vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
NAMS74.13%25.87%Net SellingNet Selling
IMVT48.52%51.48%Net BuyingNet Selling
CRNX89.08%10.92%Net BuyingNet Selling
CPRX82.68%15.90%Net BuyingNet Selling
KNSA53.73%9.46%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 103.30% institutional shareholders, 36.05% 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 12.99% of the company. James N. Topper's Newamsterdam Pharma Co Nv shares are currently valued at $350.36M.

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