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

Insider buying vs selling

Have Newamsterdam Pharma Co Nv insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Louise Frederika KooijChief Accounting Officer2026-01-2634,400$10.90
$374.96kBuy
Louise Frederika KooijChief Accounting Officer2026-01-26309$33.45
$10.34kSell
Louise Frederika KooijChief Accounting Officer2026-01-2634,091$32.77
$1.12MSell
Louise Frederika KooijChief Accounting Officer2026-01-2312,767$34.37
$438.80kSell
Louise Frederika KooijChief Accounting Officer2026-01-2338,172$10.90
$416.07kBuy
Louise Frederika KooijChief Accounting Officer2026-01-2325,405$33.44
$849.54kSell
Mayur Ian SomaiyaChief Financial Officer2026-01-2115,422$33.25
$512.78kSell
Mayur Ian SomaiyaChief Financial Officer2026-01-2139,784$9.26
$368.40kBuy
Mayur Ian SomaiyaChief Financial Officer2026-01-2124,362$33.80
$823.44kSell
Mayur Ian SomaiyaChief Financial Officer2026-01-2060,216$9.26
$557.60kBuy

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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 LP14.73%16,701,956$540.64MInstitution
James N. Topper12.90%14,630,524$473.59MInsider
Bain Capital Life Sciences Investors LLC9.45%10,719,110$346.98MInstitution
Nap Bv Forgrowth9.40%10,656,172$344.94MInsider
Bain Capital Life Sciences Investors LLC9.24%10,473,913$339.04MInsider
Ra Capital Management LP8.94%10,138,938$328.20MInstitution
Capital World Investors8.66%9,822,711$317.96MInstitution
Fcpm III Services Bv8.12%9,212,384$298.20MInstitution
Viking Global Investors LP5.71%6,475,534$209.61MInstitution
Fmr LLC4.88%5,535,293$179.18MInstitution

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NAMS vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
NAMS74.74%25.26%Net SellingNet Selling
LQDA50.19%49.81%Net SellingNet Selling
LGND18.29%81.71%Net SellingNet Selling
VKTX63.02%9.09%Net SellingNet Selling
CNTA90.30%9.70%Net BuyingNet Selling

Newamsterdam Pharma Co Nv Stock Ownership FAQ

Who owns Newamsterdam Pharma Co Nv?

Newamsterdam Pharma Co Nv (NASDAQ: NAMS) is owned by 106.34% institutional shareholders, 35.93% 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 12.90% of the company. James N. Topper's Newamsterdam Pharma Co Nv shares are currently valued at $477.39M.

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