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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 Officer2026-06-22300$30.73
$9.22kSell
Louise Frederika KooijChief Accounting Officer2026-06-2225,000$10.90
$272.50kBuy
Louise Frederika KooijChief Accounting Officer2026-06-2215,000$11.90
$178.50kBuy
Louise Frederika KooijChief Accounting Officer2026-06-2239,700$30.20
$1.20MSell
Louise Frederika KooijChief Accounting Officer2026-05-265,000$10.90
$54.50kBuy
Louise Frederika KooijChief Accounting Officer2026-05-2660,000$10.00
$600.00kBuy
Louise Frederika KooijChief Accounting Officer2026-05-2665,000$35.69
$2.32MSell
Louis G. LangeDirector2026-03-1144,173$30.41
$1.34MSell
Louis G. LangeDirector2026-03-11446$31.23
$13.93kSell
Louis G. LangeDirector2026-03-0944,619$11.50
$513.12kBuy

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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 LP14.49%16,943,774$626.75MInstitution
James N. Topper12.51%14,630,524$541.18MInsider
Capital World Investors9.50%11,109,034$410.92MInstitution
Nap Bv Forgrowth9.12%10,656,172$394.17MInsider
Bain Capital Life Sciences Investors LLC8.96%10,473,913$387.43MInsider
Ra Capital Management LP8.17%9,550,191$353.26MInstitution
Fcpm III Services Bv7.87%9,198,900$340.27MInstitution
Fmr LLC7.50%8,765,811$324.25MInstitution
Bain Capital Life Sciences Investors LLC6.25%7,306,566$270.27MInstitution
Wellington Management Group LLP4.38%5,115,818$189.23MInstitution

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NAMS vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
NAMS75.24%24.76%Net SellingNet Buying
DNLI62.37%37.63%Net Selling
TNGX68.39%31.61%Net SellingNet Buying
DYN84.70%15.30%Net SellingNet Selling
ACAD71.81%28.19%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 105.74% institutional shareholders, 34.79% 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 12.51% of the company. James N. Topper's Newamsterdam Pharma Co Nv shares are currently valued at $524.21M.

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