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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
Louis G. LangeDirector2026-03-11446$31.23
$13.93kSell
Louis G. LangeDirector2026-03-1144,173$30.41
$1.34MSell
Johannes Jacob Pieter KasteleinChief Scientific Officer2026-03-09101,409$30.29
$3.07MSell
Louis G. LangeDirector2026-03-0944,619$11.50
$513.12kBuy
Louis G. LangeDirector2026-03-0628,186$29.41
$828.95kSell
Johannes Jacob Pieter KasteleinChief Scientific Officer2026-03-0694,124$30.32
$2.85MSell
Johannes Jacob Pieter KasteleinChief Scientific Officer2026-03-05104,467$30.30
$3.17MSell
Michael H. DavidsonChief Executive Officer2026-03-02443,707$33.25
$14.75MSell
Michael H. DavidsonChief Executive Officer2026-02-2617,924$34.44
$617.30kSell
Michael H. DavidsonChief Executive Officer2026-02-26165,408$33.63
$5.56MSell

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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$656.23MInstitution
James N. Topper12.51%14,630,524$566.64MInsider
Nap Bv Forgrowth9.12%10,656,172$412.71MInsider
Bain Capital Life Sciences Investors LLC8.96%10,473,913$405.65MInsider
Capital World Investors8.54%9,984,000$386.68MInstitution
Ra Capital Management LP8.17%9,550,191$369.88MInstitution
Fcpm III Services Bv7.87%9,198,900$356.27MInstitution
Bain Capital Life Sciences Investors LLC6.25%7,306,566$282.98MInstitution
Fmr LLC5.49%6,412,984$248.37MInstitution
Wellington Management Group LLP4.31%5,033,175$194.93MInstitution

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NAMS vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
NAMS74.47%25.53%Net SellingNet Selling
KNSA55.85%9.27%Net SellingNet Selling
LGND18.32%81.68%Net SellingNet Selling
DNTH59.29%40.71%Net BuyingNet Buying
MANE0.00%16.86%Net Buying
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 101.48% 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 $566.64M.

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