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
James N. TopperDirector2025-06-251,260$18.26
$23.01kBuy
James N. TopperDirector2025-06-242,520$18.43
$46.45kBuy
Douglas F. KlingChief Operating Officer2025-06-1681,891$19.19
$1.57MSell
James N. TopperDirector2025-06-168,584$19.50
$167.38kBuy
Douglas F. KlingChief Operating Officer2025-06-1618,109$19.75
$357.65kSell
Douglas F. KlingChief Operating Officer2025-06-1621,899$10.90
$238.70kBuy
Douglas F. KlingChief Operating Officer2025-06-1678,101$10.00
$781.01kBuy
Douglas F. KlingChief Operating Officer2025-05-15100,000$10.00
$1.00MBuy
Douglas F. KlingChief Operating Officer2025-04-15100,000$10.00
$1.00MBuy
James N. TopperDirector2025-03-261,135$22.49
$25.52kBuy

1 of 5

NAMS insiders have sold more... subscribe to Premium to read more.
Net Insider Buy/Sell (L12M) Ownership

Be the first to know when NAMS insiders and whales buy or sell their stock.

NAMS Shareholders

What type of owners hold Newamsterdam Pharma Co Nv stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Frazier Life Sciences Management LP14.35%16,116,418$347.15MInstitution
James N. Topper13.03%14,628,133$315.09MInsider
Fcpm III Services Bv9.74%10,935,310$235.55MInstitution
Bain Capital Life Sciences Investors LLC9.55%10,719,110$230.89MInstitution
Nap Bv Forgrowth9.49%10,656,172$229.53MInsider
Bain Capital Life Sciences Investors LLC9.33%10,473,913$225.61MInsider
Ra Capital Management LP9.03%10,138,938$218.39MInstitution
Viking Global Investors LP6.22%6,978,534$150.32MInstitution
Capital World Investors6.06%6,798,598$146.44MInstitution
Deerfield Management Company LP Series C3.66%4,103,957$88.40MInstitution

1 of 3

NAMS vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
NAMS73.20%26.80%Net SellingNet Buying
XENE96.86%3.14%Net BuyingNet Buying
APLS76.70%23.30%Net SellingNet Buying
LGND16.92%83.08%Net SellingNet Buying
IBRX9.01%8.66%Net Buying

Newamsterdam Pharma Co Nv Stock Ownership FAQ

Who owns Newamsterdam Pharma Co Nv?

Newamsterdam Pharma Co Nv (NASDAQ: NAMS) is owned by 99.03% institutional shareholders, 36.26% 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 13.03% of the company. James N. Topper's Newamsterdam Pharma Co Nv shares are currently valued at $324.31M.

If you're new to stock investing, here's how to buy Newamsterdam Pharma Co Nv stock.
WallStreetZen does not provide financial advice and does not issue recommendations or offers to buy stock or sell any security.

Information is provided 'as-is' and solely for informational purposes and is not advice. WallStreetZen does not bear any responsibility for any losses or damage that may occur as a result of reliance on this data.