NewAmsterdam Pharma Ownership | Who Owns NewAmsterdam Pharma?
NewAmsterdam Pharma Ownership Summary
NewAmsterdam Pharma is owned by 11.17% institutional investors, 0.96% insiders, and 87.88% retail investors. Frazier life sciences management is the largest institutional shareholder, holding 14.81% of NAMS shares. American Funds SMALLCAP World A is the top mutual fund, with 7.93% of its assets in NewAmsterdam Pharma shares.
NAMS Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | NewAmsterdam Pharma | 11.17% | 0.96% | 87.88% |
| Sector | Healthcare Stocks | 35.56% | 12.08% | 52.36% |
| Industry | Biotech Stocks | 35.43% | 12.01% | 52.56% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Frazier life sciences management | 16.94M | 14.81% | $542.37M |
| Capital world investors | 11.11M | 9.71% | $355.60M |
| Ra capital management | 9.55M | 8.35% | $305.70M |
| Fcpm iii services b.v. | 9.20M | 8.04% | $294.46M |
| Fmr | 8.77M | 7.66% | $280.59M |
| Bain capital life sciences investors | 7.31M | 6.39% | $233.88M |
| Wellington management group llp | 5.12M | 4.47% | $163.76M |
| Deerfield management company, l.p. (series c) | 4.26M | 3.73% | $136.52M |
| Viking global investors lp | 4.20M | 3.67% | $134.56M |
| Duquesne family office | 3.07M | 2.68% | $98.28M |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| Medicxi ventures management (jersey) | 2.21M | 42.19% | $74.85M |
| Fcpm iii services b.v. | 9.20M | 40.77% | $294.46M |
| Bain capital life sciences investors | 7.31M | 21.09% | $233.88M |
| Frazier life sciences management | 16.94M | 13.96% | $542.37M |
| Artia global partners lp | 503.94K | 3.56% | $16.13M |
| Ra capital management | 9.55M | 3.24% | $305.70M |
| Duquesne family office | 3.07M | 2.91% | $98.28M |
| Healthinvest partners ab | 248.85K | 2.27% | $8.43M |
| First turn management | 558.34K | 2.00% | $17.87M |
| Deerfield management company, l.p. (series c) | 4.26M | 1.61% | $136.52M |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Fmr | 8.77M | 0.01% | 2.35M |
| Westfield capital management co lp | 2.20M | 0.30% | 2.20M |
| Capital world investors | 11.11M | 0.05% | 1.13M |
| Bnp paribas asset management | 957.44K | 0.04% | 780.43K |
| Ameriprise financial | 753.05K | 0.01% | 600.78K |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Siren | - | - | -765.71K |
| Jennison associates | 2.10M | 0.04% | -648.12K |
| Capital investors | 1.44M | 0.01% | -621.40K |
| Medicxi ventures management (jersey) | 2.21M | 42.19% | -465.54K |
| First turn management | 558.34K | 2.00% | -335.14K |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| Westfield capital management co lp | 2.20M | 0.30% | 2.20M | $70.52M |
| Marshall wace, llp | 264.80K | 0.01% | 264.80K | $8.48M |
| Axa investment managers | 196.78K | 0.02% | 196.78K | $5.60M |
| Victory capital management | 172.66K | 0.00% | 172.66K | $5.53M |
| Kornitzer capital management inc /ks | 139.93K | 0.10% | 139.93K | $4.74M |
Sold Out
| Holder | Change |
|---|---|
| Kilter group | -9.00 |
| Advisor group | -10.00 |
| Principal securities | -13.00 |
| Coldstream capital management | -24.00 |
| Golden state equity partners | -60.00 |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Mar 31, 2026 | 61 | -68.39% | 12,772,651 | -89.23% | 11 | 0.11% | 34 | -69.64% | 14 | -73.08% |
| Dec 31, 2025 | 55 | -62.07% | 12,251,519 | -89.84% | 10 | 0.09% | 32 | -58.44% | 10 | -72.97% |
| Sep 30, 2025 | 43 | -66.67% | 10,963,801 | -90.21% | 9 | 0.10% | 20 | -75.61% | 10 | -62.96% |
| Jun 30, 2025 | 135 | 3.05% | 116,309,195 | 16.74% | 103 | 1.40% | 85 | 11.84% | 28 | -9.68% |
| Mar 31, 2025 | 135 | -3.57% | 111,187,228 | 12.82% | 95 | 0.89% | 78 | -11.36% | 33 | 6.45% |
Top Mutual Funds Shareholders
| Holder | Shares | % Holding | Change |
|---|---|---|---|
| American Funds SMALLCAP World A | 9.27M | 7.93% | 870.00K |
| Vanguard Health Care Inv | 3.95M | 3.38% | 280.70K |
| Capital Group Global Equity Canada F | 2.52M | 2.16% | - |
| Strategic Advisers Fidelity US TtlStk | 2.01M | 1.72% | 14.40K |
| Fidelity Contrafund | 1.68M | 1.44% | 100.03K |
| Polar Capital Biotech S Inc | 1.63M | 1.40% | - |
| Jennison SMid Cap Core Equity | 966.54K | 0.84% | -119.37K |
| American Funds New Economy A | 957.48K | 0.82% | - |
| Capital Group New Economy Comp | 957.48K | 0.82% | - |
| AB Small Cap Growth A | 686.06K | 0.61% | 32.56K |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| Jul 20, 2026 | Kooij Louise Frederika | Chief Accounting Officer | Sell | $92.43K |
| Jul 20, 2026 | Kooij Louise Frederika | Chief Accounting Officer | Sell | $990.03K |
| Jul 20, 2026 | Kooij Louise Frederika | Chief Accounting Officer | Sell | $2.10M |
| Jun 22, 2026 | Kooij Louise Frederika | Chief Accounting Officer | Sell | $9.22K |
| Jun 22, 2026 | Kooij Louise Frederika | Chief Accounting Officer | Sell | $1.20M |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2026 Q3 | - | 3 |
| 2026 Q2 | - | 3 |
| 2026 Q1 | - | 31 |
| 2025 Q4 | - | 3 |
| 2025 Q3 | 3 | 10 |
NAMS Ownership FAQ
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