NewAmsterdam Pharma Co N.V.
NAMS- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001936258
In the last 90 days, NewAmsterdam Pharma Co N.V. insiders filed 1 open-market purchase and 3 sales; 194 institutions reported holding it in 13F filings for Q2 2026, worth $4.13B in total; 3 superinvestors hold it, including Viking Global Investors and Maverick Capital.
Other share classesNAMSW
13F holders, Q3 2025
Institutional positions in NewAmsterdam Pharma Co N.V. as of Sep 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 137
- +6 vs. Q2 2025
- Shares held
- 120.6M
- +4.22M (+3.6%) vs. Q2 2025
- Total value
- $3.43B
- +$1.32B (+62.7%) vs. Q2 2025
- New holders
- 21
- 48 more added
- Sold out
- 15
- 40 more reduced
Compare with Q2 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting NAMS on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 194 | $4.13B |
| Q1 2026 | 171 | $3.96B |
| Q4 2025 | 187 | $4.19B |
| Q3 2025 | 137 | $3.43B |
| Q2 2025 | 131 | $2.11B |
| Q1 2025 | 126 | $2.28B |
| Q4 2024 | 131 | $2.53B |
| Q3 2024 | 100 | $1.28B |
| Q2 2024 | 90 | $1.38B |
| Q1 2024 | 76 | $1.71B |
| Q4 2023 | 32 | $691.4M |
| Q3 2023 | 35 | $464.1M |
| Q2 2023 | 29 | $580.6M |
| Q1 2023 | 19 | $444.9M |
| Q4 2022 | 14 | $362.2M |
| Q3 2022 | 0 | $0 |
| Q2 2022 | 0 | $0 |
| Q1 2022 | 0 | $0 |
| Q4 2021 | 0 | $0 |
| Q3 2021 | 0 | $0 |
| Q2 2021 | 0 | $0 |
| Q1 2021 | 0 | $0 |
Institutions, Q3 2025
Shares, value and share of portfolio for each institution holding NewAmsterdam Pharma Co N.V.; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Handelsbanken Fonder AB | 405,800 | $11.5M | 0.04% | +64,200+18.8% | Added |
| Franklin Resources Inc | 405,825 | $11.5M | 0.00% | +71,613+21.4% | Added |
| Bank of America Corp | 472,100 | $13.4M | 0.00% | −11,904−2.5% | Reduced |
| Eversept Partners, LP | 488,592 | $13.9M | 1.06% | +74,162+17.9% | Added |
| Rock Springs Capital Management LP | 595,929 | $16.9M | 0.99% | +59,818+11.2% | Added |
| BlackRock, Inc. | 622,515 | $17.7M | 0.00% | +50,842+8.9% | Added |
| American Century Companies Inc | 624,285 | $17.8M | 0.01% | +91,369+17.1% | Added |
| Decheng Capital LLC | 657,051 | $18.7M | 3.26% | −112,949−14.7% | Reduced |
| Standard Life Aberdeen plc | 661,946 | $18.8M | 0.03% | −73,086−9.9% | Reduced |
| First Turn Management, LLC | 716,971 | $20.4M | 3.06% | +195,874+37.6% | Added |
| Siren, L.L.C. | 765,705 | $21.8M | 0.85% | −428,535−35.9% | Reduced |
| UBS Group AG | 768,520 | $21.9M | 0.00% | +140,801+22.4% | Added |
| TimesSquare Capital Management, LLC | 837,368 | $23.8M | 0.34% | −35,169−4.0% | Reduced |
| Goldman Sachs Group Inc | 880,552 | $25.0M | 0.00% | −69,428−7.3% | Reduced |
| Woodline Partners LP | 1,157,867 | $32.9M | 0.16% | −739,330−39.0% | Reduced |
| Pictet Asset Management Holding SA | 1,292,150 | $36.7M | 0.04% | −524,575−28.9% | Reduced |
| JPMorgan Chase & Co | 1,302,498 | $37.0M | 0.00% | −156,399−10.7% | Reduced |
| Morgan Stanley | 1,497,479 | $42.6M | 0.00% | +859,772+134.8% | Added |
| Maverick Capital LtdSuperinvestorMaverick Capital | 1,504,747 | $42.8M | 0.57% | −27,127−1.8% | Reduced |
| Duquesne Family Office LLCSuperinvestorDuquesne Family Office | 1,923,700 | $54.7M | 1.39% | +1,091,525+131.2% | Added |
| Capital International Investors | 2,062,535 | $58.7M | 0.01% | 00.0% | Unchanged |
| Janus Henderson Group PLC | 2,117,075 | $60.1M | 0.03% | +155,015+7.9% | Added |
| Alliancebernstein L.P. | 2,141,778 | $60.9M | 0.02% | −189,805−8.1% | Reduced |
| Cormorant Asset Management, LP | 2,175,000 | $61.9M | 4.27% | 00.0% | Unchanged |
| Adage Capital Partners GP, L.L.C. | 2,576,631 | $73.3M | 0.12% | −436,378−14.5% | Reduced |
| Medicxi Ventures Management (Jersey) Ltd | 2,869,565 | $81.6M | 10.96% | 00.0% | Unchanged |
| Polar Capital Holdings Plc | 2,911,634 | $82.8M | 0.40% | +393,855+15.6% | Added |
| Wellington Management Group LLP | 4,020,126 | $114.3M | 0.02% | +697,129+21.0% | Added |
| Jennison Associates LLC | 4,198,554 | $119.4M | 0.07% | +1,252,451+42.5% | Added |
| Deerfield Management Company, L.P. (Series C) | 4,266,693 | $121.3M | 1.86% | −849,260−16.6% | Reduced |
| FMR LLC | 5,535,293 | $157.4M | 0.01% | +3,630,743+190.6% | Added |
| Viking Global Investors LPSuperinvestorViking Global Investors | 6,475,534 | $184.2M | 0.48% | −503,000−7.2% | Reduced |
| FCPM III Services B.V. | 9,212,384 | $262.0M | 52.36% | −1,419,729−13.4% | Reduced |
| Capital World Investors | 9,822,711 | $279.4M | 0.04% | +1,434,986+17.1% | Added |
| Ra Capital Management, L.P. | 10,138,938 | $288.4M | 3.55% | 00.0% | Unchanged |
| Bain Capital Life Sciences Investors, LLC | 10,719,110 | $304.9M | 20.23% | 00.0% | Unchanged |
| Frazier Life Sciences Management, L.P. | 16,701,956 | $475.0M | 14.23% | +94,882+0.6% | Added |
| UBS Asset Management Americas Inc | 0 | $0 | 0.00% | −320,804−100.0% | Sold out |
| AXA S.A. | 0 | $0 | 0.00% | −242,916−100.0% | Sold out |
| First Trust Advisors LP | 0 | $0 | 0.00% | −131,430−100.0% | Sold out |
| Alps Advisors Inc | 0 | $0 | 0.00% | −60,551−100.0% | Sold out |
| Exome Asset Management LLC | 0 | $0 | 0.00% | −36,574−100.0% | Sold out |
| Two Sigma Investments, LP | 0 | $0 | 0.00% | −28,392−100.0% | Sold out |
| Millennium Management LLC | 0 | $0 | 0.00% | −27,345−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −26,208−100.0% | Sold out |
| Algert Global LLC | 0 | $0 | 0.00% | −18,140−100.0% | Sold out |
| Prelude Capital Management, LLC | 0 | $0 | 0.00% | −13,420−100.0% | Sold out |
| Hudson Bay Capital Management LP | 0 | $0 | 0.00% | −10,739−100.0% | Sold out |
| Caption Management, LLC | 0 | $0 | 0.00% | −6,000−100.0% | Sold out |
| Kiker Wealth Management, LLC | 0 | $0 | 0.00% | −2,000−100.0% | Sold out |
| Caitong International Asset Management Co., Ltd | 0 | $0 | 0.00% | −595−100.0% | Sold out |
| Raymond James Financial Inc | 0 | $0 | 0.00% | −500−100.0% | Sold out |