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 |
|---|---|---|---|---|---|
| Frazier Life Sciences Management, L.P. | 16,701,956 | $475.0M | 14.23% | +94,882+0.6% | Added |
| Bain Capital Life Sciences Investors, LLC | 10,719,110 | $304.9M | 20.23% | 00.0% | Unchanged |
| Ra Capital Management, L.P. | 10,138,938 | $288.4M | 3.55% | 00.0% | Unchanged |
| Capital World Investors | 9,822,711 | $279.4M | 0.04% | +1,434,986+17.1% | Added |
| FCPM III Services B.V. | 9,212,384 | $262.0M | 52.36% | −1,419,729−13.4% | Reduced |
| Viking Global Investors LPSuperinvestorViking Global Investors | 6,475,534 | $184.2M | 0.48% | −503,000−7.2% | Reduced |
| FMR LLC | 5,535,293 | $157.4M | 0.01% | +3,630,743+190.6% | Added |
| Deerfield Management Company, L.P. (Series C) | 4,266,693 | $121.3M | 1.86% | −849,260−16.6% | Reduced |
| Jennison Associates LLC | 4,198,554 | $119.4M | 0.07% | +1,252,451+42.5% | Added |
| Wellington Management Group LLP | 4,020,126 | $114.3M | 0.02% | +697,129+21.0% | Added |
| Polar Capital Holdings Plc | 2,911,634 | $82.8M | 0.40% | +393,855+15.6% | Added |
| Medicxi Ventures Management (Jersey) Ltd | 2,869,565 | $81.6M | 10.96% | 00.0% | Unchanged |
| Adage Capital Partners GP, L.L.C. | 2,576,631 | $73.3M | 0.12% | −436,378−14.5% | Reduced |
| Cormorant Asset Management, LP | 2,175,000 | $61.9M | 4.27% | 00.0% | Unchanged |
| Alliancebernstein L.P. | 2,141,778 | $60.9M | 0.02% | −189,805−8.1% | Reduced |
| Janus Henderson Group PLC | 2,117,075 | $60.1M | 0.03% | +155,015+7.9% | Added |
| Capital International Investors | 2,062,535 | $58.7M | 0.01% | 00.0% | Unchanged |
| Duquesne Family Office LLCSuperinvestorDuquesne Family Office | 1,923,700 | $54.7M | 1.39% | +1,091,525+131.2% | Added |
| Maverick Capital LtdSuperinvestorMaverick Capital | 1,504,747 | $42.8M | 0.57% | −27,127−1.8% | Reduced |
| Morgan Stanley | 1,497,479 | $42.6M | 0.00% | +859,772+134.8% | Added |
| JPMorgan Chase & Co | 1,302,498 | $37.0M | 0.00% | −156,399−10.7% | Reduced |
| Pictet Asset Management Holding SA | 1,292,150 | $36.7M | 0.04% | −524,575−28.9% | Reduced |
| Woodline Partners LP | 1,157,867 | $32.9M | 0.16% | −739,330−39.0% | Reduced |
| Goldman Sachs Group Inc | 880,552 | $25.0M | 0.00% | −69,428−7.3% | Reduced |
| TimesSquare Capital Management, LLC | 837,368 | $23.8M | 0.34% | −35,169−4.0% | Reduced |
| UBS Group AG | 768,520 | $21.9M | 0.00% | +140,801+22.4% | Added |
| Siren, L.L.C. | 765,705 | $21.8M | 0.85% | −428,535−35.9% | Reduced |
| First Turn Management, LLC | 716,971 | $20.4M | 3.06% | +195,874+37.6% | Added |
| Standard Life Aberdeen plc | 661,946 | $18.8M | 0.03% | −73,086−9.9% | Reduced |
| Decheng Capital LLC | 657,051 | $18.7M | 3.26% | −112,949−14.7% | Reduced |
| American Century Companies Inc | 624,285 | $17.8M | 0.01% | +91,369+17.1% | Added |
| BlackRock, Inc. | 622,515 | $17.7M | 0.00% | +50,842+8.9% | Added |
| Rock Springs Capital Management LP | 595,929 | $16.9M | 0.99% | +59,818+11.2% | Added |
| Eversept Partners, LP | 488,592 | $13.9M | 1.06% | +74,162+17.9% | Added |
| Bank of America Corp | 472,100 | $13.4M | 0.00% | −11,904−2.5% | Reduced |
| Franklin Resources Inc | 405,825 | $11.5M | 0.00% | +71,613+21.4% | Added |
| Handelsbanken Fonder AB | 405,800 | $11.5M | 0.04% | +64,200+18.8% | Added |
| Bank of New York Mellon Corp | 332,998 | $9.47M | 0.00% | −19,954−5.7% | Reduced |
| Slate Path Capital LP | 319,000 | $9.07M | 0.14% | 00.0% | Unchanged |
| ArrowMark Colorado Holdings LLC | 310,999 | $8.84M | 0.16% | −47,615−13.3% | Reduced |
| Affinity Asset Advisors, LLC | 275,000 | $7.82M | 0.73% | 00.0% | Unchanged |
| Citadel Advisors LLC | 206,461 | $5.87M | 0.00% | −113,682−35.5% | Reduced |
| HealthInvest Partners AB | 193,625 | $5.85M | 2.17% | +36,402+23.2% | Added |
| AXA Investment Managers S.A. | 196,782 | $5.60M | 0.02% | +196,782 | New |
| Artia Global Partners LP | 194,838 | $5.54M | 0.97% | +167,519+613.2% | Added |
| Nicholas Investment Partners, LP | 177,538 | $5.05M | 0.39% | +61,799+53.4% | Added |
| DCF Advisers, LLC | 175,250 | $4.98M | 1.89% | +2,750+1.6% | Added |
| Vanguard Group Inc | 172,466 | $4.90M | 0.00% | −6,380−3.6% | Reduced |
| Saturn V Capital Management LLC | 153,147 | $4.36M | 0.96% | −67,548−30.6% | Reduced |
| Susquehanna International Group, LLP | 151,837 | $4.32M | 0.01% | +62,010+69.0% | Added |
| StemPoint Capital LP | 150,573 | $4.28M | 0.86% | −2,079−1.4% | Reduced |
| Kennedy Capital Management, Inc. | 146,715 | $4.17M | 0.09% | +133,040+972.9% | Added |
| Ameriprise Financial Inc | 145,327 | $4.13M | 0.00% | −62,754−30.2% | Reduced |
| Price T Rowe Associates Inc | 138,329 | $3.94M | 0.00% | +138,329 | New |
| ADAR1 Capital Management, LLC | 114,359 | $3.25M | 0.32% | +2,000+1.8% | Added |
| Ikarian Capital, LLC | 106,800 | $3.04M | 0.69% | −100,000−48.4% | Reduced |
| Invesco Ltd. | 104,676 | $2.98M | 0.00% | −29,359−21.9% | Reduced |
| Geode Capital Management, LLC | 101,958 | $2.90M | 0.00% | +2,501+2.5% | Added |
| Swiss National Bank | 87,100 | $2.48M | 0.00% | +3,200+3.8% | Added |
| CenterBook Partners LP | 70,613 | $2.01M | 0.10% | +2,423+3.6% | Added |
| Deutsche Bank AG | 68,425 | $1.95M | 0.00% | +333+0.5% | Added |
| State Street Corp | 63,810 | $1.81M | 0.00% | −17,494−21.5% | Reduced |
| California State Teachers Retirement System | 47,862 | $1.36M | 0.00% | 00.0% | Unchanged |
| Lisanti Capital Growth, LLC | 47,445 | $1.35M | 0.33% | −1,665−3.4% | Reduced |
| Legal & General Group Plc | 45,738 | $1.30M | 0.00% | +1,503+3.4% | Added |
| Fred Alger Management, LLC | 41,264 | $1.17M | 0.00% | +19,227+87.2% | Added |
| Boothbay Fund Management, LLC | 40,714 | $1.16M | 0.03% | −19,340−32.2% | Reduced |
| Gilder Gagnon Howe & Co LLC | 36,384 | $1.03M | 0.01% | +36,384 | New |
| Readystate Asset Management LP | 34,353 | $977.0K | 0.05% | −196,841−85.1% | Reduced |
| Knights of Columbus Asset Advisors LLC | 33,610 | $955.9K | 0.05% | +777+2.4% | Added |
| Northern Trust Corp | 33,299 | $947.0K | 0.00% | +2,988+9.9% | Added |
| HighVista Strategies LLC | 31,831 | $905.3K | 0.22% | +12,557+65.1% | Added |
| BNP Paribas Arbitrage, SA | 27,328 | $777.2K | 0.00% | −1,949−6.7% | Reduced |
| New York State Common Retirement Fund | 26,680 | $758.8K | 0.00% | +26,680 | New |
| Royal Bank of Canada | 26,502 | $754.0K | 0.00% | +8,170+44.6% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 25,936 | $737.6K | 0.00% | −5,447−17.4% | Reduced |
| Yarbrough Capital, LLC | 23,960 | $681.4K | 0.02% | 00.0% | Unchanged |
| Legato Capital Management LLC | 23,370 | $664.6K | 0.07% | +4,581+24.4% | Added |
| Manufacturers Life Insurance Company, The | 22,505 | $640.0K | 0.00% | +11,637+107.1% | Added |
| Squarepoint Ops LLC | 20,959 | $596.1K | 0.00% | +6,680+46.8% | Added |
| China Universal Asset Management Co., Ltd. | 19,742 | $561.5K | 0.05% | −2,807−12.4% | Reduced |
| Voya Investment Management LLC | 19,300 | $548.9K | 0.00% | +19,300 | New |
| TD Asset Management Inc | 18,000 | $511.9K | 0.00% | +18,000 | New |
| Keybank National Association | 16,014 | $455.4K | 0.00% | +16,014 | New |
| PTM Wealth Management, LLC | 12,900 | $419.0K | 0.25% | 00.0% | Unchanged |
| Bellevue Group AG | 14,611 | $415.5K | 0.01% | −5,944−28.9% | Reduced |
| Omers Administration Corp | 13,900 | $395.3K | 0.00% | +13,900 | New |
| Verition Fund Management LLC | 13,828 | $393.3K | 0.00% | 00.0% | Unchanged |
| Arizona State Retirement System | 13,251 | $376.9K | 0.00% | +483+3.8% | Added |
| Bank of Montreal | 12,388 | $352.3K | 0.00% | +12,388 | New |
| Jefferies Financial Group Inc. | 12,000 | $341.3K | 0.00% | +12,000 | New |
| Letko, Brosseau & Associates Inc | 11,775 | $334.9K | 0.01% | 00.0% | Unchanged |
| Teacher Retirement System of Texas | 10,783 | $306.7K | 0.00% | −917−7.8% | Reduced |
| AQR Capital Management LLC | 10,196 | $290.0K | 0.00% | +10,196 | New |
| KLP Kapitalforvaltning AS | 9,100 | $258.8K | 0.00% | 00.0% | Unchanged |
| Mesirow Financial Investment Management, Inc. | 8,215 | $233.6K | 0.00% | +8,215 | New |
| CIBC Private Wealth Group, LLC | 7,640 | $217.3K | 0.00% | 00.0% | Unchanged |
| XTX Topco Ltd | 7,579 | $215.5K | 0.01% | +7,579 | New |
| Avanza Fonder AB | 7,505 | $213.4K | 0.01% | 00.0% | Unchanged |
| Marshall Financial Group Inc | 7,500 | $213.3K | 0.06% | +7,500 | New |