NAMS NewAmsterdam Pharma Company N.V.
NewAmsterdam Pharma Company N.V. (NAMS) Institutional Ownership
What the institutions did with NAMS last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
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Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.
Largest holders
| Manager | Shares | % of reported |
|---|---|---|
| Frazier Life Sciences Management, L.P. | 18.6M | 15.1% |
| Capital World Investors | 12.2M | 9.9% |
| FMR LLC | 10.3M | 8.4% |
| RA CAPITAL MANAGEMENT, L.P. | 9.9M | 8.0% |
| FCPM III SERVICES B.V. | 8.5M | 6.9% |
| DEERFIELD MANAGEMENT COMPANY, L.P. | 4.4M | 3.5% |
| VIKING GLOBAL INVESTORS LP | 4.2M | 3.4% |
| Bain Capital Life Sciences Investors, LLC | 3.9M | 3.2% |
| MAVERICK CAPITAL LTD | 3.3M | 2.7% |
| Duquesne Family Office LLC | 3.1M | 2.5% |
| Jupiter Topco LLC | 2.5M | 2.1% |
| Medicxi Ventures Management (Jersey) Ltd | 2.2M | 1.8% |
| JENNISON ASSOCIATES LLC | 2.1M | 1.7% |
| Orbis Allan Gray Ltd | 1.7M | 1.4% |
| Polar Capital Holdings Plc | 1.7M | 1.4% |
| Capital International Investors | 1.7M | 1.4% |
| GOLDMAN SACHS GROUP INC | 1.5M | 1.3% |
| WESTFIELD CAPITAL MANAGEMENT CO LP | 1.5M | 1.2% |
| Castle Hook Partners LP | 1.4M | 1.1% |
| ALLIANCEBERNSTEIN L.P. | 1.3M | 1.0% |
| AMERIPRISE FINANCIAL INC | 1.3M | 1.0% |
| PRICE T ROWE ASSOCIATES INC /MD/ | 1.2M | 0.9% |
| JPMORGAN CHASE & CO | 1.1M | 0.9% |
| Aberdeen Group plc | 1.1M | 0.9% |
| BlackRock, Inc. | 1.1M | 0.9% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| WELLINGTON MANAGEMENT GROUP LLP | Reduced | 5.1M | 218.7K | -4.9M |
| Bain Capital Life Sciences Investors, LLC | Reduced | 7.3M | 3.9M | -3.4M |
| Orbis Allan Gray Ltd | New | 0 | 1.7M | +1.7M |
| Frazier Life Sciences Management, L.P. | Increased | 16.9M | 18.6M | +1.6M |
| FMR LLC | Increased | 8.8M | 10.3M | +1.6M |
| PRICE T ROWE ASSOCIATES INC /MD/ | New | 0 | 1.2M | +1.2M |
| Capital World Investors | Increased | 11.1M | 12.2M | +1.1M |
| Polar Capital Holdings Plc | Reduced | 2.8M | 1.7M | -1.1M |
| MAVERICK CAPITAL LTD | Increased | 2.2M | 3.3M | +1.1M |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Increased | 17.8K | 754.3K | +736.5K |
| FCPM III SERVICES B.V. | Reduced | 9.2M | 8.5M | -708.5K |
| WESTFIELD CAPITAL MANAGEMENT CO LP | Reduced | 2.2M | 1.5M | -666.4K |
| JENNISON ASSOCIATES LLC | Reduced | 2.8M | 2.1M | -648.1K |
| Logos Global Management LP | Sold Out | 600.0K | 0 | -600.0K |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | Reduced | 1.1M | 550.0K | -556.6K |
| AMERIPRISE FINANCIAL INC | Increased | 753.1K | 1.3M | +500.5K |
| Medicxi Ventures Management (Jersey) Ltd | Reduced | 2.7M | 2.2M | -465.5K |
| UBS Group AG | Reduced | 795.0K | 344.5K | -450.5K |
| Cormorant Asset Management, LP | Reduced | 950.0K | 500.0K | -450.0K |
| GOLDMAN SACHS GROUP INC | Reduced | 1.9M | 1.5M | -401.5K |
| HRT FINANCIAL LP | New | 0 | 349.8K | +349.8K |
| RA CAPITAL MANAGEMENT, L.P. | Increased | 9.6M | 9.9M | +333.3K |
| Castle Hook Partners LP | Increased | 1.0M | 1.4M | +328.4K |
| JANE STREET GROUP, LLC | Increased | 165.2K | 474.2K | +309.0K |
| ExodusPoint Capital Management, LP | New | 0 | 304.3K | +304.3K |
| Handelsbanken Fonder AB | Reduced | 418.9K | 122.4K | -296.5K |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | Sold Out | 285.3K | 0 | -285.3K |
| STEMPOINT CAPITAL LP | Reduced | 361.3K | 77.6K | -283.7K |
| Capital International Investors | Increased | 1.4M | 1.7M | +282.4K |
| Aberdeen Group plc | Increased | 837.0K | 1.1M | +265.8K |
| MARSHALL WACE, LLP | Sold Out | 264.8K | 0 | -264.8K |
| JPMORGAN CHASE & CO | Increased | 884.2K | 1.1M | +248.7K |
| Affinity Asset Advisors, LLC | Increased | 275.0K | 520.0K | +245.0K |
| FIRST TRUST ADVISORS LP | Reduced | 267.1K | 43.1K | -224.0K |
| FRANKLIN RESOURCES INC | Increased | 770.2K | 993.9K | +223.8K |
| MILLENNIUM MANAGEMENT LLC | Increased | 303.8K | 501.6K | +197.8K |
| BlackRock, Inc. | Increased | 886.6K | 1.1M | +177.1K |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | Reduced | 957.4K | 781.1K | -176.3K |
| Point72 Asset Management, L.P. | New | 0 | 168.9K | +168.9K |
| AMERICAN CENTURY COMPANIES INC | Increased | 519.5K | 684.8K | +165.4K |
| Atle Fund Management AB | Increased | 94.8K | 248.8K | +154.1K |
| TD Asset Management Inc | New | 0 | 148.4K | +148.4K |
| Decheng Capital LLC | Reduced | 325.1K | 176.9K | -148.2K |
| Jump Financial, LLC | New | 0 | 144.5K | +144.5K |
| KORNITZER CAPITAL MANAGEMENT INC /KS | New | 0 | 139.9K | +139.9K |
| Nicholas Investment Partners, LP | Sold Out | 125.1K | 0 | -125.1K |
| Jefferies Financial Group Inc. | New | 0 | 122.7K | +122.7K |
| D. E. Shaw & Co., Inc. | New | 0 | 120.6K | +120.6K |
| BANK OF AMERICA CORP /DE/ | Reduced | 847.1K | 735.5K | -111.6K |
| LORD, ABBETT & CO. LLC | Increased | 195.4K | 306.6K | +111.2K |
| Mizuho Markets Cayman LP | Increased | 52.2K | 150.5K | +98.3K |
| DEERFIELD MANAGEMENT COMPANY, L.P. | Increased | 4.3M | 4.4M | +92.8K |
| Schonfeld Strategic Advisors LLC | New | 0 | 89.8K | +89.8K |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | Increased | 11.3K | 96.2K | +84.9K |
| Catalio Capital Management, LP | Sold Out | 83.6K | 0 | -83.6K |
| ALGERT GLOBAL LLC | New | 0 | 81.3K | +81.3K |
| Man Group plc | New | 0 | 80.8K | +80.8K |
| TUDOR INVESTMENT CORP ET AL | New | 0 | 79.5K | +79.5K |
| Y-Intercept (Hong Kong) Ltd | New | 0 | 78.1K | +78.1K |
| DEUTSCHE BANK AG\ | Increased | 124.8K | 199.9K | +75.2K |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.