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, Q1 2026
Institutional positions in NewAmsterdam Pharma Co N.V. as of Mar 31, 2026. 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
- 171
- −12 vs. Q4 2025
- Shares held
- 123.7M
- +4.50M (+3.8%) vs. Q4 2025
- Total value
- $3.96B
- −$218.6M (−5.2%) vs. Q4 2025
- New holders
- 24
- 68 more added
- Sold out
- 36
- 49 more reduced
4 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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, Q1 2026
Shares, value and share of portfolio for each institution holding NewAmsterdam Pharma Co N.V.; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Legato Capital Management LLC | 21,570 | $690.5K | 0.06% | −62,263−74.3% | Reduced |
| DnB Asset Management AS | 21,558 | $690.1K | 0.00% | +1,439+7.2% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 20,921 | $669.7K | 0.00% | +1,117+5.6% | Added |
| State of Wisconsin Investment Board | 20,547 | $657.7K | 0.00% | +550+2.8% | Added |
| HighVista Strategies LLC | 20,067 | $642.3K | 0.18% | −15,519−43.6% | Reduced |
| DAFNA Capital Management LLC | 20,000 | $640.2K | 0.15% | +20,000 | New |
| Aquatic Capital Management LLC | 19,630 | $628.4K | 0.02% | −26,359−57.3% | Reduced |
| Caption Management, LLC | 19,507 | $624.4K | 0.03% | +9,979+104.7% | Added |
| Glenmede Trust Co NA | 18,575 | $594.6K | 0.00% | −3,640−16.4% | Reduced |
| Mirae Asset Global ETFs Holdings Ltd. | 17,865 | $571.9K | 0.00% | −705−3.8% | Reduced |
| Susquehanna International Group, LLP | 17,825 | $570.6K | 0.00% | −177,810−90.9% | Reduced |
| New York State Common Retirement Fund | 17,800 | $569.8K | 0.00% | −8,880−33.3% | Reduced |
| Brevan Howard Capital Management LP | 16,800 | $527.9K | 0.01% | +16,800 | New |
| Envestnet Asset Management Inc | 15,550 | $497.8K | 0.00% | −2,022−11.5% | Reduced |
| Mesirow Financial Investment Management, Inc. | 15,430 | $493.9K | 0.01% | +7,215+87.8% | Added |
| State of New Jersey Common Pension Fund D | 15,397 | $492.9K | 0.00% | +20+0.1% | Added |
| PSP Research LLC | 15,000 | $480.1K | 0.34% | +80+0.5% | Added |
| AlphaCentric Advisors LLC | 14,656 | $469.1K | 0.47% | +925+6.7% | Added |
| Altfest L J & Co Inc | 13,934 | $446.0K | 0.05% | +13,934 | New |
| PTM Wealth Management, LLC | 12,900 | $440.1K | 0.23% | 00.0% | Unchanged |
| SBI Okasan Asset Management Co.Ltd. | 14,900 | $437.0K | 0.02% | 00.0% | Unchanged |
| Keybank National Association | 12,480 | $399.5K | 0.00% | −619−4.7% | Reduced |
| Arizona State Retirement System | 12,375 | $396.1K | 0.00% | −358−2.8% | Reduced |
| Letko, Brosseau & Associates Inc | 11,775 | $376.9K | 0.01% | 00.0% | Unchanged |
| Royal Bank of Canada | 11,314 | $362.0K | 0.00% | −12,770−53.0% | Reduced |
| Manufacturers Life Insurance Company, The | 11,302 | $361.8K | 0.00% | −11,396−50.2% | Reduced |
| Twinbeech Capital LP | 10,600 | $339.3K | 0.04% | −16,800−61.3% | Reduced |
| AQR Capital Management LLC | 10,384 | $332.4K | 0.00% | +102+1.0% | Added |
| Vanguard Investments Australia, Ltd. | 10,027 | $321.0K | 0.00% | +10,027 | New |
| KLP Kapitalforvaltning AS | 9,900 | $316.9K | 0.00% | +800+8.8% | Added |
| The PNC Financial Services Group, Inc. | 9,119 | $291.9K | 0.00% | +5,437+147.7% | Added |
| Creative Planning | 8,357 | $267.5K | 0.00% | −7,280−46.6% | Reduced |
| Virtus Investment Advisers, Inc. | 7,319 | $234.3K | 0.06% | +177+2.5% | Added |
| Invesco Ltd. | 7,291 | $233.4K | 0.00% | +1,330+22.3% | Added |
| Allianz Asset Management GmbH | 6,600 | $211.3K | 0.00% | 00.0% | Unchanged |
| Pictet Asset Management Holding SA | 6,533 | $209.1K | 0.00% | −739,589−99.1% | Reduced |
| Guggenheim Capital LLC | 6,458 | $206.7K | 0.00% | +70+1.1% | Added |
| Mirae Asset Global Investments Co., Ltd. | 5,997 | $192.0K | 0.00% | +487+8.8% | Added |
| US Bancorp | 5,474 | $175.2K | 0.00% | +2,055+60.1% | Added |
| Citigroup Inc | 4,766 | $152.6K | 0.00% | +1,068+28.9% | Added |
| Quarry LP | 4,500 | $144.0K | 0.03% | +1,500+50.0% | Added |
| Caitong International Asset Management Co., Ltd | 3,776 | $120.9K | 0.02% | +3,753+16,317.4% | Added |
| Freestone Grove Partners LP | 3,000 | $96.0K | 0.00% | +3,000 | New |
| AdvisorNet Financial, Inc | 2,565 | $82.1K | 0.00% | +2,565 | New |
| GF Fund Management Co. Ltd. | 2,546 | $81.5K | 0.00% | +318+14.3% | Added |
| National Bank of Canada | 2,017 | $64.5K | 0.00% | 00.0% | Unchanged |
| Parallel Advisors, LLC | 1,410 | $45.1K | 0.00% | +10+0.7% | Added |
| Tower Research Capital LLC (TRC) | 1,198 | $38.3K | 0.00% | +255+27.0% | Added |
| KBC Group NV | 1,171 | $37.0K | 0.00% | +1,171 | New |
| Thurston, Springer, Miller, Herd & Titak, Inc. | 1,067 | $34.2K | 0.01% | 00.0% | Unchanged |
| Farther Finance Advisors, LLC | 1,018 | $33.4K | 0.00% | +294+40.6% | Added |
| CWM, LLC | 1,018 | $32.6K | 0.00% | +37+3.8% | Added |
| Wells Fargo & Company | 900 | $28.8K | 0.00% | 00.0% | Unchanged |
| Cheviot Value Management, LLC | 796 | $25.5K | 0.00% | 00.0% | Unchanged |
| Roxbury Financial LLC | 563 | $18.0K | 0.02% | +120+27.1% | Added |
| State of Wyoming | 532 | $17.0K | 0.00% | −69−11.5% | Reduced |
| Jones Financial Companies LLLP | 530 | $15.9K | 0.00% | +331+166.3% | Added |
| Stone House Investment Management, LLC | 325 | $10.4K | 0.00% | 00.0% | Unchanged |
| FIL Ltd | 217 | $6.95K | 0.00% | +217 | New |
| Eastern Bank | 187 | $5.99K | 0.00% | 00.0% | Unchanged |
| Basecamp Wealth Advisors LLC | 99 | $3.17K | 0.00% | 00.0% | Unchanged |
| Golden State Equity Partners | 60 | $1.92K | 0.00% | +60 | New |
| Rachor Investment Advisory Services, LLC | 28 | $897 | 0.00% | 00.0% | Unchanged |
| True Wealth Design, LLC | 21 | $673 | 0.00% | 00.0% | Unchanged |
| EverSource Wealth Advisors, LLC | 12 | $384 | 0.00% | +4+50.0% | Added |
| MAI Capital Management | 11 | $353 | 0.00% | +11 | New |
| Allworth Financial LP | 9 | $289 | 0.00% | +9 | New |
| Sunbelt Securities, Inc. | 8 | $256 | 0.00% | 00.0% | Unchanged |
| IFP Advisors, Inc | 3 | $96 | 0.00% | 00.0% | Unchanged |
| Essential Partners LLC | 2 | $64 | 0.00% | 00.0% | Unchanged |
| DuPont Capital Management Corp | 1 | $32 | 0.00% | 00.0% | Unchanged |
| Lisanti Capital Growth, LLC | 0 | $0 | 0.00% | −179,410−100.0% | Sold out |
| Price T Rowe Associates Inc | 0 | $0 | 0.00% | −116,258−100.0% | Sold out |
| JTC Employer Solutions Trusteee Ltd | 0 | $0 | 0.00% | −75,500−100.0% | Sold out |
| Centiva Capital, LP | 0 | $0 | 0.00% | −80,000−100.0% | Sold out |
| Jain Global LLC | 0 | $0 | 0.00% | −47,584−100.0% | Sold out |
| Ikarian Capital, LLC | 0 | $0 | 0.00% | −45,830−100.0% | Sold out |
| Verition Fund Management LLC | 0 | $0 | 0.00% | −32,391−100.0% | Sold out |
| Winton Group Ltd | 0 | $0 | 0.00% | −28,665−100.0% | Sold out |
| Yarbrough Capital, LLC | 0 | $0 | 0.00% | −23,960−100.0% | Sold out |
| PEAK6 LLC | 0 | $0 | 0.00% | −20,749−100.0% | Sold out |
| Holocene Advisors, LP | 0 | $0 | 0.00% | −20,459−100.0% | Sold out |
| TD Asset Management Inc | 0 | $0 | 0.00% | −13,180−100.0% | Sold out |
| Jefferies Financial Group Inc. | 0 | $0 | 0.00% | −12,000−100.0% | Sold out |
| Polen Capital Management LLC | 0 | $0 | 0.00% | −11,239−100.0% | Sold out |
| Fox Run Management, L.L.C. | 0 | $0 | 0.00% | −9,798−100.0% | Sold out |
| Jaffetilchin Investment Partners, LLC | 0 | $0 | 0.00% | −9,218−100.0% | Sold out |
| Virginia Retirement Systems Et Al | 0 | $0 | 0.00% | −7,200−100.0% | Sold out |
| Teacher Retirement System of Texas | 0 | $0 | 0.00% | −6,687−100.0% | Sold out |
| Avanza Fonder AB | 0 | $0 | 0.00% | −6,566−100.0% | Sold out |
| Brinker Capital Investments, LLC | 0 | $0 | 0.00% | −6,545−100.0% | Sold out |
| Simon Quick Advisors, LLC | 0 | $0 | 0.00% | −5,763−100.0% | Sold out |
| Seven Fleet Capital Management LP | 0 | $0 | 0.00% | −4,000−100.0% | Sold out |
| Persistent Asset Partners Ltd | 0 | $0 | 0.00% | −3,948−100.0% | Sold out |
| Quantbot Technologies LP | 0 | $0 | 0.00% | −3,692−100.0% | Sold out |
| NBC Securities, Inc. | 0 | $0 | 0.00% | −2,457−100.0% | Sold out |
| Wolverine Asset Management LLC | 0 | $0 | 0.00% | −2,012−100.0% | Sold out |
| Navalign, LLC | 0 | $0 | 0.00% | −1,315−100.0% | Sold out |
| Group One Trading, L.P. | 0 | $0 | 0.00% | −1,313−100.0% | Sold out |
| Signaturefd, LLC | 0 | $0 | 0.00% | −647−100.0% | Sold out |