NewAmsterdam Pharma Co N.V.
NAMSW- 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; 9 institutions reported holding it in 13F filings for Q2 2026, worth $28.1M in total; no superinvestor holds it.
Other share classesNAMS
13F holders, Q4 2023
Institutional positions in NewAmsterdam Pharma Co N.V. as of Dec 31, 2023. 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
- 18
- −1 vs. Q3 2023
- Shares held
- 1.64M
- +84.4K (+5.4%) vs. Q3 2023
- Total value
- $5.65M
- +$2.16M (+61.8%) vs. Q3 2023
- New holders
- 2
- 0 more added
- Sold out
- 3
- 1 more reduced
Compare with Q3 2023: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting NAMSW 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 | 9 | $28.1M |
| Q1 2026 | 9 | $26.0M |
| Q4 2025 | 9 | $29.9M |
| Q3 2025 | 9 | $22.2M |
| Q2 2025 | 10 | $10.4M |
| Q1 2025 | 10 | $12.3M |
| Q4 2024 | 11 | $18.8M |
| Q3 2024 | 11 | $9.32M |
| Q2 2024 | 10 | $11.5M |
| Q1 2024 | 11 | $15.9M |
| Q4 2023 | 18 | $5.65M |
| Q3 2023 | 19 | $3.49M |
| Q2 2023 | 19 | $4.73M |
| Q1 2023 | 19 | $5.00M |
| Q4 2022 | 22 | $4.53M |
| Q3 2022 | 0 | $0 |
| Q2 2022 | 1 | $35.5K |
| Q1 2022 | 0 | $0 |
| Q4 2021 | 0 | $0 |
| Q3 2021 | 0 | $0 |
| Q2 2021 | 0 | $0 |
| Q1 2021 | 0 | $0 |
Institutions, Q4 2023
Shares, value and share of portfolio for each institution holding NewAmsterdam Pharma Co N.V.; share changes are against Q3 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Frazier Life Sciences Management, L.P. | 500,333 | $1.57M | 0.08% | 00.0% | Unchanged |
| Ra Capital Management, L.P. | 333,333 | $1.04M | 0.02% | 00.0% | Unchanged |
| EcoR1 Capital, LLC | 66,665 | $744.6K | 0.02% | 00.0% | Unchanged |
| Ensign Peak Advisors, Inc | 150,000 | $469.5K | 0.00% | 00.0% | Unchanged |
| Affinity Asset Advisors, LLC | 137,000 | $428.8K | 0.09% | 00.0% | Unchanged |
| Bain Capital Life Sciences Investors, LLC | 100,000 | $313.0K | 0.03% | 00.0% | Unchanged |
| Deerfield Management Company, L.P. (Series C) | 92,787 | $290.4K | 0.01% | 00.0% | Unchanged |
| ADAR1 Capital Management, LLC | 82,857 | $259.3K | 0.12% | +82,857 | New |
| Westchester Capital Management, LLC | 31,189 | $97.6K | 0.00% | 00.0% | Unchanged |
| HRT Financial LP | 30,321 | $94.0K | 0.00% | 00.0% | Unchanged |
| Walleye Capital LLC | 22,658 | $70.9K | 0.00% | 00.0% | Unchanged |
| Susquehanna International Group, LLP | 18,319 | $57.3K | 0.00% | +18,319 | New |
| PEAK6 Investments LLC | 17,000 | $53.2K | 0.00% | 00.0% | Unchanged |
| Laurion Capital Management LP | 16,666 | $52.2K | 0.00% | 00.0% | Unchanged |
| Walleye Trading LLC | 13,084 | $41.0K | 0.00% | 00.0% | Unchanged |
| Vestcor Inc | 9,632 | $30.0K | 0.00% | 00.0% | Unchanged |
| Clear Street LLC | 8,993 | $28.1K | 0.00% | −4,470−33.2% | Reduced |
| Cutler Group LP | 4,960 | $15.0K | 0.00% | 00.0% | Unchanged |
| Highbridge Capital Management LLC | 0 | $0 | 0.00% | – | Sold out |
| Exos TFP Holdings LLC | 0 | $0 | 0.00% | −12,273−100.0% | Sold out |
| UBS Group AG | 0 | $0 | 0.00% | −38−100.0% | Sold out |