NEWAMSTERDAM PHARMA COMPANY (NAMSW) Stock Institutional Trading Activity
NEWAMSTERDAM PHARMA COMPANY (NAMSW) position changes reported by tracked institutional filers across multiple SEC 13F reporting periods. Based on recent SEC 13F filings (Q4 2025), investors with some of the largest reported share count changes include Viking Global Investors and Polen Capital Management. Explore insights into buying and selling patterns, position changes, and investment conviction levels to understand institutional trading behavior and market dynamics.
Explore more:
- NEWAMSTERDAM PHARMA COMPANY (NAMSW) stock institutional ownership
- NEWAMSTERDAM PHARMA COMPANY (NAMSW) stock insider trading activity
- Stock rankings
| Portfolio quarter | Name | Type | Quantity | Remaining | Reported stock balance |
|---|---|---|---|---|---|
| Q4 2025 | Polen Capital Management | Buy | 11,239 | 11,239 | $394,264 |
| Q4 2025 | Viking Global Investors | Sell | -2,271,967 | 4,203,567 | $147,461,130 |
| Q3 2025 | Viking Global Investors | Sell | -503,000 | 6,475,534 | $184,164,187 |
| Q4 2024 | Viking Global Investors | Sell | -1,046,031 | 6,978,534 | $179,348,324 |
| Q3 2023 | Viking Global Investors | Buy | 1,500,000 | 8,024,565 | $74,227,226 |
| Q2 2023 | Viking Global Investors | Buy | 2,608,695 | 6,524,565 | $77,577,078 |
| Q1 2023 | Viking Global Investors | Buy | 162,042 | 3,915,870 | $52,629,293 |
| Q4 2022 | Viking Global Investors | Buy | 3,753,828 | 3,753,828 | $39,490,271 |
Frequently asked questions about NAMSW activity
Which institutional owners are buying NAMSW?
Institutional owners buying NAMSW include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.
What does "buy" mean in NAMSW activity?
"Buy" means an investor increased their reported position in NAMSW compared to the prior reporting period. This reflects growing exposure to NEWAMSTERDAM PHARMA COMPANY (NAMSW) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).
Is institutional interest in NAMSW increasing?
Institutional interest in NAMSW can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.