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
Superinvestors holding NAMS, Q2 2026
3 superinvestors report holding NewAmsterdam Pharma Co N.V. on Form 13F, worth $357.3M in total. Weight is NewAmsterdam Pharma Co N.V.'s share of each 13F portfolio; actions compare shares with Q1 2026.
| Superinvestor | % of portfolio | Shares | Value | vs. previous quarter |
|---|---|---|---|---|
| Viking Global InvestorsAndreas Halvorsen | 0.4% | 4,203,567 | $142.5M | Unchanged |
| Maverick CapitalLee Ainslie | 1.0% | 3,267,802 | $110.7M | Added+49.5% |
| Duquesne Family OfficeStanley Druckenmiller | 2.4% | 3,070,146 | $104.0M | Unchanged |
Moves by quarter
Superinvestors that opened, added to, trimmed or sold out of NAMS each quarter, comparing shares with the quarter before. A superinvestor that didn't file for a quarter isn't listed, and isn't counted as selling.
Q2 2026
3 superinvestors holding at quarter end
- Added
- Maverick Capital (+49.5%)
Q1 2026
3 superinvestors holding at quarter end
- Added
- Maverick Capital (+15.4%)
Q4 2025
3 superinvestors holding at quarter end
- Added
- Duquesne Family Office (+59.6%), Maverick Capital (+25.9%)
- Reduced
- Viking Global Investors (−35.1%)
Q3 2025
3 superinvestors holding at quarter end
- Added
- Duquesne Family Office (+131.2%)
- Reduced
- Viking Global Investors (−7.2%), Maverick Capital (−1.8%)
Q2 2025
3 superinvestors holding at quarter end
- Added
- Maverick Capital (+178.8%), Duquesne Family Office (+4.0%)
Q1 2025
3 superinvestors holding at quarter end
- Added
- Duquesne Family Office (+178.4%), Maverick Capital (+57.0%)
Q4 2024
3 superinvestors holding at quarter end
- New
- Maverick Capital
- Reduced
- Viking Global Investors (−13.0%)
Q3 2024
2 superinvestors holding at quarter end
Q3 2023
1 superinvestor holding at quarter end
- Added
- Viking Global Investors (+23.0%)
Q2 2023
1 superinvestor holding at quarter end
- Added
- Viking Global Investors (+66.6%)
Q1 2023
1 superinvestor holding at quarter end
- Added
- Viking Global Investors (+4.3%)
Q4 2022
1 superinvestor holding at quarter end