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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.

Institutional holdersQ1 2026: 171 institutions
Q1 2021: 0 institutionsQ2 2021: 0 institutionsQ3 2021: 0 institutionsQ4 2021: 0 institutionsQ1 2022: 0 institutionsQ2 2022: 0 institutionsQ3 2022: 0 institutionsQ4 2022: 14 institutionsQ1 2023: 19 institutionsQ2 2023: 29 institutionsQ3 2023: 35 institutionsQ4 2023: 32 institutionsQ1 2024: 76 institutionsQ2 2024: 90 institutionsQ3 2024: 100 institutionsQ4 2024: 131 institutionsQ1 2025: 126 institutionsQ2 2025: 131 institutionsQ3 2025: 137 institutionsQ4 2025: 187 institutionsQ1 2026: 171 institutionsQ2 2026: 194 institutions
Value heldQ1 2026: $3.96B
Q1 2021: $0Q2 2021: $0Q3 2021: $0Q4 2021: $0Q1 2022: $0Q2 2022: $0Q3 2022: $0Q4 2022: $362.2MQ1 2023: $444.9MQ2 2023: $580.6MQ3 2023: $464.1MQ4 2023: $691.4MQ1 2024: $1.71BQ2 2024: $1.38BQ3 2024: $1.28BQ4 2024: $2.53BQ1 2025: $2.28BQ2 2025: $2.11BQ3 2025: $3.43BQ4 2025: $4.19BQ1 2026: $3.96BQ2 2026: $4.13B
Institutions holding NAMS and their total value by quarter
QuarterHoldersValue
Q2 2026194$4.13B
Q1 2026171$3.96B
Q4 2025187$4.19B
Q3 2025137$3.43B
Q2 2025131$2.11B
Q1 2025126$2.28B
Q4 2024131$2.53B
Q3 2024100$1.28B
Q2 202490$1.38B
Q1 202476$1.71B
Q4 202332$691.4M
Q3 202335$464.1M
Q2 202329$580.6M
Q1 202319$444.9M
Q4 202214$362.2M
Q3 20220$0
Q2 20220$0
Q1 20220$0
Q4 20210$0
Q3 20210$0
Q2 20210$0
Q1 20210$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.

Institutions holding NAMS in Q1 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Daiwa Securities Group Inc.0$00.00%−335−100.0%Sold out
Strategic Wealth Partners, Ltd.0$00.00%−325−100.0%Sold out
Greenline Wealth Management LLC0$00.00%−233−100.0%Sold out
SJS Investment Consulting Inc.0$00.00%−85−100.0%Sold out
Advisor Group Holdings, Inc.0$00.00%−10−100.0%Sold out
GAMMA Investing LLC0$00.00%−10−100.0%Sold out
Kilter Group LLC0$00.00%−9−100.0%Sold out
Vanguard Group Inc––––Not filed
CIBC Private Wealth Group, LLC––––Not filed
Global Retirement Partners, LLC––––Not filed
ORG Partners LLC––––Not filed