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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

Q1 2024 vs. Q4 2023

How the institutions holding NewAmsterdam Pharma Co N.V. changed between Q4 2023 and Q1 2024.

All holders in Q1 2024All holders in Q4 2023

13F holders of NAMSW: Q4 2023 compared with Q1 2024
MeasureQ4 2023Q1 2024Change
Holders1811−7
Shares1.64M1.44M−196.8K (−12.0%)
Value$4.91M$15.9M+$11.0M (+223.6%)

New holders (3)

Institutions that held NewAmsterdam Pharma Co N.V. at the end of Q1 2024 but not at the end of Q4 2023.

Institutions new to NAMSW in Q1 2024
InstitutionSharesValue% of portfolio
GTS Securities LLC121,150$1.34M0.04%
Monashee Investment Management LLC31,189$344.3K0.04%
CIBC Private Wealth Group, LLC1,000$11.3K0.00%

Sold out (10)

Institutions that held NewAmsterdam Pharma Co N.V. at the end of Q4 2023 and filed for Q1 2024 without it.

Institutions that sold out of NAMSW in Q1 2024
InstitutionShares, Q4 2023Value, Q4 2023
Ensign Peak Advisors, Inc150,000$469.5K
ADAR1 Capital Management, LLC82,857$259.3K
Westchester Capital Management, LLC31,189$97.6K
Walleye Capital LLC22,658$70.9K
Susquehanna International Group, LLP18,319$57.3K
PEAK6 Investments LLC17,000$53.2K
Walleye Trading LLC13,084$41.0K
Clear Street LLC8,993$28.1K
Cutler Group LP4,960$15.0K
EcoR1 Capital, LLC66,665–