NewAmsterdam Pharma Co N.V.

NAMSW

Exchange: Nasdaq
Industry: Pharmaceutical Preparations
SEC CIK: 0001936258

SEC filings (opens in a new tab)

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

Q4 2023 vs. Q3 2023

How the institutions holding NewAmsterdam Pharma Co N.V. changed between Q3 2023 and Q4 2023.

All holders in Q4 2023 All holders in Q3 2023

13F holders of NAMSW: Q3 2023 compared with Q4 2023
Measure	Q3 2023	Q4 2023	Change
Holders	19	18	−1
Shares	1.55M	1.64M	+84.4K (+5.4%)
Value	$2.88M	$4.91M	+$2.03M (+70.7%)

New holders (2)

Institutions that held NewAmsterdam Pharma Co N.V. at the end of Q4 2023 but not at the end of Q3 2023.

Institutions new to NAMSW in Q4 2023
Institution	Shares	Value	% of portfolio
ADAR1 Capital Management, LLC	82,857	$259.3K	0.12%
Susquehanna International Group, LLP	18,319	$57.3K	0.00%

Sold out (3)

Institutions that held NewAmsterdam Pharma Co N.V. at the end of Q3 2023 and filed for Q4 2023 without it.

Institutions that sold out of NAMSW in Q4 2023
Institution	Shares, Q3 2023	Value, Q3 2023
Highbridge Capital Management LLC	–	$92.1K
Exos TFP Holdings LLC	12,273	$23.3K
UBS Group AG	38	$72