NewAmsterdam Pharma Co N.V.

NAMS

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 4 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

Q2 2025 vs. Q1 2025

How the institutions holding NewAmsterdam Pharma Co N.V. changed between Q1 2025 and Q2 2025.

All holders in Q2 2025 All holders in Q1 2025

13F holders of NAMS: Q1 2025 compared with Q2 2025
Measure	Q1 2025	Of which not filed for Q2 2025	Q2 2025	Change
Holders	126	1	131	+6
Shares	111.2M	45	116.4M	+5.19M (+4.7%)
Value	$2.28B	$921	$2.11B	−$171.2M (−7.5%)

1 institution that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so the changes leave them out.

New holders (26)

Institutions that held NewAmsterdam Pharma Co N.V. at the end of Q2 2025 but not at the end of Q1 2025.

Institutions new to NAMS in Q2 2025
Institution	Shares	Value	% of portfolio
First Turn Management, LLC	521,097	$9.44M	1.76%
Bank of New York Mellon Corp	352,952	$6.39M	0.00%
Ikarian Capital, LLC	206,800	$3.75M	1.24%
Nicholas Investment Partners, LP	115,739	$2.10M	0.19%
ADAR1 Capital Management, LLC	112,359	$2.03M	0.33%
Exome Asset Management LLC	36,574	$662.4K	0.55%
Knights of Columbus Asset Advisors LLC	32,833	$594.6K	0.04%
Artia Global Partners LP	27,319	$494.7K	0.13%
HighVista Strategies LLC	19,274	$349.1K	0.13%
Legato Capital Management LLC	18,789	$340.3K	0.04%
Algert Global LLC	18,140	$328.5K	0.01%
Squarepoint Ops LLC	14,279	$258.6K	0.00%
PTM Wealth Management, LLC	12,900	$256.1K	0.17%
Kennedy Capital Management, Inc.	13,675	$247.7K	0.01%
Prelude Capital Management, LLC	13,420	$243.0K	0.02%
Letko, Brosseau & Associates Inc	11,775	$213.2K	0.00%
Teacher Retirement System of Texas	11,700	$211.9K	0.00%
Hudson Bay Capital Management LP	10,739	$194.5K	0.00%
Cheviot Value Management, LLC	796	$20.1K	0.00%
State of Wyoming	550	$9.96K	0.00%
Raymond James Financial Inc	500	$9.05K	0.00%
Jones Financial Companies LLLP	249	$4.62K	0.00%
Group One Trading, L.P.	225	$4.08K	0.00%
Clearstead Advisors, LLC	88	$1.59K	0.00%
Kilter Group LLC	10	$182	0.00%
Essential Partners LLC	2	$36	0.00%

Sold out (20)

Institutions that held NewAmsterdam Pharma Co N.V. at the end of Q1 2025 and filed for Q2 2025 without it.

Institutions that sold out of NAMS in Q2 2025
Institution	Shares, Q1 2025	Value, Q1 2025
Cutter Capital Management, LP	221,152	$4.53M
Parkman Healthcare Partners LLC	100,955	$2.07M
Avidity Partners Management LP	68,000	$1.39M
Trexquant Investment LP	66,102	$1.35M
ExodusPoint Capital Management, LP	59,644	$1.22M
BVF Inc	59,065	$1.21M
Omers Administration Corp	37,700	$771.7K
Schonfeld Strategic Advisors LLC	33,457	$684.9K
Gilder Gagnon Howe & Co LLC	29,569	$605.3K
Gsa Capital Partners LLP	22,358	$458.0K
Bryce Point Capital, LLC	19,653	$438.1K
HB Wealth Management, LLC	11,247	$230.2K
Keybank National Association	9,983	$204.4K
SG Americas Securities, LLC	5,659	$116.0K
PSI Advisors, LLC	500	$10.2K
Continuum Advisory, LLC	154	$3.15K
Coldstream Capital Management Inc	24	$492
Principal Securities, Inc.	13	$334
GAMMA Investing LLC	7	$143
SBI Securities Co., Ltd.	3	$61

Not filed for Q2 2025 yet (1)

Institutions that held NewAmsterdam Pharma Co N.V. at the end of Q1 2025 and haven't filed a 13F for Q2 2025. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding NAMS in Q1 2025 that haven't filed for Q2 2025
Institution	Shares, Q1 2025	Value, Q1 2025
Lindbrook Capital, LLC	45	$921