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NewAmsterdam Pharma
NAMS

Overview Fund Activity

130 hedge funds and large institutions have $2.11B invested in NewAmsterdam Pharma in 2025 Q2 according to their latest regulatory filings, with 25 funds opening new positions, 58 increasing their positions, 30 reducing their positions, and 20 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
130
Holders Change
+4
Holders Change %
+3.17%
% of All Funds
1.74%
Holding in Top 10
7
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.09%
New
25
Increased
58
Reduced
30
Closed
20
Calls
$1.18M
Puts
$4.16M
Net Calls
-$2.98M
Net Calls Change
-$6.07M

Top Buyers

1
Capital World Investors
Capital World Investors
California
$152M
2
Adage Capital Partners
Adage Capital Partners
Massachusetts
$54.6M
3
DM
Deerfield Management
New York
$92.6M
4
MC
Maverick Capital
Texas
$27.7M
5
Fidelity Investments
Fidelity Investments
Massachusetts
$34.5M

Top Sellers

1
Jennison Associates
Jennison Associates
New York
$53.4M
2
SL
Siren LLC
Connecticut
$21.6M
3
CAM
Cormorant Asset Management
Massachusetts
$39.4M
4
WP
Woodline Partners
California
$34.4M
5
Citadel Advisors
Citadel Advisors
Florida
$5.8M
Name Holding Trade Value Shares
Change 		Shares
Change %
DC
26
Decheng Capital
California
$13.9M – – –
Aberdeen Group
27
Aberdeen Group
United Kingdom
$13.3M +$6.49M +358,169 +95%
Morgan Stanley
28
Morgan Stanley
New York
$11.5M +$3.63M +200,168 +46%
UBS Group
29
UBS Group
Switzerland
$11.4M +$4.16M +229,576 +58%
BlackRock
30
BlackRock
New York
$10.4M +$1.33M +73,692 +15%
RSCM
31
Rock Springs Capital Management
Maryland
$9.71M – – –
American Century Companies
32
American Century Companies
Missouri
$9.65M +$74K +4,086 +0.8%
FTM
33
First Turn Management
California
$9.44M +$9.44M +521,097 New
Bank of America
34
Bank of America
North Carolina
$8.77M -$3.17M -175,304 -27%
EP
35
Eversept Partners
New York
$7.51M +$2.42M +133,479 +48%
ACH
36
ArrowMark Colorado Holdings
Colorado
$6.49M -$56.3K -3,108 -0.9%
Bank of New York Mellon
37
Bank of New York Mellon
New York
$6.39M +$6.39M +352,952 New
Handelsbanken Fonder
38
Handelsbanken Fonder
Sweden
$6.19M +$1.48M +81,600 +31%
Franklin Resources
39
Franklin Resources
California
$6.05M +$1.42M +78,300 +31%
UBS AM
40
UBS AM
Illinois
$5.81M +$592K +32,670 +11%
Citadel Advisors
41
Citadel Advisors
Florida
$5.8M -$6.55M -361,790 -53%
SPC
42
Slate Path Capital
New York
$5.78M – – –
AAA
43
Affinity Asset Advisors
New York
$4.98M -$906K -50,000 -15%
Axa
44
Axa
France
$4.4M +$7.19K +397 +0.2%
RAM
45
Readystate Asset Management
Illinois
$4.19M +$27.7K +1,532 +0.7%
SVCM
46
Saturn V Capital Management
Texas
$4M +$1.89M +104,342 +90%
Ameriprise
47
Ameriprise
Minnesota
$3.77M +$2.05M +112,927 +119%
IC
48
Ikarian Capital
Texas
$3.75M +$3.75M +206,800 New
Vanguard Group
49
Vanguard Group
Pennsylvania
$3.24M +$2.69M +148,370 +487%
DA
50
DCF Advisers
Connecticut
$3.12M – – –
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