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NewAmsterdam Pharma
NAMS

Overview Fund Activity

128 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, 29 reducing their positions, and 20 closing their positions.

Holders
128
Holders Change
+2
Holders Change %
+1.59%
% of All Funds
1.72%
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
29
Closed
20
Calls
$943K
Puts
$2.81M
Net Calls
-$1.87M
Net Calls Change
-$4.96M

Top Buyers

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

Top Sellers

1
Jennison Associates
1
Jennison Associates
New York
$53.4M
2
SL
2
Siren LLC
Connecticut
$21.6M
3
CAM
3
Cormorant Asset Management
Massachusetts
$39.4M
4
WP
4
Woodline Partners
California
$34.4M
5
Citadel Advisors
5
Citadel Advisors
Florida
$5.8M
Name Market Value Shares Shares
Change 		Shares
Change %
DC
26
Decheng Capital
California
$13.9M 770,000 – –
Aberdeen Group
27
Aberdeen Group
United Kingdom
$13.3M 735,032 +358,169 +95%
Morgan Stanley
28
Morgan Stanley
New York
$11.5M 637,707 +200,168 +46%
UBS Group
29
UBS Group
Switzerland
$11.4M 627,719 +229,576 +58%
BlackRock
30
BlackRock
New York
$10.4M 571,673 +73,692 +15%
RSCM
31
Rock Springs Capital Management
Maryland
$9.71M 536,111 – –
American Century Companies
32
American Century Companies
Missouri
$9.65M 532,916 +4,086 +0.8%
FTM
33
First Turn Management
California
$9.44M 521,097 +521,097 New
Bank of America
34
Bank of America
North Carolina
$8.77M 484,004 -175,304 -27%
EP
35
Eversept Partners
New York
$7.51M 414,430 +133,479 +48%
ACH
36
ArrowMark Colorado Holdings
Colorado
$6.49M 358,614 -3,108 -0.9%
Bank of New York Mellon
37
Bank of New York Mellon
New York
$6.39M 352,952 +352,952 New
Handelsbanken Fonder
38
Handelsbanken Fonder
Sweden
$6.19M 341,600 +81,600 +31%
Franklin Resources
39
Franklin Resources
California
$6.05M 334,212 +78,300 +31%
UBS AM
40
UBS AM
Illinois
$5.81M 320,804 +32,670 +11%
Citadel Advisors
41
Citadel Advisors
Florida
$5.8M 320,143 -361,790 -53%
SPC
42
Slate Path Capital
New York
$5.78M 319,000 – –
AAA
43
Affinity Asset Advisors
New York
$4.98M 275,000 -50,000 -15%
Axa
44
Axa
France
$4.4M 242,916 +397 +0.2%
RAM
45
Readystate Asset Management
Illinois
$4.19M 231,194 +1,532 +0.7%
SVCM
46
Saturn V Capital Management
Texas
$4M 220,695 +104,342 +90%
Ameriprise
47
Ameriprise
Minnesota
$3.77M 208,081 +112,927 +119%
IC
48
Ikarian Capital
Texas
$3.75M 206,800 +206,800 New
Vanguard Group
49
Vanguard Group
Pennsylvania
$3.24M 178,846 +148,370 +487%
DA
50
DCF Advisers
Connecticut
$3.12M 172,500 – –
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