NEWAMSTERDAM PHARMA COMPANY

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NAMS·N62509109·US·Common Stock·Healthcare - Biotechnology-Activist

NAMS (NEWAMSTERDAM PHARMA COMPANY) is held by 112 institutional investors as of Q2 2026. Largest holders: Capital World Investors ($414.5M), FMR LLC ($350.4M), RA CAPITAL MANAGEMENT, L.P. ($323.7M). Net institutional sentiment: Mixed.

112

Holders

(10 Elite)

$2.6B

Total Value

66% (109)

Consensus

72 buying - 37 selling

13F: Jun 30, 2026Insider & Congress: Updated regularly

Smart Money Verdict

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Institutional (13F)79

Insider (Form 4)49

Activist (13D/13G)44

Congressional (STOCK Act)26

Holder Quality

64

★★★★★

Elite

30

★★★★

Strong

72

★★★

Solid

30

★★

Below

47

★

Weak

Held by 112 funds

10 elite

Who's Trading

Source dates: Price Oct 14, 2026 · Insiders Oct 2, 2026 · Activists Sep 22, 2026 · Congress none

InsiderKPKastelein Johannes Jacob PieterSell $1.3MSep 30, 2026

InsiderKPKastelein Johannes Jacob PieterExercise 50K shSep 30, 2026

ActivistFLFrazier Life Sciences X, L.P.6.1%Sep 22, 2026

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Top Holders

Top Holders (112)History

AllNewIncreasedHeldDecreasedExitedFirst report

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Fund	Action	Shares	Value	Weight	Est. P&L	Conviction
Capital World Investors	Increased	12.2M(+10.1%)	$414.5M	0.0%	-15.94%	34
FMR LLC	Increased	10.3M(+17.9%)	$350.4M	0.0%	-30.29%	36
RA CAPITAL MANAGEMENT, L.P.	Unchanged	9.6M	$323.7M	2.8%	+45.76%	0
VIKING GLOBAL INVESTORS LP	Unchanged	4.2M	$142.5M	0.4%	+84.20%	0
MAVERICK CAPITAL LTD	Increased	3.3M(+49.5%)	$110.7M	1.0%	-26.68%	58
Duquesne Family Office LLC	Unchanged	3.1M	$104M	2.0%	-28.84%	0
JTJupiter Topco LLC	First report	2.5M	$86M	0.0%	-40.42%	0
JENNISON ASSOCIATES LLC	Decreased	2.1M(-23.6%)	$71.2M	0.0%	-22.47%	0
Orbis Allan Gray Ltd	New	1.7M	$59.2M	0.2%	-40.42%	49
Polar Capital Holdings Plc	Decreased	1.7M(-39.1%)	$58.4M	0.1%	-9.83%	0
Capital International Investors	Increased	1.7M(+19.6%)	$58.4M	0.0%	-25.34%	35
GOLDMAN SACHS GROUP INC	Decreased	1.5M(-20.6%)	$52.4M	0.0%	-30.60%	0
WESTFIELD CAPITAL MANAGEMENT CO LP	Decreased	1.5M(-30.3%)	$52.1M	0.2%	-36.93%	0
Castle Hook Partners LP	Increased	1.4M(+31.5%)	$46.5M	0.2%	-41.97%	44
AMERIPRISE FINANCIAL INC	Increased	1.3M(+66.5%)	$42.5M	0.0%	-35.48%	43
ALLIANCEBERNSTEIN L.P.	Increased	1.3M(+5.0%)	$40.3M	0.0%	-19.23%	31
PRICE T ROWE ASSOCIATES INC /MD/	New	1.2M	$39.6M	0.0%	-40.42%	40
JPMORGAN CHASE & CO	Increased	1.1M(+28.1%)	$38.4M	0.0%	-11.79%	36
Aberdeen Group plc	Increased	1.1M(+31.8%)	$37.4M	0.1%	-19.25%	37
BlackRock, Inc.	Increased	1.1M(+20.0%)	$36.1M	0.0%	-29.44%	34

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High Conviction Moves-Smart Money Convergence-Fund Consensus-Double-Down Detection

Data sourced from four public-disclosure sources: SEC 13F, Form 4, 13D/13G, and House/Senate STOCK Act disclosures. Not financial advice. Full disclaimer