NewAmsterdam Pharma Co N.V.

NAMSNASDAQ

$23.20-0.96 (-3.97%)as of Oct 2, 2026

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Insider buy

Insider sell

Congress buy

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Hedge Funds
bought vs soldGreener markers show more buyers; redder markers show more sellers.

Company share activityNet buybacksNo changeNet dilution

Marker size reflects transaction size.

Insider buy
Insider sell
Congress buy
Congress sell
Hedge Funds bought vs sold

Share activityNet buybacksNo changeNet dilution

Marker size reflects transaction size. Greener fund markers mean more buyers.

Insider Buy
Insider Sell
Congress Buy
Congress Sell
Hedge funds bought vs sold
BuybackNo changeNet dilution

NewAmsterdam Pharma Co N.V. price and activity chart data

Showing the 1Y range: Oct 2, 2025 to Oct 2, 2026. Price (-24.4%). 0 insider or congressional trades plotted in this window as 0 markers; nearby trades of the same kind are grouped.

Transactions plotted on the price chart
Date	Category	Person	Role	Action	Amount	Change in holding

Largest institutional holders

13F · Q2 2026

Fund	% of company held	Value	% of portfolio	Quarterly activity
Frazier Life Sciences Management, L.P.	15.38%	$613M	13.35%	Add 6.76%
Capital World Investors	10.40%	$414M	0.05%	Add 10.10%
FMR LLC	8.79%	$350M	0.02%	Not reported
Ra Capital Management, L.P.	8.12%	$324M	2.81%	Not reported
FCPM III Services B.V.	7.22%	$288M	38.34%	Reduce 7.70%
Deerfield Management Company, L.P.	3.62%	$145M	1.51%	Not reported
Viking Global Investors LP	3.57%	$142M	0.41%	Not reported
Bain Capital Life Sciences Investors, LLC	3.24%	$129M	7.67%	Reduce 47.90%
Maverick Capital Ltd	2.78%	$111M	0.98%	Add 49.46%
Duquesne Family Office LLC	2.61%	$104M	2.00%	Not reported
Jupiter Topco LLC	2.16%	$86M	0.04%	Not reported
Medicxi Ventures Management (Jersey) Ltd	1.88%	$74.9M	42.19%	Reduce 17.41%
Jennison Associates LLC	1.79%	$71.2M	0.04%	Reduce 23.56%
Orbis Allan Gray Ltd	1.49%	$59.2M	0.20%	New Not reported
Polar Capital Holdings Plc	1.47%	$58.4M	0.14%	Reduce 39.10%
Capital International Investors	1.46%	$58.4M	0.01%	Add 19.59%
Goldman Sachs Group Inc	1.31%	$52.4M	0.00%	Not reported
Westfield Capital Management Co LP	1.31%	$52.1M	0.17%	Reduce 30.25%
Castle Hook Partners LP	1.17%	$46.5M	0.21%	Add 31.49%
Alliancebernstein L.P.	1.07%	$40.3M	0.01%	Not reported
Ameriprise Financial Inc	1.07%	$42.5M	0.01%	Not reported
JPMorgan Chase & Co	0.96%	$38.4M	0.00%	Not reported
Aberdeen Group plc	0.94%	$37.4M	0.05%	Add 31.75%
BlackRock, Inc.	0.90%	$36.1M	0.00%	Not reported
BNP PARIBAS ASSET MANAGEMENT Holding S.A.	0.66%	$26.5M	0.03%	Reduce 18.41%
Susquehanna International Group, LLP	0.64%	$25.6M	0.00%	Not reported
Woodline Partners LP	0.64%	$25.5M	0.08%	Not reported
Bank of America Corp	0.63%	$24.9M	0.00%	Not reported
Nwi Management LP	0.60%	$23.8M	1.10%	Not reported
American Century Companies Inc	0.58%	$23.2M	0.01%	Not reported
Citadel Advisors LLC	0.55%	$21.9M	0.00%	Not reported
Rock Springs Capital Management LP	0.50%	$19.7M	0.96%	Reduce 1.03%
First Turn Management, LLC	0.50%	$19.7M	2.11%	Add 4.33%
Morgan Stanley	0.49%	$19.5M	0.00%	Not reported
Adage Capital Partners GP, L.L.C.	0.47%	$18.6M	0.03%	Reduce 50.30%
Artia Global Partners LP	0.43%	$17.1M	3.15%	Not reported
Millennium Management LLC	0.43%	$17M	0.01%	Not reported
Cormorant Asset Management, LP	0.43%	$16.9M	0.87%	Reduce 47.37%
Jane Street Group, LLC	0.40%	$16.1M	0.00%	Not reported
Kennedy Capital Management LLC	0.36%	$14.3M	0.25%	Add 3.15%
Bank of New York Mellon Corp	0.30%	$12M	0.00%	Not reported
UBS Group AG	0.29%	$11.7M	0.00%	Not reported
Slate Path Capital LP	0.27%	$10.8M	0.15%	Not reported
Lord, Abbett & Co. LLC	0.26%	$10.4M	0.03%	Add 56.92%
ExodusPoint Capital Management, LP	0.26%	$10.3M	0.07%	Not reported
Eversept Partners, LP	0.23%	$9.34M	0.48%	Reduce 3.60%
Affinity Asset Advisors, LLC	0.23%	$9.32M	0.42%	Not reported
SEB Asset Management AB	0.23%	$9.24M	0.03%	Not reported
Atle Fund Management AB	0.21%	$8.43M	2.27%	Add 162.51%
Gilder Gagnon Howe & Co LLC	0.19%	$7.59M	0.08%	Reduce 7.21%

50 of 180 holders

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