Who owns NAMSWhat NAMS owns — n/a

Who owns NewAmsterdam Pharma Co N.V.?

Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.

Institutional ownership of NAMS from SEC Form 13F filings across 177 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.

As of the 2026-06-30 reporting period, 177 institutions disclosed 128.1M shares of NewAmsterdam Pharma Co N.V. worth $4.10B; the largest disclosed holder is Frazier Life Sciences Management, L.P.. Source: SEC Form 13F filings, parsed by EvidInvest.

177

13F holders

$4.10B

value, 2026 filers

128.1M

shares disclosed

new positions (2026 filers)

Top institutional holders

ordered by shares owned · positions as of 2026-06-30 · % of fund = share of the manager's own book · % of co. = share of NAMS's shares outstanding

#	Manager	Shares	Value	% of fund	% of co.	Δ shares QoQ
1	Frazier Life Sciences Management, L.P.	16.9M	$542.4M	14.0%	—	—
2	Capital World Investors	11.1M	$355.6M	0.0%	—	—
3	RA CAPITAL MANAGEMENT, L.P.	9.6M	$305.7M	3.2%	—	—
4	FCPM III SERVICES B.V.	9.2M	$294.5M	40.8%	—	—
5	FMR LLC	8.8M	$280.6M	0.0%	—	—
6	Bain Capital Life Sciences Investors, LLC	7.3M	$233.9M	21.1%	—	—
7	WELLINGTON MANAGEMENT GROUP LLP	5.1M	$163.8M	0.0%	—	—
8	DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C)	4.3M	$136.5M	1.6%	—	—
9	VIKING GLOBAL INVESTORS LP	4.2M	$134.6M	0.4%	—	—
10	Duquesne Family Office LLC	3.1M	$98.3M	2.9%	—	—
11	Polar Capital Holdings Plc	2.8M	$90.6M	0.3%	—	—
12	Medicxi Ventures Management (Jersey) Ltd	2.2M	$74.9M	42.2%	—	—
13	JANUS HENDERSON GROUP PLC	2.3M	$72.3M	0.0%	—	—
14	JENNISON ASSOCIATES LLC	2.1M	$71.2M	0.0%	—	—
15	WESTFIELD CAPITAL MANAGEMENT CO LP	2.2M	$70.5M	0.3%	—	—
16	MAVERICK CAPITAL LTD	2.2M	$70.0M	0.8%	—	—
17	GOLDMAN SACHS GROUP INC	1.9M	$62.3M	0.0%	—	—
18	Capital International Investors	1.4M	$46.1M	0.0%	—	—
19	ALLIANCEBERNSTEIN L.P.	1.2M	$42.1M	0.0%	—	—
20	abrdn plc	1.1M	$37.4M	0.1%	—	—
21	ADAGE CAPITAL PARTNERS GP, L.L.C.	1.1M	$35.4M	0.1%	—	—
22	Castle Hook Partners LP	1.0M	$33.4M	0.1%	—	—
23	BNP Paribas Asset Management Holding S.A.	957,442	$30.6M	0.0%	—	—
24	Cormorant Asset Management, LP	950,000	$30.4M	1.5%	—	—
25	BlackRock, Inc.	886,616	$28.4M	0.0%	—	—

Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.