NewAmsterdam Pharma NAMS Institutional Ownership

NASDAQ NAMS

$25.40 -0.45 (-1.74%)

At close: Sep 4, 2026 · 4:00 PM EDT

Institutions by Trading Activity

196 Institutions

Increased 120 61.2%

Unchanged 26 13.3%

Reduced 50 25.5%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

98.88%

▼-3.97 pp QoQ

Shares Held by Institutions

121.99Mn

of 123.37Mn outstanding

▲+2.38% QoQ

Shares Outstanding

123.37Mn

1.38Mn held outside 13F filers

Institutional Investors

196

filed 13F for Jun 2026

▲+27 vs prior quarter

Net Shares Added (QoQ)

+2.83Mn

accumulated since last quarter

Value of Holdings

$3.15Bn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Quarter ending 30 Jun, 2026

NewAmsterdam Pharma Co N.V. (NASDAQ:NAMS) showed up in the 13F filings of 196 institutional investors as of June 2026.

Their combined ownership stood at 98.9% of outstanding shares in June 2026, down from 102.8% in March 2026.
They increased total shares held in NewAmsterdam Pharma by 2.38% from last quarter, and the number of investors in NAMS increased 50.77% annually.
Among the 196 funds, 120 bought more NewAmsterdam Pharma shares, 50 sold down, and 26 held their ground.
Altogether, these fund groups held 121.99Mn shares in NAMS by June 2026, up by 2.83Mn shares quarter on quarter, and up 6.48Mn shares year over year.
Frazier Life Sciences Management, L.P. leads ownership in NAMS with 18.09Mn shares as of June 30, 2026, equal to 14.66% of outstanding shares.
Top purchasers of NAMS stock for the quarter ending June 2026 included Jupiter Topco LLC (2.54Mn), Orbis Allan Gray Ltd (1.75Mn), FMR LLC (1.57Mn), PRICE T ROWE ASSOCIATES INC /MD/ (1.17Mn), Frazier Life Sciences Management, L.P. (1.15Mn).
Top sellers of NAMS stock for the quarter ending June 2026 included WELLINGTON MANAGEMENT GROUP LLP (4.9Mn), Bain Capital Life Sciences Investors, LLC (3.5Mn), Polar Capital Holdings Plc (1.11Mn), FCPM III SERVICES B.V. (708.55K), WESTFIELD CAPITAL MANAGEMENT CO LP (666.44K).
Business Quant data shows the 10 biggest positions in NewAmsterdam Pharma as of June 2026 are held by Frazier Life Sciences Management, L.P. (18.09Mn), Capital World Investors (12.23Mn), FMR LLC (10.34Mn), RA CAPITAL MANAGEMENT, L.P. (9.55Mn), FCPM III SERVICES B.V. (8.49Mn), DEERFIELD MANAGEMENT COMPANY, L.P. (4.26Mn), VIKING GLOBAL INVESTORS LP (4.2Mn), Bain Capital Life Sciences Investors, LLC (3.81Mn), MAVERICK CAPITAL LTD (3.27Mn), Duquesne Family Office LLC (3.07Mn).

Form 13F Holdings

196 Institutional Holders

Report period 30 Jun, 2026

Total shares held 121.99Mn

Of outstanding 98.88%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	Frazier Life Sciences Management, L.P.	0001892134	18,088,902	14.66%	▲1,145,128	+6.76%	$613.03Mn
2	Capital World Investors	0001422849	12,230,557	9.91%	▲1,121,523	+10.10%	$414.49Mn
3	FMR LLC	0000315066	10,339,663	8.38%	▲1,573,852	+17.95%	$350.41Mn
4	RA CAPITAL MANAGEMENT, L.P.	0001346824	9,550,191	7.74%	0	0.00%	$323.66Mn
5	FCPM III SERVICES B.V.	0002013410	8,490,353	6.88%	▼708,547	-7.70%	$287.74Mn
6	DEERFIELD MANAGEMENT COMPANY, L.P.	0001009258	4,264,789	3.46%	0	0.00%	$144.53Mn
7	VIKING GLOBAL INVESTORS LP	0001103804	4,203,567	3.41%	0	0.00%	$142.46Mn
8	Bain Capital Life Sciences Investors, LLC	0001703031	3,806,566	3.09%	▼3,500,000	-47.90%	$129.00Mn
9	MAVERICK CAPITAL LTD	0000934639	3,267,802	2.65%	▲1,081,400	+49.46%	$110.75Mn
10	Duquesne Family Office LLC	0001536411	3,070,146	2.49%	0	0.00%	$104.05K
11	Jupiter Topco LLC	0002146052	2,535,682	2.06%	▲2,535,682	0.00%	$86.01Mn
12	Medicxi Ventures Management (Jersey) Ltd	0001715579	2,208,639	1.79%	▼465,543	-17.41%	$74.85Mn
13	JENNISON ASSOCIATES LLC	0000053417	2,102,286	1.70%	▼648,117	-23.56%	$71.25Mn
14	Orbis Allan Gray Ltd	0001663865	1,747,627	1.42%	▲1,747,627	0.00%	$59.23Mn
15	Polar Capital Holdings Plc	0001837309	1,724,518	1.40%	▼1,107,089	-39.10%	$58.44Mn
16	Capital International Investors	0001562230	1,723,495	1.40%	▲282,364	+19.59%	$58.41Mn
17	Goldman Sachs Group Inc	0000886982	1,544,911	1.25%	▼401,463	-20.63%	$52.36Mn
18	WESTFIELD CAPITAL MANAGEMENT CO LP	0001177719	1,536,472	1.25%	▼666,441	-30.25%	$52.07Mn
19	Castle Hook Partners LP	0001687241	1,371,005	1.11%	▲328,368	+31.49%	$46.46Mn
20	ALLIANCEBERNSTEIN L.P.	0001109448	1,259,940	1.02%	▲60,615	+5.05%	$40.33Mn

Showing 1 to 20 of 196 holders