NewAmsterdam Pharma Co N.V. - Ordinary Shares, nominal value EUR0.12 per share (NAMS) Institutional Ownership

13F Institutional Holders and Ownership History from Q4 2022 to Q4 2025

Type / Class
Equity / Ordinary Shares, nominal value EUR0.12 per share
Symbol
NAMS on Nasdaq
Shares outstanding
113,609,919
Price per share
$32.63
All holders as of 31 Dec 2025
Q4 2025
Total 13F shares
118,571,782
Total reported value
$4,159,988,277
% of total 13F portfolios
0.01%
Share change
-1,908,418
Value change
-$60,031,059
Number of holders
182
Price from insider filings
$32.63
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of NewAmsterdam Pharma Co N.V. - Ordinary Shares, nominal value EUR0.12 per share (NAMS) based on Schedule 13D/G filings

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
RA CAPITAL MANAGEMENT, L.P. 9.9% 0% $205,220,969 +$3,481,297 11,063,125 +1.7% RA Capital Management, L.P. 31 Mar 2025
Capital World Investors 8.7% +15% $279,357,901 +$40,811,002 9,822,711 +17% Capital World Investors 30 Sep 2025
Forbion Capital Fund IV Cooperatief U.A. 8.3% -12% $223,140,090 -$30,222,313 9,316,914 -12% ForGrowth NAP B.V. 26 Sep 2025
Frazier Life Sciences X, L.P. 7.7% +17% $245,264,825 +$36,858,297 8,623,939 +18% Frazier Life Sciences Public Fund, L.P. 01 Nov 2025
FMR LLC 5.7% $224,967,479 6,412,984 FMR LLC 31 Dec 2025
BCLS II Investco, LP 4.7% -53% $214,462,841 -$241,180,844 5,376,356 -53% BCLS Fund III Investments, LP 02 Dec 2025
VIKING GLOBAL INVESTORS LP 3.7% -40% $144,476,598 -$95,375,616 4,203,567 -40% VIKING GLOBAL INVESTORS LP 31 Dec 2025

As of 31 Dec 2025, 182 institutional investors reported holding 118,571,782 shares of NewAmsterdam Pharma Co N.V. - Ordinary Shares, nominal value EUR0.12 per share (NAMS). This represents 104% of the company’s total 113,609,919 outstanding shares.

Top 25 Institutional Shareholders

The largest institutional shareholders of NewAmsterdam Pharma Co N.V. - Ordinary Shares, nominal value EUR0.12 per share (NAMS) together control 89% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.

Institution Ownership % Shares Held Share Change % Portfolio % Holdings Value
Frazier Life Sciences Management, L.P. 15% 16,943,774 +1.4% 16% $594,387,592
Capital World Investors 8.8% 9,984,000 +1.6% 0.05% $350,238,720
RA CAPITAL MANAGEMENT, L.P. 8.4% 9,550,191 -5.8% 3.4% $335,020,700
FCPM III SERVICES B.V. 8.1% 9,198,900 -0.15% 42% $322,697,412
Bain Capital Life Sciences Investors, LLC 6.4% 7,306,566 -32% 20% $256,314,335
FMR LLC 5.6% 6,412,984 +16% 0.01% $224,967,480
WELLINGTON MANAGEMENT GROUP LLP 4.4% 5,033,175 +25% 0.03% $176,563,779
VIKING GLOBAL INVESTORS LP 3.7% 4,203,567 -35% 0.39% $147,461,130
DEERFIELD MANAGEMENT COMPANY, L.P. 3.7% 4,164,789 -2.4% 1.9% $146,100,798
JENNISON ASSOCIATES LLC 3.1% 3,489,221 -17% 0.07% $122,401,874
Duquesne Family Office LLC 2.7% 3,070,146 +60% 2.6% $107,701,000
Medicxi Ventures Management (Jersey) Ltd 2.5% 2,869,565 0% 12% $100,664,340
Polar Capital Holdings Plc 2.4% 2,776,222 -4.7% 0.45% $97,389,868
JANUS HENDERSON GROUP PLC 2.1% 2,341,723 +11% 0.04% $82,299,855
Capital International Investors 1.8% 2,062,535 0% 0.01% $72,353,728
MAVERICK CAPITAL LTD 1.7% 1,894,226 +26% 0.71% $66,449,448
GOLDMAN SACHS GROUP INC 1.5% 1,725,662 +96% 0.01% $60,536,223
ADAGE CAPITAL PARTNERS GP, L.L.C. 1.2% 1,406,631 -45% 0.07% $49,344,615
ALLIANCEBERNSTEIN L.P. 1.1% 1,300,875 -39% 0.01% $45,634,695
Castle Hook Partners LP 0.96% 1,085,008 0.55% $38,062,080
Cormorant Asset Management, LP 0.88% 1,000,000 -54% 2% $35,080,000
JPMORGAN CHASE & CO 0.88% 999,976 -23% 0% $35,079,158
UBS Group AG 0.79% 899,442 +17% 0.01% $31,552,425
First Turn Management, LLC 0.79% 893,473 +25% 3.6% $31,343,033
BlackRock, Inc. 0.75% 849,779 +37% 0% $29,810,247

Institutional Holders of NewAmsterdam Pharma Co N.V. - Ordinary Shares, nominal value EUR0.12 per share (NAMS) across Reporting Periods

Period Reported Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2025 Q4 118,571,782 $4,159,988,277 -$60,031,059 $35.08 182
2025 Q3 120,390,588 $3,423,902,136 +$122,882,388 $28.44 135
2025 Q2 116,368,291 $2,107,516,504 +$92,203,105 $18.11 130
2025 Q1 111,177,846 $2,278,669,708 +$247,823,372 $20.47 126
2024 Q4 98,611,632 $2,534,320,573 +$569,548,998 $25.70 130
2024 Q3 77,090,356 $1,279,730,929 +$65,939,934 $16.60 100
2024 Q2 72,010,250 $1,383,367,935 -$7,907,090 $19.21 90
2024 Q1 72,152,341 $1,706,357,479 +$242,490,357 $23.65 76
2023 Q4 61,897,680 $691,396,295 -$81,202 $11.17 32
2023 Q3 50,178,896 $464,099,871 +$5,440,463 $9.25 35
2023 Q2 48,833,993 $580,635,231 +$184,129,037 $11.89 29
2023 Q1 33,346,896 $444,858,187 +$689,119 $13.26 19
2022 Q4 33,516,836 $362,234,361 +$362,234,361 $10.90 14