NAMSNewAmsterdam Pharma Company N.V.

$21.58-19% 1Y

Who owns NAMS

192 institutions reported holding NAMS for 2026Q2, together 100% of the company, more than the 168 a quarter earlier.

192

Institutions reporting a position · as of 2026Q2 · up from 168 the quarter before

Shares held by institutions
121.9M

Shares held by institutions · 100% of the company · long US equity positions only, as reported on Form 13F

Reported value
$4.13B

Reported value · at Jun 30, 2026 prices, not today's

Top 5 holders
48%

Top 5 holders · of the whole company, between five filers

Details›
Reporting quarter2026-06-30
2026Q2
Quarters on record
15
New positions
46
Positions exited
23
Added to
66
Reduced
47
Top 10 holdersof the company
64%
Shares sold shortsettled Sep 15, 2026
15.7M
Short interestof shares outstanding
13%
Days to coverat the average daily volume
9.9
Change in the short positionsince the Aug 31, 2026 count
+17%
Institutional ownership by quarter, 2022Q4 to 2026Q2
QuarterFilersSharesReported value
2026Q2192121.9M$4.13B
2026Q1168123.4M$3.95B
2025Q4183119.0M$4.18B
2025Q3135120.6M$3.42B
2025Q2129116.2M$2.11B
2025Q1124111.1M$2.28B
2024Q412998.6M$2.53B
2024Q310077.1M$1.28B
2024Q29072.0M$1.38B
2024Q17672.2M$1.71B
2023Q43261.9M$691M
2023Q33550.2M$464M
2023Q22948.8M$581M
2023Q11933.3M$445M
2022Q41433.5M$362M
Largest reported holders, 2026Q2
HolderShares% of companyValue
Frazier Life Sciences Management, L.P.18.1M15%$613M
Capital World Investors12.2M10%$414M
FMR LLC10.3M8.5%$350M
RA CAPITAL MANAGEMENT, L.P.9.6M7.8%$324M
FCPM III SERVICES B.V.8.5M7.0%$288M
DEERFIELD MANAGEMENT CO /NY4.3M3.5%$145M
VIKING GLOBAL INVESTORS LP4.2M3.5%$142M
Bain Capital Life Sciences Investors, LLC3.8M3.1%$129M
MAVERICK CAPITAL LTD3.3M2.7%$111M
Duquesne Family Office LLC3.1M2.5%$104M
Short interest by settlement date, Aug 29, 2025 to Sep 15, 2026
SettlementShares shortOf shares outstandingDays to cover
Sep 15, 202615.7M13%9.9
Aug 31, 202613.4M11%13.4
Aug 14, 202612.7M10%9.9
Jul 31, 202610.0M8.2%9.8
Jul 15, 20269.2M7.5%11.2
Jun 30, 20269.1M7.5%6.9
Jun 15, 20269.2M7.5%7.3
May 29, 20268.1M6.7%6.2
May 15, 20267.1M5.9%3.7
Apr 30, 20267.9M6.5%8.9
Apr 15, 20267.7M6.3%8.7
Mar 31, 20268.0M6.6%9.6

SEC Form 13F data sets (DERA bulk files). 13F is quarterly, filed up to 45 days late, and covers long US equity positions only, no shorts, no derivatives, nothing held below the reporting threshold. The short position is FINRA's consolidated count for each twice-monthly settlement date, as a share of shares outstanding.

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