Janus Henderson Group
NAMS icon

Janus Henderson Group’s NewAmsterdam Pharma NAMS Stock Holding History

Janus Henderson Group’s Portfolio NAMS Stock Details NAMS Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$72.3M Sell
2,258,984
-82,739
-4% -$2.7M 0.03% 340
2025
Q4 		$82.3M Buy
2,341,723
+224,648
+11% +$8.18M 0.04% 322
2025
Q3 		$60.1M Buy
2,117,075
+155,015
+8% +$3.72M 0.03% 371
2025
Q2 		$35.6M Sell
1,962,060
-237,573
-11% -$4.33M 0.02% 452
2025
Q1 		$47.9M Buy
2,199,633
+462,856
+27% +$10.3M 0.03% 383
2024
Q4 		$44.7M Buy
1,736,777
+196,048
+13% +$4.16M 0.02% 404
2024
Q3 		$25.6M Buy
1,540,729
+520,772
+51% +$9.01M 0.01% 525
2024
Q2 		$19.6M Buy
1,019,957
+383,726
+60% +$7.7M 0.01% 571
2024
Q1 		$15M Buy
+636,231
New +$12.9M 0.01% 612
2023
Q4 		– Sell
-434,912
Closed -$3.97M – 2587
2023
Q3 		$3.97M Buy
+434,912
New +$4.71M ﹤0.01% 887
2023
Q1 		– Sell
-563,119
Closed -$5.33M – 2708
2022
Q4 		$5.33M Buy
+563,119
New +$5.6M ﹤0.01% 847

Other funds holding NAMS

FLSM
Frazier Life Sciences Management Palo Alto, California $3.89B AUM 201.1% 1-Year Est. Return
Capital World Investors
Capital World Investors Los Angeles, California $733B AUM 35.63% 1-Year Est. Return
RCM
RA Capital Management Boston, Massachusetts $9.44B AUM 157.3% 1-Year Est. Return
FIS
FCPM III Services Naarden, Netherlands $722M AUM 73.61% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
BCLSI
Bain Capital Life Sciences Investors Boston, Massachusetts $1.11B AUM 171.34% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
DM
Deerfield Management New York $8.48B AUM 99.04% 1-Year Est. Return
Viking Global Investors
Viking Global Investors Stamford, Connecticut $35.7B AUM 21.3% 1-Year Est. Return
DFO
Duquesne Family Office New York $2.94B AUM 61.92% 1-Year Est. Return