Ameriprise
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Ameriprise’s NewAmsterdam Pharma NAMS Stock Holding History

Ameriprise’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 		$24.1M Buy
753,054
+600,785
+395% +$19.6M 0.01% 1286
2025
Q4 		$5.34M Buy
152,269
+6,942
+5% +$253K ﹤0.01% 2385
2025
Q3 		$4.13M Sell
145,327
-62,754
-30% -$1.5M ﹤0.01% 2572
2025
Q2 		$3.77M Buy
208,081
+112,927
+119% +$2.06M ﹤0.01% 2564
2025
Q1 		$1.95M Buy
+95,154
New +$2.12M ﹤0.01% 2916

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 $3.38B AUM 61.92% 1-Year Est. Return

Ameriprise's NAMS Position: Q1 2026 in Review

Ameriprise increased its NewAmsterdam Pharma (NAMS) stake by 395% in Q1 2026, buying an estimated $19.6M and bringing the position to 753,054 shares worth $24.1M. The position accounts for 0.01% of the portfolio, ranked #1286.

Ameriprise first reported a position in NAMS in Q1 2025 and has held it in 5 quarters since. 170 funds tracked by Wall St. Rank hold NAMS as of Q1 2026.

  • Ameriprise held 753,054 shares of NewAmsterdam Pharma worth $24.1M as of Q1 2026.
  • Ameriprise bought 600,785 NewAmsterdam Pharma shares in Q1 2026, an estimated $19.6M.
  • NewAmsterdam Pharma made up 0.01% of Ameriprise's portfolio in Q1 2026, its #1286 holding.
  • Ameriprise first reported a position in NewAmsterdam Pharma in Q1 2025 and has held it in 5 quarters since.
  • 170 funds tracked by Wall St. Rank held NewAmsterdam Pharma as of Q1 2026.

Based on Ameriprise's 13F filing for Q1 2026, filed 15 May 2026.