Simplex Trading
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Simplex Trading’s NewAmsterdam Pharma NAMS Stock Holding History

Simplex Trading’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 		$1.36M Sell
42,500
-1,500
-3% -$48.9K ﹤0.01% 2178
2025
Q4 		$1.54M Buy
44,000
+43,700
+14,567% +$1.59M ﹤0.01% 2193
2025
Q3 		$8K Sell
300
-10,100
-97% -$242K ﹤0.01% 8036
2025
Q2 		$188K Buy
10,400
+9,600
+1,200% +$175K ﹤0.01% 4575
2025
Q1 		$16K Sell
800
-32,100
-98% -$714K ﹤0.01% 6756
2024
Q4 		$845K Buy
32,900
+32,700
+16,350% +$695K ﹤0.01% 3012
2024
Q3 		$3K Hold
200
– – ﹤0.01% 7859
2024
Q2 		$1K Buy
+200
New +$4.01K ﹤0.01% 8499

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

Simplex Trading's NAMS Position: Q4 2025 in Review

Simplex Trading sold out of NewAmsterdam Pharma (NAMS) in Q4 2025, closing a stake of 3,372 shares — an estimated $123K sold.

Simplex Trading first reported a position in NAMS in Q3 2024 and held it in 5 quarters. The position peaked at $101K in Q2 2025. 186 funds tracked by Wall St. Rank hold NAMS as of Q4 2025.

  • Simplex Trading reported no remaining NewAmsterdam Pharma position as of Q4 2025 after selling out during the quarter.
  • Simplex Trading sold 3,372 NewAmsterdam Pharma shares in Q4 2025, an estimated $123K.
  • Simplex Trading first reported a position in NewAmsterdam Pharma in Q3 2024 and held it in 5 quarters.
  • Simplex Trading's NewAmsterdam Pharma position peaked at $101K in Q2 2025.
  • 186 funds tracked by Wall St. Rank held NewAmsterdam Pharma as of Q4 2025.

Based on Simplex Trading's 13F filing for Q4 2025, filed 11 Feb 2026.