XT
NAMS icon

XTX Topco’s NewAmsterdam Pharma NAMS Stock Holding History

XTX Topco’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
Q2 		$4.91M Buy
145,008
+249
+0.2% +$8.21K 0.06% 396
2026
Q1 		$4.63M Buy
144,759
+7,267
+5% +$237K 0.08% 324
2025
Q4 		$4.82M Buy
137,492
+129,913
+1,714% +$4.73M 0.13% 141
2025
Q3 		$216K Buy
+7,579
New +$182K 0.01% 1787
2024
Q4 		– Sell
-11,265
Closed -$187K – 2715
2024
Q3 		$187K Buy
+11,265
New +$195K 0.01% 1463

Other funds holding NAMS

FLSM
Frazier Life Sciences Management Palo Alto, California $4.59B AUM 237.58% 1-Year Est. Return
Capital World Investors
Capital World Investors Los Angeles, California $846B AUM 46.74% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
RCM
RA Capital Management Boston, Massachusetts $11.5B AUM 168.77% 1-Year Est. Return
FIS
FCPM III Services Naarden, Netherlands $750M AUM 127.27% 1-Year Est. Return
DM
Deerfield Management New York $9.59B AUM 113.36% 1-Year Est. Return
Viking Global Investors
Viking Global Investors Stamford, Connecticut $35.1B AUM 21.36% 1-Year Est. Return
BCLSI
Bain Capital Life Sciences Investors Boston, Massachusetts $1.68B AUM 126.09% 1-Year Est. Return
MC
Maverick Capital Dallas, Texas $11.3B AUM 76.6% 1-Year Est. Return
DFO
Duquesne Family Office New York $5.21B AUM 87.01% 1-Year Est. Return

XTX Topco's NAMS Position: Q2 2026 in Review

XTX Topco increased its NewAmsterdam Pharma (NAMS) stake by 0.17% in Q2 2026, buying an estimated $8.21K and bringing the position to 145,008 shares worth $4.91M. The position accounts for 0.06% of the portfolio, ranked #396.

XTX Topco first reported a position in NAMS in Q3 2024 and has held it in 5 quarters since. 195 funds tracked by Wall St. Rank hold NAMS as of Q2 2026.

  • XTX Topco held 145,008 shares of NewAmsterdam Pharma worth $4.91M as of Q2 2026.
  • XTX Topco bought 249 NewAmsterdam Pharma shares in Q2 2026, an estimated $8.21K.
  • NewAmsterdam Pharma made up 0.06% of XTX Topco's portfolio in Q2 2026, its #396 holding.
  • XTX Topco first reported a position in NewAmsterdam Pharma in Q3 2024 and has held it in 5 quarters since.
  • 195 funds tracked by Wall St. Rank held NewAmsterdam Pharma as of Q2 2026.

Based on XTX Topco's 13F filing for Q2 2026, filed 14 Aug 2026.