XT
LBRX

XTX Topco’s LB Pharmaceuticals LBRX Stock Holding History

XTX Topco’s Portfolio LBRX Stock Details LBRX Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		– Sell
-19,121
Closed -$426K – 4577
2025
Q4 		$426K Buy
19,121
+7,845
+70% +$137K 0.01% 1757
2025
Q3 		$178K Buy
+11,276
New +$179K 0.01% 1886

Other funds holding LBRX

DTC
Deep Track Capital Greenwich, Connecticut $6.12B AUM 144% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
RCM
RA Capital Management Boston, Massachusetts $9.44B AUM 157.3% 1-Year Est. Return
TCM
TCG Crossover Management Palo Alto, California $3.5B AUM 1,165.83% 1-Year Est. Return
CC
Commodore Capital New York $1.73B AUM 298.96% 1-Year Est. Return
CP
Caligan Partners New York $1.5B AUM 518.95% 1-Year Est. Return
SSC
Spruce Street Capital New York $416M AUM
JP Morgan Chase
JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return
TECP
Trails Edge Capital Partners Atlanta, Georgia $437M AUM
NCM
Nantahala Capital Management New Canaan, Connecticut $2.72B AUM 121.58% 1-Year Est. Return

XTX Topco's LBRX Position: Q1 2026 in Review

XTX Topco sold out of LB Pharmaceuticals (LBRX) in Q1 2026, closing a stake of 19,121 shares — an estimated $426K sold.

XTX Topco first reported a position in LBRX in Q3 2025 and held it in 2 quarters. The position peaked at $426K in Q4 2025. 77 funds tracked by Wall St. Rank hold LBRX as of Q1 2026.

  • XTX Topco reported no remaining LB Pharmaceuticals position as of Q1 2026 after selling out during the quarter.
  • XTX Topco sold 19,121 LB Pharmaceuticals shares in Q1 2026, an estimated $426K.
  • XTX Topco first reported a position in LB Pharmaceuticals in Q3 2025 and held it in 2 quarters.
  • XTX Topco's LB Pharmaceuticals position peaked at $426K in Q4 2025.
  • 77 funds tracked by Wall St. Rank held LB Pharmaceuticals as of Q1 2026.

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