BlackRock
LBRX

BlackRock’s LB Pharmaceuticals LBRX Stock Holding History

BlackRock’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 		$60.9M Buy
2,470,845
+231,911
+10% +$5.35M ﹤0.01% 2385
2025
Q4 		$49.8M Buy
2,238,934
+1,263,934
+130% +$22.1M ﹤0.01% 2523
2025
Q3 		$15.4M Buy
+975,000
New +$15.5M ﹤0.01% 3242

Other funds holding LBRX

DTC
Deep Track Capital Greenwich, Connecticut $6.12B AUM 144% 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
Balyasny Asset Management
Balyasny Asset Management Chicago, Illinois $77.1B AUM 42.89% 1-Year Est. Return

BlackRock's LBRX Position: Q1 2026 in Review

BlackRock increased its LB Pharmaceuticals (LBRX) stake by 10% in Q1 2026, buying an estimated $5.35M and bringing the position to 2,470,845 shares worth $60.9M. The position accounts for ﹤0.01% of the portfolio, ranked #2385.

BlackRock first reported a position in LBRX in Q3 2025 and has held it in 3 quarters since. 77 funds tracked by Wall St. Rank hold LBRX as of Q1 2026.

  • BlackRock held 2,470,845 shares of LB Pharmaceuticals worth $60.9M as of Q1 2026.
  • BlackRock bought 231,911 LB Pharmaceuticals shares in Q1 2026, an estimated $5.35M.
  • LB Pharmaceuticals made up ﹤0.01% of BlackRock's portfolio in Q1 2026, its #2385 holding.
  • BlackRock first reported a position in LB Pharmaceuticals in Q3 2025 and has held it in 3 quarters since.
  • 77 funds tracked by Wall St. Rank held LB Pharmaceuticals as of Q1 2026.

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