CAM
MBX

Cormorant Asset Management’s MBX Biosciences MBX Stock Holding History

Cormorant Asset Management’s Portfolio MBX Stock Details MBX Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$33.4M Hold
1,120,000
– – 1.68% 17
2025
Q4 		$35.3M Sell
1,120,000
-105,000
-9% -$2.55M 1.63% 17
2025
Q3 		$21.4M Buy
1,225,000
+525,000
+75% +$7.02M 1.48% 18
2025
Q2 		$7.99M Hold
700,000
– – 0.59% 31
2025
Q1 		$5.17M Hold
700,000
– – 0.39% 37
2024
Q4 		$12.9M Hold
700,000
– – 0.71% 33
2024
Q3 		$18.2M Buy
+700,000
New +$16M 0.96% 32

Other funds holding MBX

FLSM
Frazier Life Sciences Management Palo Alto, California $3.89B AUM 201.1% 1-Year Est. Return
O
OrbiMed New York $5.05B AUM 125.28% 1-Year Est. Return
NMC
NEA Management Company Timonium, Maryland $1.76B AUM 223.33% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
DTC
Deep Track Capital Greenwich, Connecticut $6.12B AUM 144% 1-Year Est. Return
NA
NVP Associates Menlo Park, California $176M AUM 208.78% 1-Year Est. Return
PCH
Polar Capital Holdings London, United Kingdom $28.2B AUM 115.26% 1-Year Est. Return
B
Braidwell Stamford, Connecticut $3B AUM 46.72% 1-Year Est. Return

Cormorant Asset Management's MBX Position: Q1 2026 in Review

Cormorant Asset Management held its MBX Biosciences (MBX) position steady in Q1 2026 at 1,120,000 shares worth $33.4M. The position accounts for 1.68% of the portfolio, ranked #17.

Cormorant Asset Management first reported a position in MBX in Q3 2024 and has held it in 7 quarters since. The position peaked at $35.3M in Q4 2025. 157 funds tracked by Wall St. Rank hold MBX as of Q1 2026.

  • Cormorant Asset Management held 1,120,000 shares of MBX Biosciences worth $33.4M as of Q1 2026.
  • Cormorant Asset Management left its MBX Biosciences share count unchanged in Q1 2026.
  • MBX Biosciences made up 1.68% of Cormorant Asset Management's portfolio in Q1 2026, its #17 holding.
  • Cormorant Asset Management first reported a position in MBX Biosciences in Q3 2024 and has held it in 7 quarters since.
  • Cormorant Asset Management's MBX Biosciences position peaked at $35.3M in Q4 2025.
  • 157 funds tracked by Wall St. Rank held MBX Biosciences as of Q1 2026.

Based on Cormorant Asset Management's 13F filing for Q1 2026, filed 15 May 2026.