PHS
MBX

PFM Health Sciences’s MBX Biosciences MBX Stock Holding History

PFM Health Sciences’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 		$2.15M Sell
71,894
-7,416
-9% -$252K 0.2% 77
2025
Q4 		$2.5M Sell
79,310
-142,195
-64% -$3.45M 0.25% 66
2025
Q3 		$3.88M Buy
+221,505
New +$2.96M 0.3% 57

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

PFM Health Sciences's MBX Position: Q1 2026 in Review

PFM Health Sciences reduced its MBX Biosciences (MBX) stake by 9.4% in Q1 2026, selling an estimated $252K and leaving 71,894 shares worth $2.15M. The position accounts for 0.2% of the portfolio, ranked #77.

PFM Health Sciences first reported a position in MBX in Q3 2025 and has held it in 3 quarters since. The position peaked at $3.88M in Q3 2025. 157 funds tracked by Wall St. Rank hold MBX as of Q1 2026.

  • PFM Health Sciences held 71,894 shares of MBX Biosciences worth $2.15M as of Q1 2026.
  • PFM Health Sciences sold 7,416 MBX Biosciences shares in Q1 2026, an estimated $252K.
  • MBX Biosciences made up 0.2% of PFM Health Sciences's portfolio in Q1 2026, its #77 holding.
  • PFM Health Sciences first reported a position in MBX Biosciences in Q3 2025 and has held it in 3 quarters since.
  • PFM Health Sciences's MBX Biosciences position peaked at $3.88M in Q3 2025.
  • 157 funds tracked by Wall St. Rank held MBX Biosciences as of Q1 2026.

Based on PFM Health Sciences's 13F filing for Q1 2026, filed 15 May 2026.