Soleus Capital Management
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Soleus Capital Management’s MBX Biosciences MBX Stock Holding History

Soleus Capital 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
Q2 		$28.4M Buy
515,279
+336,382
+188% +$11.7M 0.98% 30
2026
Q1 		$5.34M Sell
178,897
-230,003
-56% -$7.82M 0.22% 64
2025
Q4 		$12.9M Buy
408,900
+133,900
+49% +$3.25M 0.48% 45
2025
Q3 		$4.81M Buy
+275,000
New +$3.68M 0.24% 59

Other funds holding MBX

Frazier Life Sciences Management
Frazier Life Sciences Management Palo Alto, California $4.59B AUM 237.58% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return
NEA Management Company
NEA Management Company Timonium, Maryland $1.59B AUM 234.06% 1-Year Est. Return
OrbiMed
OrbiMed New York $5.4B AUM 163.13% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Paradigm Biocapital Advisors
Paradigm Biocapital Advisors New York $5.34B AUM 380.18% 1-Year Est. Return
NVP Associates
NVP Associates Menlo Park, California $328M AUM 166.51% 1-Year Est. Return
Deep Track Capital
Deep Track Capital Greenwich, Connecticut $6.87B AUM 205.24% 1-Year Est. Return
Polar Capital Holdings
Polar Capital Holdings London, United Kingdom $42.4B AUM 181.11% 1-Year Est. Return

Soleus Capital Management's MBX Position: Q2 2026 in Review

Soleus Capital Management increased its MBX Biosciences (MBX) stake by 188% in Q2 2026, buying an estimated $11.7M and bringing the position to 515,279 shares worth $28.4M. The position accounts for 0.98% of the portfolio, ranked #30.

Soleus Capital Management first reported a position in MBX in Q3 2025 and has held it in 4 quarters since. 172 funds tracked by Wall St. Rank hold MBX as of Q2 2026.

  • Soleus Capital Management held 515,279 shares of MBX Biosciences worth $28.4M as of Q2 2026.
  • Soleus Capital Management bought 336,382 MBX Biosciences shares in Q2 2026, an estimated $11.7M.
  • MBX Biosciences made up 0.98% of Soleus Capital Management's portfolio in Q2 2026, its #30 holding.
  • Soleus Capital Management first reported a position in MBX Biosciences in Q3 2025 and has held it in 4 quarters since.
  • 172 funds tracked by Wall St. Rank held MBX Biosciences as of Q2 2026.

Based on Soleus Capital Management's 13F filing for Q2 2026, filed 11 Aug 2026.