DCM
MBX

Driehaus Capital Management’s MBX Biosciences MBX Stock Holding History

Driehaus 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
Q1 		$30.4M Sell
1,018,212
-389,947
-28% -$13.3M 0.22% 149
2025
Q4 		$44.4M Sell
1,408,159
-131,480
-9% -$3.19M 0.3% 112
2025
Q3 		$26.9M Sell
1,539,639
-32,267
-2% -$431K 0.19% 170
2025
Q2 		$17.9M Sell
1,571,906
-7,301
-0.5% -$74.4K 0.14% 192
2025
Q1 		$11.7M Sell
1,579,207
-2,553
-0.2% -$27K 0.11% 223
2024
Q4 		$29.2M Buy
1,581,760
+600,438
+61% +$12.8M 0.24% 131
2024
Q3 		$25.5M Buy
+981,322
New +$22.4M 0.22% 137

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

Driehaus Capital Management's MBX Position: Q1 2026 in Review

Driehaus Capital Management reduced its MBX Biosciences (MBX) stake by 28% in Q1 2026, selling an estimated $13.3M and leaving 1,018,212 shares worth $30.4M. The position accounts for 0.22% of the portfolio, ranked #149.

Driehaus Capital Management first reported a position in MBX in Q3 2024 and has held it in 7 quarters since. The position peaked at $44.4M in Q4 2025. 157 funds tracked by Wall St. Rank hold MBX as of Q1 2026.

  • Driehaus Capital Management held 1,018,212 shares of MBX Biosciences worth $30.4M as of Q1 2026.
  • Driehaus Capital Management sold 389,947 MBX Biosciences shares in Q1 2026, an estimated $13.3M.
  • MBX Biosciences made up 0.22% of Driehaus Capital Management's portfolio in Q1 2026, its #149 holding.
  • Driehaus Capital Management first reported a position in MBX Biosciences in Q3 2024 and has held it in 7 quarters since.
  • Driehaus Capital Management's MBX Biosciences position peaked at $44.4M in Q4 2025.
  • 157 funds tracked by Wall St. Rank held MBX Biosciences as of Q1 2026.

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