CA
MBX

Cliff Asness’s MBX Biosciences MBX Stock Holding History

Cliff Asness’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 		$1.25M Sell
22,591
-4,796
-18% -$168K ﹤0.01% 2882
2026
Q1 		$818K Sell
27,387
-4,022
-13% -$137K ﹤0.01% 2880
2025
Q4 		$991K Buy
31,409
+15,645
+99% +$380K ﹤0.01% 2562
2025
Q3 		$276K Sell
15,764
-2,237
-12% -$29.9K ﹤0.01% 3122
2025
Q2 		$205K Buy
+18,001
New +$183K ﹤0.01% 3037

Other funds holding MBX

FLSM
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
NMC
NEA Management Company Timonium, Maryland $1.59B AUM 234.06% 1-Year Est. Return
O
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
PBA
Paradigm Biocapital Advisors New York $5.34B AUM 380.18% 1-Year Est. Return
NA
NVP Associates Menlo Park, California $328M AUM 166.51% 1-Year Est. Return
DTC
Deep Track Capital Greenwich, Connecticut $6.87B AUM 205.24% 1-Year Est. Return
PCH
Polar Capital Holdings London, United Kingdom $42.4B AUM 181.11% 1-Year Est. Return

Cliff Asness's MBX Position: Q2 2026 in Review

Cliff Asness reduced its MBX Biosciences (MBX) stake by 18% in Q2 2026, selling an estimated $168K and leaving 22,591 shares worth $1.25M. The position accounts for ﹤0.01% of the portfolio, ranked #2882.

Cliff Asness first reported a position in MBX in Q2 2025 and has held it in 5 quarters since. 171 funds tracked by Wall St. Rank hold MBX as of Q2 2026.

  • Cliff Asness held 22,591 shares of MBX Biosciences worth $1.25M as of Q2 2026.
  • Cliff Asness sold 4,796 MBX Biosciences shares in Q2 2026, an estimated $168K.
  • MBX Biosciences made up ﹤0.01% of Cliff Asness's portfolio in Q2 2026, its #2882 holding.
  • Cliff Asness first reported a position in MBX Biosciences in Q2 2025 and has held it in 5 quarters since.
  • 171 funds tracked by Wall St. Rank held MBX Biosciences as of Q2 2026.

Based on AQR Capital Management's 13F filing for Q2 2026, filed 14 Aug 2026.