Group One Trading
MBX

Group One Trading’s MBX Biosciences MBX Stock Holding History

Group One Trading’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 		– Sell
-200
Closed -$5.97K – 8693
2026
Q1 		$5.97K Sell
200
-3,400
-94% -$116K ﹤0.01% 6628
2025
Q4 		$114K Sell
3,600
-86,400
-96% -$2.1M ﹤0.01% 4893
2025
Q3 		$1.57M Buy
+90,000
New +$1.2M ﹤0.01% 2558

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

Group One Trading's MBX Position: Q2 2026 in Review

Group One Trading reduced its MBX Biosciences (MBX) stake by 16% in Q2 2026, selling an estimated $35.6K and leaving 5,231 shares worth $289K. The position accounts for ﹤0.01% of the portfolio, ranked #3983.

Group One Trading first reported a position in MBX in Q4 2025 and has held it in 3 quarters since. The position peaked at $297K in Q4 2025. 173 funds tracked by Wall St. Rank hold MBX as of Q2 2026.

  • Group One Trading held 5,231 shares of MBX Biosciences worth $289K as of Q2 2026.
  • Group One Trading sold 1,020 MBX Biosciences shares in Q2 2026, an estimated $35.6K.
  • MBX Biosciences made up ﹤0.01% of Group One Trading's portfolio in Q2 2026, its #3983 holding.
  • Group One Trading first reported a position in MBX Biosciences in Q4 2025 and has held it in 3 quarters since.
  • Group One Trading's MBX Biosciences position peaked at $297K in Q4 2025.
  • 173 funds tracked by Wall St. Rank held MBX Biosciences as of Q2 2026.

Based on Group One Trading's 13F filing for Q2 2026, filed 14 Aug 2026.