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XTX Topco’s Mirum Pharmaceuticals MIRM Stock Holding History

XTX Topco’s Portfolio MIRM Stock Details MIRM Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		– Sell
-19,307
Closed -$1.78M – 4500
2026
Q1 		$1.78M Sell
19,307
-20,942
-52% -$1.97M 0.03% 918
2025
Q4 		$3.18M Buy
+40,249
New +$2.89M 0.08% 298
2025
Q1 		– Sell
-14,861
Closed -$615K – 2810
2024
Q4 		$615K Buy
+14,861
New +$619K 0.05% 597
2024
Q3 		– Sell
-15,245
Closed -$521K – 2396
2024
Q2 		$521K Buy
+15,245
New +$400K 0.04% 638

Other funds holding MIRM

FLSM
Frazier Life Sciences Management Palo Alto, California $4.59B AUM 237.58% 1-Year Est. Return
JT
Jupiter Topco New York $245B AUM
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
William Blair Investment Management
William Blair Investment Management Chicago, Illinois $33.3B AUM 44.76% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

XTX Topco's MIRM Position: Q2 2026 in Review

XTX Topco sold out of Mirum Pharmaceuticals (MIRM) in Q2 2026, closing a stake of 19,307 shares — an estimated $1.78M sold.

XTX Topco first reported a position in MIRM in Q2 2024 and held it in 4 quarters. The position peaked at $3.18M in Q4 2025. 327 funds tracked by Wall St. Rank hold MIRM as of Q2 2026.

  • XTX Topco reported no remaining Mirum Pharmaceuticals position as of Q2 2026 after selling out during the quarter.
  • XTX Topco sold 19,307 Mirum Pharmaceuticals shares in Q2 2026, an estimated $1.78M.
  • XTX Topco first reported a position in Mirum Pharmaceuticals in Q2 2024 and held it in 4 quarters.
  • XTX Topco's Mirum Pharmaceuticals position peaked at $3.18M in Q4 2025.
  • 327 funds tracked by Wall St. Rank held Mirum Pharmaceuticals as of Q2 2026.

Based on XTX Topco's 13F filing for Q2 2026, filed 14 Aug 2026.