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Jane Street’s Mirum Pharmaceuticals MIRM Stock Holding History

Jane Street’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
Q1 		$268K Hold
2,900
– – ﹤0.01% 9482
2025
Q4 		$229K Sell
2,900
-75,500
-96% -$5.42M ﹤0.01% 9440
2025
Q3 		$5.75M Buy
78,400
+400
+0.5% +$25.4K ﹤0.01% 3217
2025
Q2 		$3.97M Buy
78,000
+100
+0.1% +$4.45K ﹤0.01% 3336
2025
Q1 		$3.51M Buy
77,900
+100
+0.1% +$4.71K ﹤0.01% 3474
2024
Q4 		$3.22M Sell
77,800
-9,200
-11% -$383K ﹤0.01% 3328
2024
Q3 		$3.39M Buy
87,000
+78,700
+948% +$3.14M ﹤0.01% 3507
2024
Q2 		$284K Hold
8,300
– – ﹤0.01% 7886
2024
Q1 		$208K Sell
8,300
-12,100
-59% -$333K ﹤0.01% 8126
2023
Q4 		$602K Buy
20,400
+600
+3% +$18.2K ﹤0.01% 6450
2023
Q3 		$626K Buy
19,800
+6,300
+47% +$173K ﹤0.01% 5925
2023
Q2 		$349K Buy
+13,500
New +$359K ﹤0.01% 6893
2022
Q3 		– Sell
-14,100
Closed -$274K – 10152
2022
Q2 		$274K Buy
14,100
+100
+0.7% +$2.36K ﹤0.01% 7756
2022
Q1 		$308K Buy
+14,000
New +$286K ﹤0.01% 8360

Other funds holding MIRM

FLSM
Frazier Life Sciences Management Palo Alto, California $3.89B AUM 201.1% 1-Year Est. Return
Janus Henderson Group
Janus Henderson Group London, United Kingdom $209B AUM 37.72% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return
BI
BVF Inc San Francisco, California $3.14B AUM 249.53% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
EAM
Eventide Asset Management Boston, Massachusetts $6.05B AUM 76.64% 1-Year Est. Return

Jane Street's MIRM Position: Q4 2025 in Review

Jane Street sold out of Mirum Pharmaceuticals (MIRM) in Q4 2025, closing a stake of 254,485 shares — an estimated $18.3M sold.

Jane Street first reported a position in MIRM in Q3 2021 and held it in 14 quarters. The position peaked at $18.7M in Q3 2025. 281 funds tracked by Wall St. Rank hold MIRM as of Q4 2025.

  • Jane Street reported no remaining Mirum Pharmaceuticals position as of Q4 2025 after selling out during the quarter.
  • Jane Street sold 254,485 Mirum Pharmaceuticals shares in Q4 2025, an estimated $18.3M.
  • Jane Street first reported a position in Mirum Pharmaceuticals in Q3 2021 and held it in 14 quarters.
  • Jane Street's Mirum Pharmaceuticals position peaked at $18.7M in Q3 2025.
  • 281 funds tracked by Wall St. Rank held Mirum Pharmaceuticals as of Q4 2025.

Based on Jane Street's 13F filing for Q4 2025, filed 12 Feb 2026.