Jane Street
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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
2025
Q4 		– Sell
-254,485
Closed -$18.3M – 11898
2025
Q3 		$18.7M Buy
254,485
+233,047
+1,087% +$14.8M ﹤0.01% 1729
2025
Q2 		$1.09M Sell
21,438
-159,346
-88% -$7.09M ﹤0.01% 5453
2025
Q1 		$8.14M Buy
180,784
+8,151
+5% +$384K ﹤0.01% 2257
2024
Q4 		$7.14M Buy
172,633
+81,549
+90% +$3.4M ﹤0.01% 2231
2024
Q3 		$3.55M Sell
91,084
-31,580
-26% -$1.26M ﹤0.01% 3427
2024
Q2 		$4.19M Buy
122,664
+8,059
+7% +$211K ﹤0.01% 3248
2024
Q1 		$2.88M Buy
114,605
+82,896
+261% +$2.28M ﹤0.01% 3472
2023
Q4 		$936K Sell
31,709
-33,933
-52% -$1.03M ﹤0.01% 5681
2023
Q3 		$2.07M Sell
65,642
-182,032
-73% -$4.98M ﹤0.01% 4003
2023
Q2 		$6.41M Buy
247,674
+202,379
+447% +$5.38M ﹤0.01% 2415
2023
Q1 		$1.09M Buy
+45,295
New +$1.03M ﹤0.01% 4838
2022
Q3 		– Sell
-10,476
Closed -$204K – 10151
2022
Q2 		$204K Sell
10,476
-9,096
-46% -$215K ﹤0.01% 8164
2022
Q1 		$431K Buy
+19,572
New +$399K ﹤0.01% 7755
2021
Q4 		– Sell
-15,676
Closed -$312K – 10545
2021
Q3 		$312K Buy
+15,676
New +$255K ﹤0.01% 8108

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.