Mirum Pharmaceuticals, Inc.
DE ˙ DB ˙ US6047491013
77,12 € ↓ -4,88 (-5,95%)
2026-06-03
DEL PRIS
SecurityDE:08D / Mirum Pharmaceuticals, Inc.
InstitutionCitigroup Inc
Latest Disclosed Ownership153,470 shares
Latest Disclosed Value $ 14,177,559
Citigroup Inc reports 5.12% increase in ownership of 08D / Mirum Pharmaceuticals, Inc.

On May 11, 2026 - Citigroup Inc filed a 13F-HR form disclosing ownership of 153,470 shares of Mirum Pharmaceuticals, Inc. (DE:08D) valued at $11,510,250 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 145,992 shares of Mirum Pharmaceuticals, Inc.. This represents a change in shares of 5.12% during the quarter. The current value of the position is $11,835,606 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-11 2026-03-31 13F MIRUM PHARMACEUTICALS COM 604749101 153,470 7,478 5.12 14,178 22.95 0.0060
2026-02-13 2025-12-31 13F MIRUM PHARMACEUTICALS COM 604749101 145,992 -1,260 -0.86 11,532 6.82 0.0051
2025-11-10 2025-09-30 13F MIRUM PHARMACEUTICALS COM 604749101 147,252 76,545 108.26 10,795 200.03 0.0048
2025-08-11 2025-06-30 13F MIRUM PHARMACEUTICALS COM 604749101 70,707 -63,014 -47.12 3,598 -40.27 0.0018
2025-05-12 2025-03-31 13F MIRUM PHARMACEUTICALS COM 604749101 133,721 -72 -0.05 6,024 8.89 0.0031
2025-02-12 2024-12-31 13F MIRUM PHARMACEUTICALS COM 604749101 133,793 -17,700 -11.68 5,532 -6.36 0.0033
2024-11-12 2024-09-30 13F MIRUM PHARMACEUTICALS COM 604749101 151,493 -61,011 -28.71 5,908 -18.68 0.0034
2024-08-12 2024-06-30 13F MIRUM PHARMACEUTICALS COM 604749101 212,504 -158,547 -42.73 7,266 -22.05 0.0047
2024-05-10 2024-03-31 13F MIRUM PHARMACEUTICALS COM 604749101 371,051 285,820 335.35 9,321 270.43 0.0061
2024-02-09 2023-12-31 13F MIRUM PHARMACEUTICALS COM 604749101 85,231 26,508 45.14 2,516 35.63 0.0018
2023-12-06 2023-09-30 13F/A-1 MIRUM PHARMACEUTICALS COM 604749101 58,723 17,917 43.91 1,856 75.83 0.0014
2023-11-09 2023-09-30 13F MIRUM PHARMACEUTICALS COM 604749101 58,723 17,917 1,856 0.0006
2023-08-10 2023-06-30 13F MIRUM PHARMACEUTICALS COM 604749101 40,806 -28,571 -41.18 1,056 -36.67 0.0007
2023-05-11 2023-03-31 13F MIRUM PHARMACEUTICALS COM 604749101 69,377 -98,196 -58.60 1,666 -49.01 0.0012
2023-02-09 2022-12-31 13F MIRUM PHARMACEUTICALS COM 604749101 167,573 29,407 21.28 3,268 12.54 0.0026
2022-11-10 2022-09-30 13F MIRUM PHARMACEUTICALS COM 604749101 138,166 136,395 7,701.58 2,903 8,438.24 0.0021
2022-08-10 2022-06-30 13F MIRUM PHARMACEUTICALS COM 604749101 1,771 966 120.00 34 88.89 0.0000
2022-05-12 2022-03-31 13F MIRUM PHARMACEUTICALS COM 604749101 805 -1,039 -56.34 18 -37.93 0.0000
2022-02-10 2021-12-31 13F MIRUM PHARMACEUTICALS COM 604749101 1,844 1,433 348.66 29 262.50 0.0000
2021-11-10 2021-09-30 13F MIRUM PHARMACEUTICALS COM 604749101 411 240 140.35 8 166.67 0.0000
2021-08-10 2021-06-30 13F MIRUM PHARMACEUTICALS COM 604749101 171 -228 -57.14 3 -62.50 0.0000
2021-05-13 2021-03-31 13F MIRUM PHARMACEUTICALS COM 604749101 399 -672 -62.75 8 -57.89 0.0000
2021-02-11 2020-12-31 13F MIRUM PHARMACEUTICALS COM 604749101 1,071 821 328.40 19 280.00 0.0000
2020-11-12 2020-09-30 13F MIRUM PHARMACEUTICALS COM 604749101 250 -498 -66.58 5 -66.67 0.0000
2020-08-12 2020-06-30 13F MIRUM PHARMACEUTICALS COM 604749101 748 154 25.93 15 87.50 0.0000
2020-05-12 2020-03-31 13F MIRUM PHARMACEUTICALS COM 604749101 594 54 10.00 8 -38.46 0.0000
2020-02-12 2019-12-31 13F MIRUM PHARMACEUTICALS COM 604749101 540 421 353.78 13 550.00 0.0000
2019-11-08 2019-09-30 13F MIRUM PHARMACEUTICALS COM 604749101 119 119 2 0.0000
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.