MIRM in the 13F filings
Mirum Pharmaceuticals Inc · CUSIP 604749101
- Quarter end
- 30 Jun 2026
- the date the book describes
- Filed
- 27 Oct 2026
- latest of these filings; the earliest 3 Aug 2026
- Managers listing it
- 23
- at least, of 95 tracked, among listed positions
- Comparable managers
- 91
- filed both Q1 2026 and Q2 2026; 9 listed it in both
- Shares listed
- 19,179,828
- combined, among listed positions
- Reported value
- $2.2bn
- combined, at the quarter end
AllianceBernstein LP. Values in this filing are at the previous quarter end's prices; its share count is the quarter end's.
Among the 91 comparable managers: 11 buyers (opened or added shares) and 20 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was +830,232.
Managers listing MIRM in Q2 2026
23 of 23 holders
Largest increases and reductions, by shares
Increases
- Fidelity (FMR LLC)existing position · 3,670,314 shares now+1,704,939
- Invesco Ltdexisting position · 1,364,084 shares now+1,078,848
- T. Rowe Price Associates Incexisting position · 2,655,607 shares now+938,186
- Capital World Investorsexisting position · 1,153,480 shares now+429,065
- MFS Investment Managementexisting position · 384,570 shares now+98,164
Reductions
- Janus Henderson Group Ltdexisting position · 5,909,184 shares now-1,036,629
- Millennium Management LLCexisting position · 96,213 shares now-272,362
- Renaissance Technologies LLCexisting position · 442,185 shares now-139,900
- D. E. Shaw & Co.existing position · 27,879 shares now-139,610
- Two Sigma Investments LPexisting position · 690,318 shares now-84,523
New positions and exits
New (3)
Exited (9)
- Citadel Advisors LLCwas $97m
- Point72 Asset Management LPwas $32m
- Voloridge Investment Management LLCwas $9.6m
- ExodusPoint Capital Management LPwas $8.1m
- Arrowstreet Capital LPwas $6.3m
- Hudson Bay Capital Management LPwas $788k
- Marshall Wace LLPwas $430k
- Farallon Capital Management LLCwas $277k
- Winton Group Ltdwas $202k
Ownership over time
Tracked managers listing it, at least.
| Quarter | Holders | Reported value | Buyers | Sellers |
|---|---|---|---|---|
| Q4 2020 | 1 | $1.7m | n.a. | n.a. |
| Q3 2022 | 1 | $7.5m | n.a. | n.a. |
| Q4 2022 | 1 | $7.0m | n.a. | n.a. |
| Q1 2023 | 2 | $26m | n.a. | n.a. |
| Q2 2023 | 2 | $24m | n.a. | n.a. |
| Q3 2023 | 3 | $87m | n.a. | n.a. |
| Q4 2023 | 2 | $68m | 1 | 1 |
| Q1 2024 | 2 | $75m | 1 | 1 |
| Q2 2024 | 3 | $179m | 2 | 1 |
| Q3 2024 | 3 | $192m | 2 | 1 |
| Q4 2024 | 3 | $211m | 3 | 0 |
| Q1 2025 | 3 | $251m | 3 | 0 |
| Q2 2025 | 4 | $304m | 4 | 0 |
| Q3 2025 | 10 | $609m | 6 | 2 |
| Q4 2025 | 8 | $613m | 14 | 15 |
| Q1 2026 | 11 | $1.1bn | 20 | 11 |
| Q2 2026 | 10 | $1.6bn | 11 | 20 |
Compare with…
Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.
MIRM and LLY →MIRM and JNJ →MIRM and VRTX →Choose a stock to compare with MIRM →
How much of the picture this is
A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.
Which funds own MIRM, latest filings →Back to the 13F Explorer →