Latest Period
Q1 2026
Security Snapshot
Mirum Pharmaceuticals, Inc. - Common Stock (MIRM) Institutional Ownership
CUSIP: 604749101
13F Institutional Holders and Ownership History from Q3 2019 to Q1 2026
Institutions Reporting
307
Shares (Excl. Options)
68,242,269
Price
$92.38
Save this security page for your next review
Keep this CUSIP in your watchlists so you can revisit quarter changes from one place. If you create an account from here, we will bring you back after verification.
- Security type / class
- Equity / Common Stock
- Symbol
- MIRM on Nasdaq
- All holders as of 31 Mar 2026
- Q1 2026
- Total 13F shares
- 68,242,269
- Total 13F value
- $6,293,538,376
- Portfolio coverage rank
- 0.01%
- Share change
- +5,214,253
- Value change
- +$498,743,309
- Number of holders
- 307
- Shares outstanding
- 60,799,281
- SEC-reported price per share
- $109.16
- Insider filing price
- $109.16
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
3 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Key facts
- MIRM - Mirum Pharmaceuticals, Inc. - Common Stock is tracked under CUSIP 604749101.
- 307 institutions reported positions in Q1 2026.
- 5 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 279 to 307 between Q4 2025 and Q1 2026.
- SEC-reported value moved from $4,820,614,891 to $6,293,538,376.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 307 institutions filings for Q1 2026.
Security key
604749101
Latest holder period
Q1 2026
13F holders
307
13D/G owners
5
CIK / CUSIP context first
Open Q1 2026 holders
MIRM full holder history
Mirum Pharmaceuticals, Inc. SEC filings
Mirum Pharmaceuticals, Inc. company facts
Mirum Pharmaceuticals, Inc. insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 604749101:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
5
Security
MIRM
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| JANUS HENDERSON GROUP PLC | 12% | +11% | $479,098,679 | +$48,995,048 | 6,065,308 | +11% | JANUS HENDERSON GROUP PLC | 31 Dec 2025 |
| Frazier Life Sciences IX, L.P. | 6.8% | -8.6% | $324,522,832 | +$29,477,804 | 4,108,404 | +10% | Patrick J. Heron | 23 Jan 2026 |
| BlackRock, Inc. | 5.7% | $320,148,340 | 3,465,559 | BlackRock, Inc. | 31 Mar 2026 | |||
| EVENTIDE ASSET MANAGEMENT, LLC | 4.1% | -27% | $165,372,042 | -$40,549,990 | 2,093,582 | -20% | Eventide Asset Management, LLC | 31 Dec 2025 |
| BIOTECHNOLOGY VALUE FUND L P | 3% | $109,619,710 | 1,495,290 | BVF PARTNERS L P/IL | 30 Sep 2025 |
As of 31 Mar 2026, 307 institutional investors reported holding 68,242,269 shares of Mirum Pharmaceuticals, Inc. - Common Stock (MIRM). This represents 112% of the company’s total 60,799,281 outstanding shares.
13F concentration
Top 25 institutional shareholders
Largest 13F positions for this security by reported shares and value.
Top holder share
74%
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| Frazier Life Sciences Management, L.P. | 13% | 7,679,684 | +13% | 18% | $709,449,208 |
| JANUS HENDERSON GROUP PLC | 11% | 6,945,813 | +15% | 0.31% | $641,764,403 |
| BlackRock, Inc. | 6.3% | 3,846,530 | +5.5% | 0.01% | $355,342,442 |
| VANGUARD CAPITAL MANAGEMENT LLC | 4% | 2,414,776 | 0% | 0.01% | $223,077,007 |
| FMR LLC | 3.2% | 1,965,375 | +204% | 0.01% | $181,561,365 |
| STATE STREET CORP | 3.2% | 1,944,281 | -9.3% | 0.01% | $179,612,679 |
| PRICE T ROWE ASSOCIATES INC /MD/ | 2.8% | 1,717,421 | +21% | 0.02% | $158,656,000 |
| BVF INC/IL | 2.6% | 1,584,727 | +6% | 4.7% | $146,397,080 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 2.4% | 1,432,083 | 0% | 0.01% | $132,295,828 |
| EVENTIDE ASSET MANAGEMENT, LLC | 2.3% | 1,408,871 | -33% | 2.2% | $130,113,298 |
| WELLINGTON MANAGEMENT GROUP LLP | 2.2% | 1,334,809 | +7.8% | 0.02% | $123,309,658 |
| NOVO HOLDINGS A/S | 2.2% | 1,325,000 | +4.8% | 9.9% | $122,403,500 |
| GEODE CAPITAL MANAGEMENT, LLC | 2.1% | 1,260,003 | +19% | 0.01% | $116,422,663 |
| TANG CAPITAL MANAGEMENT LLC | 2% | 1,236,027 | 0% | 5.8% | $114,184,174 |
| TCG Crossover Management, LLC | 1.7% | 1,062,049 | +1612% | 2.8% | $98,112,087 |
| CITADEL ADVISORS LLC | 1.7% | 1,052,048 | +25% | 0.07% | $97,188,194 |
| BNP PARIBAS FINANCIAL MARKETS | 1.5% | 911,419 | 0% | 0.06% | $84,196,887 |
| Rock Springs Capital Management LP | 1.3% | 811,294 | +6.4% | 4.4% | $74,947,340 |
| TWO SIGMA INVESTMENTS, LP | 1.3% | 774,841 | +99% | 0.06% | $71,579,812 |
| Capital World Investors | 1.2% | 724,415 | 0.01% | $66,921,458 | |
| BANK OF AMERICA CORP /DE/ | 1.2% | 722,177 | +1.2% | 0% | $66,714,711 |
| FRANKLIN RESOURCES INC | 1.2% | 714,804 | +9.8% | 0.02% | $66,033,609 |
| Clearbridge Investments, LLC | 1.1% | 671,870 | -22% | 0.05% | $62,067,323 |
| GOLDMAN SACHS GROUP INC | 1.1% | 662,306 | -8.6% | 0.01% | $61,183,828 |
| Paradigm Biocapital Advisors LP | 1% | 625,000 | 1.2% | $57,737,500 |
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
27
Latest
Q1 2026
Rows shown
1-25 of 27
| Period | 13F Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q1 | 68,242,269 | $6,293,538,376 | +$498,743,309 | $92.38 | 307 |
| 2025 Q4 | 61,029,947 | $4,820,614,891 | +$288,257,634 | $78.99 | 279 |
| 2025 Q3 | 57,251,922 | $4,197,137,135 | +$132,883,151 | $73.31 | 268 |
| 2025 Q2 | 55,393,029 | $2,819,019,204 | +$70,434,976 | $50.89 | 211 |
| 2025 Q1 | 54,142,705 | $2,443,759,313 | +$49,081,267 | $45.05 | 213 |
| 2024 Q4 | 52,986,109 | $2,190,964,431 | -$26,045,809 | $41.35 | 204 |
| 2024 Q3 | 53,301,609 | $2,079,251,226 | -$2,890,149 | $39.00 | 176 |
| 2024 Q2 | 53,362,791 | $1,824,471,702 | +$17,964,526 | $34.19 | 157 |
| 2024 Q1 | 53,243,448 | $1,337,601,222 | +$70,337,692 | $25.12 | 167 |
| 2023 Q4 | 50,259,606 | $1,483,847,413 | +$1,676,068 | $29.52 | 184 |
| 2023 Q3 | 48,930,333 | $1,545,592,030 | +$398,674,334 | $31.60 | 156 |
| 2023 Q2 | 36,937,639 | $955,518,729 | +$63,103,719 | $25.87 | 143 |
| 2023 Q1 | 34,669,406 | $832,753,531 | +$33,992,984 | $24.02 | 114 |
| 2022 Q4 | 33,331,988 | $650,146,380 | -$12,725,497 | $19.50 | 101 |
| 2022 Q3 | 33,748,714 | $709,089,633 | +$93,197,315 | $21.01 | 107 |
| 2022 Q2 | 29,289,263 | $568,434,366 | +$47,575,699 | $19.46 | 104 |
| 2022 Q1 | 26,813,353 | $590,437,915 | -$6,195,298 | $22.02 | 99 |
| 2021 Q4 | 22,891,220 | $365,087,000 | +$18,990,411 | $15.95 | 81 |
| 2021 Q3 | 21,414,209 | $426,514,254 | +$2,080,056 | $19.92 | 69 |
| 2021 Q2 | 21,482,092 | $371,413,185 | +$642,669 | $17.29 | 66 |
| 2021 Q1 | 21,451,984 | $425,174,000 | -$8,433,468 | $19.82 | 60 |
| 2020 Q4 | 22,010,623 | $384,380,000 | +$52,268,047 | $17.46 | 71 |
| 2020 Q3 | 18,743,135 | $361,180,000 | -$1,290,295 | $19.27 | 50 |
| 2020 Q2 | 18,808,446 | $366,015,000 | +$8,936,163 | $19.46 | 57 |
| 2020 Q1 | 18,603,225 | $260,445,000 | +$32,083,278 | $14.00 | 43 |