| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| JANUS HENDERSON GROUP PLC | 11% | +6% | $388,340,181 | +$31,912,348 | 5,445,039 | +9% | JANUS HENDERSON GROUP PLC | 28 Nov 2025 |
| Frazier Life Sciences IX, L.P. | 7.4% | 0% | $273,828,978 | 3,735,220 | 0% | James N. Topper | 01 Nov 2025 | |
| EVENTIDE ASSET MANAGEMENT, LLC | 5.4% | $103,182,606 | 2,606,938 | Eventide Asset Management, LLC | 31 Dec 2024 | |||
| BIOTECHNOLOGY VALUE FUND L P | 3% | $109,619,710 | 1,495,290 | BVF PARTNERS L P/IL | 30 Sep 2025 |
As of 30 Sep 2025, 267 institutional investors reported holding 57,250,652 shares of Mirum Pharmaceuticals, Inc. - Common Stock (MIRM). This represents 111% of the company’s total 51,368,292 outstanding shares.
The largest institutional shareholders of Mirum Pharmaceuticals, Inc. - Common Stock (MIRM) together control 75% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| Frazier Life Sciences Management, L.P. | 13% | 6,795,121 | 0% | 15% | $498,150,321 |
| JANUS HENDERSON GROUP PLC | 9.7% | 4,997,586 | -4.6% | 0.17% | $366,518,621 |
| BlackRock, Inc. | 7% | 3,602,434 | +0.71% | 0% | $264,094,437 |
| VANGUARD GROUP INC | 5% | 2,545,369 | -0.76% | 0% | $186,601,001 |
| EVENTIDE ASSET MANAGEMENT, LLC | 4.9% | 2,522,563 | -4.4% | 3% | $184,923,401 |
| BVF INC/IL | 2.9% | 1,495,290 | -46% | 4.4% | $109,619,710 |
| STATE STREET CORP | 2.6% | 1,346,904 | -2.1% | 0% | $98,741,532 |
| PRICE T ROWE ASSOCIATES INC /MD/ | 2.5% | 1,283,288 | -9.5% | 0.01% | $94,079,000 |
| NOVO HOLDINGS A/S | 2.5% | 1,264,028 | -16% | 6% | $92,665,893 |
| TANG CAPITAL MANAGEMENT LLC | 2.4% | 1,236,027 | 0% | 3.5% | $90,613,139 |
| CITADEL ADVISORS LLC | 2% | 1,040,544 | -26% | 0.06% | $76,282,281 |
| GEODE CAPITAL MANAGEMENT, LLC | 2% | 1,010,022 | -1.9% | 0% | $74,056,868 |
| Clearbridge Investments, LLC | 2% | 1,003,803 | -2.3% | 0.06% | $73,588,785 |
| D. E. Shaw & Co., Inc. | 1.8% | 923,509 | +66% | 0.05% | $67,702,445 |
| Polar Capital Holdings Plc | 1.6% | 820,552 | -16% | 0.29% | $60,154,667 |
| WELLINGTON MANAGEMENT GROUP LLP | 1.5% | 790,689 | +567% | 0.01% | $57,965,410 |
| Point72 Asset Management, L.P. | 1.5% | 790,675 | +205% | 0.13% | $57,964,420 |
| Rock Springs Capital Management LP | 1.5% | 761,126 | -7% | 3.3% | $55,798,147 |
| MORGAN STANLEY | 1.3% | 670,149 | +18% | 0% | $49,128,631 |
| LORD, ABBETT & CO. LLC | 1.3% | 661,940 | -14% | 0.14% | $48,527,000 |
| FMR LLC | 1.2% | 640,218 | +977% | 0% | $46,934,414 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 1.2% | 612,318 | +709% | 0.03% | $44,889,033 |
| Nuveen, LLC | 1.2% | 601,670 | +1.9% | 0.01% | $44,108,428 |
| FRANKLIN RESOURCES INC | 1.2% | 601,137 | +1.3% | 0.01% | $44,069,353 |
| BNP PARIBAS FINANCIAL MARKETS | 1.2% | 601,073 | 0% | 0.03% | $44,064,662 |
| Period | Reported Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2025 Q4 | 36,026 | $2,823,194 | +$1,603,069 | $78.99 | 11 |
| 2025 Q3 | 57,250,652 | $4,197,044,283 | +$132,883,007 | $73.31 | 267 |
| 2025 Q2 | 55,393,376 | $2,819,026,675 | +$70,442,433 | $50.89 | 212 |
| 2025 Q1 | 54,142,705 | $2,443,758,825 | +$49,081,183 | $45.05 | 213 |
| 2024 Q4 | 53,012,279 | $2,191,982,974 | -$15,285,717 | $41.35 | 204 |
| 2024 Q3 | 53,053,452 | $2,069,573,414 | -$12,694,355 | $39.00 | 178 |
| 2024 Q2 | 53,366,025 | $1,824,581,927 | +$11,904,127 | $34.19 | 160 |
| 2024 Q1 | 53,243,448 | $1,337,601,646 | +$67,547,049 | $25.12 | 169 |
| 2023 Q4 | 253,382 | $7,493,037 | -$2,048,222 | $29.52 | 3 |
| 2023 Q3 | 48,705,333 | $1,538,482,736 | +$386,533,948 | $31.60 | 157 |
| 2023 Q2 | 36,937,639 | $955,518,380 | +$63,103,380 | $25.87 | 143 |
| 2023 Q1 | 34,669,406 | $832,753,937 | +$33,993,013 | $24.02 | 114 |
| 2022 Q4 | 33,331,988 | $650,146,662 | -$11,846,583 | $19.50 | 101 |
| 2022 Q3 | 31,984,470 | $672,023,633 | +$84,150,814 | $21.01 | 105 |
| 2022 Q2 | 29,128,665 | $565,309,366 | +$45,714,634 | $19.46 | 100 |
| 2022 Q1 | 26,800,065 | $590,144,915 | +$50,846,120 | $22.02 | 98 |
| 2021 Q4 | 24,771,073 | $395,072,000 | +$18,686,633 | $15.95 | 80 |
| 2021 Q3 | 21,403,967 | $426,314,254 | +$2,760,942 | $19.92 | 69 |
| 2021 Q2 | 21,481,792 | $371,408,185 | +$679,329 | $17.29 | 65 |
| 2021 Q1 | 23,373,102 | $425,212,077 | -$8,433,489 | $19.82 | 61 |
| 2020 Q4 | 22,010,623 | $384,380,000 | +$52,268,028 | $17.46 | 71 |
| 2020 Q3 | 18,743,135 | $361,180,000 | -$1,291,555 | $19.27 | 50 |
| 2020 Q2 | 18,802,014 | $365,890,000 | +$8,882,637 | $19.46 | 56 |
| 2020 Q1 | 18,603,225 | $260,445,000 | +$32,083,306 | $14.00 | 43 |
| 2019 Q4 | 16,248,910 | $398,421,000 | +$12,821,717 | $24.52 | 39 |
| 2019 Q3 | 16,482,479 | $165,808,000 | +$165,706,985 | $10.06 | 37 |