Mirum PharmaceuticalsMIRM
13F holders, Q1 2026 (March 31)311holders +28
60new positions
33sold out
8famous investors
$92.22avg. 13F price*
At the end of Q1 2026, 311 institutions reported holding Mirum Pharmaceuticals Inc. (MIRM) in their 13F filings, up 28 from Q4 2025. 60 opened new positions and 33 sold out. The largest holders were Frazier Life Sciences Management, L.P. ($709.4M), Janus Henderson Group PLC ($641.8M) and BlackRock, Inc. ($355.3M). 8 famous investors held it, including Jim Simons / Peter Brown (0.1% of Renaissance Technologies's portfolio), Ken Griffin (0.1% of Citadel Advisors's portfolio) and Steve Cohen (0.1% of Point72 Asset Management's portfolio).
- Company
- Mirum Pharmaceuticals Inc.
- CUSIP
- 604749101
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2025 → Q1 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 60 | $308.7M |
| Exits | 33 | $60.6M |
All 13F filers, Q4 2025 → Q1 2026: 11,842,388 shares bought and 5,767,998 shares sold, net +6,074,390 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 311 holders
| Frazier Life Sciences Management, L.P. | 18.30% | Add +13.0% | 7,679,684 | $709.4M |
| Janus Henderson Group PLC | 0.31% | Add +14.5% | 6,945,813 | $641.8M |
| BlackRock, Inc. | 0.01% | Add +5.5% | 3,846,530 | $355.3M |
| Vanguard Capital Management LLC | 0.01% | — | 2,414,776 | $223.1M |
| FMR LLC | 0.01% | Add +204.0% | 1,965,375 | $181.6M |
| State Street Corp. | 0.01% | Reduce -9.3% | 1,944,281 | $179.6M |
| T. Rowe Price Associates Inc. | 0.02% | Add +20.9% | 1,717,421 | $158.7M |
| BVF Inc. | 4.66% | Add +6.0% | 1,584,727 | $146.4M |
| Vanguard Portfolio Management LLC | 0.01% | — | 1,432,083 | $132.3M |
| Eventide Asset Management, LLC | 2.15% | Reduce -32.7% | 1,408,871 | $130.1M |
| Wellington Management Group LLP | 0.02% | Add +7.8% | 1,334,809 | $123.3M |
| Novo Holdings A/S | 9.92% | Add +4.8% | 1,325,000 | $122.4M |
| Geode Capital Management, LLC | 0.01% | Add +18.5% | 1,260,003 | $116.4M |
| Tang Capital Management LLC | 5.80% | No change | 1,236,027 | $114.2M |
| TCG Crossover Management, LLC | 2.81% | Add +1611.6% | 1,062,049 | $98.1M |
| Citadel Advisors | 0.07% | Add +25.2% | 1,052,048 | $97.2M |
| BNP Paribas Financial Markets | 0.06% | Add +39.0% | 911,419 | $84.2M |
| Rock Springs Capital Management LP | 4.42% | Add +6.4% | 811,294 | $74.9M |
| Two Sigma Investments, LP | 0.06% | Add +99.4% | 774,841 | $71.6M |
| Capital World Investors | 0.01% | New | 724,415 | $66.9M |
| Bank of America Corp. | 0.00% | Add +1.2% | 722,177 | $66.7M |
| Franklin Resources Inc. | 0.02% | Add +9.8% | 714,804 | $66.0M |
| Clearbridge Investments, LLC | 0.05% | Reduce -22.4% | 671,870 | $62.1M |
| Goldman Sachs Group Inc. | 0.01% | Reduce -8.6% | 662,306 | $61.2M |
| Paradigm Biocapital Advisors LP | 1.18% | New | 625,000 | $57.7M |
| Lord, Abbett & Co. LLC | 0.20% | Add +6.4% | 617,064 | $57.0M |
| Bank of New York Mellon Corp | 0.01% | Add +3.4% | 584,523 | $54.0M |
| Renaissance Technologies | 0.08% | Add +32.6% | 582,085 | $53.8M |
| Woodline Partners LP | 0.20% | No change | 567,894 | $52.5M |
| Balyasny Asset Management L.P. | 0.10% | Add +88.6% | 539,031 | $49.8M |
| Morgan Stanley | 0.00% | Add +23.2% | 524,566 | $48.5M |
| Federated Hermes, Inc. | 0.08% | Add +5.0% | 506,211 | $46.8M |
| UBS Group AG | 0.01% | Add +54.3% | 494,994 | $45.7M |
| Connor, Clark & Lunn Investment Management Ltd. | 0.10% | Reduce -8.1% | 479,476 | $44.3M |
| Loomis Sayles & Co. L P | 0.06% | Reduce -7.7% | 475,324 | $43.9M |
| Nuveen, LLC | 0.01% | Reduce -5.7% | 474,227 | $43.8M |
| Candriam S.C.A. | 0.22% | Reduce -18.5% | 464,216 | $42.9M |
| Baker Bros. Advisors LP | 0.24% | New | 445,975 | $41.2M |
| Charles Schwab Investment Management Inc. | 0.01% | Add +4.3% | 427,090 | $39.5M |
| Pictet Asset Management Holding SA | 0.04% | Reduce -26.6% | 423,511 | $39.1M |
| Boone Capital Management LLC | 11.92% | No change | 421,236 | $38.9M |
| Nomura Asset Management International Inc. | 0.06% | Reduce -3.9% | 405,321 | $37.4M |
| First Turn Management, LLC | 4.13% | Reduce -16.8% | 400,464 | $37.0M |
| Soleus Capital Management, L.P. | 1.50% | Reduce -30.2% | 400,306 | $37.0M |
| Emerald Advisers, LLC | 1.16% | Add +8.2% | 397,263 | $36.7M |
| Northern Trust Corp. | 0.00% | Add +5.3% | 394,920 | $36.5M |
| Next Century Growth Investors LLC | 2.58% | Add +4.8% | 385,539 | $35.6M |
| TimesSquare Capital Management, LLC | 0.59% | Reduce -4.9% | 376,473 | $34.8M |
| Adage Capital Partners Gp, L.L.C. | 0.05% | Reduce -19.8% | 375,000 | $34.6M |
| Millennium Management | 0.03% | Add +50.9% | 368,575 | $34.0M |
| Point72 Asset Management | 0.06% | Add +82.0% | 346,991 | $32.1M |
| Octagon Capital Advisors LP | 3.46% | New | 338,900 | $31.3M |
| William Blair Investment Management, LLC | 0.10% | Reduce -0.3% | 335,669 | $31.0M |
| Vanguard Fiduciary Trust Co. | 0.01% | — | 333,327 | $30.8M |
| Trails Edge Capital Partners, LP | 7.25% | Add +946.1% | 333,312 | $30.8M |
| Palo Alto Investors LP | 4.59% | Add +107.9% | 325,175 | $30.0M |
| Ra Capital Management, L.P. | 0.31% | New | 318,554 | $29.4M |
| Massachusetts Financial Services Co. | 0.01% | New | 286,406 | $26.5M |
| Hood River Capital Management LLC | 0.26% | Add +1.9% | 285,384 | $26.4M |
| Invesco Ltd. | 0.00% | Add +339.2% | 285,236 | $26.4M |
| Polar Capital Holdings Plc | 0.11% | Reduce -64.3% | 283,484 | $26.2M |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 0.03% | Add +3.3% | 265,631 | $24.5M |
| Penn Capital Management Company, LLC | 1.84% | Reduce -8.9% | 256,767 | $23.8M |
| Emerald Mutual Fund Advisers Trust | 1.12% | Add +3.3% | 250,399 | $23.1M |
| Nan Fung Trinity (hk) Ltd. | 2.36% | Add +2.3% | 232,679 | $21.5M |
| Patient Square Capital LP | 3.77% | Reduce -23.0% | 230,000 | $21.2M |
| Raymond James Financial Inc. | 0.01% | Reduce -7.4% | 228,174 | $21.1M |
| Ameriprise Financial Inc. | 0.00% | Reduce -19.2% | 219,255 | $20.3M |
| Ensign Peak Advisors, Inc | 0.03% | Add +51.1% | 202,473 | $18.7M |
| New York State Common Retirement Fund | 0.03% | Reduce -7.6% | 201,145 | $18.6M |
| Logos Global Management LP | 0.95% | Reduce -11.1% | 200,000 | $18.5M |
| Erste Asset Management GmbH | 0.17% | Reduce -16.0% | 210,000 | $18.5M |
| Russell Investments Group, Ltd. | 0.02% | Reduce -5.8% | 197,093 | $18.2M |
| Handelsbanken Fonder AB | 0.06% | Reduce -9.1% | 194,000 | $17.9M |
| Segall Bryant & Hamill, LLC | 0.23% | Reduce -4.9% | 175,898 | $16.2M |
| D. E. Shaw & Co. | 0.01% | Reduce -82.3% | 167,489 | $15.5M |
| Legal & General Group Plc | 0.00% | Reduce -8.6% | 153,870 | $14.2M |
| Citigroup Inc. | 0.01% | Add +5.1% | 153,470 | $14.2M |
| First Trust Advisors LP | 0.01% | Add +9.9% | 151,272 | $14.0M |
| Voleon Capital Management LP | 0.30% | Reduce -13.0% | 150,513 | $13.9M |
| Rice Hall James & Associates, LLC | 0.76% | Reduce -10.6% | 147,037 | $13.6M |
| PDT Partners, LLC | 0.79% | No change | 145,379 | $13.4M |
| Nicholas Investment Partners, LP | 0.99% | Reduce -38.5% | 131,303 | $12.1M |
| Panagora Asset Management Inc. | 0.04% | New | 129,114 | $11.9M |
| Highlander Partners, L.P. | 4.45% | No change | 122,980 | $11.4M |
| Essex Investment Management Co. LLC | 1.58% | Reduce -2.7% | 108,338 | $10.0M |
| Voloridge Investment Management, LLC | 0.04% | Reduce -65.1% | 104,099 | $9.6M |
| Atle Fund Management AB | 3.03% | Add +118.3% | 195,768 | $9.4M |
| Victory Capital Management Inc. | 0.01% | Add +32.4% | 95,555 | $8.8M |
| Hennion & Walsh Asset Management, Inc. | 0.29% | Reduce -4.8% | 93,592 | $8.6M |
| Fisher Asset Management | 0.00% | Add +560.9% | 93,109 | $8.6M |
| Rhenman & Partners Asset Management AB | 1.06% | Reduce -12.8% | 92,605 | $8.6M |
| ExodusPoint Capital Management, LP | 0.08% | New | 87,373 | $8.1M |
| JPMorgan Chase & Co. | 0.00% | Reduce -6.9% | 90,664 | $8.0M |
| Sei Investments Co. | 0.01% | Add +76.0% | 81,109 | $7.5M |
| Silvercrest Asset Management Group LLC | 0.05% | Reduce -10.1% | 80,991 | $7.5M |
| Neuberger Berman Group LLC | 0.01% | New | 80,549 | $7.4M |
| Swiss National Bank | 0.00% | No change | 74,300 | $6.9M |
| Picton Mahoney Asset Management | 0.07% | Add +5119.6% | 74,118 | $6.8M |
| Voya Investment Management LLC | 0.01% | Add +1.6% | 68,815 | $6.4M |
"% of holder's portfolio" is MIRM's weight in each manager's 13F, not the share of Mirum Pharmaceuticals Inc. the manager owns.