Mirum Pharmaceuticals, Inc. (MIRM) — Institutional Holders, Q2 2026
339 institutional investment managers reported a MIRM position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $8.6B. Every filer is listed below, ranked by position value, 100 per page; this page shows ranks 1 to 100. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.
MIRM in Q2 2026: what funds did
Funds that filed a 13F for both Q1 2026 and Q2 2026, by what they did with the common stock. Share counts are adjusted for any split between the two quarters; dollar figures are the change in shares at this quarter’s price.
Biggest buyers
- WILLIAM BLAIR INVESTMENT MANAGEMENTAdded · +1,069,072 sh+$125.2M
- VANGUARD PORTFOLIO MANAGEMENTAdded · +944,936 sh+$110.6M
- PRICE T ROWE ASSOCIATESAdded · +938,186 sh+$109.8M
- Polar Capital PlcAdded · +562,040 sh+$65.8M
- AMERIPRISE FINANCIALAdded · +507,439 sh+$59.4M
Biggest sellers
- BlackRockTrimmed · -4,606,467 sh-$539.3M
- CITADEL ADVISORSSold out · -1,052,048 sh-$123.2M
- Paradigm Biocapital AdvisorsSold out · -625,000 sh-$73.2M
- BVFTrimmed · -528,700 sh-$61.9M
- Soleus Capital Management, L.P.Trimmed · -325,306 sh-$38.1M
MIRM 13F holders ranked 1–100 of 339
| # | Institution | Shares | Value | % of portfolio | QoQShares vs Q1 2026 |
|---|---|---|---|---|---|
| 1 | Frazier Life Sciences Management, L.P.#1 · 7,679,684 sh | 7,679,684 | $899.1M | 19.58% | 0.0% |
| 2 | Jupiter Topco#2 · 5,909,184 sh | 5,909,184 | $691.7M | 0.28% | — |
| 3 | BlackRock#3 · 4,390,063 sh | 4,390,063 | $513.9M | <0.01% | -51.2% |
| 4 | FMR#4 · 7,083,314 sh | 7,083,314 | $442.3M | 0.02% | -16.9% |
| 5 | PRICE T ROWE ASSOCIATES#5 · 2,655,607 sh | 2,655,607 | $310.9M | 0.03% | +54.6% |
| 6 | VANGUARD PORTFOLIO MANAGEMENT#6 · 2,377,019 sh | 2,377,019 | $278.3M | 0.01% | +66.0% |
| 7 | VANGUARD CAPITAL MANAGEMENT#7 · 2,254,109 sh | 2,254,109 | $263.9M | <0.01% | -6.7% |
| 8 | STATE STREET#8 · 2,170,689 sh | 2,170,689 | $254.1M | <0.01% | +11.6% |
| 9 | WILLIAM BLAIR INVESTMENT MANAGEMENT#9 · 1,404,741 sh | 1,404,741 | $164.5M | 0.49% | +318.5% |
| 10 | GEODE CAPITAL MANAGEMENT#10 · 1,393,908 sh | 1,393,908 | $163.2M | <0.01% | +10.6% |
| 11 | Invesco Ltd.#11 · 1,364,084 sh | 1,364,084 | $159.7M | 0.01% | -1.5% |
| 12 | WELLINGTON MANAGEMENT GROUP LLP#12 · 1,309,987 sh | 1,309,987 | $153.4M | 0.03% | -1.9% |
| 13 | EVENTIDE ASSET MANAGEMENT#13 · 1,248,389 sh | 1,248,389 | $146.2M | 1.95% | -11.4% |
| 14 | TANG CAPITAL MANAGEMENT#14 · 1,236,027 sh | 1,236,027 | $144.7M | 6.57% | 0.0% |
| 15 | Capital World Investors#15 · 1,153,480 sh | 1,153,480 | $135.0M | 0.02% | +59.2% |
| 16 | FRANKLIN RESOURCES#16 · 1,152,770 sh | 1,152,770 | $135.0M | 0.03% | -55.5% |
| 17 | Novo A/S#17 · 1,125,000 sh | 1,125,000 | $131.7M | 7.65% | -15.1% |
| 18 | TCG Crossover Management#18 · 1,062,049 sh | 1,062,049 | $124.3M | 2.99% | 0.0% |
| 19 | BVF#19 · 1,056,027 sh | 1,056,027 | $123.6M | 3.16% | -33.4% |
| 20 | Polar Capital Plc#20 · 845,524 sh | 845,524 | $99.0M | 0.23% | +198.3% |
| 21 | Rock Springs Capital Management#21 · 798,145 sh | 798,145 | $93.4M | 4.56% | -1.6% |
| 22 | TENOR CAPITAL MANAGEMENT , L.P.#22 · 24,653,000 sh | 24,653,000 | $91.7M | 1.29% | -43.7% |
| 23 | BNP PARIBAS FINANCIAL MARKETS#23 · 5,968,427 sh | 5,968,427 | $90.8M | 0.03% | -74.3% |
| 24 | NOMURA ASSET MANAGEMENT INTERNATIONAL#24 · 752,044 sh | 752,044 | $88.0M | 0.13% | +85.5% |
| 25 | AMERIPRISE FINANCIAL#25 · 726,694 sh | 726,694 | $85.1M | 0.02% | +231.4% |
| 26 | TWO SIGMA INVESTMENTS#26 · 690,318 sh | 690,318 | $80.8M | 0.06% | -10.9% |
| 27 | Bank of New York Mellon#27 · 669,974 sh | 669,974 | $78.4M | 0.01% | +14.6% |
| 28 | Clearbridge Investments#28 · 639,734 sh | 639,734 | $74.9M | 0.06% | -4.8% |
| 29 | CAPSTONE INVESTMENT ADVISORS#29 · 18,448,000 sh | 18,448,000 | $68.3M | 0.06% | -31.7% |
| 30 | Woodline Partners#30 · 567,894 sh | 567,894 | $66.5M | 0.21% | 0.0% |
| 31 | BANK OF AMERICA#31 · 561,724 sh | 561,724 | $65.8M | <0.01% | -22.2% |
| 32 | GOLDMAN SACHS GROUP#32 · 549,874 sh | 549,874 | $64.4M | <0.01% | -17.0% |
| 33 | LORD, ABBETT#33 · 540,977 sh | 540,977 | $63.3M | 0.18% | -92.1% |
| 34 | Pictet Asset Management Holding SA#34 · 526,443 sh | 526,443 | $61.6M | 0.06% | +24.3% |
| 35 | BALYASNY ASSET MANAGEMENT L.P.#35 · 489,170 sh | 489,170 | $57.3M | 0.07% | -9.3% |
| 36 | EMERALD ADVISERS#36 · 468,295 sh | 468,295 | $54.8M | 1.29% | +17.9% |
| 37 | NORTHERN#37 · 452,036 sh | 452,036 | $52.9M | <0.01% | +14.5% |
| 38 | CHARLES SCHWAB INVESTMENT MANAGEMENT#38 · 449,429 sh | 449,429 | $52.6M | <0.01% | +5.2% |
| 39 | BAKER BROS. ADVISORS#39 · 445,975 sh | 445,975 | $52.2M | 0.26% | 0.0% |
| 40 | LOOMIS SAYLES & L P#40 · 443,636 sh | 443,636 | $51.9M | 0.07% | -6.7% |
| 41 | RENAISSANCE TECHNOLOGIES#41 · 442,185 sh | 442,185 | $51.8M | 0.07% | -24.0% |
| 42 | FEDERATED HERMES#42 · 436,635 sh | 436,635 | $51.1M | 0.07% | -13.7% |
| 43 | NEXT CENTURY GROWTH INVESTORS#43 · 420,213 sh | 420,213 | $49.2M | 2.61% | +9.0% |
| 44 | Connor, Clark & Lunn Investment Management Ltd.#44 · 420,063 sh | 420,063 | $49.2M | 0.09% | -12.4% |
| 45 | BOONE CAPITAL MANAGEMENT#45 · 415,641 sh | 415,641 | $48.7M | 11.38% | -1.3% |
| 46 | MASSACHUSETTS FINANCIAL SERVICES#46 · 384,570 sh | 384,570 | $45.0M | 0.01% | +34.3% |
| 47 | UBS Group AG#47 · 395,760 sh | 395,760 | $44.5M | <0.01% | -32.4% |
| 48 | Candriam S.C.A.#48 · 376,143 sh | 376,143 | $44.0M | 0.20% | -19.0% |
| 49 | TimesSquare Capital Management#49 · 367,281 sh | 367,281 | $43.0M | 0.63% | -2.4% |
| 50 | MORGAN STANLEY#50 · 569,404 sh | 569,404 | $41.9M | <0.01% | -21.4% |
| 51 | ADAGE CAPITAL PARTNERS GP, L.L.C.#51 · 350,000 sh | 350,000 | $41.0M | 0.06% | -6.7% |
| 52 | Palo Alto Investors#52 · 348,808 sh | 348,808 | $40.8M | 5.64% | +7.3% |
| 53 | VANGUARD FIDUCIARY#53 · 348,230 sh | 348,230 | $40.8M | <0.01% | +4.5% |
| 54 | Octagon Capital Advisors#54 · 338,900 sh | 338,900 | $39.7M | 3.57% | 0.0% |
| 55 | PANAGORA ASSET MANAGEMENT#55 · 337,461 sh | 337,461 | $39.5M | 0.12% | +161.4% |
| 56 | Nuveen#56 · 329,282 sh | 329,282 | $38.5M | <0.01% | -30.6% |
| 57 | RA CAPITAL MANAGEMENT, L.P.#57 · 318,554 sh | 318,554 | $37.3M | 0.32% | 0.0% |
| 58 | Hood River Capital Management#58 · 306,439 sh | 306,439 | $35.9M | 0.26% | +7.4% |
| 59 | Penn Capital Management Company#59 · 298,914 sh | 298,914 | $35.1M | 2.22% | +16.4% |
| 60 | EMERALD MUTUAL FUND ADVISERS#60 · 289,372 sh | 289,372 | $33.9M | 1.19% | +15.6% |
| 61 | Patient Square Capital#61 · 260,500 sh | 260,500 | $30.5M | 4.72% | +13.3% |
| 62 | NEW YORK STATE COMMON RETIREMENT FUND#62 · 250,558 sh | 250,558 | $29.3M | 0.04% | +24.6% |
| 63 | BNP Paribas Asset Management Holding S.A.#63 · 248,963 sh | 248,963 | $29.2M | 0.03% | -6.3% |
| 64 | Nicholas Investment Partners#64 · 2,122,695 sh | 2,122,695 | $27.4M | 1.54% | +2.0% |
| 65 | RAYMOND JAMES FINANCIAL#65 · 233,311 sh | 233,311 | $27.3M | <0.01% | +2.3% |
| 66 | NAN FUNG TRINITY (HK) Ltd#66 · 232,679 sh | 232,679 | $27.2M | 2.69% | 0.0% |
| 67 | Trails Edge Capital Partners#67 · 223,312 sh | 223,312 | $26.1M | 4.15% | -33.0% |
| 68 | Russell Investments Group, Ltd.#68 · 219,462 sh | 219,462 | $25.7M | 0.02% | +11.3% |
| 69 | First Turn Management#69 · 218,051 sh | 218,051 | $25.5M | 2.73% | -45.6% |
| 70 | Erste Asset Management GmbH#70 · 205,000 sh | 205,000 | $25.2M | 0.20% | -2.4% |
| 71 | Handelsbanken Fonder AB#71 · 197,179 sh | 197,179 | $23.1M | 0.07% | +1.6% |
| 72 | SEGALL BRYANT & HAMILL#72 · 178,980 sh | 178,980 | $21.0M | 0.25% | New |
| 73 | Ensign Peak Advisors#73 · 175,598 sh | 175,598 | $20.6M | 0.03% | -13.3% |
| 74 | READYSTATE ASSET MANAGEMENT#74 · 5,534,000 sh | 5,534,000 | $20.5M | 0.01% | -80.2% |
| 75 | CITIGROUP#75 · 280,136 sh | 280,136 | $19.8M | <0.01% | +4.3% |
| 76 | JPMORGAN CHASE#76 · 2,281,001 sh | 2,281,001 | $18.8M | <0.01% | +758.6% |
| 77 | Legal & General Group Plc#77 · 159,231 sh | 159,231 | $18.6M | <0.01% | +3.5% |
| 78 | Polar Asset Management Partners#78 · 4,731,000 sh | 4,731,000 | $17.6M | 0.29% | -77.9% |
| 79 | Neuberger Berman Group#79 · 139,447 sh | 139,447 | $16.3M | 0.01% | +73.1% |
| 80 | Rhenman & Partners Asset Management AB#80 · 139,205 sh | 139,205 | $16.3M | 1.54% | +50.3% |
| 81 | FIRST ADVISORS#81 · 136,141 sh | 136,141 | $15.9M | <0.01% | -10.0% |
| 82 | Highlander Partners, L.P.#82 · 122,980 sh | 122,980 | $14.4M | 4.83% | 0.0% |
| 83 | PDT Partners#83 · 122,041 sh | 122,041 | $14.3M | 0.75% | -16.1% |
| 84 | PERCEPTIVE ADVISORS#84 · 115,391 sh | 115,391 | $13.5M | 0.20% | New |
| 85 | RICE HALL JAMES & ASSOCIATES#85 · 110,673 sh | 110,673 | $13.0M | 0.63% | -24.7% |
| 86 | Seven Fleet Capital Management#86 · 110,393 sh | 110,393 | $12.9M | 2.13% | New |
| 87 | ESSEX INVESTMENT MANAGEMENT#87 · 105,669 sh | 105,669 | $12.4M | — | -2.5% |
| 88 | PRINCIPAL FINANCIAL GROUP#88 · 101,900 sh | 101,900 | $11.9M | <0.01% | +77.6% |
| 89 | Capricorn Fund Managers Ltd#89 · 101,240 sh | 101,240 | $11.9M | 0.93% | New |
| 90 | HealthInvest Partners AB#90 · 100,807 sh | 100,807 | $11.8M | 3.17% | -48.5% |
| 91 | MILLENNIUM MANAGEMENT#91 · 96,213 sh | 96,213 | $11.3M | <0.01% | -73.9% |
| 92 | PEREGRINE CAPITAL MANAGEMENT#92 · 88,820 sh | 88,820 | $10.4M | 0.34% | New |
| 93 | VOYA INVESTMENT MANAGEMENT#93 · 86,257 sh | 86,257 | $10.1M | <0.01% | +25.3% |
| 94 | Swiss National Bank#94 · 84,800 sh | 84,800 | $9.9M | <0.01% | +14.1% |
| 95 | Aequim Alternative Investments#95 · 2,656,000 sh | 2,656,000 | $9.8M | 0.15% | -77.9% |
| 96 | Voleon Capital Management#96 · 82,877 sh | 82,877 | $9.7M | 0.18% | -44.9% |
| 97 | Fisher Asset Management#97 · 82,476 sh | 82,476 | $9.7M | <0.01% | -11.4% |
| 98 | DEUTSCHE BANK AG\#98 · 81,586 sh | 81,586 | $9.6M | <0.01% | +63.0% |
| 99 | SILVERCREST ASSET MANAGEMENT GROUP#99 · 77,278 sh | 77,278 | $9.0M | 0.06% | -4.6% |
| 100 | Soleus Capital Management, L.P.#100 · 75,000 sh | 75,000 | $8.8M | 0.30% | -81.3% |
Funds that sold out of MIRM in Q2 2026 (48)
Held MIRM at the end of Q1 2026 and filed a Q2 2026 13F without it. Not in the list above, because they no longer hold it. Largest prior position first.
Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.