MIRM Institutional Ownership & Shareholders
MIRUM PHARMACEUTICALS INC (MIRM) is currently held by 318 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $8.14B based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
Frazier Life Sciences Management, L.P. is currently the largest disclosed institutional shareholder of MIRM tracked by InsiderSet, reporting ownership valued at approximately $899.06M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $625.36M, representing an estimated loss of -30.44% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 48% of the total disclosed MIRM value among the investors covered in this analysis. Major shareholders include Frazier Life Sciences Management, L.P., Janus Henderson Group Plc, Blackrock, Inc., and several other long-term asset managers with concentrated positions in MIRUM PHARMACEUTICALS INC (MIRM).
This page ranks the largest institutional MIRM shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
318
Total Reported Value
$8.14B
Largest Holder
Frazier Life Sciences Management, L.P.
Largest Position
$899.06M
Insider Transactions (90d)
15
Latest Filing Quarter
Q2 2026
New Institutional Positions
51
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Frazier Life Sciences Management, L.P. | 19.58% | 7,679,684 | $899,060,606 | $625,356,668 | -$273,703,938 | -30.44% | |
| Janus Henderson Group Plc | 0.31% | 6,789,239 | $627,298,611 | $552,847,732 | -$74,450,879 | -11.87% | |
| Blackrock, Inc. | 0.01% | 4,390,063 | $513,944,677 | $357,482,830 | -$156,461,847 | -30.44% | |
| Fmr Llc | 0.02% | 3,670,314 | $429,683,688 | $298,873,669 | -$130,810,019 | -30.44% | |
| Price T Rowe Associates Inc | 0.03% | 2,655,607 | $310,893,000 | $216,246,078 | -$94,646,922 | -30.44% | |
| Vanguard Portfolio Management Llc | 0.01% | 2,377,019 | $278,277,614 | $193,560,657 | -$84,716,957 | -30.44% | |
| Vanguard Capital Management Llc | 0.01% | 2,254,109 | $263,888,541 | $183,552,096 | -$80,336,445 | -30.44% | |
| State Street Corp | 0.01% | 2,170,689 | $254,122,561 | $176,759,205 | -$77,363,356 | -30.44% | |
| William Blair Investment Management, Llc | 0.49% | 1,404,741 | $164,453,029 | $114,388,060 | -$50,064,969 | -30.44% | |
| Geode Capital Management, Llc | 0.01% | 1,393,908 | $163,213,962 | $113,505,928 | -$49,708,034 | -30.46% | |
| Invesco Ltd. | 0.01% | 1,364,084 | $159,693,314 | $111,077,360 | -$48,615,954 | -30.44% | |
| Wellington Management Group Llp | 0.03% | 1,309,987 | $153,360,177 | $106,672,241 | -$46,687,936 | -30.44% | |
| Eventide Asset Management, Llc | 1.95% | 1,248,389 | $146,202,247 | $101,656,316 | -$44,545,931 | -30.47% | |
| Tang Capital Management Llc | 6.57% | 1,236,027 | $144,701,681 | $100,649,679 | -$44,052,002 | -30.44% | |
| Capital World Investors | 0.02% | 1,153,480 | $135,037,904 | $93,927,876 | -$41,110,028 | -30.44% | |
| Novo Holdings A/S | 7.65% | 1,125,000 | $131,703,750 | $91,608,750 | -$40,095,000 | -30.44% | |
| Tcg Crossover Management, Llc | 2.99% | 1,062,049 | $124,334,076 | $86,482,650 | -$37,851,426 | -30.44% | |
| Bvf Inc/Il | 3.16% | 1,056,027 | $123,629,081 | $85,992,279 | -$37,636,802 | -30.44% | |
| Polar Capital Holdings Plc | 0.28% | 845,524 | $98,985,495 | $68,851,019 | -$30,134,476 | -30.44% | |
| Rock Springs Capital Management Lp | 4.56% | 798,145 | $93,438,835 | $64,992,947 | -$28,445,888 | -30.44% | |
| Nomura Asset Management International Inc. | 0.13% | 752,044 | $88,042,000 | $61,238,943 | -$26,803,057 | -30.44% | |
| Ameriprise Financial Inc | 0.02% | 726,694 | $85,074,348 | $59,174,692 | -$25,899,656 | -30.44% | |
| Two Sigma Investments, Lp | 0.06% | 690,318 | $80,815,528 | $56,212,595 | -$24,602,933 | -30.44% | |
| Bank Of New York Mellon Corp | 0.01% | 669,974 | $78,433,863 | $54,555,983 | -$23,877,880 | -30.44% | |
| Clearbridge Investments, Llc | 0.06% | 639,734 | $74,893,623 | $52,093,540 | -$22,800,083 | -30.44% | |
| Bnp Paribas Financial Markets | 0.04% | 606,427 | $70,994,409 | $49,381,351 | -$21,613,058 | -30.44% | |
| Woodline Partners Lp | 0.21% | 567,894 | $66,483,351 | $46,243,608 | -$20,239,743 | -30.44% | |
| Bank Of America Corp | 0.00% | 561,724 | $65,761,029 | $45,741,185 | -$20,019,844 | -30.44% | |
| Goldman Sachs Group Inc | 0.01% | 549,874 | $64,373,750 | $44,776,240 | -$19,597,510 | -30.44% | |
| Lord, Abbett & Co. Llc | 0.18% | 540,977 | $63,332,000 | $44,051,757 | -$19,280,243 | -30.44% | |
| Pictet Asset Management Holding Sa | 0.06% | 526,443 | $61,630,682 | $42,868,253 | -$18,762,429 | -30.44% | |
| Balyasny Asset Management L.P. | 0.10% | 489,170 | $57,267,132 | $39,833,113 | -$17,434,019 | -30.44% | |
| Emerald Advisers, Llc | 1.29% | 468,295 | $54,823,296 | $38,133,262 | -$16,690,034 | -30.44% | |
| Northern Trust Corp | 0.01% | 452,036 | $52,919,855 | $36,809,291 | -$16,110,564 | -30.44% | |
| Charles Schwab Investment Management Inc | 0.01% | 449,429 | $52,614,653 | $36,597,003 | -$16,017,650 | -30.44% | |
| Baker Bros. Advisors Lp | 0.26% | 445,975 | $52,210,293 | $36,315,744 | -$15,894,549 | -30.44% | |
| Loomis Sayles & Co L P | 0.07% | 443,636 | $51,936,466 | $36,125,279 | -$15,811,187 | -30.44% | |
| Renaissance Technologies LLC | Jim Simons | 0.07% | 442,185 | $51,766,598 | $36,007,125 | -$15,759,473 | -30.44% |
| Federated Hermes, Inc. | 0.07% | 436,635 | $51,116,860 | $35,555,188 | -$15,561,672 | -30.44% | |
| Next Century Growth Investors Llc | 2.61% | 420,213 | $49,194,335 | $34,217,945 | -$14,976,390 | -30.44% | |
| Connor, Clark & Lunn Investment Management Ltd. | 0.09% | 420,063 | $49,176,775 | $34,205,730 | -$14,971,045 | -30.44% | |
| Boone Capital Management Llc | 11.38% | 415,641 | $48,659,092 | $33,845,647 | -$14,813,445 | -30.44% | |
| Massachusetts Financial Services Co | 0.01% | 384,570 | $45,021,610 | $31,315,535 | -$13,706,075 | -30.44% | |
| Ubs Group Ag | 0.01% | 379,760 | $44,458,503 | $30,923,857 | -$13,534,646 | -30.44% | |
| Candriam S.C.A. | 0.20% | 376,143 | $43,992,694 | $30,629,324 | -$13,363,370 | -30.38% | |
| Timessquare Capital Management, Llc | 0.63% | 367,281 | $42,997,587 | $29,907,692 | -$13,089,895 | -30.44% | |
| Morgan Stanley | 0.00% | 351,404 | $41,138,902 | $28,614,828 | -$12,524,074 | -30.44% | |
| Adage Capital Partners Gp, L.L.C. | 0.06% | 350,000 | $40,974,500 | $28,500,500 | -$12,474,000 | -30.44% | |
| Palo Alto Investors Lp | 5.64% | 348,808 | $40,834,953 | $28,403,435 | -$12,431,518 | -30.44% | |
| Vanguard Fiduciary Trust Co | 0.01% | 348,230 | $40,767,286 | $28,356,369 | -$12,410,917 | -30.44% |
Frequently asked questions about MIRM
Who are the largest institutional holders of MIRM?
The largest institutional holders of MIRM reported in the latest SEC Form 13F filings include Frazier Life Sciences Management, L.P., Janus Henderson Group Plc, Blackrock, Inc., Fmr Llc, and Price T Rowe Associates Inc. InsiderSet ranks institutional holders by their latest reported MIRM position.
What is MIRM institutional ownership?
This page tracks MIRM positions reported by institutional investment managers through SEC Form 13F. MIRUM PHARMACEUTICALS INC (MIRM) institutional ownership on InsiderSet reflects disclosed 13F holdings among the managers we analyze, not every shareholder of the stock.
How many institutions own MIRM?
InsiderSet currently tracks 318 institutional managers reporting MIRM holdings in the latest available 13F data. This count reflects institutions included in the SEC Form 13F filings analyzed by InsiderSet and should not be interpreted as the total number of MIRM shareholders.
How much MIRM stock do institutions own?
Institutional investment managers disclosed approximately $8.14B in MIRM holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value.
When was MIRM institutional ownership last updated?
The latest MIRM institutional ownership data on InsiderSet is based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time institutional holdings.
Are institutional MIRM holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by institutional investment managers as of the end of the reporting quarter. An institution may have changed its MIRM position after the reporting date.
Are institutions buying or selling MIRM?
Institutional buying and selling can be analyzed by comparing MIRM positions across consecutive 13F reporting periods. InsiderSet's MIRM Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View MIRM ownership changes.
How has MIRM institutional ownership changed over time?
InsiderSet tracks MIRM institutional holdings across multiple 13F reporting periods, allowing investors to compare institutional holder counts, reported value, and reported shares over time.