Mirum Pharmaceuticals Ownership | Who Owns Mirum Pharmaceuticals?
Mirum Pharmaceuticals Ownership Summary
Mirum Pharmaceuticals is owned by 14.10% institutional investors, 1.84% insiders, and 84.06% retail investors. Frazier life sciences management is the largest institutional shareholder, holding 13.66% of MIRM shares. Vanguard US Total Market Shares ETF is the top mutual fund, with 2.87% of its assets in Mirum Pharmaceuticals shares.
MIRM Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | Mirum Pharmaceuticals | 14.10% | 1.84% | 84.06% |
| Sector | Healthcare Stocks | 42.53% | 10.81% | 46.67% |
| Industry | Biotech Stocks | 45.24% | 10.75% | 44.01% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Frazier life sciences management | 6.80M | 13.66% | $498.15M |
| Janus henderson group | 4.58M | 9.59% | $189.48M |
| Blackrock funding, inc. /de | 3.60M | 7.24% | $264.09M |
| Blackrock | 3.24M | 6.90% | $110.71M |
| Vanguard group | 2.55M | 5.12% | $186.60M |
| Eventide asset management | 2.52M | 5.07% | $184.92M |
| Bvf inc/il | 1.50M | 3.01% | $109.62M |
| State street | 1.35M | 2.71% | $98.74M |
| Price t rowe associates inc /md/ | 1.28M | 2.58% | $94.08M |
| Novo | 1.26M | 2.54% | $92.67M |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| Frazier life sciences management | 6.80M | 14.93% | $498.15M |
| Boone capital management | 535.73K | 12.88% | $39.27M |
| First turn management | 570.57K | 6.28% | $41.83M |
| Novo | 1.26M | 5.97% | $92.67M |
| Bvf inc/il | 1.50M | 4.44% | $109.62M |
| Tang capital management | 1.24M | 3.49% | $90.61M |
| Rock springs capital management lp | 761.13K | 3.26% | $55.80M |
| Highlander partners | 122.98K | 3.14% | $9.02M |
| Eventide asset management | 2.52M | 3.04% | $184.92M |
| Lion point capital, lp | 45.00K | 2.80% | $1.54M |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Blackrock | 3.24M | 0.00% | 785.78K |
| Wellington management group llp | 790.69K | 0.01% | 672.12K |
| Fmr | 640.22K | 0.00% | 580.78K |
| Arrowstreet capital, limited partnership | 612.32K | 0.03% | 536.67K |
| Point72 asset management | 790.67K | 0.10% | 531.81K |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Bvf inc/il | 1.50M | 4.44% | -1.27M |
| Bioimpact capital | - | - | -589.58K |
| Cadian capital management, lp | - | - | -475.71K |
| Jpmorgan chase | 100.21K | 0.00% | -380.07K |
| Checkpoint capital | - | - | -362.19K |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| William blair investment management | 313.26K | 0.06% | 313.26K | $22.97M |
| Timessquare capital management | 300.65K | 0.32% | 300.65K | $22.04M |
| Axa investment managers | 255.69K | 0.05% | 255.69K | $18.74M |
| D. e. shaw | 157.35K | 0.00% | 157.35K | $6.51M |
| Voleon capital management lp | 86.53K | 0.15% | 86.53K | $6.34M |
Sold Out
| Holder | Change |
|---|---|
| Coldstream capital management | -1.00 |
| Ifp advisors | -3.00 |
| Nelson, van denburg & campbell wealth management group | -5.00 |
| Northwestern mutual wealth management | -9.00 |
| Stephens consulting | -10.00 |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Sep 30, 2025 | 99 | -54.59% | 7,010,413 | -87.34% | 14 | 0.11% | 58 | -48.21% | 28 | -64.10% |
| Jun 30, 2025 | 216 | 0.47% | 55,383,162 | 4.20% | 111 | 0.94% | 110 | -9.84% | 78 | 23.81% |
| Mar 31, 2025 | 215 | 4.37% | 54,155,788 | 2.17% | 110 | 0.90% | 121 | 5.22% | 65 | 6.56% |
| Dec 31, 2024 | 194 | 5.43% | 43,660,980 | -17.71% | 91 | 0.74% | 109 | -3.54% | 56 | 40.00% |
| Sep 30, 2024 | 184 | 11.52% | 53,056,700 | -0.10% | 111 | 0.87% | 114 | 25.27% | 40 | -20.00% |
Top Mutual Funds Shareholders
| Holder | Shares | % Holding | Change |
|---|---|---|---|
| Vanguard US Total Market Shares ETF | 1.41M | 2.87% | 1.77K |
| Eventide Gilead N | 1.43M | 2.85% | - |
| Vanguard Total Stock Mkt Idx Inv | 1.34M | 2.68% | -28.37K |
| Eventide Healthcare & Life Sciences I | 1.19M | 2.38% | 108.58K |
| iShares Russell 2000 ETF | 1.05M | 2.08% | - |
| Polar Capital Biotech S Inc | 975.00K | 1.95% | - |
| MEDICAL BioHealth EUR Acc | 756.50K | 1.59% | - |
| Janus Henderson Global Life Sciences | 774.99K | 1.57% | 62.59K |
| Janus Henderson Global Life Sciences D | 774.99K | 1.55% | -3.15K |
| US Small-Cap Growth II Equity Comp | 716.26K | 1.45% | -40.98K |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| Nov 21, 2025 | GREY MICHAEL G | - | Sell | $3.50M |
| Sep 11, 2025 | Brege Laura | - | Sell | $111.93K |
| Sep 11, 2025 | Brege Laura | - | Sell | $1.15M |
| Sep 12, 2025 | BJERKHOLT ERIC | CHIEF FINANCIAL OFFICER | Sell | $728.02K |
| Sep 08, 2025 | Ramasastry Saira | - | Sell | - |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2025 Q4 | - | - |
| 2025 Q3 | - | 10 |
| 2025 Q2 | - | 3 |
| 2025 Q1 | 10 | 21 |
| 2024 Q4 | - | 1 |
MIRM Ownership FAQ
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