Mirum Pharmaceuticals Inc
Ownership
Ownership Structure
Who owns Mirum Pharmaceuticals Inc (MIRM)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 86.8% of the shares are freely tradable; institutional investors hold 114.4%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Frazier Life Sciences Management, L.P. | 11.83 | 7,679,684 | +0.0 | 06/30/2026 |
| HHG PLC | 10.70 | 6,945,813 | +14.5 | 03/31/2026 |
| Jupiter Topco LLC | 9.10 | 5,909,184 | +0.0 | 06/30/2026 |
| BlackRock Inc | 6.76 | 4,390,063 | +14.1 | 06/30/2026 |
| FMR Inc | 5.65 | 3,670,314 | +86.7 | 06/30/2026 |
| T. Rowe Price Associates, Inc. | 4.09 | 2,655,607 | +54.6 | 06/30/2026 |
| Vanguard Portfolio Management, LLC | 3.66 | 2,377,019 | +66.0 | 06/30/2026 |
| Vanguard Capital Management, LLC | 3.47 | 2,254,109 | -6.7 | 06/30/2026 |
| State Street Corp | 3.34 | 2,170,689 | +11.6 | 06/30/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Vanguard MStar Total Stk Mkt Idx Invest | 2.73 | 1,772,564 | +7.3 | 09/30/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider holdings
| Person | Role | Shares | Value | As of | Type |
|---|---|---|---|---|---|
| Peetz Christopher | CHIEF EXECUTIVE OFFICER | 206,637 | 17,977,419 $ | Oct 6, 2026 | direct |
| Bjerkholt Eric | CHIEF FINANCIAL OFFICER | 44,745 | 3,892,815 $ | Sep 14, 2026 | direct |
| Howe Jolanda | SVP, GLOBAL CONTROLLER | 16,728 | 1,455,336 $ | Oct 16, 2026 | direct |
Holdings as of each person's most recent SEC Form 4 filing — excluding options and RSUs, which are not shares yet. Holdings may have changed between two filings.
Insiders
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Oct 16, 2026 | Howe Jolanda | SVP, GLOBAL CONTROLLER | Other | 16,112 | 19.24 | 309,995 |
| Oct 6, 2026 | Peetz Christopher | CHIEF EXECUTIVE OFFICER | Other | 6,892 | 15.87 | 109,376 |
| Oct 6, 2026 | Peetz Christopher | CHIEF EXECUTIVE OFFICER | Other | 5,305 | 19.19 | 101,803 |
| Sep 14, 2026 | Bjerkholt Eric | CHIEF FINANCIAL OFFICER | Sell | 9,943 | 98.37 | 978,093 |
| Sep 11, 2026 | Bjerkholt Eric | CHIEF FINANCIAL OFFICER | Other | 18,333 | – | – |
| Sep 2, 2026 | Howe Jolanda | SVP, GLOBAL CONTROLLER | Sell | 658 | 100.00 | 65,800 |
| Sep 1, 2026 | Peetz Christopher | CHIEF EXECUTIVE OFFICER | Sell | 21,688 | 98.91 | 2,145,160 |
| Sep 1, 2026 | Peetz Christopher | CHIEF EXECUTIVE OFFICER | Sell | 8,312 | 98.08 | 815,241 |
| Sep 1, 2026 | Peetz Christopher | CHIEF EXECUTIVE OFFICER | Other | 30,000 | 2.94 | 88,080 |
| Aug 18, 2026 | Howe Jolanda | SVP, GLOBAL CONTROLLER | Sell | 40,000 | 100.00 | 4,000,000 |
| Aug 18, 2026 | Howe Jolanda | SVP, GLOBAL CONTROLLER | Other | 40,000 | 6.27 | 250,800 |
| Aug 11, 2026 | Bjerkholt Eric | CHIEF FINANCIAL OFFICER | Sell | 6,001 | 99.90 | 599,510 |
| Aug 10, 2026 | Peetz Christopher | CHIEF EXECUTIVE OFFICER | Sell | 2,300 | 100.14 | 230,322 |
| Aug 10, 2026 | Peetz Christopher | CHIEF EXECUTIVE OFFICER | Sell | 6,017 | 99.25 | 597,187 |
| Aug 10, 2026 | Peetz Christopher | CHIEF EXECUTIVE OFFICER | Sell | 11,683 | 98.51 | 1,150,892 |
| Aug 10, 2026 | Peetz Christopher | CHIEF EXECUTIVE OFFICER | Other | 20,000 | 2.94 | 58,720 |
| Aug 3, 2026 | Howe Jolanda | SVP, GLOBAL CONTROLLER | Sell | 1,840 | 105.29 | 193,734 |
| Jul 6, 2026 | Peetz Christopher | CHIEF EXECUTIVE OFFICER | Sell | 1,710 | 124.79 | 213,391 |
| Jul 6, 2026 | Peetz Christopher | CHIEF EXECUTIVE OFFICER | Sell | 1,975 | 123.74 | 244,387 |
| Jul 6, 2026 | Peetz Christopher | CHIEF EXECUTIVE OFFICER | Sell | 4,181 | 122.34 | 511,504 |
| Jul 6, 2026 | Peetz Christopher | CHIEF EXECUTIVE OFFICER | Sell | 12,134 | 121.65 | 1,476,101 |
| Jul 6, 2026 | Peetz Christopher | CHIEF EXECUTIVE OFFICER | Other | 20,000 | 2.94 | 58,720 |
| Jul 6, 2026 | Bjerkholt Eric | CHIEF FINANCIAL OFFICER | Sell | 300 | 124.94 | 37,482 |
| Jul 6, 2026 | Bjerkholt Eric | CHIEF FINANCIAL OFFICER | Sell | 528 | 123.84 | 65,388 |
| Jul 6, 2026 | Bjerkholt Eric | CHIEF FINANCIAL OFFICER | Sell | 1,048 | 122.43 | 128,307 |
| Jul 6, 2026 | Bjerkholt Eric | CHIEF FINANCIAL OFFICER | Sell | 3,124 | 121.67 | 380,097 |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character. View all insider transactions →
Data as of: November 3, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.