Mirum Pharmaceuticals, Inc. (MIRM) ownership: insiders 1% · institutions 107% · index and ETF funds 6% (13F 2026-03-31). Insider activity, 90 days: Routine (26 sales, 0 open-market buys). SEC EDGAR first-party data.
| Holder | Shares | Market Value | % Outstanding | Reported |
|---|---|---|---|---|
| Frazier Life Sciences Management, L.P. | 7679684.00 | $709.45M | 12.6% | 2026-03-31 |
| Janus Henderson | 6945813.00 | $641.76M | 11.4% | 2026-03-31 |
| Vanguard | 4235783.00 | $391.30M | 6.9% | 2026-03-31 |
| BlackRock | 3846530.00 | $355.34M | 6.3% | 2026-03-31 |
| FMR (Fidelity) | 1965375.00 | $181.56M | 3.2% | 2026-03-31 |
| State Street | 1944281.00 | $179.61M | 3.2% | 2026-03-31 |
| BVF Inc/il | 1584727.00 | $146.40M | 2.6% | 2026-03-31 |
| Eventide Asset Management, LLC | 1408871.00 | $130.11M | 2.3% | 2026-03-31 |
| Insider | Transaction | Value | Date |
|---|---|---|---|
| Sell | null | 2026-08-18 | |
| Sell | null | 2026-08-18 | |
| Sell | null | 2026-08-18 | |
| Sell | null | 2026-08-11 | |
| Sell | null | 2026-08-10 | |
| Sell | null | 2026-08-10 | |
| Sell | null | 2026-08-10 | |
| Sell | null | 2026-08-10 |
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Institutional data from SEC Form 13F. Insider data from SEC Form 4. Congressional data from STOCK Act disclosures. Not personalized investment advice.