Updated Jul 16, 2026 · Last SEC filing 2026-07-08
Mirum Pharmaceuticals, Inc. (MIRM) has filed 20 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-07-08. 5 Form 8-K material event filings were reported by MIRM in the last 90 days. 8 Form 144 notices of proposed sale were filed for MIRM stock. InsiderAlpha tracks every MIRM SEC filing — Form 4, Form 144, and 8-K — in real time, including Rule 10b5-1 plan detection.
| SEC CIK | 0001759425 |
|---|
| Form 4 filings (90d) | 20 |
|---|---|
| Form 8-K filings (90d) | 5 |
| Form 144 notices (90d) | 8 |
| Latest Form 4 filing | 2026-07-08 |
| Date | Insider | Role | Transaction | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| BJERKHOLT ERIC | CHIEF FINANCIAL OFFICER | S — Open-market sale | 1.0K | $122.43 | $128K | SEC | |
| Peetz Christopher | CHIEF EXECUTIVE OFFICER | S — Open-market sale | 2.0K | $123.74 | $244K | SEC | |
| Peetz Christopher | CHIEF EXECUTIVE OFFICER | M — Option exercise | 20.0K | $2.94 | $59K | SEC | |
| Peetz Christopher | CHIEF EXECUTIVE OFFICER | S — Open-market sale | 1.7K | $124.79 | $213K | SEC | |
| Peetz Christopher | CHIEF EXECUTIVE OFFICER | S — Open-market sale | 12.1K | $121.65 | $1.48M | SEC | |
| Peetz Christopher | CHIEF EXECUTIVE OFFICER | S — Open-market sale | 4.2K | $122.34 | $512K | SEC | |
| BJERKHOLT ERIC | CHIEF FINANCIAL OFFICER | S — Open-market sale | 3.1K | $121.67 | $380K | SEC | |
| BJERKHOLT ERIC | CHIEF FINANCIAL OFFICER | S — Open-market sale | 300 | $124.94 | $37K | SEC | |
| BJERKHOLT ERIC | CHIEF FINANCIAL OFFICER | S — Open-market sale | 528 | $123.84 | $65K | SEC | |
| Howe Jolanda | SVP, GLOBAL CONTROLLER | S — Open-market sale | 2.7K | $120.00 | $327K | SEC | |
| Howe Jolanda | SVP, GLOBAL CONTROLLER | S — Open-market sale | 2.6K | $101.95 | $264K | SEC | |
| BJERKHOLT ERIC | CHIEF FINANCIAL OFFICER | M — Option exercise | 2.4K | $26.49 | $63K | SEC | |
| BJERKHOLT ERIC | CHIEF FINANCIAL OFFICER | S — Open-market sale | 2.3K | $92.84 | $210K | SEC | |
| BJERKHOLT ERIC | CHIEF FINANCIAL OFFICER | S — Open-market sale | 1.2K | $93.95 | $110K | SEC | |
| BJERKHOLT ERIC | CHIEF FINANCIAL OFFICER | S — Open-market sale | 1.6K | $95.12 | $149K | SEC |
All transactions sourced from SEC EDGAR Form 4 filings for Mirum Pharmaceuticals, Inc. (MIRM). Updated in real time as new filings are submitted to the SEC.
| Insider | Form 4 filings | Total transaction value |
|---|---|---|
| Peetz Christopher | 14 | $5.47M |
| BJERKHOLT ERIC | 9 | $1.14M |
| Ramasastry Saira | 8 | $664K |
| Walbert Timothy P | 4 | — |
| Cardon Lon | 4 | — |
Form 144 must be filed before insiders sell restricted or control stock above SEC thresholds. A cluster of Form 144 notices often precedes a wave of insider distribution.
SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in MIRM insider filings:
| P | Open-market purchase by the insider |
|---|---|
| S | Open-market sale by the insider |
| A | Grant, award, or other acquisition from the issuer |
| M | Exercise or conversion of derivative security (e.g. options) |
| F | Payment of exercise price or tax liability via share withholding |
| G | Bona-fide gift of securities |
| D | Disposition to the issuer (e.g. share buyback participation) |
| J | Other acquisition or disposition |
| X | Exercise of in-the-money or at-the-money derivative security |
| C | Conversion of derivative security |
| V | Transaction voluntarily reported earlier than required |
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