Form 4 for MIRM Mirum Pharmaceuticals, Inc.
Accepted 2025-09-12 00:00:00 ET · period of report 2025-09-11 · accession 0001415889-25-024463 · SEC index · Original document
Summary rows
Aggregated the way they appear in lists: one row per insider, transaction code and security table.
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| DM | 2025-09-12 | 2025-09-11 | MIRM | Brege Laura | Dir | S - Sale+OE | $74.40 | -17.0K | 17.2K | -50% | -$1.26M |
| D | 2025-09-12 | 2025-09-11 | MIRM | Brege Laura | Dir | M - OptEx | $15.00 | +17.0K | 32.7K | +108% | +$255.0K |
| D | 2025-09-12 | 2025-09-11 | MIRM | Brege Laura | Dir | M - OptEx | $0.00 | -17.0K | 0 | -100% | $0 |
Purchase Sale Sale after option exercise All abbreviations
Every reported transaction
| # | Table | Security | Date | Code | A/D | Shares | Price | Owned after | Own | Exercise / expiry | Underlying | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Common | Common Stock | 2025-09-11 | S | D | 1,491 | $75.07 | 15,703 | D | — | — | (F2) The weighted average sale price for the transaction reported was $75.07, and the range of prices were between $74.745 and $75.19. Upon request by the SEC staff, the Issuer, or any security holder of the Issuer, full information regarding the number of shares sold at each separate price will be provided. |
| 2 | Common | Common Stock | 2025-09-11 | S | D | 15,509 | $74.34 | 17,194 | D | — | — | (F1) The weighted average sale price for the transaction reported was $74.34, and the range of prices were between $73.73 and $74.73. Upon request by the SEC staff, the Issuer, or any security holder of the Issuer, full information regarding the number of shares sold at each separate price will be provided. |
| 3 | Common | Common Stock | 2025-09-11 | M | A | 17,000 | $15.00 | 32,703 | D | — | — | |
| 4 | Derivative | Stock Option (right to buy) | 2025-09-11 | M | D | 17,000 | $0.00 | 0 | D | $15.00 · — to 2029-07-16 | 17,000 Common Stock | (F3) The stock option is fully vested. |