Form 4 for MIRM Mirum Pharmaceuticals, Inc.
Accepted 2025-12-23 00:00:00 ET · period of report 2025-12-19 · accession 0001240122-25-000011 · 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| D | 2025-12-23 | 2025-12-19 | MIRM | GREY MICHAEL G | Dir | S - Sale+OE | $78.00 | -50.0K | 0 | -100% | -$3.90M |
| D | 2025-12-23 | 2025-12-19 | MIRM | GREY MICHAEL G | Dir | M - OptEx | $2.94 | +50.0K | 50.0K | New | +$147.0K |
| D | 2025-12-23 | 2025-12-19 | MIRM | GREY MICHAEL G | Dir | M - OptEx | $0.00 | -50.0K | 181.2K | -22% | $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 | 2025-12-19 | S | D | 50,000 | $78.00 | 0 | D | — | — | |
| 2 | Common | Common Stock | 2025-12-19 | M | A | 50,000 | $2.94 | 50,000 | D | — | — | |
| 3 | Derivative | Stock Option (right to buy) | 2025-12-19 | M | D | 50,000 | $0.00 | 181,176 | D | $2.94 · — to 2029-03-11 | 50,000 Common Stock | (F2) The stock option is fully vested and exercisable. |