Company profile
Mirum Pharmaceuticals, Inc. Insider Trading
MIRMEvery SEC Form 4 insider trading filing for Mirum Pharmaceuticals, Inc. (MIRM) since April 2023: open-market buys and sells by directors and officers, option exercises, and cluster activity, updated as each filing is reported to the SEC. Why 2023?
- Exchange
- Nasdaq
- Sector
- Pharmaceutical Preparations
- CIK
- 0001759425
- Filings
- 193
- Insiders
- 25
- Last filing
- 2026-09-14
Activity summary
Recent insider activity is bearish. Over the last 30 days, insiders net sold $978K across 1 transaction.
Three year balance
Buy and sell value by quarter, Q4 23 to Q3 26. Mirum Pharmaceuticals, Inc. insiders are net sellers across the period shown.
Bars below the rule are sales, above are purchases. Largest quarter on the chart is $14.2M.
90 day insight
Over the last 90 days, Mirum Pharmaceuticals, Inc. insiders sold $5.0M across 2 transactions with no open-market purchases.
- Most active insider: Christopher Peetz with 15 transactions totaling $7.6M.
- Largest single sale: $4.0M by Jolanda Howe on Aug 18, 2026.
- 89% of recent sales were pre-scheduled 10b5-1 trades, typically less informative than open-market activity.
Activity skews bearish: sales outpace buys.
Insider Transactions
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Sep 14, 2026 | Eric Bjerkholt | MIRM | Sale | 9,943 | $98.37 | $978K |
| Sep 11, 2026 | Eric Bjerkholt | MIRM | Option Exercise | 18,333 | — | — |
| Sep 11, 2026 | Eric Bjerkholt | MIRM | Option Exercise | 18,333 | — | — |
| Sep 2, 2026 | Jolanda Howe | MIRM | Sale10b5 | 658 | $100.00 | $66K |
| Sep 1, 2026 | Christopher Peetz | MIRM | Option Exercise | 30,000 | $2.94 | $88K |
45 more transactions hidden
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-H "X-Api-Key: $KEY"Top insiders
By open-market value traded.
Institutional Ownership
Top 13F-HR holders of Mirum Pharmaceuticals, Inc. as of 2026-06-30
Data source: quarterly 13F-HR filings: institutional holders report positions within 45 days of quarter end. Joined with insider activity above: see who's loading up institutionally while insiders are trading. Full 13F-HR API →