It has been a mixed year for Mirum Pharmaceuticals, Inc. insiders: $9 million bought by one person and $42.2 million sold by seven, so more selling than buying overall.
The largest purchase came from Heron Patrick J (Director), about $9 million.
Big money check: 327 institutions held MIRM as of Q2 2026, and more funds bought than sold. Looking at the quarterly pattern: 7 quarters in a row of net selling by insiders. Insiders bought in 2 of the last 7 full quarters.
| Filed | Insider | Role | Type | Shares | Price | Value | Source |
|---|---|---|---|---|---|---|---|
| Sep 15, 2026 | BJERKHOLT ERIC | CFO | Sell | 9,943 | $98.37 | $978K | SEC |
| Sep 3, 2026 | Howe Jolanda | Executive Officer | Sell | 658 | $100.00 | $66K | SEC |
| Sep 3, 2026 | Peetz Christopher | CEO | Sell | 8,312 | $98.08 | $815K | SEC |
| Sep 3, 2026 | Peetz Christopher | CEO | Sell | 21,688 | $98.91 | $2.1M | SEC |
| Aug 19, 2026 | Howe Jolanda | Executive Officer | Sell | 40,000 | $100.00 | $4.0M | SEC |
| Aug 12, 2026 | BJERKHOLT ERIC | CFO | Sell | 6,001 | $99.90 | $599K | SEC |
| Aug 11, 2026 | Peetz Christopher | CEO | Sell | 6,017 | $99.25 | $597K | SEC |
| Aug 11, 2026 | Peetz Christopher | CEO | Sell | 11,683 | $98.51 | $1.2M | SEC |
| Aug 11, 2026 | Peetz Christopher | CEO | Sell | 2,300 | $100.14 | $230K | SEC |
| Aug 5, 2026 | Howe Jolanda | Executive Officer | Sell | 1,840 | $105.29 | $194K | SEC |
| Jul 8, 2026 | Peetz Christopher | CEO | Sell | 12,134 | $121.65 | $1.5M | SEC |
| Jul 8, 2026 | Peetz Christopher | CEO | Sell | 1,975 | $123.74 | $244K | SEC |
| Jul 8, 2026 | BJERKHOLT ERIC | CFO | Sell | 528 | $123.84 | $65K | SEC |
| Jul 8, 2026 | BJERKHOLT ERIC | CFO | Sell | 1,048 | $122.43 | $128K | SEC |
| Jul 8, 2026 | BJERKHOLT ERIC | CFO | Sell | 3,124 | $121.67 | $380K | SEC |
In the last 12 months Mirum Pharmaceuticals, Inc. insiders made open-market purchases worth about $9 million and sales worth about $42.2 million. Data comes from SEC Form 4 filings, updated every 30 minutes on CapitalSnitch.
The most recent open-market insider trade in MIRM was filed on 2026-09-15.
327 investment managers reported holding MIRM in SEC Form 13F filings for Q2 2026.
No congressional trades in MIRM were reported in the past two years. The full list is free on CapitalSnitch.
Public-record data for research and education, not investment advice. Insider sales are often pre-planned (10b5-1). Congress data: Data derived from public disclosures filed under the Ethics in Government Act and the STOCK Act, republished free for public transparency and news reporting. Disclosures may lag the trade by 45 days or more and show amounts only as ranges. This data may not be used for credit rating, loan underwriting, solicitation of money (political, charitable or other), direct-mail or commercial targeting (5 U.S.C. 13107).