As of the latest Form 4 filed Jul 8, 2026.
What Mirum Pharmaceuticals Inc insiders — officers, directors and 10% owners — have bought and sold in their own stock, straight from their SEC Form 4 filings. Values are shares × the reported transaction price where both are disclosed.
Buys plotted up, sells down; bar height is the disclosed dollar value (shares × reported price). Our Form 4 history is only complete from mid-2026, so early months are sparse — the series fills in as more filings land. Open-market purchases and sales only.
Newest filing first — the 41 most recent filings for MIRM.
| Filed | Trade date | Insider | Transaction | Shares | Price | Value | 10b5-1 | Filing |
|---|---|---|---|---|---|---|---|---|
| 2026-07-08 | 2026-07-06 | Peetz Christopher CHIEF EXECUTIVE OFFICER | SSale | −1.71K | $124.79 | $213K | Yes (planned) | Form 4 ↗ |
| 2026-07-08 | 2026-07-06 | Peetz Christopher, CHIEF EXECUTIVE OFFICER | SSale | −1.98K | $123.74 | $244K | Yes (planned) | Form 4 ↗ |
| 2026-07-08 | 2026-07-06 | Peetz Christopher, CHIEF EXECUTIVE OFFICER | SSale | −4.18K | $122.34 | $512K | Yes (planned) | Form 4 ↗ |
| 2026-07-08 | 2026-07-06 | Peetz Christopher, CHIEF EXECUTIVE OFFICER | SSale | −12.1K | $121.65 | $1.48M | Yes (planned) | Form 4 ↗ |
| 2026-07-08 | 2026-07-06 | Peetz Christopher, CHIEF EXECUTIVE OFFICER | MExercise | +20.0K | $2.94 | $58.7K | Yes (planned) | Form 4 ↗ |
| 2026-07-08 | 2026-07-06 | BJERKHOLT ERIC CHIEF FINANCIAL OFFICER | SSale | −300.00 | $124.94 | $37.5K | Yes (planned) | Form 4 ↗ |
| 2026-07-08 | 2026-07-06 | BJERKHOLT ERIC, CHIEF FINANCIAL OFFICER | SSale | −528.00 | $123.84 | $65.4K | Yes (planned) | Form 4 ↗ |
| 2026-07-08 | 2026-07-06 | BJERKHOLT ERIC, CHIEF FINANCIAL OFFICER | SSale | −1.05K | $122.43 | $128K | Yes (planned) | Form 4 ↗ |
| 2026-07-08 | 2026-07-06 | BJERKHOLT ERIC, CHIEF FINANCIAL OFFICER | SSale | −3.12K | $121.67 | $380K | Yes (planned) | Form 4 ↗ |
| 2026-07-02 | 2026-07-01 | Howe Jolanda SVP, GLOBAL CONTROLLER | SSale | −2.72K | $120.00 | $327K | Yes (planned) | Form 4 ↗ |
| 2026-06-18 | 2026-06-17 | Howe Jolanda SVP, GLOBAL CONTROLLER | SSale | −2.59K | $101.95 | $264K | Yes (planned) | Form 4 ↗ |
| 2026-06-09 | 2026-06-09 | BJERKHOLT ERIC CHIEF FINANCIAL OFFICER | MExercise | +2.39K | $26.49 | $63.4K | Yes (planned) | Form 4 ↗ |
| 2026-06-09 | 2026-06-08 | BJERKHOLT ERIC, CHIEF FINANCIAL OFFICER | SSale | −1.57K | $95.12 | $149K | Yes (planned) | Form 4 ↗ |
| 2026-06-09 | 2026-06-08 | BJERKHOLT ERIC, CHIEF FINANCIAL OFFICER | SSale | −1.18K | $93.95 | $110K | Yes (planned) | Form 4 ↗ |
| 2026-06-09 | 2026-06-08 | BJERKHOLT ERIC, CHIEF FINANCIAL OFFICER | SSale | −2.26K | $92.84 | $210K | Yes (planned) | Form 4 ↗ |
| 2026-06-08 | 2026-06-05 | Radovich Peter PRESIDENT AND COO | MExercise | +17.0K | $19.19 | $326K | No | Form 4 ↗ |
| 2026-06-02 | 2026-06-01 | Peetz Christopher CHIEF EXECUTIVE OFFICER | SSale | −883.00 | $99.66 | $88.0K | Yes (planned) | Form 4 ↗ |
| 2026-06-02 | 2026-06-01 | Peetz Christopher, CHIEF EXECUTIVE OFFICER | SSale | −1.02K | $98.20 | $100K | Yes (planned) | Form 4 ↗ |
| 2026-06-02 | 2026-06-01 | Peetz Christopher, CHIEF EXECUTIVE OFFICER | SSale | −1.97K | $97.56 | $192K | Yes (planned) | Form 4 ↗ |
| 2026-06-02 | 2026-06-01 | Peetz Christopher, CHIEF EXECUTIVE OFFICER | SSale | −6.93K | $96.15 | $666K | Yes (planned) | Form 4 ↗ |
| 2026-06-02 | 2026-06-01 | Peetz Christopher, CHIEF EXECUTIVE OFFICER | SSale | −16.6K | $95.34 | $1.58M | Yes (planned) | Form 4 ↗ |
| 2026-06-02 | 2026-06-01 | Peetz Christopher, CHIEF EXECUTIVE OFFICER | SSale | −2.60K | $94.64 | $246K | Yes (planned) | Form 4 ↗ |
| 2026-06-02 | 2026-06-01 | Peetz Christopher, CHIEF EXECUTIVE OFFICER | MExercise | +30.0K | $2.94 | $88.1K | Yes (planned) | Form 4 ↗ |
| 2026-06-02 | 2026-06-01 | Ramasastry Saira Director | SSale | −3.98K | $100.00 | $398K | No | Form 4 ↗ |
| 2026-06-02 | 2026-05-29 | Cardon Lon Director | MExercise | +3.98K | — | — | No | Form 4 ↗ |
| 2026-06-02 | 2026-05-29 | Ramasastry Saira Director | MExercise | +3.98K | — | — | No | Form 4 ↗ |
| 2026-06-02 | 2026-05-29 | Fischer Laurent Director | MExercise | +3.98K | — | — | No | Form 4 ↗ |
| 2026-06-02 | 2026-05-29 | Walbert Timothy P Director | MExercise | +3.98K | — | — | No | Form 4 ↗ |
| 2026-04-16 | 2026-04-15 | Ramasastry Saira Director | SSale | −2.00K | $96.90 | $194K | Yes (planned) | Form 4 ↗ |
| 2026-04-16 | 2026-04-15 | Ramasastry Saira, Director | MExercise | +2.00K | $23.51 | $47.0K | Yes (planned) | Form 4 ↗ |
| 2026-03-11 | 2026-03-06 | Radovich Peter PRESIDENT AND COO | MExercise | +5.91K | $15.87 | $93.8K | No | Form 4 ↗ |
| 2026-01-27 | 2026-01-26 | Howe Jolanda SVP, GLOBAL CONTROLLER | SSale | −842.00 | $96.19 | $81.0K | No | Form 4 ↗ |
| 2026-01-27 | 2026-01-26 | Radovich Peter PRESIDENT AND COO | SSale | −3.14K | $96.19 | $302K | No | Form 4 ↗ |
| 2026-01-27 | 2026-01-26 | Peetz Christopher CHIEF EXECUTIVE OFFICER | SSale | −6.83K | $96.19 | $657K | No | Form 4 ↗ |
| 2026-01-27 | 2026-01-26 | BJERKHOLT ERIC CHIEF FINANCIAL OFFICER | SSale | −1.05K | $96.19 | $101K | No | Form 4 ↗ |
| 2026-01-27 | 2026-01-23 | Howe Jolanda SVP, GLOBAL CONTROLLER | MExercise | +1.50K | — | — | No | Form 4 ↗ |
| 2026-01-27 | 2026-01-23 | Radovich Peter PRESIDENT AND COO | MExercise | +5.75K | — | — | No | Form 4 ↗ |
| 2026-01-27 | 2026-01-23 | Peetz Christopher CHIEF EXECUTIVE OFFICER | MExercise | +12.5K | — | — | No | Form 4 ↗ |
| 2026-01-27 | 2026-01-23 | Heron Patrick J Director | PPurchase | +131K | $68.48 | $9.00M | No | Form 4 ↗ |
| 2026-01-27 | 2026-01-23 | Heron Patrick J, Director | JOther | +159K | — | — | No | Form 4 ↗ |
| 2026-01-27 | 2026-01-23 | BJERKHOLT ERIC CHIEF FINANCIAL OFFICER | MExercise | +2.67K | — | — | No | Form 4 ↗ |
Insiders — a company’s officers, directors and holders of more than 10% of its stock — must report any trade in that stock to the SEC on a Form 4 within two business days. Each row here is one transaction from those filings.
The transaction code tells you what happened: Purchase (P) and Sale (S) are open-market trades — the ones markets watch most; Award (A) is a granted stock or unit, Option exercise (M) converts options into shares, and Gift (G) is a transfer for no consideration. Awards, exercises and gifts are largely compensation or administrative, not a directional bet.
One caveat on sales: many are made under a Rule 10b5-1 plan scheduled months in advance, so a sale is not automatically a bearish signal. Insider activity is a noisy input — read it alongside the filings, not on its own.
See also MIRM’s full analysis or the market-wide insider trading feed. The tabs above jump to MIRM’s other SEC data.
Source: SEC Form 4 filings for MIRM, parsed from EDGAR. Transaction prices are as reported in the filing — SEC public-domain data, not market quotes. Values are shares × reported price where both are disclosed; grants and gifts often carry no price. A delayed record of what insiders reported, not a live position or a recommendation.
Research and education only — not financial advice. TENKis not a registered investment adviser or broker-dealer and gives no personalized advice. Every call is impersonal — identical for all users, generated on a schedule from SEC filings plus a delayed/third-party price feed — may be wrong or out of date, and is not a recommendation to buy or sell any security. The operator and an affiliated trading operation may hold or trade the securities TENK rates; see Disclosures. Past performance does not guarantee future results. Do your own research.