Mirum Pharmaceuticals, Inc. (MIRM) Insider Trading
Over the last 3 months, MIRM insiders made 0 open-market buys and 15 sales, a net sale of -$10.9M (SEC Form 4). Over the last 6 months, 233 institutions increased and 168 reduced their position (13F).
Insider Activity
Sentiment
0/100
Buys (3m)
0
Sells (3m)
15
Net (3m)
-$10.9M
Insider trades by month Buys Sells
Jan
Feb
Mar
Apr
May
Jun
Context3-month price -1.3%Institutions accumulating (13F)
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| Jun 2, 2026 | Peetz Christopherdirector, officer: CHIEF EXECUTIVE OFFICER | Sell | 1,973 | $97.56 |
| Jun 2, 2026 | Fischer Laurentdirector | Option | 3,977 | — |
| Jun 2, 2026 | Peetz Christopherdirector, officer: CHIEF EXECUTIVE OFFICER | Sell | 2,602 | $94.64 |
| Jun 2, 2026 | Peetz Christopherdirector, officer: CHIEF EXECUTIVE OFFICER | Sell | 1,021 | $98.20 |
| Jun 2, 2026 | Cardon Londirector | Option | 3,977 | — |
| Jun 2, 2026 | Ramasastry Sairadirector | Sell | 3,977 | $100.00 |
| Jun 2, 2026 | Walbert Timothy Pdirector | Option | 3,977 | — |
| Jun 2, 2026 | Ramasastry Sairadirector | Option | 3,977 | — |
| Jun 2, 2026 | Peetz Christopherdirector, officer: CHIEF EXECUTIVE OFFICER | Sell | 883 | $99.66 |
| Jun 2, 2026 | Peetz Christopherdirector, officer: CHIEF EXECUTIVE OFFICER | Option | 30,000 | $2.94 |
| Jun 2, 2026 | Peetz Christopherdirector, officer: CHIEF EXECUTIVE OFFICER | Sell | 6,926 | $96.15 |
| Jun 2, 2026 | Peetz Christopherdirector, officer: CHIEF EXECUTIVE OFFICER | Sell | 16,595 | $95.34 |
| May 18, 2026 | Ramasastry Sairadirector | Sell | 2,000 | $109.47 |
| May 18, 2026 | Ramasastry Sairadirector | Option | 2,000 | $23.51 |
| Apr 16, 2026 | Ramasastry Sairadirector | Sell | 2,000 | $96.90 |
| Apr 16, 2026 | Ramasastry Sairadirector | Option | 2,000 | $23.51 |
| Mar 17, 2026 | Radovich Peterofficer: PRESIDENT AND COO | Sell | 16,515 | $91.98 |
| Mar 17, 2026 | Peetz Christopherdirector, officer: CHIEF EXECUTIVE OFFICER | Option | 25,000 | — |
| Mar 17, 2026 | BJERKHOLT ERICofficer: CHIEF FINANCIAL OFFICER | Sell | 7,287 | $91.98 |
| Mar 17, 2026 | Howe Jolandaofficer: SVP, GLOBAL CONTROLLER | Sell | 4,732 | $91.98 |
| Mar 17, 2026 | Howe Jolandaofficer: SVP, GLOBAL CONTROLLER | Option | 2,658 | — |
| Mar 17, 2026 | Ramasastry Sairadirector | Option | 2,000 | $23.51 |
| Mar 17, 2026 | Peetz Christopherdirector, officer: CHIEF EXECUTIVE OFFICER | Sell | 40,985 | $91.98 |
| Mar 17, 2026 | Quan Joanneofficer: CHIEF MEDICAL OFFICER | Option | 13,334 | — |
| Mar 17, 2026 | Ramasastry Sairadirector | Sell | 2,000 | $90.76 |
| Mar 17, 2026 | BJERKHOLT ERICofficer: CHIEF FINANCIAL OFFICER | Option | 13,334 | — |
| Mar 17, 2026 | Radovich Peterofficer: PRESIDENT AND COO | Option | 7,220 | — |
| Mar 17, 2026 | Peetz Christopherdirector, officer: CHIEF EXECUTIVE OFFICER | Option | 50,000 | — |
| Mar 17, 2026 | Quan Joanneofficer: CHIEF MEDICAL OFFICER | Sell | 7,287 | $91.98 |
| Mar 17, 2026 | Radovich Peterofficer: PRESIDENT AND COO | Option | 23,000 | — |
Source: MIRM SEC Form 4 filings, latest Jun 2, 2026. For informational purposes only — not investment advice.
Institutional activity (13F)
How institutions changed their MIRM positions over the last 6 months (SEC Form 13F).
Increased
233
New positions
119
Reduced
168
Sold out
74
Largest moves
| Institution | Action | Shares | Filed |
|---|---|---|---|
| FRAZIER LIFE SCIENCES MANAGEMENT, L.P. | Increased | 7.7M | May 15, 2026 |
| JANUS HENDERSON GROUP PLC | Increased | 6.9M | May 18, 2026 |
| FRAZIER LIFE SCIENCES MANAGEMENT, L.P. | Unchanged | 6.8M | Feb 13, 2026 |
| JANUS HENDERSON GROUP PLC | Increased | 6.1M | Feb 17, 2026 |
| BLACKROCK, INC. | Increased | 3.8M | May 13, 2026 |
| BLACKROCK, INC. | Increased | 3.6M | Feb 12, 2026 |
| VANGUARD GROUP INC | Increased | 2.6M | Jan 29, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 2.4M | May 15, 2026 |
| STATE STREET CORP | Increased | 2.1M | Feb 13, 2026 |
| EVENTIDE ASSET MANAGEMENT, LLC | Reduced | 2.1M | Feb 13, 2026 |
| FMR LLC | Increased | 2.0M | May 15, 2026 |
| STATE STREET CORP | Reduced | 1.9M | May 15, 2026 |
| PRICE T ROWE ASSOCIATES INC /MD/ | Increased | 1.7M | May 15, 2026 |
| BVF INC/IL | Increased | 1.6M | May 15, 2026 |
| BVF INC/IL | Unchanged | 1.5M | Feb 17, 2026 |
Source: SEC Form 13F filings. For informational purposes only — not investment advice.