Christopher Peetz, CEO of Mirum Pharmaceuticals ($MIRM), sold shares on the open market six times over the past year, totaling about $8.2 million. His most recent sale occurred on February 2, 2026. These transactions rank 1,328th among over 11,700 insiders in our database, where the average sale amount is roughly $8.6 million across about six trades per person. Peetz made no open market purchases during this period.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| March 15, 2026 | Mirum Pharmaceuticals, Inc. | $MIRM | Peetz Christopher | CHIEF EXECUTIVE OFFICER | M | Common Stock | 25000 | $0.00 | 372,794.0000 | 56,993,841 | 7.19% | 0.04% |
| March 16, 2026 | Mirum Pharmaceuticals, Inc. | $MIRM | Peetz Christopher | CHIEF EXECUTIVE OFFICER | S | Common Stock | 40985 | $91.98 | 381,809.0000 | 56,993,841 | 9.69% | 0.07% |
| March 15, 2026 | Mirum Pharmaceuticals, Inc. | $MIRM | Peetz Christopher | CHIEF EXECUTIVE OFFICER | M | Performance Restricted Stock Units | 25000 | $0.00 | 0.0000 | 56,993,841 | 100.00% | 0.04% |
| March 15, 2026 | Mirum Pharmaceuticals, Inc. | $MIRM | Peetz Christopher | CHIEF EXECUTIVE OFFICER | M | Performance Restricted Stock Units | 50000 | $0.00 | 25,000.0000 | 56,993,841 | 66.67% | 0.09% |
| March 15, 2026 | Mirum Pharmaceuticals, Inc. | $MIRM | Peetz Christopher | CHIEF EXECUTIVE OFFICER | M | Common Stock | 50000 | $0.00 | 422,794.0000 | 56,993,841 | 13.41% | 0.09% |
| Feb. 2, 2026 | Mirum Pharmaceuticals, Inc. | $MIRM | Peetz Christopher | CHIEF EXECUTIVE OFFICER | S | Common Stock | 9108 | $103.30 | 347,794.0000 | 56,993,841 | 2.55% | 0.02% |
| Jan. 28, 2026 | Mirum Pharmaceuticals, Inc. | $MIRM | Peetz Christopher | CHIEF EXECUTIVE OFFICER | A | Stock Option (right to buy) | 67000 | $0.00 | 67,000.0000 | 56,993,841 | 9999.99% | 0.12% |
| Jan. 28, 2026 | Mirum Pharmaceuticals, Inc. | $MIRM | Peetz Christopher | CHIEF EXECUTIVE OFFICER | A | Performance Restricted Stock Units | 75000 | $0.00 | 75,000.0000 | 56,993,841 | 9999.99% | 0.13% |
| Jan. 28, 2026 | Mirum Pharmaceuticals, Inc. | $MIRM | Peetz Christopher | CHIEF EXECUTIVE OFFICER | A | Restricted Stock Units | 43500 | $0.00 | 43,500.0000 | 56,993,841 | 9999.99% | 0.08% |
| Jan. 23, 2026 | Mirum Pharmaceuticals, Inc. | $MIRM | Peetz Christopher | CHIEF EXECUTIVE OFFICER | M | Restricted Stock Units | 12500 | $0.00 | 12,500.0000 | 56,993,841 | 50.00% | 0.02% |
| Jan. 26, 2026 | Mirum Pharmaceuticals, Inc. | $MIRM | Peetz Christopher | CHIEF EXECUTIVE OFFICER | S | Common Stock | 6831 | $96.19 | 356,902.0000 | 56,993,841 | 1.88% | 0.01% |
| Jan. 23, 2026 | Mirum Pharmaceuticals, Inc. | $MIRM | Peetz Christopher | CHIEF EXECUTIVE OFFICER | M | Common Stock | 12500 | $0.00 | 363,733.0000 | 56,993,841 | 3.56% | 0.02% |
| Jan. 21, 2026 | Mirum Pharmaceuticals, Inc. | $MIRM | Peetz Christopher | CHIEF EXECUTIVE OFFICER | M | Common Stock | 12797 | $0.00 | 358,331.0000 | 56,993,841 | 3.70% | 0.02% |
| Jan. 21, 2026 | Mirum Pharmaceuticals, Inc. | $MIRM | Peetz Christopher | CHIEF EXECUTIVE OFFICER | M | Restricted Stock Units | 12797 | $0.00 | 25,593.0000 | 56,993,841 | 33.33% | 0.02% |
| Jan. 22, 2026 | Mirum Pharmaceuticals, Inc. | $MIRM | Peetz Christopher | CHIEF EXECUTIVE OFFICER | S | Common Stock | 7098 | $93.33 | 351,233.0000 | 56,993,841 | 1.98% | 0.01% |
| Dec. 31, 2025 | Mirum Pharmaceuticals, Inc. | $MIRM | Peetz Christopher | CHIEF EXECUTIVE OFFICER | G | Common Stock | 21070 | $0.00 | 345,534.0000 | 56,993,841 | 5.75% | 0.04% |
| Nov. 18, 2025 | Mirum Pharmaceuticals, Inc. | $MIRM | Peetz Christopher | CHIEF EXECUTIVE OFFICER | M | Common Stock | 19133 | $19.24 | 366,604.0000 | 56,993,841 | 5.51% | 0.03% |
| Nov. 18, 2025 | Mirum Pharmaceuticals, Inc. | $MIRM | Peetz Christopher | CHIEF EXECUTIVE OFFICER | M | Employee Stock Option (right to buy) | 19133 | $0.00 | 150,867.0000 | 56,993,841 | 11.25% | 0.03% |
| Aug. 11, 2025 | Mirum Pharmaceuticals, Inc. | $MIRM | Peetz Christopher | CHIEF EXECUTIVE OFFICER | S | Common Stock | 40000 | $62.00 | 347,211.0000 | 47,522,594 | 10.33% | 0.08% |
| Aug. 11, 2025 | Mirum Pharmaceuticals, Inc. | $MIRM | Peetz Christopher | CHIEF EXECUTIVE OFFICER | M | Common Stock | 40000 | $2.94 | 387,211.0000 | 47,522,594 | 11.52% | 0.08% |
| Aug. 11, 2025 | Mirum Pharmaceuticals, Inc. | $MIRM | Peetz Christopher | CHIEF EXECUTIVE OFFICER | M | Employee Stock Option (right to buy) | 40000 | $0.00 | 158,487.0000 | 47,522,594 | 20.15% | 0.08% |
| Aug. 7, 2025 | Mirum Pharmaceuticals, Inc. | $MIRM | Peetz Christopher | CHIEF EXECUTIVE OFFICER | M | Common Stock | 40000 | $2.94 | 387,211.0000 | 47,522,594 | 11.52% | 0.08% |
| Aug. 7, 2025 | Mirum Pharmaceuticals, Inc. | $MIRM | Peetz Christopher | CHIEF EXECUTIVE OFFICER | S | Common Stock | 40000 | $55.25 | 347,211.0000 | 47,522,594 | 10.33% | 0.08% |
| Aug. 7, 2025 | Mirum Pharmaceuticals, Inc. | $MIRM | Peetz Christopher | CHIEF EXECUTIVE OFFICER | M | Employee Stock Option (right to buy) | 40000 | $0.00 | 198,487.0000 | 47,522,594 | 16.77% | 0.08% |
| March 15, 2025 | Mirum Pharmaceuticals, Inc. | $MIRM | Peetz Christopher | CHIEF EXECUTIVE OFFICER | M | Performance Restricted Stock Units | 50000 | $0.00 | 25,000.0000 | 47,522,594 | 66.67% | 0.11% |
| March 15, 2025 | Mirum Pharmaceuticals, Inc. | $MIRM | Peetz Christopher | CHIEF EXECUTIVE OFFICER | M | Common Stock | 50000 | $0.00 | 374,490.0000 | 47,522,594 | 15.41% | 0.11% |
| March 17, 2025 | Mirum Pharmaceuticals, Inc. | $MIRM | Peetz Christopher | CHIEF EXECUTIVE OFFICER | S | Common Stock | 27279 | $44.21 | 347,211.0000 | 47,522,594 | 7.28% | 0.06% |
| March 3, 2025 | Mirum Pharmaceuticals, Inc. | $MIRM | Peetz Christopher | CHIEF EXECUTIVE OFFICER | M | Employee Stock Option (right to buy) | 40000 | $0.00 | 238,487.0000 | 47,522,594 | 14.36% | 0.08% |
| March 3, 2025 | Mirum Pharmaceuticals, Inc. | $MIRM | Peetz Christopher | CHIEF EXECUTIVE OFFICER | M | Common Stock | 40000 | $2.94 | 364,490.0000 | 47,522,594 | 12.33% | 0.08% |
| March 3, 2025 | Mirum Pharmaceuticals, Inc. | $MIRM | Peetz Christopher | CHIEF EXECUTIVE OFFICER | S | Common Stock | 19392 | $46.61 | 345,098.0000 | 47,522,594 | 5.32% | 0.04% |
| March 3, 2025 | Mirum Pharmaceuticals, Inc. | $MIRM | Peetz Christopher | CHIEF EXECUTIVE OFFICER | S | Common Stock | 20608 | $47.19 | 324,490.0000 | 47,522,594 | 5.97% | 0.04% |
| Feb. 3, 2025 | Mirum Pharmaceuticals, Inc. | $MIRM | Peetz Christopher | CHIEF EXECUTIVE OFFICER | S | Common Stock | 9102 | $48.22 | 324,490.0000 | 47,522,594 | 2.73% | 0.02% |
| Jan. 23, 2025 | Mirum Pharmaceuticals, Inc. | $MIRM | Peetz Christopher | CHIEF EXECUTIVE OFFICER | M | Restricted Stock Units | 12500 | $0.00 | 25,000.0000 | 47,522,594 | 33.33% | 0.03% |
| Jan. 24, 2025 | Mirum Pharmaceuticals, Inc. | $MIRM | Peetz Christopher | CHIEF EXECUTIVE OFFICER | S | Common Stock | 6837 | $47.92 | 333,592.0000 | 47,522,594 | 2.01% | 0.01% |
| Jan. 23, 2025 | Mirum Pharmaceuticals, Inc. | $MIRM | Peetz Christopher | CHIEF EXECUTIVE OFFICER | M | Common Stock | 12500 | $0.00 | 340,429.0000 | 47,522,594 | 3.81% | 0.03% |
| Jan. 21, 2025 | Mirum Pharmaceuticals, Inc. | $MIRM | Peetz Christopher | CHIEF EXECUTIVE OFFICER | A | Restricted Stock Units | 38390 | $0.00 | 38,390.0000 | 47,522,594 | 9999.99% | 0.08% |
| Jan. 21, 2025 | Mirum Pharmaceuticals, Inc. | $MIRM | Peetz Christopher | CHIEF EXECUTIVE OFFICER | A | Stock Option (right to buy) | 153550 | $0.00 | 153,550.0000 | 47,522,594 | 9999.99% | 0.32% |
| Jan. 21, 2025 | Mirum Pharmaceuticals, Inc. | $MIRM | Peetz Christopher | CHIEF EXECUTIVE OFFICER | A | Performance Restricted Stock Units | 75000 | $0.00 | 75,000.0000 | 47,522,594 | 9999.99% | 0.16% |
| Jan. 7, 2025 | Mirum Pharmaceuticals, Inc. | $MIRM | Peetz Christopher | CHIEF EXECUTIVE OFFICER | S | Common Stock | 7489 | $42.82 | 327,929.0000 | 47,522,594 | 2.23% | 0.02% |
| Nov. 8, 2024 | Mirum Pharmaceuticals, Inc. | $MIRM | Peetz Christopher | CHIEF EXECUTIVE OFFICER | A | Common Stock | 65 | $21.05 | 335,418.0000 | 47,782,619 | 0.02% | 0.00% |
| July 23, 2024 | Mirum Pharmaceuticals, Inc. | $MIRM | Peetz Christopher | CHIEF EXECUTIVE OFFICER | M | Stock Option (right to buy) | 34013 | $0.00 | 278,487.0000 | 40,885,124 | 10.88% | 0.08% |
| July 23, 2024 | Mirum Pharmaceuticals, Inc. | $MIRM | Peetz Christopher | CHIEF EXECUTIVE OFFICER | M | Common Stock | 34013 | $2.94 | 335,353.0000 | 40,885,124 | 11.29% | 0.08% |
| May 10, 2024 | Mirum Pharmaceuticals, Inc. | $MIRM | Peetz Christopher | CHIEF EXECUTIVE OFFICER | A | Common Stock | 817 | $21.05 | 301,340.0000 | 40,885,124 | 0.27% | 0.00% |
| Jan. 9, 2023 | Mirum Pharmaceuticals, Inc. | $MIRM | Peetz Christopher | CHIEF EXECUTIVE OFFICER | S | Common Stock | 5159 | $20.62 | 300,523.0000 | 33,982,493 | 1.69% | 0.02% |
| Feb. 2, 2024 | Mirum Pharmaceuticals, Inc. | $MIRM | Peetz Christopher | CHIEF EXECUTIVE OFFICER | S | Common Stock | 6013 | $26.19 | 305,682.0000 | 40,885,124 | 1.93% | 0.01% |
| Jan. 23, 2024 | Mirum Pharmaceuticals, Inc. | $MIRM | Peetz Christopher | CHIEF EXECUTIVE OFFICER | A | Stock Option (right to buy) | 150000 | $0.00 | 150,000.0000 | 40,885,124 | 9999.99% | 0.37% |
| Jan. 23, 2024 | Mirum Pharmaceuticals, Inc. | $MIRM | Peetz Christopher | CHIEF EXECUTIVE OFFICER | A | Restricted Stock Units | 37500 | $0.00 | 37,500.0000 | 40,885,124 | 9999.99% | 0.09% |
| Jan. 8, 2024 | Mirum Pharmaceuticals, Inc. | $MIRM | Peetz Christopher | PRESIDENT AND CEO | S | Common Stock | 5209 | $28.03 | 311,695.0000 | 40,885,124 | 1.64% | 0.01% |