Insider · CIK 1614740
Christopher Peetz
- CEO at Mirum Pharmaceuticals MIRM: 6 buys, 33 sales
- Director at Arcutis Biotherapeutics ARQT: 0 buys, 0 sales
- Director at Company with CIK 1626199: 1 buys, 1 sales
Full history from EDGAR: holdings now, every transaction and Form 144 planned sales
Open-market buys7
Open-market sales34
Bought$314K
Sold$27.6M
Every trade, with what the company filed around it
Open-market buys and sales as each Form 4 states them, newest first.
How these figures work
Notes on each row are as each Form 4 states them, next to SEC Tracker's own records of the company's filings and other insiders' buys. Holding after is what the filing reports they held after the trade, with the change in their holding.
| Date | Company | Trade | Value | Holding after | Notes |
|---|---|---|---|---|---|
| Nov 4, 2026 | Mirum Pharmaceuticals MIRM | Option exercise 20,000 sh at $2.94 The same day as a Form 144 notice of a planned insider sale filed Nov 4, 2026. | $59K | 226,637 | The same day as a Form 144 notice of a planned insider sale filed Nov 4, 2026. |
| Nov 4, 2026 | Mirum Pharmaceuticals MIRM | Sold (10b5-1) 20,000 sh at $90.00 The filing says this sale was under a Rule 10b5-1 plan set up in advance. The same day as a Form 144 notice of a planned insider sale filed Nov 4, 2026. | $1.8M | 206,637 −9% | The filing says this sale was under a Rule 10b5-1 plan set up in advance. The same day as a Form 144 notice of a planned insider sale filed Nov 4, 2026. |
| Oct 6, 2026 | Mirum Pharmaceuticals MIRM | Option exercise 5,305 sh at $19.19 8 days after the company's 8-K filed Sep 28, 2026. | $102K | 199,745 | 8 days after the company's 8-K filed Sep 28, 2026. |
| Oct 6, 2026 | Mirum Pharmaceuticals MIRM | Option exercise 6,892 sh at $15.87 8 days after the company's 8-K filed Sep 28, 2026. | $109K | 206,637 | 8 days after the company's 8-K filed Sep 28, 2026. |
| Sep 1, 2026 | Mirum Pharmaceuticals MIRM | Option exercise 30,000 sh at $2.94 The same day as a Form 144 notice of a planned insider sale filed Sep 1, 2026. | $88K | 224,440 | The same day as a Form 144 notice of a planned insider sale filed Sep 1, 2026. |
| Sep 1, 2026 | Mirum Pharmaceuticals MIRM | Sold (10b5-1) 8,312 sh at $98.08 The filing says this sale was under a Rule 10b5-1 plan set up in advance. The same day as a Form 144 notice of a planned insider sale filed Sep 1, 2026. | $815K | 216,128 −4% | The filing says this sale was under a Rule 10b5-1 plan set up in advance. The same day as a Form 144 notice of a planned insider sale filed Sep 1, 2026. |
| Sep 1, 2026 | Mirum Pharmaceuticals MIRM | Sold (10b5-1) 21,688 sh at $98.91 The filing says this sale was under a Rule 10b5-1 plan set up in advance. The same day as a Form 144 notice of a planned insider sale filed Sep 1, 2026. | $2.1M | 194,440 −10% | The filing says this sale was under a Rule 10b5-1 plan set up in advance. The same day as a Form 144 notice of a planned insider sale filed Sep 1, 2026. |
| Aug 10, 2026 | Mirum Pharmaceuticals MIRM | Option exercise 20,000 sh at $2.94 The same day as a Form 144 notice of a planned insider sale filed Aug 10, 2026. | $59K | 214,309 | The same day as a Form 144 notice of a planned insider sale filed Aug 10, 2026. |
| Aug 10, 2026 | Mirum Pharmaceuticals MIRM | Sold (10b5-1) 11,683 sh at $98.51 The filing says this sale was under a Rule 10b5-1 plan set up in advance. The same day as a Form 144 notice of a planned insider sale filed Aug 10, 2026. | $1.2M | 202,626 −5% | The filing says this sale was under a Rule 10b5-1 plan set up in advance. The same day as a Form 144 notice of a planned insider sale filed Aug 10, 2026. |
| Aug 10, 2026 | Mirum Pharmaceuticals MIRM | Sold (10b5-1) 6,017 sh at $99.25 The filing says this sale was under a Rule 10b5-1 plan set up in advance. The same day as a Form 144 notice of a planned insider sale filed Aug 10, 2026. | $597K | 196,609 −3% | The filing says this sale was under a Rule 10b5-1 plan set up in advance. The same day as a Form 144 notice of a planned insider sale filed Aug 10, 2026. |
| Aug 10, 2026 | Mirum Pharmaceuticals MIRM | Sold (10b5-1) 2,300 sh at $100.14 The filing says this sale was under a Rule 10b5-1 plan set up in advance. The same day as a Form 144 notice of a planned insider sale filed Aug 10, 2026. | $230K | 194,309 −1% | The filing says this sale was under a Rule 10b5-1 plan set up in advance. The same day as a Form 144 notice of a planned insider sale filed Aug 10, 2026. |
| Jul 15, 2026 | Arcutis Biotherapeutics ARQT | Award 4,315 sh The same day as a Form 144 notice of a planned insider sale filed Jul 15, 2026. | 4,315 | The same day as a Form 144 notice of a planned insider sale filed Jul 15, 2026. | |
| Jul 6, 2026 | Mirum Pharmaceuticals MIRM | Option exercise 20,000 sh at $2.94 The same day as a Form 144 notice of a planned insider sale filed Jul 6, 2026. | $59K | 214,309 | The same day as a Form 144 notice of a planned insider sale filed Jul 6, 2026. |
| Jul 6, 2026 | Mirum Pharmaceuticals MIRM | Sold (10b5-1) 12,134 sh at $121.65 The filing says this sale was under a Rule 10b5-1 plan set up in advance. The same day as a Form 144 notice of a planned insider sale filed Jul 6, 2026. | $1.5M | 202,175 −6% | The filing says this sale was under a Rule 10b5-1 plan set up in advance. The same day as a Form 144 notice of a planned insider sale filed Jul 6, 2026. |
| Jul 6, 2026 | Mirum Pharmaceuticals MIRM | Sold (10b5-1) 4,181 sh at $122.34 The filing says this sale was under a Rule 10b5-1 plan set up in advance. The same day as a Form 144 notice of a planned insider sale filed Jul 6, 2026. | $512K | 197,994 −2% | The filing says this sale was under a Rule 10b5-1 plan set up in advance. The same day as a Form 144 notice of a planned insider sale filed Jul 6, 2026. |
| Jul 6, 2026 | Mirum Pharmaceuticals MIRM | Sold (10b5-1) 1,975 sh at $123.74 The filing says this sale was under a Rule 10b5-1 plan set up in advance. The same day as a Form 144 notice of a planned insider sale filed Jul 6, 2026. | $244K | 196,019 −1% | The filing says this sale was under a Rule 10b5-1 plan set up in advance. The same day as a Form 144 notice of a planned insider sale filed Jul 6, 2026. |
| Jul 6, 2026 | Mirum Pharmaceuticals MIRM | Sold (10b5-1) 1,710 sh at $124.79 The filing says this sale was under a Rule 10b5-1 plan set up in advance. The same day as a Form 144 notice of a planned insider sale filed Jul 6, 2026. | $213K | 194,309 −1% | The filing says this sale was under a Rule 10b5-1 plan set up in advance. The same day as a Form 144 notice of a planned insider sale filed Jul 6, 2026. |
| Jun 1, 2026 | Mirum Pharmaceuticals MIRM | Option exercise 30,000 sh at $2.94 The same day as a Form 144 notice of a planned insider sale filed Jun 1, 2026. | $88K | 224,309 | The same day as a Form 144 notice of a planned insider sale filed Jun 1, 2026. |
| Jun 1, 2026 | Mirum Pharmaceuticals MIRM | Sold (10b5-1) 2,602 sh at $94.64 The filing says this sale was under a Rule 10b5-1 plan set up in advance. The same day as a Form 144 notice of a planned insider sale filed Jun 1, 2026. | $246K | 221,707 −1% | The filing says this sale was under a Rule 10b5-1 plan set up in advance. The same day as a Form 144 notice of a planned insider sale filed Jun 1, 2026. |
| Jun 1, 2026 | Mirum Pharmaceuticals MIRM | Sold (10b5-1) 16,595 sh at $95.34 The filing says this sale was under a Rule 10b5-1 plan set up in advance. The same day as a Form 144 notice of a planned insider sale filed Jun 1, 2026. | $1.6M | 205,112 −7% | The filing says this sale was under a Rule 10b5-1 plan set up in advance. The same day as a Form 144 notice of a planned insider sale filed Jun 1, 2026. |
| Jun 1, 2026 | Mirum Pharmaceuticals MIRM | Sold (10b5-1) 6,926 sh at $96.15 The filing says this sale was under a Rule 10b5-1 plan set up in advance. The same day as a Form 144 notice of a planned insider sale filed Jun 1, 2026. | $666K | 198,186 −3% | The filing says this sale was under a Rule 10b5-1 plan set up in advance. The same day as a Form 144 notice of a planned insider sale filed Jun 1, 2026. |
| Jun 1, 2026 | Mirum Pharmaceuticals MIRM | Sold (10b5-1) 1,973 sh at $97.56 The filing says this sale was under a Rule 10b5-1 plan set up in advance. The same day as a Form 144 notice of a planned insider sale filed Jun 1, 2026. | $192K | 196,213 −1% | The filing says this sale was under a Rule 10b5-1 plan set up in advance. The same day as a Form 144 notice of a planned insider sale filed Jun 1, 2026. |
| Jun 1, 2026 | Mirum Pharmaceuticals MIRM | Sold (10b5-1) 1,021 sh at $98.20 The filing says this sale was under a Rule 10b5-1 plan set up in advance. The same day as a Form 144 notice of a planned insider sale filed Jun 1, 2026. | $100K | 195,192 −1% | The filing says this sale was under a Rule 10b5-1 plan set up in advance. The same day as a Form 144 notice of a planned insider sale filed Jun 1, 2026. |
| Jun 1, 2026 | Mirum Pharmaceuticals MIRM | Sold (10b5-1) 883 sh at $99.66 The filing says this sale was under a Rule 10b5-1 plan set up in advance. The same day as a Form 144 notice of a planned insider sale filed Jun 1, 2026. | $88K | 194,309 −<1% | The filing says this sale was under a Rule 10b5-1 plan set up in advance. The same day as a Form 144 notice of a planned insider sale filed Jun 1, 2026. |
| Mar 16, 2026 | Mirum Pharmaceuticals MIRM | Sold 40,985 sh at $91.98 The filing does not mark this sale as under a Rule 10b5-1 plan. The same day as a Form 144 notice of a planned insider sale filed Mar 16, 2026. | $3.8M | 194,309 −17% | The filing does not mark this sale as under a Rule 10b5-1 plan. The same day as a Form 144 notice of a planned insider sale filed Mar 16, 2026. |
| Mar 15, 2026 | Mirum Pharmaceuticals MIRM | Option exercise 25,000 sh 18 days after the company's 8-K filed Feb 25, 2026. | 185,294 | 18 days after the company's 8-K filed Feb 25, 2026. | |
| Mar 15, 2026 | Mirum Pharmaceuticals MIRM | Option exercise 50,000 sh 18 days after the company's 8-K filed Feb 25, 2026. | 235,294 | 18 days after the company's 8-K filed Feb 25, 2026. | |
| Feb 2, 2026 | Mirum Pharmaceuticals MIRM | Sold 9,108 sh at $103.30 The filing does not mark this sale as under a Rule 10b5-1 plan. The same day as a Form 144 notice of a planned insider sale filed Feb 2, 2026. | $941K | 160,294 −5% | The filing does not mark this sale as under a Rule 10b5-1 plan. The same day as a Form 144 notice of a planned insider sale filed Feb 2, 2026. |
| Jan 26, 2026 | Mirum Pharmaceuticals MIRM | Sold 6,831 sh at $96.19 The filing does not mark this sale as under a Rule 10b5-1 plan. The same day as the company's 8-K filed Jan 26, 2026. | $657K | 169,402 −4% | The filing does not mark this sale as under a Rule 10b5-1 plan. The same day as the company's 8-K filed Jan 26, 2026. |
| Jan 23, 2026 | Mirum Pharmaceuticals MIRM | Option exercise 12,500 sh 8 days after a Form 144 notice of a planned insider sale filed Jan 15, 2026. | 176,233 | 8 days after a Form 144 notice of a planned insider sale filed Jan 15, 2026. | |
| Jan 22, 2026 | Mirum Pharmaceuticals MIRM | Sold 7,098 sh at $93.33 The filing does not mark this sale as under a Rule 10b5-1 plan. 7 days after a Form 144 notice of a planned insider sale filed Jan 15, 2026. | $662K | 163,733 −4% | The filing does not mark this sale as under a Rule 10b5-1 plan. 7 days after a Form 144 notice of a planned insider sale filed Jan 15, 2026. |
| Jan 21, 2026 | Mirum Pharmaceuticals MIRM | Option exercise 12,797 sh 6 days after a Form 144 notice of a planned insider sale filed Jan 15, 2026. | 170,831 | 6 days after a Form 144 notice of a planned insider sale filed Jan 15, 2026. | |
| Dec 31, 2025 | Mirum Pharmaceuticals MIRM | Gift 21,070 sh 9 days after a Form 144 notice of a planned insider sale filed Dec 22, 2025. | 187,500 | 9 days after a Form 144 notice of a planned insider sale filed Dec 22, 2025. | |
| Nov 18, 2025 | Mirum Pharmaceuticals MIRM | Option exercise 19,133 sh at $19.24 1 day after the company's 8-K filed Nov 17, 2025. | $368K | 158,034 | 1 day after the company's 8-K filed Nov 17, 2025. |
| Aug 11, 2025 | Mirum Pharmaceuticals MIRM | Option exercise 40,000 sh at $2.94 The same day as a Form 144 notice of a planned insider sale filed Aug 11, 2025. | $117K | 178,641 | The same day as a Form 144 notice of a planned insider sale filed Aug 11, 2025. |
| Aug 11, 2025 | Mirum Pharmaceuticals MIRM | Sold (10b5-1) 40,000 sh at $62.00 The filing says this sale was under a Rule 10b5-1 plan set up in advance. The same day as a Form 144 notice of a planned insider sale filed Aug 11, 2025. | $2.5M | 138,641 −22% | The filing says this sale was under a Rule 10b5-1 plan set up in advance. The same day as a Form 144 notice of a planned insider sale filed Aug 11, 2025. |
| Aug 7, 2025 | Mirum Pharmaceuticals MIRM | Option exercise 40,000 sh at $2.94 1 day after the company's 8-K filed Aug 6, 2025. | $117K | 178,641 | 1 day after the company's 8-K filed Aug 6, 2025. |
| Aug 7, 2025 | Mirum Pharmaceuticals MIRM | Sold (10b5-1) 40,000 sh at $55.25 The filing says this sale was under a Rule 10b5-1 plan set up in advance. 1 day after the company's 8-K filed Aug 6, 2025. | $2.2M | 138,641 −22% | The filing says this sale was under a Rule 10b5-1 plan set up in advance. 1 day after the company's 8-K filed Aug 6, 2025. |
| Mar 17, 2025 | Mirum Pharmaceuticals MIRM | Sold 27,279 sh at $44.21 The filing does not mark this sale as under a Rule 10b5-1 plan. 13 days after a Form 144 notice of a planned insider sale filed Mar 4, 2025. | $1.2M | 138,641 −16% | The filing does not mark this sale as under a Rule 10b5-1 plan. 13 days after a Form 144 notice of a planned insider sale filed Mar 4, 2025. |
| Mar 15, 2025 | Mirum Pharmaceuticals MIRM | Option exercise 50,000 sh 11 days after a Form 144 notice of a planned insider sale filed Mar 4, 2025. | 165,920 | 11 days after a Form 144 notice of a planned insider sale filed Mar 4, 2025. | |
| Mar 3, 2025 | Mirum Pharmaceuticals MIRM | Option exercise 40,000 sh at $2.94 The same day as a Form 144 notice of a planned insider sale filed Mar 3, 2025. | $117K | 155,920 | The same day as a Form 144 notice of a planned insider sale filed Mar 3, 2025. |
| Mar 3, 2025 | Mirum Pharmaceuticals MIRM | Sold (10b5-1) 19,392 sh at $46.61 The filing says this sale was under a Rule 10b5-1 plan set up in advance. The same day as a Form 144 notice of a planned insider sale filed Mar 3, 2025. | $904K | 136,528 −12% | The filing says this sale was under a Rule 10b5-1 plan set up in advance. The same day as a Form 144 notice of a planned insider sale filed Mar 3, 2025. |
| Mar 3, 2025 | Mirum Pharmaceuticals MIRM | Sold (10b5-1) 20,608 sh at $47.19 The filing says this sale was under a Rule 10b5-1 plan set up in advance. The same day as a Form 144 notice of a planned insider sale filed Mar 3, 2025. | $972K | 115,920 −15% | The filing says this sale was under a Rule 10b5-1 plan set up in advance. The same day as a Form 144 notice of a planned insider sale filed Mar 3, 2025. |
| Feb 3, 2025 | Mirum Pharmaceuticals MIRM | Sold 9,102 sh at $48.22 The filing does not mark this sale as under a Rule 10b5-1 plan. 21 days after the company's 8-K filed Jan 13, 2025. | $439K | 115,920 −7% | The filing does not mark this sale as under a Rule 10b5-1 plan. 21 days after the company's 8-K filed Jan 13, 2025. |
| Jan 24, 2025 | Mirum Pharmaceuticals MIRM | Sold 6,837 sh at $47.92 The filing does not mark this sale as under a Rule 10b5-1 plan. 11 days after the company's 8-K filed Jan 13, 2025. | $328K | 125,022 −5% | The filing does not mark this sale as under a Rule 10b5-1 plan. 11 days after the company's 8-K filed Jan 13, 2025. |
| Jan 23, 2025 | Mirum Pharmaceuticals MIRM | Option exercise 12,500 sh 10 days after the company's 8-K filed Jan 13, 2025. | 131,859 | 10 days after the company's 8-K filed Jan 13, 2025. | |
| Jan 7, 2025 | Mirum Pharmaceuticals MIRM | Sold 7,489 sh at $42.82 The filing does not mark this sale as under a Rule 10b5-1 plan. 56 days after the company's 10-Q filed Nov 12, 2024. | $321K | 119,359 −6% | The filing does not mark this sale as under a Rule 10b5-1 plan. 56 days after the company's 10-Q filed Nov 12, 2024. |
| Nov 8, 2024 | Mirum Pharmaceuticals MIRM | Award 65 sh at $21.05 144 days after the company's 8-K filed Jun 17, 2024. | $1K | 126,848 | 144 days after the company's 8-K filed Jun 17, 2024. |
| Jul 23, 2024 | Mirum Pharmaceuticals MIRM | Option exercise 34,013 sh at $2.94 36 days after the company's 8-K filed Jun 17, 2024. | $100K | 126,783 | 36 days after the company's 8-K filed Jun 17, 2024. |
| May 20, 2024 | Company with CIK 1626199 | Returned to company 1,900 sh at $0.001 The same day as the company's S-8 POS filed May 20, 2024. | $2 | 0 | The same day as the company's S-8 POS filed May 20, 2024. |
| May 10, 2024 | Mirum Pharmaceuticals MIRM | Award 817 sh at $21.05 2 days after the company's 8-K filed May 8, 2024. | $17K | 92,770 | 2 days after the company's 8-K filed May 8, 2024. |
| Feb 2, 2024 | Mirum Pharmaceuticals MIRM | Sold 6,013 sh at $26.19 The filing does not mark this sale as under a Rule 10b5-1 plan. 17 days after the company's 8-K filed Jan 16, 2024. | $157K | 104,112 −5% | The filing does not mark this sale as under a Rule 10b5-1 plan. 17 days after the company's 8-K filed Jan 16, 2024. |
| Jan 8, 2024 | Mirum Pharmaceuticals MIRM | Sold 5,209 sh at $28.03 The filing does not mark this sale as under a Rule 10b5-1 plan. The same day as the company's 8-K filed Jan 8, 2024. | $146K | 110,125 −5% | The filing does not mark this sale as under a Rule 10b5-1 plan. The same day as the company's 8-K filed Jan 8, 2024. |
| Jul 3, 2023 | Mirum Pharmaceuticals MIRM | Sold 5,498 sh at $25.65 The filing does not mark this sale as under a Rule 10b5-1 plan. 20 days after the company's 8-K filed Jun 13, 2023. | $141K | 115,334 −5% | The filing does not mark this sale as under a Rule 10b5-1 plan. 20 days after the company's 8-K filed Jun 13, 2023. |
| May 10, 2023 | Mirum Pharmaceuticals MIRM | Award 1,256 sh at $16.92 6 days after the company's 8-K filed May 4, 2023. | $21K | 120,832 | 6 days after the company's 8-K filed May 4, 2023. |
| Jan 31, 2023 | Mirum Pharmaceuticals MIRM | Award 50,000 sh 22 days after the company's 8-K filed Jan 9, 2023. | 119,576 | 22 days after the company's 8-K filed Jan 9, 2023. | |
| Jan 9, 2023 | Mirum Pharmaceuticals MIRM | Sold 5,159 sh at $20.62 The filing does not mark this sale as under a Rule 10b5-1 plan. The same day as the company's 8-K filed Jan 9, 2023. | $106K | 91,953 −5% | The filing does not mark this sale as under a Rule 10b5-1 plan. The same day as the company's 8-K filed Jan 9, 2023. |
| Nov 10, 2022 | Mirum Pharmaceuticals MIRM | Award 49 sh at $17.05 | $835 | 69,576 | |
| May 10, 2022 | Mirum Pharmaceuticals MIRM | Award 1,500 sh at $13.57 | $20K | 69,527 | |
| Jan 6, 2022 | Mirum Pharmaceuticals MIRM | Award 40,000 sh | 68,027 | ||
| Nov 24, 2021 | Mirum Pharmaceuticals MIRM | Bought 7,000 sh at $14.40 | $101K | 28,027 +33% | |
| Oct 1, 2021 | Mirum Pharmaceuticals MIRM | Sold 3,672 sh at $19.26 The filing does not mark this sale as under a Rule 10b5-1 plan. | $71K | 21,027 −15% | The filing does not mark this sale as under a Rule 10b5-1 plan. |
| Sep 29, 2021 | Mirum Pharmaceuticals MIRM | Award 21,875 sh | 24,699 | ||
| Sep 23, 2021 | Company with CIK 1626199 | Bought 1,900 sh at $10.17 Their first shares, by the holdings the Form 4 states. Their first open-market buy here in SEC Tracker's records. One of 3 insiders who bought $19M over 7 days, within the 30-day window. | $19K | 1,900 | Their first shares, by the holdings the Form 4 states. Their first open-market buy here in SEC Tracker's records. One of 3 insiders who bought $19M over 7 days, within the 30-day window. |
| Sep 23, 2021 | Alpine Immune Sciences | Sold 1,900 sh at $10.17 The filing does not mark this sale as under a Rule 10b5-1 plan. | $19K | 1,900 −50% | The filing does not mark this sale as under a Rule 10b5-1 plan. |
| May 10, 2021 | Mirum Pharmaceuticals MIRM | Award 1,453 sh at $14.62 | $21K | 2,824 | |
| Dec 23, 2020 | Mirum Pharmaceuticals MIRM | Bought 5,000 sh at $18.70 | $93K | ||
| Nov 10, 2020 | Mirum Pharmaceuticals MIRM | Award 1,371 sh at $15.27 | $21K | 1,371 | |
| Sep 9, 2019 | Mirum Pharmaceuticals MIRM | Bought 4,320 sh at $11.14 One of 3 insiders who bought $281K over 12 days, within the 30-day window. | $48K | One of 3 insiders who bought $281K over 12 days, within the 30-day window. | |
| Sep 6, 2019 | Mirum Pharmaceuticals MIRM | Bought 4,750 sh at $10.91 Their first open-market buy here in SEC Tracker's records. One of 3 insiders who bought $281K over 12 days, within the 30-day window. | $52K | 192,250 +3% | Their first open-market buy here in SEC Tracker's records. One of 3 insiders who bought $281K over 12 days, within the 30-day window. |
Open-market trades are Form 4 transaction codes P (purchase) and S (sale). Planned sales are those the filing marks as made under a Rule 10b5-1 plan. A P-code buy at the offering price within a day of the company's FWP, 424B prospectus or offering 8-K is marked Bought in the offering and left out of open-market buy counts and cluster buys. Prices and values are as stated in each Form 4. Stock prices aren't shown on this page. Not investment advice.
Data on this page was fetched . The filing on SEC.gov is the record.