Patrick J Heron insider trades: Mirum Pharmaceuticals (MIRM) stock buys and sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Patrick reports to the SEC
and 14 more companies
Open-market buys and sales
44 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Jan 23, 2026 | MIRM | ↑ Buy | 131,425 | $68.48 | $9.0M | By Frazier Life Sciences X, L.P. | Jan 27, 2026 (4d) |
| Sep 26, 2025 | MBX | ↑ Buy | 666,666 | $18.00 | $12.0M | By Frazier Life Sciences X, L.P. | Sep 30, 2025 (4d) |
| Jun 13, 2025 | ARQT | ↑ Buy | 2,646 | $13.08 | $35K | By Frazier Life Sciences X, L.P. | Jun 17, 2025 (4d) |
| Jun 5, 2025 | ARQT | ↑ Buy | 2,268 | $13.34 | $30K | By Frazier Life Sciences X, L.P. | Jun 6, 2025 (1d) |
| May 22, 2025 | ARQT | ↑ Buy | 5,040 | $13.65 | $69K | By Frazier Life Sciences X, L.P. | May 23, 2025 (1d) |
| May 15, 2025 | ARQT | ↑ Buy | 2,520 | $13.62 | $34K | By Frazier Life Sciences X, L.P. | May 19, 2025 (4d) |
| May 14, 2025 | ARQT | ↑ Buy | 8,674 | $13.76 | $119K | By Frazier Life Sciences X, L.P. | May 15, 2025 (1d) |
| May 9, 2025 | ARQT | ↑ Buy | 6,300 | $13.60 | $86K | By Frazier Life Sciences X, L.P. | May 13, 2025 (4d) |
| Mar 17, 2025 | MIRM | ↑ Buy | 549 | $44.11 | $24K | By Frazier Life Sciences X, L.P. | Mar 18, 2025 (1d) |
| Mar 11, 2025 | MIRM | ↑ Buy | 2,298 | $43.31 | $100K | By Frazier Life Sciences X, L.P. | Mar 12, 2025 (1d) |
| Mar 7, 2025 | MIRM | ↑ Buy | 1,915 | $43.69 | $84K | By Frazier Life Sciences X, L.P. | Mar 10, 2025 (3d) |
| Mar 5, 2025 | MIRM | ↑ Buy | 1,602 | $45.40 | $73K | By Frazier Life Sciences X, L.P. | Mar 6, 2025 (1d) |
| Sep 18, 2024 | MIRM | ↑ Buy | 115 | $37.40 | $4K | By Frazier Life Sciences X, L.P. | Sep 20, 2024 (2d) |
| Sep 16, 2024 | MBX | ↑ Buy | 625,000 | $16.00 | $10.0M | By Frazier Life Sciences X, L.P. | Sep 17, 2024 (1d) |
| Sep 6, 2024 | MIRM | ↑ Buy | 230 | $41.58 | $10K | By Frazier Life Sciences X, L.P. | Sep 10, 2024 (4d) |
| Apr 4, 2024 | HLVX | ↑ Buy | 8,850 | $14.50 | $128K | Direct | Apr 8, 2024 (4d) |
| Mar 4, 2024 | ARQT | ↑ Buy | 21,052 | $9.50 | $200K | By Frazier Life Sciences VIII, L.P. | Mar 6, 2024 (2d) |
| Nov 9, 2023 | MIRM | ↑ Buy | 2,910 | $28.30 | $82K | By Frazier Life Sciences X, L.P. | Nov 14, 2023 (5d) |
| Oct 24, 2023 | ARQT | ↑ Buy | 80,000 | $2.50 | $200K | Direct | Oct 26, 2023 (2d) |
| Sep 13, 2023 | MIRM | ↑ Buy | 2,625 | $31.02 | $81K | By Frazier Life Sciences X, L.P. | Sep 15, 2023 (2d) |
| Sep 12, 2023 | MIRM | ↑ Buy | 8,437 | $30.44 | $257K | By Frazier Life Sciences X, L.P. | Sep 13, 2023 (1d) |
| Aug 31, 2023 | MIRM | ↑ Buy | 147,991 | $26.25 | $3.9M | By Frazier Life Sciences X, L.P. | Sep 5, 2023 (5d) |
| Aug 5, 2022 | ARQT | ↑ Buy | 250,000 | $20.00 | $5.0M | Direct | Aug 9, 2022 (4d) |
| May 3, 2022 | HLVX | ↑ Buy | 1,764,706 | $17.00 | $30.0M | Direct | May 3, 2022 (0d) |
| Feb 11, 2022 | ALPN | ↑ Buy | 112,665 | $7.10 | $800K | Direct | Feb 15, 2022 (4d) |
| Jul 20, 2021 | IMGO | ↑ Buy | 187,500 | $16.00 | $3.0M | Indirect | Jul 20, 2021 (0d) |
| Dec 11, 2020 | FLAC | ↑ Buy | 1,000,000 | $10.00 | $10.0M | Direct | Dec 11, 2020 (0d) |
| Oct 20, 2020 | TARS | ↑ Buy | 312,500 | $16.00 | $5.0M | Direct | Oct 20, 2020 (0d) |
| Jun 16, 2020 | PCVX | ↑ Buy | 250,000 | $16.00 | $4.0M | By Frazier Life Sciences VIII, L.P. | Jun 16, 2020 (0d) |
| Mar 3, 2020 | PASG | ↑ Buy | 550,000 | $18.00 | $9.9M | By Frazier Life Sciences IX, L.P. | Mar 3, 2020 (0d) |
| Feb 4, 2020 | ARQT | ↑ Buy | 500,000 | $17.00 | $8.5M | By: Frazier Life Sciences VIII, L.P. | Feb 6, 2020 (2d) |
| Jan 9, 2020 | ETTX | ↓ Sell | 50,000 | $5.00 | $250K | Direct | Jan 13, 2020 (4d) |
| Oct 29, 2019 | PHAT | ↑ Buy | 1,052,631 | $19.00 | $20.0M | Direct | Oct 30, 2019 (1d) |
| Jul 22, 2019 | MIRM | ↑ Buy | 450,000 | $15.00 | $6.8M | By Frazier Life Sciences IX, L.P. | Jul 24, 2019 (2d) |
| Jan 18, 2019 | ALPN | ↑ Buy | 372,439 | $5.37 | $2.0M | Direct | Jan 22, 2019 (4d) |
| Sep 28, 2018 | ETTX | ↑ Buy | 375,887 | $15.00 | $5.6M | Direct | Oct 2, 2018 (4d) |
| Jun 25, 2018 | APTX | ↑ Buy | 150,000 | $16.00 | $2.4M | Direct | Jun 26, 2018 (1d) |
| May 30, 2018 | ITRM | ↑ Buy | 354,949 | $13.00 | $4.6M | By Frazier Healthcare VII, L.P. | May 30, 2018 (0d) |
| May 30, 2018 | ITRM | ↑ Buy | 101,150 | $13.00 | $1.3M | By Frazier Healthcare VII-A, L.P. | May 30, 2018 (0d) |
| Jan 31, 2017 | ANAB | ↑ Buy | 400,000 | $15.00 | $6.0M | Indirect | Jan 31, 2017 (0d) |
| Jan 31, 2017 | ANAB | ↑ Buy | 311,291 | $15.00 | $4.7M | Direct | Jan 31, 2017 (0d) |
| Jan 31, 2017 | ANAB | ↑ Buy | 88,709 | $15.00 | $1.3M | Indirect | Jan 31, 2017 (0d) |
| May 12, 2015 | COLL | ↑ Buy | 150,000 | $12.00 | $1.8M | By Frazier Healthcare VI, L.P. | May 14, 2015 (2d) |
| Apr 20, 2015 | CDTX | ↑ Buy | 200,000 | $16.00 | $3.2M | By limited partnership | Apr 22, 2015 (2d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other MIRM insiders
Open-market trades in the last 12 months
About Patrick J Heron's insider trades
Patrick J Heron is an insider at Mirum Pharmaceuticals (MIRM). Since Apr 20, 2015, Patrick has reported 43 open-market purchases worth $172.4M and 1 sale worth $250K on SEC Form 4. In the last 12 months: 1 buy ($9.0M).
Their filings also include grants and awards (37 filings), conversions (18 filings), other transactions (7 filings), option exercises (6 filings). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every MIRM insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.