Summary
Updated Aug 31, 2026
Patrick J. Heron files SEC Form 4 reports at Mirum Pharmaceuticals, Inc. (MIRM). 6 SEC Form 4 filings on record going back to 2025, most recently on 18 June 2026. Most recent open-market trade: bought $9.00M of MIRM on 27 January 2026. Lifetime open-market purchases: $21.00M.
Recent Transactions
4Every recent SEC Form 4 transaction Patrick J. Heron has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Patrick J. Heron go back to 2025: 6 primary Form 4 filings, an average of 3.0 per year. The typical open-market purchase is $10.50M (2 buys totaling $21.00M). The largest single buy on record is $12.00M of MBX in 2025. No transaction on record carries a Rule 10b5-1 flag - the filings look discretionary rather than pre-scheduled, which makes their timing more informative as a signal.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies Patrick J. Heron files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- Christopher Peetz - $13.33M of MIRM open-market activity in the last 12 months
- Michael G. Grey - $7.20M of MIRM open-market activity in the last 12 months
- Todd Watanabe - $5.50M of ARQT open-market activity in the last 12 months
- Jolanda Howe - $5.49M of MIRM open-market activity in the last 12 months
- Eric Bjerkholt - $3.31M of MIRM open-market activity in the last 12 months
- Salomon Azoulay - $2.72M of MBX open-market activity in the last 12 months
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Frequently Asked Questions
Who is Patrick J. Heron?
Patrick J. Heron is a corporate insider of Mirum Pharmaceuticals, Inc. (MIRM). InsiderAlpha holds 6 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has Patrick J. Heron submitted recently?
4 primary Form 4 filings in the last 90 days, covering 3 companies.
Has Patrick J. Heron been buying or selling stock?
Recorded transactions: 2 open-market purchases ($21.00M) and 0 open-market sales across all tracked filings.
Where can I see all of Patrick J. Heron's SEC filings?
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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