Summary
Updated Aug 31, 2026
John C.M. Farquhar is Chief Executive Officer, Director of Heartflow, Inc. (HTFL). 17 SEC Form 4 filings on record going back to 2025, most recently on 25 August 2026. Most recent open-market trade: sold $1.36M of HTFL on 25 August 2026. Lifetime open-market sales: $9.12M.
Recent Transactions
20Every recent SEC Form 4 transaction John C.M. Farquhar has reported, most recent first.
Trading Pattern
InsiderAlpha's records for John C.M. Farquhar go back to 2025: 17 primary Form 4 filings, an average of 8.5 per year. 16 recorded transactions carry a Rule 10b5-1 flag, meaning they were pre-scheduled under a written trading plan rather than discretionary.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies John C.M. Farquhar 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.
- Bain Capital Life Sciences Investors, LLC - $115.00M of HTFL open-market activity in the last 12 months
- Campbell Rogers - $5.72M of HTFL open-market activity in the last 12 months
- Jeffrey C. Lightcap - $1.05M of HTFL open-market activity in the last 12 months
- Julie A. Cullivan - $447K of HTFL 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 John C.M. Farquhar?
John C.M. Farquhar is a corporate insider, tracked as Chief Executive Officer, Director of Heartflow, Inc. (HTFL). InsiderAlpha holds 17 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 John C.M. Farquhar submitted recently?
9 primary Form 4 filings in the last 90 days, covering 1 company.
Has John C.M. Farquhar been buying or selling stock?
Recorded transactions: 0 open-market purchases and 12 open-market sales ($9.12M) across all tracked filings.
Where can I see all of John C.M. Farquhar'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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