Summary
Updated Aug 31, 2026
Glendon E. French III is President and CEO of Pulmonx Corp (LUNG). 6 SEC Form 4 filings on record going back to 2024, most recently on 3 June 2026. Most recent open-market trade: sold $21K of LUNG on 3 June 2026. Lifetime open-market sales: $461K.
Recent Transactions
12Every recent SEC Form 4 transaction Glendon E. French III has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Glendon E. French III go back to 2024: 6 primary Form 4 filings, an average of 2.0 per year. 2 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 Glendon E. French III 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.
- David Aaron Lehman - $72K of LUNG open-market activity in the last 12 months
- Geoffrey Beran Rose - $44K of LUNG open-market activity in the last 12 months
- Srikanth Radhakrishnan - $37K of LUNG open-market activity in the last 12 months
- Steven S. Williamson - $15K of LUNG open-market activity in the last 12 months
- Mehul Joshi - $13K of LUNG 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 Glendon E. French III?
Glendon E. French III is a corporate insider, tracked as President and CEO of Pulmonx Corp (LUNG). InsiderAlpha holds 6 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has Glendon E. French III submitted recently?
1 primary Form 4 filing in the last 90 days, covering 1 company.
Has Glendon E. French III been buying or selling stock?
Recorded transactions: 0 open-market purchases and 10 open-market sales ($461K) across all tracked filings.
Where can I see all of Glendon E. French III'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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