Summary
Updated Aug 31, 2026
Mark Brosius is EVP & Chief Mfg and Supply Cha of INTUITIVE SURGICAL INC (ISRG). 21 SEC Form 4 filings on record going back to 2024, most recently on 21 August 2026. Most recent open-market trade: sold $29K of ISRG on 21 August 2026. Lifetime open-market sales: $4.70M.
Recent Transactions
20Every recent SEC Form 4 transaction Mark Brosius has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Mark Brosius go back to 2024: 21 primary Form 4 filings, an average of 7.0 per year. 34 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 Mark Brosius 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.
- Gary S. Guthart - $48.79M of ISRG open-market activity in the last 12 months
- David J. Rosa - $13.41M of ISRG open-market activity in the last 12 months
- Myriam Curet - $8.38M of ISRG open-market activity in the last 12 months
- Henry L. Charlton - $7.96M of ISRG open-market activity in the last 12 months
- Iman Jeddi - $2.37M of ISRG open-market activity in the last 12 months
- Brian Edward Miller - $2.01M of ISRG 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 Mark Brosius?
Mark Brosius is a corporate insider, tracked as EVP & Chief Mfg and Supply Cha of INTUITIVE SURGICAL INC (ISRG). InsiderAlpha holds 21 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 Mark Brosius submitted recently?
6 primary Form 4 filings in the last 90 days, covering 1 company.
Has Mark Brosius been buying or selling stock?
Recorded transactions: 0 open-market purchases and 42 open-market sales ($4.70M) across all tracked filings.
Where can I see all of Mark Brosius'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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