Intuitive Surgical (NASDAQ: ISRG) EVP sells under 10b5-1 plan
Intuitive Surgical (ISRG) EVP Mark Brosius sold 154 shares of common stock in two transactions on August 20 and 21, 2026, at $396.37 and $375.57 per share. The sales were made under a pre-arranged 10b5-1 trading plan, which expires on February 14, 2027. Brosius now holds 881 shares directly.
How this was made
The 30-second read
Why it matters
The disclosed sale is routine and small; no material impact on ISRG valuation.
Market read
Routine insider sale with limited trading relevance.
What to watch
The 10b5‑1 plan expiration in Feb 2027 may lead to future sales; monitor for follow‑on filings.
Background
Form 4 filings disclose insider trades; 10b5‑1 plans allow pre‑scheduled sales to avoid insider‑trading concerns.
Ticker impact
Executive VP Mark Brosius sold 154 shares of ISRG common stock in two open‑market transactions on Aug 20‑21 2026 under a 10b5‑1 plan.
Minimal impact; no immediate price change expected.
The sale size is modest relative to market cap and disclosed via a Form 4, which is a routine filing.
Market effects
None; the sale does not signal broader trends in the medical‑device sector.
None; limited to US investors tracking ISRG.
Low; isolated insider transaction.
Counterpoint
If the insider is reducing exposure ahead of upcoming earnings, it could hint at concerns.
Key entities
- ExecutiveMark Brosius
Executive Vice President and Chief Manufacturing & Supply Chain Officer at Intuitive Surgical.





