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sellModerate cluster of 310b5-1 plan

Mark Brosius sold $2.7M of ISRG

SVP & Chief Mfg and Supply Cha at INTUITIVE SURGICAL INC. 4,964 shares at an average of $547.47, traded Dec 12, 2025, filed Dec 15, 2025.

Warning score
40
Value
$2.7M
4,964 shares
Holdings after
443
-92% from before
From 52-week low
+26%
low $429.59, close $542.32
From 52-week high
-11%
high $610.45, as of Dec 12, 2025

Score components

  • Role
    Officer
    +15
  • Trade size
    $2.7M at market
    +25
  • Share of holdings sold
    Sold 92% of holdings
    +20
  • Cluster
    3 insiders selling within 14 days
    +15
  • Exercise and sell
    Shares came from an option exercise in the same filing
    -15
  • 10b5-1 plan
    Pre-scheduled under a 10b5-1 plan
    -20

What happened after comparable sells

Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.

This signal so far: 1m -2.3%, 3m -13.6%, 6m -25.6%.

Price around the trade, and since

From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.

ISRGOct 9, 2026 · close 423.96
Since filing Dec 15, 2025: -24.2%SPY +15.5% · excess -39.8%

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™

Rows in this filing

Every transaction in Form 4 0002010300-25-000004, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Dec 12, 2025MOption exercise
Common Stock10b5-1
+4,500$79.64$358k5,407Dec 15, 2025
Dec 12, 2025SOpen-market sale
Common Stock10b5-1
-4,500$547.36$2.5M907Dec 15, 2025
Dec 15, 2025SOpen-market sale
Common Stock10b5-1
-464$548.49$254k443Dec 15, 2025
Dec 12, 2025MOption exercise
Non-Qualified Stock Option (right to buy)derivative10b5-1
-4,500$0.00$00Dec 15, 2025

Related signals

Other insiders at INTUITIVE SURGICAL INC and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
24Weak
ISRGsell 210b5-1
INTUITIVE SURGICAL INC
Fredrik Widman
VP Corporate Controller
$408k
1,089 shares
-69%
3Weak
ISRGsell 210b5-1
INTUITIVE SURGICAL INC
Mark Brosius
EVP & Chief Mfg and Supply Cha
$17k
48 shares
-6%
3Weak
ISRGsell 210b5-1
INTUITIVE SURGICAL INC
Mark Brosius
EVP & Chief Mfg and Supply Cha
$25k
69 shares
-8%
22Weak
ISRGsell 410b5-1
INTUITIVE SURGICAL INC
Mark Brosius
EVP & Chief Mfg and Supply Cha
$59k
154 shares
-15%
24Weak
ISRGsell 410b5-1
INTUITIVE SURGICAL INC
Mark Brosius
EVP & Chief Mfg and Supply Cha
$91k
231 shares
-18%
35Weak
ISRGsell 410b5-1
INTUITIVE SURGICAL INC
Gary S Guthart
CEO
$4.0M
10,000 shares
-1%
42Moderate
ISRGsell 410b5-1
INTUITIVE SURGICAL INC
Amy L Ladd
director
$180k
472 shares
-73%
21Weak
ISRGsell 410b5-1
INTUITIVE SURGICAL INC
Gary Loeb
EVP & Chief Legal and Complian
$152k
400 shares
-7%
10Weak
ISRGsell 410b5-1
INTUITIVE SURGICAL INC
Mark Brosius
EVP & Chief Mfg and Supply Cha
$20k
56 shares
-4%
15Weak
ISRGsell 310b5-1
INTUITIVE SURGICAL INC
Mark Brosius
EVP & Chief Mfg and Supply Cha
$30k
84 shares
-6%

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.

Mark Brosius sold $2.7M of ISRG | InsiderTell