undamentalytics Newsletter

Intuitive Surgical insider trading

Every open-market purchase and sale by Intuitive Surgical's officers, directors and largest shareholders since November 4, 2021, and what the share price did next.

No insider has bought shares on the open market in five years.

Insider purchase Insider sale Marker size reflects trade value. Weekly closes adjusted for splits; may be delayed.
Intuitive Surgical insider open-market trades
DateInsiderTrade SharesPriceValue 1M after 3M after 6M after

From insiders' Form 4 filings with the SEC: open-market purchases and sales only (awards, option exercises and shares withheld for tax are excluded), combined to one line per insider per day. "Plan" marks trades the filing says were made under a pre-set Rule 10b5-1 trading plan, which are scheduled in advance. Price changes run from the close on the trade date; hover a figure for the change relative to the S&P 500. Past moves don't predict future ones.

Does following Intuitive Surgical’s insiders pay?

From January 27, 2010 to November 12, 2019, 18 insiders reported 2 open-market purchases and 127 sales not made under a pre-set plan in Intuitive Surgical. Twelve months after each purchase was reported, the shares were +43.9% against the S&P 500 on average (median +43.9%), over 2 purchases with a full year of prices; 100% beat the index. After sales, the shares moved +8.3% against the index over 12 months (a negative figure means selling was the right call). That rests on fewer than 20 purchases, too few to read much into. Buying each purchase the day after it was reported, an equal amount each, held 12 months or until that insider reported a sale, would have turned $10,000 on September 15, 2010 into $18,380 by November 2, 2026, +3.9% a year. It held shares 7% of the time; the S&P 500 on those same days, with Treasury bills otherwise, made $13,686 (+2.0% a year), and held throughout $89,070 (+14.6%).

$0$25.0k$50.0k$75.0k 201020122014201620182020202220242026 $89.1k$18.4k$13.7k
Copying Intuitive Surgical's insidersS&P 500, same days investedS&P 500, held throughout $10,000 copying every open-market purchase by Intuitive Surgical's insiders from September 15, 2010, before costs and taxes, marked weekly. Uninvested money earns the Treasury bill rate; the portfolio held shares 7% of the time.
Intuitive Surgical: each insider's record
InsiderRolePurchases12 months after their purchasesBeat the S&P 500Sales12 months after their salesLatest report
Smith Lonnie M Chairman of the Board 0 — — 28 −1.8% (28) November 12, 2019
Duggan Robert W Director 0 — — 20 +7.6% (20) May 4, 2011
Morales Colin GM & SVP Secondary Mkt Equip & 0 — — 13 +13.3% (13) February 8, 2017
Halvorson Eric H Director 0 — — 9 −0.3% (9) April 26, 2016
Mcnamara Jerome J EVP da Vinci WW Sales & Mktg 0 — — 9 +5.2% (9) October 24, 2011
Levy Alan J Director 0 — — 7 +17.4% (7) August 5, 2016
Meltzer Mark J SVP & General Counsel 0 — — 6 +12.9% (6) September 8, 2011
Curet Myriam EVP & Chief Medical Officer 0 — — 5 +22.2% (5) May 15, 2018
Mohr Marshall SVP & CFO 0 — — 5 +11.7% (5) July 22, 2011
Stalk George Jr Director 0 — — 5 +24.3% (5) May 4, 2016
Johnson Amal M Director 2 +43.9% (2) 100% 2 +19.8% (2) April 26, 2016
Loop Floyd D Md Director 0 — — 4 +15.3% (4) October 31, 2014
Rosa David J. Sr VP Emerging Procedures & Te 0 — — 4 −7.7% (4) October 29, 2012
Samath Jamie VP & Principal Accounting Offi 0 — — 4 +6.5% (4) March 14, 2016
Brogna Salvatore EVP - Product Operations 0 — — 2 +44.3% (2) June 3, 2016
Grossman D Keith Director 0 — — 2 −20.1% (2) April 23, 2010
Castello Augusto V. SVP Product Ops 0 — — 1 +53.0% (1) May 6, 2011
Rubash Mark J Director 0 — — 1 +44.6% (1) February 16, 2011

Moves are the shares’ return including dividends minus the S&P 500’s, from the close on the first trading day after each report; the number of trades with a finished 12-month window is in brackets. Green means the trade went the insider’s way (a purchase ahead of the index, a sale followed by the shares trailing it). A trade reported both by a director or officer and by a fund or company they are linked to counts once here, under the person. Purchases count only where the share price actually traded was at least $5. These figures describe what the shares did, not why anyone traded. Insiders across all companies.

When several insiders traded Intuitive Surgical

Months when 2 or more insiders became net buyers, or 3 or more net sellers, of Intuitive Surgical in reports dated in the 91 days before the month end, and how the stock did against the S&P 500 from that month end. After 7 selling crowds, −3.0%. One company's history is too short to judge by; the test across every company is the better guide.

MonthCrowd3 months on, vs S&P 5006 months12 months
March 31, 20164 selling+8.4%+12.9%+10.1%
May 29, 20153 selling+10.9%+6.0%+28.8%
November 28, 20144 selling−4.1%−6.6%−2.3%
November 30, 20123 selling−9.9%−22.1%−58.8%
January 31, 20115 selling+3.4%+21.0%+38.2%
August 31, 20104 selling−14.9%−4.1%+25.0%
April 30, 20108 selling−2.2%−27.8%−20.1%

Colours show whether the crowd was right: green when buyers were followed by a rise above the index, or sellers by a fall below it. Total returns from the month end; past patterns are not a forecast.

← Back to Intuitive Surgical · Funds · Politicians