Why Intuitive Surgical (ISRG) Stock Is Down Today

Intuitive Surgical (ISRG) is down 4.1% today. Here is some analysis on what might have caused this price movement.

Analysis: The catalyst appears unclear, with no obvious new company-specific announcement tied to today’s drop. This could be because investors are reacting to a mix of broader market weakness, lingering valuation pressure on medical-technology names, and continued focus on procedure-growth expectations after the company’s last earnings report.

Details:

U.S. stocks traded lower on September 8, 2026 as higher oil prices and geopolitical tension weighed on risk appetite, creating a tougher backdrop for growth shares.

Intuitive Surgical does not appear to have a scheduled earnings release or major fresh filing immediately driving the move, which makes a market- or sentiment-led decline more likely.

The company’s second-quarter 2026 results were strong, with revenue, earnings, and cash generation rising, so today’s decline does not look tied to a newly reported operational setback.

Investors have also been debating whether ISRG still deserves a premium valuation, which can make the stock more sensitive when markets turn defensive.

Sources:

Intuitive Surgical Investor Relations, SEC, Associated Press

Disclaimer: This price movement analysis was generated with the help of AI. Please double-check the information provided for mistakes.

$ISRG Insider Trading Activity

$ISRG insiders have traded $ISRG stock on the open market 29 times in the past 6 months. Of those trades, 0 have been purchases and 29 have been sales.

Here’s a breakdown of recent trading of $ISRG stock by insiders over the last 6 months:

GARY S GUTHART sold 10,000 shares for an estimated $4,000,000
IMAN JEDDI (SVP & GM da Vinci Platforms &) sold 5,625 shares for an estimated $2,365,593
AMY L LADD has made 0 purchases and 4 sales selling 1,091 shares for an estimated $471,789.
GARY LOEB (EVP & Chief Legal and Complian) has made 0 purchases and 2 sales selling 800 shares for an estimated $321,256.
MARK BROSIUS (EVP & Chief Mfg and Supply Cha) has made 0 purchases and 20 sales selling 732 shares for an estimated $288,056.
MYRIAM CURET (EVP & Chief Medical Officer) sold 105 shares for an estimated $51,864

To track insider transactions, check out Quiver Quantitative's insider trading dashboard. You can access data on insider stock transactions through the Quiver Quantitative API insider transaction endpoint.

$ISRG Hedge Fund Activity

We have seen 1,070 institutional investors add shares of $ISRG stock to their portfolio, and 1,312 decrease their positions in their most recent quarter.

Here are some of the largest recent moves:

INVESCO LTD. added 8,106,133 shares (+216.9%) to their portfolio in Q2 2026, for an estimated $3,223,646,971
JPMORGAN CHASE & CO added 4,231,033 shares (+inf%) to their portfolio in Q2 2026, for an estimated $1,682,597,203
SIXTH STREET PARTNERS MANAGEMENT COMPANY, L.P. added 2,802,568 shares (+inf%) to their portfolio in Q2 2026, for an estimated $1,114,525,242
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP added 1,638,953 shares (+77.8%) to their portfolio in Q2 2026, for an estimated $651,778,829
PRICE T ROWE ASSOCIATES INC /MD/ removed 1,263,437 shares (-10.1%) from their portfolio in Q2 2026, for an estimated $502,443,626
FMR LLC removed 1,226,104 shares (-22.4%) from their portfolio in Q2 2026, for an estimated $487,597,038
WINSLOW CAPITAL MANAGEMENT, LLC removed 1,152,910 shares (-99.4%) from their portfolio in Q2 2026, for an estimated $458,489,248

To track hedge funds' stock portfolios, check out Quiver Quantitative's institutional holdings dashboard. You can access data on hedge funds moves and 13F filings through the Quiver Quantitative API 13F endpoint.

$ISRG Government Contracts

We have seen $272,040 of award payments to $ISRG over the last year.

Here are some of the awards which we have have seen pay out the most over the last year:

INTUITIVE DAVINCI ROBOT MAINTENANCE SERVICE: $172,000

To track government contracts to publicy traded companies, check out Quiver Quantitative's government contracts dashboard. You can access data on government contracts through the Quiver Quantitative API government contracts endpoint.

$ISRG Congressional Stock Trading

Members of Congress have traded $ISRG stock 1 times in the past 6 months. Of those trades, 1 have been purchases and 0 have been sales.

Here’s a breakdown of recent trading of $ISRG stock by members of Congress over the last 6 months:

SENATOR ALAN ARMSTRONG purchased up to $15,000 on 03/27.

To track congressional stock trading, check out Quiver Quantitative's congressional trading dashboard. You can access data on congressional stock trades through the Quiver Quantitative API Congress trades endpoint.

$ISRG Price Targets

Multiple analysts have issued price targets for $ISRG recently. We have seen 12 analysts offer price targets for $ISRG in the last 6 months, with a median target of $573.5.

Here are some recent targets:

Vik Chopra from BMO Capital set a target price of $518.0 on 07/09/2026
Vijay Kumar from Evercore ISI Group set a target price of $430.0 on 07/06/2026
Travis Steed from B of A Securities set a target price of $520.0 on 05/18/2026
Matt Miksic from Barclays set a target price of $651.0 on 04/23/2026
Ryan Zimmerman from BTIG set a target price of $574.0 on 04/22/2026
Mike Kratky from Leerink Partners set a target price of $573.0 on 04/22/2026
David Rescott from Baird set a target price of $610.0 on 04/22/2026

This article is not financial advice. See Quiver Quantitative's disclaimers for more information. Note that there may be inaccuracies due to mistakes in ticker-mapping, and other anomalies.