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DexCom Slides as Investors Appear to Take Risk Off Ahead of Earnings

Investivoq PriceTracker

DexCom, Inc. (DXCM) is down 6.6% today. Here is some analysis on what might have caused this price movement.

Analysis: The most likely driver appears to be a mix of pre-earnings caution and profit-taking rather than a single clearly negative company announcement. This could be because investors are trimming exposure ahead of the company’s scheduled third-quarter report, while a newly disclosed insider stock sale may have added to the pressure even though it was made under a prearranged trading plan.

Details:

  • The company has scheduled its third-quarter 2026 earnings release and conference call for October 29, which can make trading more volatile as investors reposition before results.
  • A Form 4 filed on October 19 showed the EVP and chief legal and compliance officer sold 1,700 shares on October 15 at $85.48 each.
  • The filing states the transaction was executed under a Rule 10b5-1 plan adopted in November 2025, which suggests an automatic sale rather than a discretionary trade tied to fresh operating developments.
  • The company also publicized favorable clinical data last week, so today’s weakness does not appear tied to a newly announced setback and may instead reflect sentiment and short-term positioning.

    • Sources:

    Dexcom Investor Relations, SEC, The New England Journal of Medicine

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

    $DXCM Insider Trading Activity

    DXCM Insider Trades

    $DXCM insiders have traded $DXCM stock on the open market 25 times in the past 6 months. Of those trades, 0 have been purchases and 25 have been sales.

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

    • KEVIN R SAYER (Executive Chair) has made 0 purchases and 6 sales selling 107,027 shares for an estimated $8,303,321.
    • MICHAEL JON BROWN (EVP Chief Legal Compliance Off) has made 0 purchases and 6 sales selling 10,200 shares for an estimated $801,261.
    • JON COLEMAN (EVP, Chief Commercial Officer) has made 0 purchases and 2 sales selling 9,823 shares for an estimated $722,628.
    • NICHOLAS AUGUSTINOS has made 0 purchases and 2 sales selling 8,089 shares for an estimated $679,768.
    • MARK G FOLETTA has made 0 purchases and 4 sales selling 8,000 shares for an estimated $627,179.
    • SADIE STERN (EVP Chief People & Culture Off) has made 0 purchases and 2 sales selling 5,130 shares for an estimated $447,643.
    • JEREME M SYLVAIN (EVP, Chief Financal Officer) sold 3,638 shares for an estimated $302,936
    • BRIDGETTE P HELLER has made 0 purchases and 2 sales selling 2,024 shares for an estimated $150,079.

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

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    $DXCM Hedge Fund Activity

    We have seen 526 institutional investors add shares of $DXCM stock to their portfolio, and 437 decrease their positions in their most recent quarter.

    Here are some of the largest recent moves:

    • INVESCO LTD. added 9,693,273 shares (+173.3%) to their portfolio in Q2 2026, for an estimated $652,841,936
    • ARROWSTREET CAPITAL, LIMITED PARTNERSHIP added 4,328,170 shares (+170.1%) to their portfolio in Q2 2026, for an estimated $291,502,249
    • D. E. SHAW & CO., INC. removed 3,932,889 shares (-99.9%) from their portfolio in Q2 2026, for an estimated $264,880,074
    • SIXTH STREET PARTNERS MANAGEMENT COMPANY, L.P. added 3,439,164 shares (+inf%) to their portfolio in Q2 2026, for an estimated $231,627,695
    • JPMORGAN CHASE & CO added 3,325,095 shares (+inf%) to their portfolio in Q2 2026, for an estimated $223,945,148
    • CASTLE HOOK PARTNERS LP added 3,068,495 shares (+382.7%) to their portfolio in Q2 2026, for an estimated $206,663,138
    • LOS ANGELES CAPITAL MANAGEMENT LLC removed 1,805,701 shares (-99.7%) from their portfolio in Q2 2026, for an estimated $121,613,962

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

    $DXCM Congressional Stock Trading

    Members of Congress have traded $DXCM stock 2 times in the past 6 months. Of those trades, 0 have been purchases and 2 have been sales.

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

    • SENATOR TINA SMITH has traded it 2 times. They made 0 purchases and 2 sales worth up to $500,000 on 05/07, 04/29.

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

    $DXCM Price Targets

    Multiple analysts have issued price targets for $DXCM recently. We have seen 9 analysts offer price targets for $DXCM in the last 6 months, with a median target of $85.0.

    Here are some recent targets:

    • Kieran Ryan from Deutsche Bank set a target price of $86.0 on 06/23/2026
    • Matt O'Brien from Piper Sandler set a target price of $88.0 on 06/15/2026
    • Joshua Jennings from TD Cowen set a target price of $95.0 on 06/10/2026
    • Anthony Petrone from Mizuho set a target price of $85.0 on 06/09/2026
    • Jonathan Block from Stifel set a target price of $90.0 on 06/05/2026
    • Joanne Wuensch from Citigroup set a target price of $84.0 on 05/28/2026
    • Matt Miksic from Barclays set a target price of $64.0 on 05/18/2026

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