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Dexcom Inc. (DXCM)

Dexcom Inc. (DXCM) Insider Trading

Directors, officers and holders of more than 10% of DXCM report their trades in its stock on SEC Form 4, within two business days. Each row below is one Form 4 transaction line. The one-letter code says what kind of transaction it was: only P (purchase) and S (sale) are open-market or private trades; awards, option exercises, tax withholding and gifts carry other codes.

Recent Form 4 transactions

The 50 most recent of 166 transactions on file: 0 with code P, 26 with code S and 24 with other codes.

DateInsiderCodeShares
Oct 30, 2026Ashley Euan A.G Gift2,389
Oct 27, 2026Stern SadieS Sale2,565
Oct 15, 2026Brown Michael JonS Sale1,700
Sep 28, 2026Stern SadieS Sale2,565
Sep 15, 2026Brown Michael JonS Sale1,700
Sep 15, 2026AUGUSTINOS NICHOLASS Sale6,539
Sep 14, 2026AUGUSTINOS NICHOLASS Sale1,550
Sep 10, 2026Boehnlein Glenn SA Award5,841
Sep 10, 2026Sylvain Jereme MS Sale3,638
Aug 27, 2026Stern SadieS Sale2,565
Aug 22, 2026Leach Jacob StevenF Tax Payment1,451
Aug 22, 2026Sylvain Jereme MF Tax Payment1,451
Aug 22, 2026Brown Michael JonF Tax Payment1,451
Aug 22, 2026Stern SadieF Tax Payment1,451
Aug 20, 2026SAYER KEVIN RS Sale19,308
Aug 20, 2026SAYER KEVIN RS Sale7,351
Aug 20, 2026SAYER KEVIN RS Sale97
Aug 14, 2026Brown Michael JonS Sale1,700
Aug 12, 2026AUGUSTINOS NICHOLASG Gift1,075
Aug 12, 2026Heller Bridgette PS Sale1,012
Aug 3, 2026FOLETTA MARK GS Sale2,000
Jul 31, 2026FOLETTA MARK GS Sale2,000
Jul 20, 2026SAYER KEVIN RS Sale26,756
Jul 15, 2026Brown Michael JonS Sale1,700
Jul 6, 2026SAYER KEVIN RS Sale26,756
Jun 15, 2026Brown Michael JonS Sale1,700
Jun 15, 2026FOLETTA MARK GS Sale199
Jun 15, 2026FOLETTA MARK GS Sale3,801
Jun 4, 2026Coleman JonS Sale4,911
Jun 3, 2026Coleman JonS Sale4,912
May 28, 2026Malady KyleA Award5,575
May 28, 2026Driscoll RimmaA Award5,605
May 28, 2026ALTMAN STEVEN RA Award5,565
May 28, 2026AUGUSTINOS NICHOLASA Award5,575
May 28, 2026Osterloh Albert Frederick IVA Award1,630
May 28, 2026Heller Bridgette PA Award5,575
May 28, 2026Ashley Euan A.A Award5,565
May 28, 2026Collins Richard AlexanderA Award5,605
May 28, 2026FOLETTA MARK GA Award6,331
May 28, 2026GALA RENEE DA Award5,605
May 22, 2026Stern SadieF Tax Payment1,451
May 22, 2026Coleman JonF Tax Payment7,362
May 22, 2026Sylvain Jereme MF Tax Payment1,451
May 22, 2026Brown Michael JonF Tax Payment1,451
May 22, 2026Leach Jacob StevenF Tax Payment1,451
May 21, 2026SAYER KEVIN RS Sale26,759
May 15, 2026Brown Michael JonS Sale1,700
May 12, 2026Heller Bridgette PS Sale1,012
May 8, 2026FOLETTA MARK GG Gift5,731
May 8, 2026FOLETTA MARK GG Gift5,731

The full Form 4 history is on the DXCM company page (Insider Trades card, View all).

Questions about this data

Which insider transactions are open-market trades?

Code P (open market or private purchase) and code S (open market or private sale). Code F is shares withheld to pay tax on vesting stock, A is an award from the company, M and X are option exercises and G is a gift. None of those is the insider choosing to buy or sell in the market.

How quickly are insider trades reported?

A Form 4 is due before the end of the second business day after the trade. The date shown is the transaction date from the form.

Who has to file Form 4?

Officers, directors and beneficial owners of more than 10% of a class of the company’s registered equity, under Section 16 of the Securities Exchange Act.

Look up any code in the Form 4 transaction code reference, or read Form 4 codes explained.