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Dexcom Inc. planned insider sales

In the last twelve months insiders at Dexcom Inc. filed 29 Form 144 notices of planned sales, 168,774 shares worth $13.0 million at the time of filing, from 9 sellers. The latest, filed 27 October 2026: Sadie Stern (officer), 2,565 shares worth $201,660, planned for around 27 October 2026 through Morgan Stanley Smith Barney LLC Executive Financial Services.

FiledSellerRelationshipSharesValuePlanned saleSold, per Form 4BrokerHow acquiredFiling
27 October 2026Sadie SternOfficer2,565$201,66027 October 20262,565 shares from 27 October 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesRestricted StockForm 144
15 October 2026Michael BrownOfficer1,700$145,31615 October 20261,700 shares from 15 October 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesRestricted StockForm 144
28 September 2026Sadie SternOfficer2,565$220,97528 September 20262,565 shares from 28 September 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesRestricted StockForm 144
15 September 2026Michael BrownOfficer1,700$142,86815 September 20261,700 shares from 15 September 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesRestricted StockForm 144
15 September 2026Augustinos NicholasDirector6,539$549,53815 September 20268,089 shares from 14 September 2026Fidelity Brokerage Services LLCVested RSU GrantForm 144
14 September 2026Augustinos NicholasDirector1,550$130,23114 September 2026None on Form 4 yetFidelity Brokerage Services LLCVested RSU GrantForm 144
10 September 2026Jereme SylvainOfficer3,638$302,93610 September 20263,638 shares from 10 September 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesRestricted StockForm 144
27 August 2026Sadie SternOfficer2,565$226,66927 August 20262,565 shares from 27 August 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesRestricted StockForm 144
20 August 2026Kevin R SayerOfficer, Director26,756$2.4 million20 August 202626,756 shares from 20 August 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesRestricted StockForm 144
14 August 2026Michael BrownOfficer1,700$156,28114 August 20261,700 shares from 14 August 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesRestricted StockForm 144
12 August 2026Heller Bridgette PDirector1,012$89,34912 August 20261,012 shares from 12 August 2026Fidelity Brokerage Services LLCRestricted Stock VestingForm 144
3 August 2026Foletta Mark GDirector2,000$170,6403 August 20262,000 shares from 3 August 2026UBS Financial Services, Inc.Vested RSUsForm 144
31 July 2026Foletta Mark GDirector2,000$160,00031 July 20262,000 shares from 31 July 2026UBS Financial Services, Inc.Vested RSUsForm 144
20 July 2026Kevin R SayerOfficer, Director26,756$2.0 million20 July 202626,756 shares from 20 July 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesPerformance and Restricted StockForm 144
15 July 2026Michael BrownOfficer1,700$126,51415 July 20261,700 shares from 15 July 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesRestricted StockForm 144
6 July 2026Kevin R SayerOfficer, Director26,756$1.9 million6 July 202626,756 shares from 6 July 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesPerformance and Restricted StockForm 144
15 June 2026Michael BrownOfficer1,700$128,43515 June 20261,700 shares from 15 June 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesRestricted StockForm 144
15 June 2026Foletta Mark GDirector4,000$302,80015 June 20264,000 shares from 15 June 2026UBS Financial Services, Inc.Vested RSUsForm 144
4 June 2026Jon C ColemanOfficer4,911$364,0524 June 20269,823 shares from 3 June 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesRestricted StockForm 144
3 June 2026Jon C ColemanOfficer4,912$358,5763 June 2026No matching Form 4 saleMorgan Stanley Smith Barney LLC Executive Financial ServicesRestricted StockForm 144
21 May 2026Kevin R SayerOfficer, Director26,759$1.9 million21 May 202626,759 shares from 21 May 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesPerformance SharesForm 144
15 May 2026Michael BrownOfficer1,700$101,84715 May 20261,700 shares from 15 May 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesRestricted StockForm 144
12 May 2026Heller Bridgette PDirector1,012$60,73012 May 20261,012 shares from 12 May 2026Fidelity Brokerage Services LLCRestricted Stock VestingForm 144
15 April 2026Michael BrownOfficer1,700$107,16815 April 20261,700 shares from 15 April 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesRestricted StockForm 144
16 March 2026Michael BrownOfficer1,700$110,24516 March 20261,700 shares from 16 March 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesRestricted StockForm 144
12 February 2026Heller Bridgette PDirector1,012$68,82612 February 20261,012 shares from 12 February 2026Fidelity Brokerage Services LLCRestricted Stock VestingForm 144
14 November 2025Collins Richard AlexanderDirector2,906$171,59914 November 20252,906 shares from 14 November 2025Fidelity Brokerage Services LLCRestricted Stock VestingForm 144
12 November 2025Heller Bridgette PDirector1,012$58,76712 November 20251,012 shares from 12 November 2025Fidelity Brokerage Services LLCRestricted Stock VestingForm 144
10 November 2025Collins Richard AlexanderDirector3,948$217,81110 November 20253,948 shares from 10 November 2025Fidelity Brokerage Services LLCRestricted Stock VestingForm 144
A Form 144 is the notice an insider files with the SEC before selling restricted or control shares over the Rule 144 thresholds; it says what may be sold, not what was.
Read moreValue is the filer's own aggregate market value. Sold, per Form 4: the same seller's open-market sales on Form 4 from the notice's date to 90 days after, added up, as they appear on the insiders page; a holder who files no Form 4, such as some large holders, never shows one. What is a Form 144?