Jereme M. Sylvain - 10 Sep 2026 Form 4 Insider Report for DEXCOM INC (DXCM)

Reporting relationship: EVP, Chief Financal Officer
Issuer ticker: DXCM
Reported as of: 10 Sep 2026
Net transaction value: -$302,936
SEC form: 4
Accepted by SEC: 14 Sep 2026, 16:02:47 UTC
Prior SEC filing: 25 Aug 2026
Source filing: View source filing
Reporting owner signature: /s/ Jereme M. Sylvain

Key filing fact

Jereme M. Sylvain filed Form 4 for DEXCOM INC (DXCM) on 14 Sep 2026.

Key facts

This page summarizes Jereme M. Sylvain's Form 4 filing for DEXCOM INC (DXCM).
1 reported transaction and 0 derivative rows are listed below.
Accepted by SEC: 14 Sep 2026, 16:02.

Change

Previous filing in this sequence was filed on 25 Aug 2026.
Current net transaction value: -$302,936.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001681267 Primary reporting owner

Sylvain Jereme M

Relationship: EVP, Chief Financal Officer
Address: 6340 SEQUENCE DRIVE, SAN DIEGO
Signature: /s/ Jereme M. Sylvain
Signature date: 14 Sep 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

DXCM transaction

Common Stock

Sale

Transaction value: $302,936
Shares: -3,638
Change %: -2.4%
Price: $83.27
Shares after: 146,828
Date: 10 Sep 2026
Ownership: Direct
Footnotes: F1, F2

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Rule 10b5-1 trading plan

These transactions were reported as open-market trades under a Rule 10b5-1 plan. The plan lets an insider set trading instructions in advance, which can reduce the risk of trading while in possession of material nonpublic information.

Original filing language: transaction made pursuant to a contract, instruction, or written plan intended to satisfy Rule 10b5-1(c).

Explanation of responses 2 footnotes

Footnote F1

On June 10, 2026, Mr. Sylvain adopted a 10b5-1 Plan. This 10b5-1 Plan allows the orderly disposition of shares owned by Mr. Sylvain. The shares set forth above were sold pursuant to the 10b5-1 Plan.

Footnote F2

Included in this number are 87,094 unvested restricted stock units, 48,774 of which were granted on March 8, 2026 and shall vest through March 8, 2029, 23,937 of which were granted on March 8, 2025 and shall vest through March 8, 2028, 5,699 of which were granted on March 8, 2025 and shall vest through March 8, 2027, 8,684 of which were granted on March 8, 2024 and shall vest through March 8, 2027, and 76 additional shares acquired under the Issuer's Amended and Restated 2015 Employee Stock Purchase Plan.