DEXCOM INC — Director's Dealing 2025

Jun 18, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: DEXCOM INC (DXCM)
CIK: 0001093557
Period of Report: 2025-06-16

Reporting Person: FOLETTA MARK G (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-06-16	Common Stock	S	2750	$83.129	Disposed	56621	Indirect

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	5731	Direct

Footnotes

F1: On March 13, 2025, The Foletta Family Trust DTD 1/30/2015 (the "Trust") adopted a 10b5-1 Plan. This 10b5-1 Plan allows the orderly disposition of shares owned by the Trust. The shares set forth above were sold pursuant to the 10b5-1 Plan.

F2: This transaction was executed in multiple trades at prices ranging from $82.635 to $83.61. The price above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transactions were effected.

F3: Shares are held by The Foletta Family Trust DTD 1/30/2015, with respect to which the reporting person is a trustee.

F4: Represents unvested restricted stock units which were granted on May 8, 2025 and shall vest on the earlier of the one year anniversary of the grant date or the date of DexCom, Inc.'s 2026 Annual Meeting of Stockholders.