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DEXCOM INC Director's Dealing 2025

Nov 17, 2025

30198_dirs_2025-11-17_53570040-9f0f-4a00-8572-d8b6cf0bbdf7.zip

Director's Dealing

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SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: DEXCOM INC (DXCM)
CIK: 0001093557
Period of Report: 2025-11-14

Reporting Person: Collins Richard Alexander (Director)

Non-Derivative Transactions

Date Security Code Shares Price A/D Holdings After Ownership
2025-11-14 Common Stock S 2906 $59.05 Disposed 35088 Indirect

Holdings (Non-Derivative)

Security Shares Ownership
Common Stock 5074 Direct

Footnotes

F1: On August 7, 2025, the Richard A. Collins Revocable Trust (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: Shares are held by the Richard A. Collins Revocable Trust, with respect to which the reporting person is a trustee.

F3: Represents unvested restricted stock units which were granted on May 8, 2025 and will 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.