Michael Jon Brown - 16 Mar 2026 Form 4 Insider Report for DEXCOM INC (DXCM)

Role
EVP, Chief Legal Officer
Signature
/s/ Jereme M. Sylvain, as Attorney-in-Fact for Michael Jon Brown
Issuer symbol
DXCM
Transactions as of
16 Mar 2026
Net transactions value
-$110,245
Form type
4
Filing time
18 Mar 2026, 16:07:04 UTC
Previous filing
10 Mar 2026
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Brown Michael Jon EVP, Chief Legal Officer 6340 SEQUENCE DRIVE, SAN DIEGO /s/ Jereme M. Sylvain, as Attorney-in-Fact for Michael Jon Brown 18 Mar 2026 0001899922

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction DXCM Common Stock Sale $110,245 -1,700 -1.5% $64.85 112,904 16 Mar 2026 Direct F1, F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.

Transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c).

Explanation of Responses:

Id Content
F1 On November 26, 2025, Mr. Brown adopted a 10b5-1 Plan. This 10b5-1 Plan allows the orderly disposition of shares owned by Mr. Brown. The shares set forth above were sold pursuant to the 10b5-1 Plan.
F2 Included in this number are 77,603 unvested restricted stock units, 39,019 of which were granted on March 8, 2026 and shall vest through March 8, 2029, 19,948 of which were granted on March 8, 2025 and shall vest through March 8, 2028, 11,399 of which were granted on March 8, 2025 and shall vest through March 8, 2027, and 7,237 of which were granted on March 8, 2024 and shall vest through March 8, 2027.