Sadie Stern - 29 Jan 2026 Form 4 Insider Report for DEXCOM INC (DXCM)

Signature
/s/ Jereme M. Sylvain, as Attorney-in-Fact for Sadie Stern
Issuer symbol
DXCM
Transactions as of
29 Jan 2026
Net transactions value
-$194,844
Form type
4
Filing time
02 Feb 2026, 16:46:39 UTC
Previous filing
08 Sep 2025
Next filing
10 Mar 2026

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Stern Sadie EVP, Chief HR Officer 6340 SEQUENCE DRIVE, SAN DIEGO /s/ Jereme M. Sylvain, as Attorney-in-Fact for Sadie Stern 02 Feb 2026 0001797971

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction DXCM Common Stock Award $0 +7,123 +6.8% $0.000000 112,346 29 Jan 2026 Direct F1
transaction DXCM Common Stock Tax liability $194,844 -2,656 -2.4% $73.36 109,690 29 Jan 2026 Direct F2, F3
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Represents shares issued to the Reporting Person upon vesting of performance-based restricted stock units (PSUs) granted to the Reporting Person on March 8, 2023, resulting from achievement of performance conditions under the PSUs.
F2 Represents the number of shares required to be withheld by the Issuer to cover tax withholding and remittance obligations in connection with the net settlement of PSUs and does not represent a sale by the Reporting Person.
F3 Included in this number are 74,450 unvested restricted stock units, 29,922 of which were granted on March 8, 2025 and shall vest through March 8, 2028, 22,798 of which were granted on March 8, 2025 and shall vest through March 8, 2027, 14,474 of which were granted on March 8, 2024 and shall vest through March 8, 2027, and 7,256 of which were granted on March 8, 2023 and shall vest through March 8, 2026.