Mark G. Foletta - 16 Jun 2025 Form 4 Insider Report for DEXCOM INC (DXCM)

Role
Director
Signature
/s/ Jereme M. Sylvain, as Attorney-in-Fact for Mark G. Foletta
Issuer symbol
DXCM
Transactions as of
16 Jun 2025
Net transactions value
-$228,605
Form type
4
Filing time
18 Jun 2025, 16:31:58 UTC
Previous filing
12 May 2025
Next filing
17 Jul 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
FOLETTA MARK G Director 6340 SEQUENCE DRIVE, SAN DIEGO /s/ Jereme M. Sylvain, as Attorney-in-Fact for Mark G. Foletta 18 Jun 2025 0001236389

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction DXCM Common Stock Sale $228,605 -2,750 -4.6% $83.13 56,621 16 Jun 2025 by Trust F1, F2, F3
holding DXCM Common Stock 5,731 16 Jun 2025 Direct F4
* 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 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.

Remarks:

Exhibit 24 - Power of Attorney