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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1093557	Dexcom Inc	DXCM	Surgical & Medical Instruments & Apparatus (3841)	330857544

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1238485	Nicholas Augustinos	6340 Sequence Drive San Diego CA 92121		Yes	No	No	No

Transaction Summary

Sold:	6,290 shares	Avg. Price: $82.34	Total Value: $517,906.02
Number of Shares After Transactions:	33,411 shares

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Stock	Disposition	2025-06-13	2,618	$81.69	37,083	No	4	S	Indirect	by Trust
Common Stock	Disposition	2025-06-16	3,672	$82.80	33,411	No	4	S	Indirect	by Trust

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	S	Indirect	by Trust
No	4	S	Indirect	by Trust

Reported Non-Derivative Holdings

Sec. Name	Remaning Holdings	Nature of Ownership	Explanation
Common Stock	5,046	Direct

Footnotes

On March 14, 2025, Mr. Augustinos adopted a 10b5-1 Plan. This 10b5-1 Plan allows the orderly disposition of shares owned by Mr. Augustinos. The shares set forth above were sold pursuant to the 10b5-1 Plan.
Shares are held by the Kirschner/Augustinos Revocable Trust, with respect to which the reporting person is a trustee.
Included in this number are 5,046 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.