DexCom director Ashley transfers 2,389 shares to trust

Q: How many DXCM shares did Euan A. Ashley transfer?

Euan A. Ashley transferred 2,389 shares of DexCom common stock to the Ashley Family Revocable Living Trust on October 30, 2026, for no consideration.

Q: What unvested stock units did Euan A. Ashley report after the transfer?

The reported post-transaction amount was 10,342 shares, identified as unvested restricted stock units. Of these, 5,565 were granted May 28, 2026, and vest on the earlier of the one-year anniversary or the date of the 2027 Annual Meeting of Stockholders; 4,777 were granted October 24, 2025, and shall vest through October 24, 2028.

The transferred shares are held by the Ashley Family Revocable Living Trust, whose co-trustees are Euan A. Ashley and his spouse.

Available on EDGAR 11/03/2026 - 05:01 PM EST Accepted by SEC EDGAR 11/03/2026 - 05:01 PM EST

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Form Type

Rhea-AI Filing Summary

Euan A. Ashley reported disposition transactions in this Form 4 filing. DexCom (DXCM) director Euan A. Ashley transferred 2,389 shares of common stock to the Ashley Family Revocable Living Trust for no consideration on October 30, 2026. The reported post-transaction direct amount was 10,342 shares, identified as unvested restricted stock units: 5,565 granted May 28, 2026, vesting on the earlier of the one-year anniversary or the 2027 Annual Meeting of Stockholders, and 4,777 granted October 24, 2025, vesting through October 24, 2028. Ashley and his spouse are co-trustees of the trust holding the transferred shares.

Insider Trade Summary

2,389 shares gifted

Gift 1 txn

Insider Ashley Euan A.

Role Director

Type	Security	Shares	Price	Value
Gift	Common Stock ^{F1, F2}	2,389	$0.00	$0.00
Holding	Common Stock ^{F2, F3}	--	--	--

Holdings After Transaction: Common Stock — 10,342 shares (Direct); Common Stock — 2,389 shares (Indirect, By Trust)

Footnotes (3)

F1. Represents unvested restricted stock units, 5,565 of which were granted on May 28, 2026 and will vest on the earlier of the one year anniversary of the grant date or the date of DexCom, Inc.'s 2027 Annual Meeting of Stockholders, and 4,777 of which were granted on October 24, 2025 and shall vest through October 24, 2028.
F2. On October 30, 2026, the Reporting Person transferred 2,389 shares of the Issuer's common stock to the Ashley Family Revocable Living Trust for no consideration.
F3. Shares are held by the Ashley Family Revocable Living Trust, with respect to which the Reporting Person and the Reporting Person's spouse are co-trustees.

Key Figures

Shares transferred: 2,389 shares Unvested restricted stock units after transaction: 10,342 shares Unvested restricted stock units: 5,565 shares +1 more

4 metrics

Shares transferred 2,389 shares Transferred to the Ashley Family Revocable Living Trust on October 30, 2026, for no consideration

Unvested restricted stock units after transaction 10,342 shares Reported post-transaction amount

Unvested restricted stock units 5,565 shares Granted May 28, 2026; vest on the earlier of the one-year anniversary or the date of the 2027 Annual Meeting of Stockholders

Unvested restricted stock units 4,777 shares Granted October 24, 2025; vest through October 24, 2028

Key Terms

unvested restricted stock units, Ashley Family Revocable Living Trust, co-trustees

3 terms

unvested restricted stock units financial

"Represents unvested restricted stock units"

Ashley Family Revocable Living Trust technical

"transferred 2,389 shares of the Issuer's common stock to the Ashley Family Revocable Living Trust"

co-trustees technical

"the Reporting Person and the Reporting Person's spouse are co-trustees"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many DXCM shares did Euan A. Ashley transfer?

Euan A. Ashley transferred 2,389 shares of DexCom common stock to the Ashley Family Revocable Living Trust on October 30, 2026, for no consideration.

What unvested stock units did Euan A. Ashley report after the transfer?

The reported post-transaction amount was 10,342 shares, identified as unvested restricted stock units. Of these, 5,565 were granted May 28, 2026, and vest on the earlier of the one-year anniversary or the date of the 2027 Annual Meeting of Stockholders; 4,777 were granted October 24, 2025, and shall vest through October 24, 2028.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a 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). See Instruction 10.

1. Name and Address of Reporting Person^*

Ashley Euan A.

(Last)

(First)

(Middle)

6340 SEQUENCE DRIVE

(Street)

SAN DIEGO

CALIFORNIA

92121

(City)

(State)

(Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
DEXCOM INC [ DXCM ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director	10% Owner
	Officer (give title below)	Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
10/30/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	10/30/2026		G		2,389	D	$0	10,342⁽¹⁾	D⁽²⁾
Common Stock								2,389	I⁽²⁾	By Trust⁽³⁾

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)

Explanation of Responses:

1. Represents unvested restricted stock units, 5,565 of which were granted on May 28, 2026 and will vest on the earlier of the one year anniversary of the grant date or the date of DexCom, Inc.'s 2027 Annual Meeting of Stockholders, and 4,777 of which were granted on October 24, 2025 and shall vest through October 24, 2028.

2. On October 30, 2026, the Reporting Person transferred 2,389 shares of the Issuer's common stock to the Ashley Family Revocable Living Trust for no consideration.

3. Shares are held by the Ashley Family Revocable Living Trust, with respect to which the Reporting Person and the Reporting Person's spouse are co-trustees.

Remarks:

	/s/ Christophe Cantenot, as Attorney-in-Fact for Dr. Euan Ashley	11/03/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

Source: View Original Filing on SEC EDGAR