Dexcom withholds 1,451 CEO Jacob Leach shares for taxes

Leach's reported post-transaction positions include 417,457 directly held shares and 47,296 shares held through a family trust.

Available on EDGAR 11/10/2026 - 04:35 PM EST Accepted by SEC EDGAR 11/10/2026 - 04:35 PM EST Learn about SEC filing dates

Rhea-AI Filing Summary

Dexcom Inc. (DXCM) President, CEO, and Director Jacob Steven Leach had 1,451 shares withheld by the issuer on November 8, 2026, to cover tax withholding and remittance obligations connected with net settlement of restricted stock units; the footnote says this was not a sale. His direct holdings after the transaction were 417,457 shares, including 139,986 unvested restricted stock units. A separate indirect holding of 47,296 shares is held by the Gregg Family Grandchildren's Trust under agreement dated December 30, 2010, of which Leach's spouse is a trustee.

Insider Trade Summary

Tax Withholding: 1,451 shares

Tax Withholding 1 txn

Insider Leach Jacob Steven

Role President, CEO, and Director

Type	Security	Shares	Price	Value
Tax Withholding	Common Stock F1, F2	1,451	$79.41	$115K
Holding	Common Stock F3	--	--	--

Holdings After Transaction: Common Stock — 417,457 shares (Direct); Common Stock — 47,296 shares (Indirect, Family Holdings)

Footnotes (3)

1. F1. 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 restricted stock units and does not represent a sale by the Reporting Person.
2. F2. Included in this number are 139,986 unvested restricted stock units, 104,516 of which were granted on March 8, 2026 and shall vest through March 8, 2029, 23,937 of which were granted on March 8, 2025 and shall vest through March 8, 2028, 2,849 of which were granted on March 8, 2025 and shall vest through March 8, 2027, and 8,684 of which were granted on March 8, 2024 and shall vest through March 8, 2027.
3. F3. Shares are held by the Gregg Family Grandchildren's Trust UAD 12/30/2010, with respect to which the Reporting Person's spouse is a trustee.

Key Figures

Shares withheld: 1,451 shares Direct holdings after transaction: 417,457 shares Indirect holdings: 47,296 shares +2 more

5 metrics

Shares withheld 1,451 shares For tax withholding and remittance obligations on November 8, 2026

Direct holdings after transaction 417,457 shares As of November 8, 2026

Indirect holdings 47,296 shares Held by the Gregg Family Grandchildren's Trust as of November 8, 2026

Unvested restricted stock units 139,986 units Included in direct holdings after the transaction

Reported price per share $79.41 per share Reported for the tax-withholding transaction

Key Terms

net settlement, restricted stock units, tax withholding and remittance obligations

3 terms

net settlement financial

"in connection with the net settlement of restricted stock units"

restricted stock units financial

"net settlement of restricted stock units"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

tax withholding and remittance obligations financial

"to cover tax withholding and remittance obligations"

FAQ

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

How many DXCM shares did Jacob Steven Leach have withheld?

Dexcom withheld 1,451 shares on November 8, 2026, to cover tax withholding and remittance obligations tied to the net settlement of restricted stock units. The footnote states that this did not represent a sale by Jacob Steven Leach.

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

Form 4 Insider Transactions: What Each Field Means →

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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^*

Leach Jacob Steven

(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
X	Officer (give title below)		Other (specify below)
	President, CEO, and Director

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
11/08/2026

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)
			Code	V	Amount	(A) or (D)	Price
Common Stock	11/08/2026		F		1,451(1)	D	$79.41	417,457(2)	D
Common Stock								47,296	I	Family Holdings(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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. 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 restricted stock units and does not represent a sale by the Reporting Person.

2. Included in this number are 139,986 unvested restricted stock units, 104,516 of which were granted on March 8, 2026 and shall vest through March 8, 2029, 23,937 of which were granted on March 8, 2025 and shall vest through March 8, 2028, 2,849 of which were granted on March 8, 2025 and shall vest through March 8, 2027, and 8,684 of which were granted on March 8, 2024 and shall vest through March 8, 2027.

3. Shares are held by the Gregg Family Grandchildren's Trust UAD 12/30/2010, with respect to which the Reporting Person's spouse is a trustee.

Remarks:

	/s/ Christophe Cantenot, as Attorney-in-Fact for Jacob Steven Leach	11/10/2026
	** 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)