Dexcom (NASDAQ: DXCM) CEO retains 418,908 shares after tax withholding

Rhea-AI Filing Summary

DEXCOM INC (DXCM) reported that President, CEO, and Director Jacob Steven Leach had 1,451 shares of common stock withheld on 2026-08-22 to cover tax withholding and remittance obligations in connection with the net settlement of restricted stock units; this is explicitly stated not to be a market sale. After this withholding, he holds 418,908 direct shares, including 142,836 unvested restricted stock units with grants from March 8, 2024, 2025, and 2026 that vest through March 8, 2029. He also has 47,296 shares held indirectly through the Gregg Family Grandchildren's Trust, with his spouse serving as trustee.

Insider Trade Summary

Net Seller: 1,451 shares

Net Sell 2 txns

Insider Leach Jacob Steven

Role President, CEO, and Director

Type	Security	Shares	Price	Value
Tax Withholding	Common Stock F1, F2	1,451	$92.34	$134K
holding	Common Stock F3	--	--	--

Holdings After Transaction: Common Stock — 418,908 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 142,836 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, 5,699 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 for tax obligations: 1,451 shares of Common Stock Withholding reference price per share: $92.34 per share Direct holdings after transaction: 418,908 shares of Common Stock +3 more

6 metrics

Shares withheld for tax obligations 1,451 shares of Common Stock Withheld on 2026-08-22 to cover tax withholding and remittance obligations

Withholding reference price per share $92.34 per share Price associated with 1,451 shares withheld for tax obligations

Direct holdings after transaction 418,908 shares of Common Stock Direct ownership by Jacob Steven Leach following the withholding transaction

Unvested restricted stock units 142,836 restricted stock units Included within direct holdings; vesting from March 8, 2024–March 8, 2029

Unvested RSUs granted March 8, 2026 104,516 restricted stock units Grant on March 8, 2026 vesting through March 8, 2029

Indirect trust holdings 47,296 shares of Common Stock Held by the Gregg Family Grandchildren's Trust UAD 12/30/2010

Key Terms

restricted stock units, net settlement, tax withholding and remittance obligations, indirect, +1 more

5 terms

restricted stock units financial

"Included in this number are 142,836 unvested restricted stock units, 104,516..."

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.

net settlement financial

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

tax withholding and remittance obligations financial

"shares required to be withheld by the Issuer to cover tax withholding and remittance obligations..."

indirect financial

"Shares are held by the Gregg Family Grandchildren's Trust... indirect ownership"

trustee financial

"with respect to which the Reporting Person's spouse is a trustee."

A trustee is a person or institution legally appointed to hold and manage assets or enforce an agreement on behalf of other people (beneficiaries). Think of a trustee as a neutral referee or custodian who must act in the beneficiaries’ best interests, follow the trust or contract rules, and handle distributions, recordkeeping and enforcement. Investors care because a trustworthy trustee protects their rights, ensures promised payments or remedies are delivered, and can influence recoveries if things go wrong.

FAQ

What transaction did DXCM CEO Jacob Steven Leach report on this Form 4?

He reported that 1,451 DXCM shares of common stock were withheld on 2026-08-22 to satisfy tax withholding and remittance obligations related to net settlement of restricted stock units. The company states this does not represent a sale by the reporting person.

How many DXCM shares does Jacob Steven Leach hold directly after this transaction?

After the tax-related withholding, Jacob Steven Leach directly holds 418,908 DXCM common shares. This total includes 142,836 unvested restricted stock units that vest on various schedules through March 8, 2029, as disclosed in the footnotes.

How many unvested restricted stock units does the DXCM CEO have and how do they vest?

He has 142,836 unvested restricted stock units: 104,516 granted on March 8, 2026 vesting through March 8, 2029; 23,937 granted on March 8, 2025 vesting through March 8, 2028; 5,699 granted on March 8, 2025 vesting through March 8, 2027; and 8,684 granted on March 8, 2024 vesting through March 8, 2027.

What price is associated with the DXCM shares withheld for taxes?

The 1,451 DXCM shares withheld for taxes are reported at $92.34 per share. This withholding is described as covering tax withholding and remittance obligations tied to restricted stock unit settlement, and not as an open-market sale by Jacob Steven Leach.

What indirect DXCM shareholdings related to Jacob Steven Leach are disclosed?

An indirect holding of 47,296 DXCM shares is disclosed as being held by the Gregg Family Grandchildren's Trust UAD 12/30/2010. The filing states that Jacob Steven Leach’s spouse is a trustee of this trust.

Was this DXCM Form 4 transaction made under a Rule 10b5-1 trading plan?

The filing’s Rule 10b5-1 checkbox is not affirmed (aff_10b5_one is false). The reported transaction is a tax-withholding disposition of shares required to cover obligations from restricted stock unit settlement.

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

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 08/25/2026 - 04:15 PM Accepted by SEC EDGAR 08/25/2026 - 04:14 PM Learn about SEC filing dates

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)
08/22/2026

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	08/22/2026		F		1,451(1)	D	$92.34	418,908(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 142,836 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, 5,699 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/ Jereme M. Sylvain, as Attorney-in-Fact for Jacob Steven Leach	08/25/2026
	** 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)