DexCom director granted 5,605 RSUs

Collins Richard Alexander reported acquisition or exercise transactions in this Form 4 filing.

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Form Type

Rhea-AI Filing Summary

Collins Richard Alexander reported acquisition or exercise transactions in this Form 4 filing.

DexCom director Richard Alexander Collins reported a new equity award and his current holdings. He received a grant of 5,605 shares of DexCom common stock in the form of restricted stock units at a stated price of $0.00 per share. The RSU award was granted on May 28, 2026 and will vest 100% on the earlier of the one-year anniversary of the grant date or the date of DexCom’s 2027 Annual Meeting of Stockholders. Each restricted stock unit represents a contingent right to receive one share of DexCom common stock upon settlement. Collins also reported indirect ownership of 40,162 DexCom common shares held by the Richard A. Collins Revocable Trust, for which he serves as trustee.

Insider Trade Summary

Grant/Award: 5,605 shares

Grant/Award 2 txns

Insider Collins Richard Alexander

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	5,605	$0.00	$0.00
holding	Common Stock	--	--	--

Holdings After Transaction: Common Stock — 5,605 shares (Direct); Common Stock — 40,162 shares (Indirect, by Trust)

Footnotes (2)

F1. The RSU Award was granted on May 28, 2026 and 100% of the RSU Award 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. Each share is represented by a restricted stock unit (RSU) that represents a contingent right to receive one share of DexCom, Inc. Common Stock upon settlement.
F2. Shares are held by the Richard A. Collins Revocable Trust, with respect to which the Reporting Person is a trustee.

Key Figures

RSU grant size: 5,605 shares RSU grant price: $0.00 per share Direct shares after grant: 5,605 shares +2 more

5 metrics

RSU grant size 5,605 shares Restricted stock unit award granted May 28, 2026

RSU grant price $0.00 per share Stated price for RSU award

Direct shares after grant 5,605 shares Total direct common shares following RSU grant

Indirect trust holdings 40,162 shares Common stock held by Richard A. Collins Revocable Trust

Vesting condition Earlier of 1 year or 2027 meeting RSUs vest earlier of one-year anniversary or 2027 Annual Meeting

Key Terms

restricted stock unit, RSU Award, contingent right, Revocable Trust, +1 more

5 terms

restricted stock unit financial

"Each share is represented by a restricted stock unit (RSU) that represents a contingent right"

A restricted stock unit is a promise from a company to give an employee shares of stock after certain conditions are met, like staying with the company for a set amount of time. It’s like earning a bonus that turns into company stock once you’ve proven your commitment, making it a way to motivate and reward employees.

RSU Award financial

"The RSU Award was granted on May 28, 2026 and 100% of the RSU Award will vest"

contingent right financial

"represents a contingent right to receive one share of DexCom, Inc. Common Stock"

Revocable Trust financial

"Shares are held by the Richard A. Collins Revocable Trust, with respect to which"

A revocable trust is a legal arrangement where the person who creates it keeps control and can change or cancel the trust at any time, while naming who will manage and receive the assets later. Think of it like a flexible folder for your investments and property that can be relabeled or reworked as circumstances change; it matters to investors because it determines how ownership is recorded, how easily assets transfer on incapacity or death, and whether holdings bypass public probate proceedings.

indirect ownership financial

"total_shares_following_transaction 40162.0000, direct_or_indirect I, nature_of_ownership by Trust"

FAQ

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

What did DexCom (DXCM) director Richard Alexander Collins report in this Form 4?

Richard Alexander Collins reported a new equity award and his current DexCom holdings. He received 5,605 restricted stock units and disclosed 40,162 common shares held indirectly through the Richard A. Collins Revocable Trust, where he serves as trustee.

How many DexCom (DXCM) shares are included in Collins’s new RSU award?

The RSU award covers 5,605 DexCom common shares. Each restricted stock unit represents a contingent right to receive one DexCom common share upon settlement, giving Collins potential additional direct ownership once the units vest and are settled into shares.

When do Richard Collins’s new DexCom (DXCM) RSUs vest?

The RSUs vest 100% on the earlier of two dates. They fully vest on the one-year anniversary of the May 28, 2026 grant date or on the date of DexCom’s 2027 Annual Meeting of Stockholders, whichever occurs first according to the award terms.

Are Collins’s new DexCom (DXCM) RSUs an open-market purchase?

No, the filing describes the transaction as a grant or award acquisition. The 5,605 DexCom restricted stock units were granted as compensation at a stated price of $0.00 per share, rather than being bought in the open market.

How many DexCom (DXCM) shares does Richard Collins hold indirectly through a trust?

The Form 4 reports that 40,162 DexCom common shares are held indirectly. These shares are owned by the Richard A. Collins Revocable Trust, with respect to which Collins is a trustee, giving him an indirect ownership position via the trust structure.

What does each restricted stock unit (RSU) for DexCom (DXCM) represent?

Each RSU represents a contingent right to receive one DexCom common share. After the vesting conditions are satisfied and the award is settled, Collins would receive one share of DexCom common stock for each vested RSU in the May 28, 2026 grant.

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

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Accepted by SEC EDGAR 06/01/2026 - 05:34 PM EDT

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^*

Collins Richard Alexander

(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)
05/28/2026

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	05/28/2026		A		5,605⁽¹⁾	A	$0	5,605	D
Common Stock								40,162	I	by Trust⁽²⁾

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. The RSU Award was granted on May 28, 2026 and 100% of the RSU Award 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. Each share is represented by a restricted stock unit (RSU) that represents a contingent right to receive one share of DexCom, Inc. Common Stock upon settlement.

2. Shares are held by the Richard A. Collins Revocable Trust, with respect to which the Reporting Person is a trustee.

Remarks:

	/s/ Jereme M. Sylvain, as Attorney-in-Fact for Richard Alexander Collins	06/01/2026
	** 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