Arista director Templeton gains 971 shares via RSUs

Arista Networks director Mark B. Templeton increased his equity stake through RSU vesting and exercise.

Rhea-AI Filing Summary

Arista Networks director Mark B. Templeton increased his equity stake through RSU vesting and exercise. On May 20, 2026, he exercised restricted stock units that converted into 971 shares of Common Stock at an exercise price of $0.00 per share. Following this transaction, he held 57,872 shares of Arista Networks Common Stock directly and 75,200 shares indirectly through a trust for which his spouse serves as trustee. Each restricted stock unit represents a right to receive one share of Common Stock upon vesting under a quarterly vesting schedule that began on August 20, 2025.

Insider Trade Summary

971 shares exercised/converted

Exercise 3 txns

Insider TEMPLETON MARK B

Role Director

Type	Security	Shares	Price	Value
Exercise	Restricted Stock Unit-7	971	$0.00	$0.00
Exercise	Common Stock	971	$0.00	$0.00
holding	Common Stock	--	--	--

Holdings After Transaction: Restricted Stock Unit-7 — 0 contracts (Direct); Common Stock — 57,872 shares (Direct); Common Stock — 75,200 shares (Indirect, by Spouse)

Footnotes (3)

1. F1. Each restricted stock unit represents a contingent right to receive one share of Arista Networks, Inc. Common Stock upon vesting.
2. F2. These shares are held in a trust for which the reporting person's spouse serves as trustee.
3. F3. The reporting person was granted RSUs on May 30, 2025. 1/4th of the shares vest on August 20, 2025 and will continue to vest at the same rate on each quarterly vest date thereafter. A quarterly vest date is the first market trading day on or after February 20, May 20, August 20, or November 20.

Key Figures

RSU shares exercised: 971 shares Exercise price: $0.00 per share Direct holdings after transaction: 57,872 shares +2 more

5 metrics

RSU shares exercised 971 shares Restricted stock units converted to Common Stock on May 20, 2026

Exercise price $0.00 per share Price for RSU conversion into Common Stock

Direct holdings after transaction 57,872 shares Common Stock held directly by Mark B. Templeton

Indirect holdings after transaction 75,200 shares Common Stock held indirectly via spouse’s trust

RSU grant date May 30, 2025 Grant date for restricted stock units that vest quarterly

Key Terms

Restricted Stock Unit, derivative exercise/conversion, indirect ownership, trustee, +1 more

5 terms

Restricted Stock Unit financial

"Each restricted stock unit represents a contingent right to receive one share of Arista Networks, Inc. Common Stock upon vesting."

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.

derivative exercise/conversion financial

"transaction_action: derivative exercise/conversion for RSUs converting into Common Stock."

indirect ownership financial

"These shares are held in a trust for which the reporting person's spouse serves as trustee, and are reported as indirect ownership."

trustee financial

"These shares are held in a trust for which the reporting person's spouse serves as 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.

vesting schedule financial

"1/4th of the shares vest on August 20, 2025 and continue to vest at the same rate on each quarterly vest date thereafter."

A vesting schedule is a timeline that determines when someone gains full ownership of certain benefits, such as company stock or retirement contributions. Think of it like earning the right to own a gift gradually over time, rather than receiving it all at once. It matters to investors because it affects when they can fully access or sell these benefits, influencing their financial planning and decision-making.

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

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Accepted by SEC EDGAR 05/22/2026 - 06:47 PM EDT 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^*

TEMPLETON MARK B

(Last) (First) (Middle)

5453 GREAT AMERICA PARKWAY

(Street)

SANTA CLARA CALIFORNIA 95054

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Arista Networks, Inc. [ ANET ]

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)
05/20/2026

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	05/20/2026		M		971	A	$0.0(1)	57,872	D
Common Stock								75,200	I	by Spouse(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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Restricted Stock Unit-7	$0.0(1)	05/20/2026		M			971	(3)	(3)	Common Stock	971	$0.0	0	D

Explanation of Responses:

1. Each restricted stock unit represents a contingent right to receive one share of Arista Networks, Inc. Common Stock upon vesting.

2. These shares are held in a trust for which the reporting person's spouse serves as trustee.

3. The reporting person was granted RSUs on May 30, 2025. 1/4th of the shares vest on August 20, 2025 and will continue to vest at the same rate on each quarterly vest date thereafter. A quarterly vest date is the first market trading day on or after February 20, May 20, August 20, or November 20.

	By: Isabelle Bertin-Bailly, Attorney-in-Fact For: Mark Templeton	05/22/2026
	** 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)