[Form 4] Arista Networks, Inc. Insider Trading Activity

Rhea-AI Filing Summary

Arista Networks (ANET) director Mark Templeton reported a routine equity compensation transaction. On 11/20/2025, he exercised or settled a derivative award coded "M" for 971 shares of Common Stock at an exercise price of $0.0 per share, reflecting vesting of restricted stock units.

After this transaction, he directly beneficially owned 55,930 shares of Arista Networks common stock. An additional 75,200 shares were reported as indirectly owned in a trust for which his spouse serves as trustee. Following the RSU transaction, 1,942 restricted stock units remained beneficially owned as derivative securities.

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

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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 CA 95054

(City) (State) (Zip)

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)

3. Date of Earliest Transaction (Month/Day/Year)
11/20/2025

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

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

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

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	11/20/2025		M		971	A	$0.0(1)	55,930	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)	11/20/2025		M			971	(3)	(3)	Common Stock	971	$0.0	1,942	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	11/24/2025
	** 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.

FAQ

What insider transaction did Arista Networks (ANET) director Mark Templeton report?

Mark Templeton reported a transaction coded "M" on 11/20/2025, involving the settlement of 971 restricted stock units into Arista Networks Common Stock at an exercise price of $0.0 per share.

How many Arista Networks (ANET) shares does Mark Templeton own after this Form 4?

After the reported transaction, Mark Templeton beneficially owned 55,930 shares of Arista Networks common stock directly and 75,200 shares indirectly through a trust for which his spouse serves as trustee.

What derivative securities were involved in Mark Templetons Arista Networks (ANET) filing?

The filing shows a Restricted Stock Unit award with an exercise price of $0.0. On 11/20/2025, 971 RSUs were settled into common stock, leaving 1,942 RSUs beneficially owned as derivative securities.

How do Mark Templetons Arista Networks (ANET) RSUs vest?

The RSUs were granted on May 30, 2025. According to the disclosure, 1/4 of the shares vest on August 20, 2025 and continue to vest at the same rate on each quarterly vest date, which is the first market trading day on or after February 20, May 20, August 20, or November 20.

What is the significance of the indirect ownership reported for Arista Networks (ANET)?

The filing states that 75,200 shares of Arista Networks common stock are held in a trust for which the reporting persons spouse serves as trustee, and these are reported as indirectly owned shares.

What does each restricted stock unit represent in the Arista Networks (ANET) Form 4?

Each restricted stock unit represents a contingent right to receive one share of Arista Networks, Inc. common stock upon vesting, as described in the explanation of responses.