# EDGAR Filing Document

**Accession Number:** 0001944844
**File Stem:** 0001596532-25-000189
**Filing Date:** 2025-7
**Character Count:** 6142
**Document Hash:** 2245dcfe8a6eca90facf26446e735f98
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001596532-25-000189.hdr.sgml**: 20250711

**ACCESSION NUMBER**: 0001596532-25-000189

**CONFORMED SUBMISSION TYPE**: 3

**PUBLIC DOCUMENT COUNT**: 2

**CONFORMED PERIOD OF REPORT**: 20250701

**FILED AS OF DATE**: 20250711

**DATE AS OF CHANGE**: 20250711

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Nightingale Todd
- **CENTRAL INDEX KEY:** 0001944844

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** 3
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-36468
- **FILM NUMBER:** 251118306

**MAIL ADDRESS:**
- **STREET 1:** C/O FASTLY, INC.
- **STREET 2:** 475 BRANNAN SUITE 300
- **CITY:** SAN FRANCISCO
- **STATE:** CA
- **ZIP:** 94107
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Arista Networks, Inc.
- **CENTRAL INDEX KEY:** 0001596532
- **STANDARD INDUSTRIAL CLASSIFICATION:** COMPUTER COMMUNICATIONS EQUIPMENT [3576]
- **ORGANIZATION NAME:** 06 Technology
- **EIN:** 201751121
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**BUSINESS ADDRESS:**
- **STREET 1:** 5453 GREAT AMERICA PARKWAY
- **CITY:** SANTA CLARA
- **STATE:** CA
- **ZIP:** 95054
- **BUSINESS PHONE:** 408-547-5500

**MAIL ADDRESS:**
- **STREET 1:** 5453 GREAT AMERICA PARKWAY
- **CITY:** SANTA CLARA
- **STATE:** CA
- **ZIP:** 95054

## Ex-24

```

POWER OF ATTORNEY
The undersigned, as a section 16 reporting person of Arista
Networks, Inc. (the "Company"), hereby constitutes and appoints
Chantelle Breithaupt, Isabelle Bertin-Bailly, Paul Efstathiu
and Sean Christofferson, the undersigned true and lawful
attorneys-in-fact to:

1. complete and execute Forms 3, 4 and 5 and other forms and all
amendments thereto as such attorneys-in-fact shall in their
discretion determine to be required or advisable pursuant to
Section 16 of the Securities Exchange Act of 1934 (as amended)
and the rules and regulations promulgated thereunder, or any
successor laws and regulations, as a consequence of the
undersigned's ownership, acquisition or disposition of
securities of the company; and

2. do all acts necessary in order to file such forms with the
Securities and Exchange Commission, any securities exchange or
national association, the Company and such other person or
agency as the attorneys-in-fact shall deem appropriate.

The undersigned hereby ratifies and confirms all that said
attorneys-in-fact and agent shall do or cause to be done by
virtue hereof. The undersigned acknowledges that the foregoing
attorney's-in-fact, in serving in such capacity at the request
of the undersigned, is not assuming, nor is the Company
assuming, any of the undersigned's responsibilities to comply
with Section 16 of the Securities Exchange Act of 1934 (as
amended). This Power of Attorney shall remain in full force and
effect until the undersigned is no longer required to file
Forms 3, 4 and 5 with respect to the undersigned's holdings of
and transactions in securities issued by the Company, unless
earlier revoked by the undersigned in the signed writing
delivered to the Company and the foregoing attorneys-in-fact.

IN WITNESS WHEREOF, the undersigned has caused this Power of
Attorney to be executed as of this 1st day of July, 2025.

Signature:/s/ Todd Nightingale
Print Name: Todd Nightingale

```

### UNITED STATES SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## FORM 3

### INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

[ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>Nightingale Todd<br><sub>(Last) (First) (Middle)</sub><br>5453 GREAT AMERICA PARKWAY<br><sub>(Street)</sub><br>SANTA CLARA, CA 95054<br><sub>(City) (State) (Zip)</sub> | **3. Issuer Name and Ticker or Trading Symbol**<br>Arista Networks, Inc. [ ANET ] | **5. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  |
| **2. Date of Event Requiring Statement (Month/Day/Year)**<br>2025-07-01 | **4. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[ ] Director   [ ] 10% Owner<br>[X] Officer (give title below)   [ ] Other (specify below)<br>_President and COO_ | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[X] Form filed by One Reporting Person<br>[ ] Form filed by More than One Reporting Person |

---

## Table I - Non-Derivative Securities Beneficially Owned

---

|  |  |  |  |
| --- | --- | --- | --- |
| 1. Title of Security | 2. Amount of Securities Beneficially Owned | 3. Ownership Form | 4. Nature of Indirect Beneficial Ownership |

---

## Table II - Derivative Securities Beneficially Owned

---

|  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Date Exercisable and Expiration Date (Month/Day/Year) | 2. Date Exercisable and Expiration Date (Month/Day/Year) | 3. Title and Amount of Underlying Securities | 3. Title and Amount of Underlying Securities | 4. Conversion or Exercise Price | 5. Ownership Form | 6. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 4. Conversion or Exercise Price | 5. Ownership Form | 6. Nature of Indirect Beneficial Ownership |
|  |  |  |  |  |  |  |  |

---

**Signature:** By: Isabelle Bertin-Bailly, Attorney-in-Fact For: Todd Nightingale  
**Date:** 2025-07-10

### Remarks:

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.**