# EDGAR Filing Document

**Accession Number:** 0001596532
**File Stem:** 0001596532-26-000099
**Filing Date:** 2026-5
**Character Count:** 9742
**Document Hash:** 18615200ec3be3b5ad2cc7ffbea1b034
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001596532-26-000099.hdr.sgml**: 20260522

**ACCESSION NUMBER**: 0001596532-26-000099

**CONFORMED SUBMISSION TYPE**: 4

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20260520

**FILED AS OF DATE**: 20260522

**DATE AS OF CHANGE**: 20260522

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Duda Kenneth
- **CENTRAL INDEX KEY:** 0001605808

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-36468
- **FILM NUMBER:** 261015461

**MAIL ADDRESS:**
- **STREET 1:** C/O ARISTA NETWORKS, INC.
- **STREET 2:** 5453 GREAT AMERICA PARKWAY
- **CITY:** SANTA CLARA
- **STATE:** CA
- **ZIP:** 95054
**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

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

## FORM 4

### STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

[ ] 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**<sup>*</sup><br>Duda Kenneth<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. Date of Earliest Transaction (Month/Day/Year)**<br>2026-05-20 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[X] Director [ ] 10% Owner<br>[X] Officer (give title below) [ ] Other (specify below)<br>_President and CTO_ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>Arista Networks, Inc. [ ANET ] | **4. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  | **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

---

|  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | 3. Transaction Code (V) | 3. Transaction Code (V) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | Code | V | Amount | (A) or (D) | Price | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| Common Stock | 2026-05-20 |  | M |  | 3884 | A | 0.0<sup>(1)</sup> | 205018 | I | by Trust<sup>(2)</sup> |
| Common Stock | 2026-05-20 |  | M |  | 4148 | A | 0.0<sup>(1)</sup> | 209166 | I | by Trust<sup>(2)</sup> |
| Common Stock | 2026-05-20 |  | M |  | 1836 | A | 0.0<sup>(1)</sup> | 211002 | I | by Trust<sup>(2)</sup> |
| Common Stock | 2026-05-20 |  | M |  | 19816 | A | 0.0<sup>(1)</sup> | 230818 | I | by Trust<sup>(2)</sup> |
| Common Stock | 2026-05-20 |  | M |  | 1350 | A | 0.0<sup>(1)</sup> | 232168 | I | by Trust<sup>(2)</sup> |
| Common Stock | 2026-05-20 |  | F<sup>(3)</sup> |  | 15545 | D | $141.58 | 216623 | I | by Trust<sup>(2)</sup> |
| Common Stock |  |  |  |  |  |  |  | 12976 | D |  |
| Common Stock |  |  |  |  |  |  |  | 1063168 | I | By Childrens' Trust<sup>(4)</sup> |
| Common Stock |  |  |  |  |  |  |  | 482400 | I | By Foundation<sup>(5)</sup> |
| Common Stock |  |  |  |  |  |  |  | 702147 | I | By GRAT JD<sup>(6)</sup> |
| Common Stock |  |  |  |  |  |  |  | 702147 | I | By GRAT KD<sup>(7)</sup> |

---

## Table II - Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | 4. Transaction Code (V) | 4. Transaction Code (V) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 6. Date Exercisable and Expiration Date | 6. Date Exercisable and Expiration Date | 7. Title and Amount of Underlying Securities | 7. Title and Amount of Underlying Securities | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | Code | V | (A) | (D) | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| Restricted Stock Unit - 17 | 0.0<sup>(1)</sup> | 2026-05-20 |  | M |  |  | 1350 | <sup>(8)</sup> | <sup>(8)</sup> | Common Stock | 1350 | $0.0 | 18900 | D |  |
| Restricted Stock Unit-11 | 0.0<sup>(1)</sup> | 2026-05-20 |  | M |  |  | 4148 | <sup>(9)</sup> | <sup>(9)</sup> | Common Stock | 4148 | $0.0 | 24884 | D |  |
| Restricted Stock Unit-13 | 0.0<sup>(1)</sup> | 2026-05-20 |  | M |  |  | 1836 | <sup>(10)</sup> | <sup>(10)</sup> | Common Stock | 1836 | $0.0 | 18348 | D |  |
| Restricted Stock Unit-14 | 0.0<sup>(1)</sup> | 2026-05-20 |  | M |  |  | 19816 | <sup>(11)</sup> | <sup>(11)</sup> | Common Stock | 19816 | $0.0 | 336872 | D |  |
| Restricted Stock Unit-8 | 0.0<sup>(1)</sup> | 2026-05-20 |  | M |  |  | 3884 | <sup>(12)</sup> | <sup>(12)</sup> | Common Stock | 3884 | $0.0 | 7764 | D |  |

---

### Footnotes:

(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 by a family trust for which the reporting person is co-trustee.

(3) Represents shares withheld to satisfy tax withholding obligations on the vesting of restricted stock units.

(4) These shares are held in a trust for the benefit of a Child of the reporting person for which the reporting person serves as co-trustee.  The reporting person shares voting and investment control over the shares but disclaims beneficial ownership of the shares.

(5) These shares are held by a 501(c) Foundation for which the reporting person and his spouse serve as co-trustee.

(6) Reporting person's spouse is the trustee of the Jennifer Duda Annuity Trusts.

(7) Reporting person is the trustee of the Kenneth Duda Annuity Trusts.

(8) Six and one-quarter percent (6.25%) of the restricted stock units awarded vested on February 20, 2026 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, and November 20 of each year.

(9) Six and one-quarter percent (6.25%) of the restricted stock units awarded vested on on February 20, 2024 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, and November 20 of each year.

(10) Six and one-quarter percent (6.25%) of the restricted stock units awarded vested on February 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, and November 20 of each year.

(11) Five percent (5%) of the restricted stock awarded vested on November 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, and November 20 of each year.

(12) Six and one-quarter percent (6.25%) of the restricted stock units awarded vested on February 20, 2023 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, and November 20 of each year.

**Signature:** By: Isabelle Bertin-Bailly, Attorney-in-Fact For: Kenneth Duda  
**Date:** 2026-05-22

### 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.**