Arista Networks: Duda trust proposes $4.39M sale

The notice identifies the Sophie Hsu-Tsen Duda 2017 Trust as the seller, with Kenneth Duda acting as trustee.

Rhea-AI Filing Summary

Arista Networks, Inc. (ANET) is named as issuer in a Rule 144 notice for a proposed sale of 24,000 common shares. The notice lists an aggregate market value of $4,390,800 and an approximate sale date of October 20, 2026. It is filed for officer Kenneth Duda; the remarks identify Sophie Hsu-Tsen Duda 2017 Trust as the seller, with Kenneth Duda acting as trustee. The shares are described as received through a Grantor Annuity Trust distribution from Kenneth and Jennifer Duda on June 10, 2024.

Key Figures

Proposed sale: 24,000 common shares Aggregate market value: $4,390,800 Shares outstanding: 1,261,224,648 shares

3 metrics

Proposed sale 24,000 common shares Approximate sale date October 20, 2026

Aggregate market value $4,390,800 Proposed sale

Shares outstanding 1,261,224,648 shares Issuer share count listed with the proposed-sale information

Key Terms

Rule 144, Grantor Annuity Trust distribution, attorney-in-fact

3 terms

Rule 144 regulatory

"definition of "person" in paragraph (a) of Rule 144"

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

Grantor Annuity Trust distribution financial

"Grantor Annuity Trust distribution"

attorney-in-fact regulatory

"as agent and attorney-in-fact for Kenneth Duda"

An attorney-in-fact is the person or entity given legal authority through a power of attorney to act on behalf of another for specific tasks, such as signing documents, voting shares, or handling transactions. For investors, this matters because it lets a trusted representative make timely decisions or complete paperwork when the owner cannot, much like handing keys to someone to run errands on your behalf—so checks on scope and limits of that authority are important.

FAQ

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

How many ANET shares are proposed for sale?

The proposed sale covers 24,000 common shares, with an aggregate market value of $4,390,800 and an approximate sale date of October 20, 2026.

Who is selling the ANET shares, and how were they acquired?

The Sophie Hsu-Tsen Duda 2017 Trust is identified as the seller, with Kenneth Duda, an officer of Arista Networks, Inc., acting as trustee. The shares are described as received through a Grantor Annuity Trust distribution from Kenneth and Jennifer Duda on June 10, 2024.

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

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Available on EDGAR 10/20/2026 - 04:22 PM EDT Accepted by SEC EDGAR 10/20/2026 - 04:21 PM EDT Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001605808
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	Arista Networks, Inc.
SEC File Number	001-36468
Address of Issuer	5453 Great America Parkway Santa Clara CALIFORNIA 95054
Phone	408-547-5500
Name of Person for Whose Account the Securities are To Be Sold	Kenneth Duda
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Officer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	J.P. Morgan Securities LLC 270 Park Avenue - 10th Floor New York NY 10017	24000	4390800	1261224648	10/20/2026	NYSE

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	06/10/2024	Grantor Annuity Trust distribution	Kenneth and Jennifer Duda			24000	06/10/2024	NA

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
Kenneth Duda C/O Issuer 5453 Great America Parkway Santa Clara CA 95054	Common	08/20/2026	17333	3213861
Kenneth Duda C/O Issuer 5453 Great America Parkway Santa Clara CA 95054	Common	09/21/2026	17333	3527236
Molly Hsu-Mei Duda 2017 Trust C/O Issuer 5453 Great America Parkway Santa Clara CA 95054	Common	08/20/2026	8000	1483349
Molly Hsu-Mei Duda 2017 Trust C/O Issuer 5453 Great America Parkway Santa Clara CA 95054	Common	09/21/2026	8000	1627986
Sophie Hsu-Tsen Duda 2017 Trust C/O Issuer 5453 Great America Parkway Santa Clara CA 95054	Common	08/20/2026	8000	1483349
Sophie Hsu-Tsen Duda 2017 Trust C/O Issuer 5453 Great America Parkway Santa Clara CA 95054	Common	09/21/2026	8000	1627986
Foundation for Truth, Justice, and Compassion C/O Issuer 5453 Great America Parkway Santa Clara CA 95054	Common	08/20/2026	10000	1854186
Foundation for Truth, Justice, and Compassion C/O Issuer 5453 Great America Parkway Santa Clara CA 95054	Common	09/21/2026	10000	2034983

144: Remarks and Signature

Remarks	The shares filed for today will be sold by Sophie Hsu-Tsen Duda 2017 Trust - Kenneth Duda as Trustee.
Date of Notice	10/20/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	03/11/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ J.P. Morgan Securities LLC as agent and attorney-in-fact for Kenneth Duda
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)