ANET holder plans sale of 92000 shares under Rule 144

ANET has a holder planning to sell 92000 shares of common stock under Rule 144.

Rhea-AI Filing Summary

ANET has a holder planning to sell 92000 shares of common stock under Rule 144. The shares are to be sold through J.P. Morgan Securities LLC on the NYSE, with an approximate sale date of 12/17/2025 and an aggregate market value of 11603960 stated in the notice.

The 92000 shares were acquired on 12/17/2025 via a cash stock option exercise from the issuer. The notice also lists recent sales over the prior three months by Kenneth Duda, trusts bearing the Duda name, and the Foundation for Truth, Justice, and Compassion, each involving blocks of common shares with multi-million dollar gross proceeds. The number of shares or other units outstanding is 1259285070; this is a baseline figure, not the amount being sold.

FAQ

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

How many ANET common shares are proposed to be sold under this Rule 144 notice?

The notice covers the proposed sale of 92000 shares of ANET common stock. This amount appears in the securities information table as the "Number of Shares or Other Units To Be Sold" for the common stock class.

Through which broker and exchange will the 92000 ANET shares be sold?

The 92000 ANET common shares are to be sold through J.P. Morgan Securities LLC, with the securities information table naming the trading venue as the NYSE in the "Name the Securities Exchange" field.

How were the ANET shares covered by this notice acquired?

The securities-to-be-sold table states that the 92000 common shares were acquired on 12/17/2025 via a Stock Option Exercise from the issuer, with the "Nature of Payment" listed as Cash and the "Amount of Securities Acquired" matching 92000.

What recent ANET share sales over the past three months does this notice disclose?

The notice lists multiple ANET common stock sales during the past three months, including Kenneth Duda selling 30000 shares on 09/17/2025 for gross proceeds of 4248950.97 and 30000 shares on 10/17/2025 for gross proceeds of 4282398, with similar 30000 share sales on 11/17/2025 and additional sales by Duda-named trusts and the Foundation for Truth, Justice, and Compassion.

What aggregate market value is associated with the planned 92000-share ANET sale?

The securities information table reports an aggregate market value of 11603960 for the common shares to be sold, alongside the 92000-share amount and the NYSE as the named securities exchange.

How many ANET shares are outstanding according to this notice?

The same securities information table states the "Number of Shares or Other Units Outstanding" as 1259285070, providing a baseline figure for the issuer's total common stock outstanding.

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

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Accepted by SEC EDGAR 12/17/2025 - 06:39 PM 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	92000	11603960	1259285070	12/17/2025	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	12/17/2025	Stock Option Exercise	Issuer			92000	12/17/2025	Cash

* 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	09/17/2025	30000	4248950.97
Kenneth Duda C/O Issuer 5453 Great America Parkway Santa Clara CA 95054	Common	10/17/2025	30000	4282398
Kenneth Duda C/O Issuer 5453 Great America Parkway Santa Clara CA 95054	Common	11/17/2025	30000	3858423
Molly Hsu-Mei Duda 2017 Trust C/O Issuer 5453 Great America Parkway Santa Clara CA 95054	Common	09/17/2025	8000	1133053.59
Molly Hsu-Mei Duda 2017 Trust C/O Issuer 5453 Great America Parkway Santa Clara CA 95054	Common	10/17/2025	8000	1141972.80
Molly Hsu-Mei Duda 2017 Trust C/O Issuer 5453 Great America Parkway Santa Clara CA 95054	Common	11/17/2025	8000	1028912.8
Sophie Hsu-Tsen Duda 2017 Trust C/O Issuer 5453 Great America Parkway Santa Clara CA 95054	Common	09/17/2025	8000	1133053.59
Sophie Hsu-Tsen Duda 2017 Trust C/O Issuer 5453 Great America Parkway Santa Clara CA 95054	Common	10/17/2025	8000	1141972.80
Sophie Hsu-Tsen Duda 2017 Trust C/O Issuer 5453 Great America Parkway Santa Clara CA 95054	Common	11/17/2025	8000	1028912.8
Foundation for Truth, Justice, and Compassion C/O Issuer 5453 Great America Parkway Santa Clara CA 95054	Common	09/17/2025	10000	1416316.99
Foundation for Truth, Justice, and Compassion C/O Issuer 5453 Great America Parkway Santa Clara CA 95054	Common	10/17/2025	10000	1427466.00
Foundation for Truth, Justice, and Compassion C/O Issuer 5453 Great America Parkway Santa Clara CA 95054	Common	11/17/2025	10000	1286141

144: Remarks and Signature

Remarks	The sales under this filing are from Cashless Option Exercises that will occur within 3 months from the date of this filing.
Date of Notice	12/17/2025
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	03/13/2025
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)