ANET Form 144: Related parties sold shares under Rule 144

Company ANET reported Rule 144 notices for recent dispositions of Common stock by related holders.

Rhea-AI Filing Summary

Company ANET reported Rule 144 notices for recent dispositions of Common stock by related holders. The excerpt lists multiple sales tied to stock option exercises and cash transactions, including sales on 04/17/2026, 05/18/2026, and 06/22/2026. Individual entries show 32,000 shares sold by Kenneth Duda on each of 04/17/2026 and 05/18/2026, and trusts and a foundation selling amounts of 8,000 and 10,000 shares on the same dates. The filing names J.P. Morgan Securities LLC as the broker for the transactions on 06/22/2026.

Insights

Securities Compliance Analyst

These are routine Rule 144 resale notices reporting option-related sales by affiliated holders.

Form 144 entries list specific sale dates and share amounts tied to stock option exercises and cash settlements, including multiple 32,000-share and 8,000-share dispositions on 04/17/2026 and 05/18/2026. The broker identified is J.P. Morgan Securities LLC for a 06/22/2026 transaction.

Timing and cash‑flow treatment are stated as "Cash" and "Stock Option Exercise" in the excerpt; further details such as proceeds or Rule 144 holding-period confirmations are not provided in the text. Subsequent SEC filings would show completion or additional context.

Key Figures

Kenneth Duda sale: 32,000 shares Trust sales: 8,000 shares Foundation sale: 10,000 shares +1 more

4 metrics

Kenneth Duda sale 32,000 shares sale on <date>04/17/2026 and again on <date>05/18/2026

Trust sales 8,000 shares each trust sold on <date>04/17/2026 and <date>05/18/2026

Foundation sale 10,000 shares Foundation for Truth, Justice, and Compassion sold on <date>04/17/2026 and <date>05/18/2026

Broker J.P. Morgan Securities LLC listed for transaction on <date>06/22/2026

Key Terms

Rule 144, Stock Option Exercise, Issuer, Cash

4 terms

Rule 144 regulatory

"144: Securities Sold During The Past 3 Months"

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.

Stock Option Exercise financial

"Common | 06/22/2026 | Stock Option Exercise"

A stock option exercise is the act of using a previously granted right to buy shares of a company's stock at a specific, predetermined price by paying that price and receiving the shares. It matters to investors because exercising changes who owns the shares (which can dilute existing ownership), can trigger taxable events and shift potential gains or losses, and affects voting power and the company’s outstanding share count—like turning a voucher into an actual product that becomes part of circulating supply.

Issuer regulatory

"Stock Option Exercise | Issuer"

Cash financial

"06/22/2026 | Cash"

FAQ

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

What does ANET's Form 144 filing show about sales by Kenneth Duda?

It reports Kenneth Duda sold 32,000 shares on 04/17/2026 and another 32,000 shares on 05/18/2026. The entries are listed under "Common" stock and tied to prior option-related holdings.

Which other holders are listed in the ANET Form 144 excerpt?

The excerpt lists trusts and an organization: two trusts (each selling 8,000 shares on 04/17/2026 and 05/18/2026) and the Foundation for Truth, Justice, and Compassion (selling 10,000 shares on the same dates).

What transaction types and broker are identified in the ANET excerpt?

Transaction types include "Stock Option Exercise" and settlement in "Cash"; the broker named for a 06/22/2026 entry is J.P. Morgan Securities LLC at 270 Park Avenue, New York.

Do the Form 144 entries specify proceeds or price for the ANET sales?

The provided excerpt lists share counts and transaction dates but does not state sale prices or aggregate proceeds; it records method as "Cash" and references stock option exercises without showing dollar amounts.

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

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Accepted by SEC EDGAR 06/22/2026 - 04:17 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	69332	12108140	1259202593	06/22/2026	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	06/22/2026	Stock Option Exercise	Issuer			69332	06/22/2026	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	04/17/2026	32000	5225978
Kenneth Duda C/O Issuer 5453 Great America Parkway Santa Clara CA 95054	Common	05/18/2026	32000	4482710
Molly Hsu-Mei Duda 2017 Trust C/O Issuer 5453 Great America Parkway Santa Clara CA 95054	Common	04/17/2026	8000	1306494
Molly Hsu-Mei Duda 2017 Trust C/O Issuer 5453 Great America Parkway Santa Clara CA 95054	Common	05/18/2026	8000	1120678
Sophie Hsu-Tsen Duda 2017 Trust C/O Issuer 5453 Great America Parkway Santa Clara CA 95054	Common	04/17/2026	8000	1306494
Sophie Hsu-Tsen Duda 2017 Trust C/O Issuer 5453 Great America Parkway Santa Clara CA 95054	Common	05/18/2026	8000	1120678
Foundation for Truth, Justice, and Compassion C/O Issuer 5453 Great America Parkway Santa Clara CA 95054	Common	04/17/2026	10000	1633118
Foundation for Truth, Justice, and Compassion C/O Issuer 5453 Great America Parkway Santa Clara CA 95054	Common	05/18/2026	10000	1400847

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	06/22/2026
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)