Arista Networks Form 144: Ullal sold 112,812 shares

Arista Networks reported a Form 144 resale notice showing specified blocks of Common Stock tied to prior option exercises and a recent sale.

Rhea-AI Filing Summary

Arista Networks reported a Form 144 resale notice showing specified blocks of Common Stock tied to prior option exercises and a recent sale. The excerpt lists 112,812 shares sold by Jayshree Ullal on 04/13/2026 for $16,934,671.85, and option-related quantities dated 09/22/2008 (250,000) and 12/31/2013 (100,000).

Key Figures

Shares sold (recent): 112,812 shares Aggregate sale value: $16,934,671.85 Option-origin lot: 250,000 shares +2 more

5 metrics

Shares sold (recent) 112,812 shares sale date 04/13/2026

Aggregate sale value $16,934,671.85 proceeds reported for 112,812 shares on 04/13/2026

Option-origin lot 250,000 shares stock option exercise dated 09/22/2008

Option-origin lot 100,000 shares stock option exercise dated 12/31/2013

Broker quantity field 350,000 listed with Fidelity Brokerage Services LLC entry

Key Terms

Form 144, stock option exercise, issuer

3 terms

Form 144 regulatory

"144: Securities Sold During The Past 3 Months"

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

stock option exercise financial

"09/22/2008 | stock option exercise | Issuer"

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"

FAQ

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

What does Arista Networks' (ANET) Form 144 show?

It reports an insider resale notice of Common Stock. The excerpt lists a sale of 112,812 shares on 04/13/2026 valued at $16,934,671.85, plus option-originated lots dated 09/22/2008 and 12/31/2013.

Who sold shares in the recent Form 144 for ANET?

The seller listed is Jayshree Ullal. The filing shows Ullal's sale of 112,812 shares on 04/13/2026 with an indicated aggregate value of $16,934,671.85.

Are the shares in the Form 144 from option exercises?

Yes — some lots originate from stock option exercises. The excerpt shows option exercise entries dated 09/22/2008 (250,000) and 12/31/2013 (100,000), which are listed as securities to be sold.

Does the filing state who receives the sale proceeds?

The excerpt does not assign proceeds to a party explicitly. The lines list issuer and exercise dates but do not state whether proceeds go to the issuer or selling holder in the provided text.

Where was the sale executed according to the excerpt?

The filing references Fidelity Brokerage Services LLC. An entry shows Fidelity Brokerage Services LLC at 245 Summer Street, Boston with a quantity field of 350,000, indicating broker details in the submission.

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

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Accepted by SEC EDGAR 04/16/2026 - 04:23 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	0001605809
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	Ullal Jayshree
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
Relationship to Issuer	Director

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 Stock	Fidelity Brokerage Services LLC 245 Summer Street Boston MA 02110	350000	55760635.00	1256537906	04/16/2026	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 Stock	09/22/2008	stock option exercise	Issuer			250000	09/22/2008	Wire
Common Stock	12/31/2013	stock option exercise	Issuer			100000	12/31/2013	Wire

* 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
Jayshree Ullal C/O Arista Networks, Inc. 5453 GREAT AMERICA PARKWAY Santa Clara CA 95054	Common Stock	04/13/2026	112812	16934671.85

144: Remarks and Signature

Remarks	50,000 sold fromThe Tarini Ullal Trust 50,000 sold from The Adeeti Ullal Trust 250,000 sold from 2000 Ullal Family Trust
Date of Notice	04/16/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	11/14/2025
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	Audrey Skillern, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Jayshree Ullal
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)