Arista Networks holder proposes $120K stock sale

Rhea-AI Filing Summary

Arista Networks, Inc. (ANET) is named as the issuer in a notice of proposed sale of securities filed for the account of Chantelle Breithaupt under Rule 144. The filing covers 612 shares of common stock, associated with restricted stock units, with a referenced value of $119,762.28 and a per-share figure of $126.122464. The common stock is listed on the NYSE, and Morgan Stanley Smith Barney LLC Executive Financial Services is identified in connection with the transaction.

Key Figures

Shares of common stock: 612 shares Referenced value of shares: $119,762.28 Per-share figure: $126.122464 +2 more

5 metrics

Shares of common stock 612 shares Number of Arista Networks, Inc. common shares proposed to be sold under Rule 144

Referenced value of shares $119,762.28 Total value associated with 612 ANET shares in the securities information section

Per-share figure $126.122464 Per-share figure listed alongside 612 ANET common shares

Shares underlying Restricted Stock Units 612 shares Number of shares tied to restricted stock units in the securities-to-be-sold section

Issuer phone 4085475000 Contact phone number for Arista Networks, Inc.

Key Terms

Rule 144, Restricted Stock Units, NYSE

3 terms

Rule 144 regulatory

"See the 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.

Restricted Stock Units financial

"Common | 08/20/2026 | Restricted Stock Units | Issuer"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

NYSE market

"126122464 | 09/01/2026 | NYSE"

A large, regulated marketplace where stocks and other securities are listed and traded, acting like a global auction house that matches buyers and sellers and helps determine share prices. It matters to investors because listing and trading there provide liquidity, price discovery, and regulatory oversight—making it easier to buy or sell holdings and giving companies a visible platform that can affect credibility and access to capital.

FAQ

What does the Form 144 filing for ANET disclose about shares to be sold?

The Form 144 filing discloses a proposed sale of 612 shares of Arista Networks, Inc. common stock for the account of Chantelle Breithaupt, with a referenced value of $119,762.28 and an indicated per-share figure of $126.122464.

Who is the person for whose account ANET shares are to be sold?

The person for whose account Arista Networks, Inc. (ANET) shares are to be sold is Chantelle Breithaupt, identified in the filing in connection with 612 shares of common stock related to restricted stock units.

How many Arista Networks (ANET) shares are covered by this Form 144 notice?

The notice covers 612 shares of Arista Networks, Inc. common stock. These shares are tied to restricted stock units and are listed in the securities information and securities-to-be-sold sections of the Form 144 filing.

What valuation figures are associated with the ANET shares in this Form 144?

The filing lists a total value of $119,762.28 for the 612 shares of Arista Networks, Inc. common stock, along with a per-share figure of $126.122464, in connection with the proposed Rule 144 sale.

Which broker or financial services firm is referenced in the ANET Form 144?

The filing references Morgan Stanley Smith Barney LLC Executive Financial Services, located at 1 New York Plaza, in connection with the 612 shares of Arista Networks, Inc. common stock proposed to be sold under Rule 144.

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

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Available on EDGAR 09/01/2026 - 04:50 PM Accepted by SEC EDGAR 09/01/2026 - 04:49 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	0001850596
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	4085475000
Name of Person for Whose Account the Securities are To Be Sold	CHANTELLE BREITHAUPT
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	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	612	119762.28	126122464	09/01/2026	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	08/20/2026	Restricted Stock Units	Issuer			612	08/20/2026	N/A

* 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

Nothing to Report

144: Remarks and Signature

Remarks
Date of Notice	09/01/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	06/02/2026
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/ Chantelle Breithaupt
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)