[144] Arista Networks, Inc. SEC Filing

Rhea-AI Filing Summary

Form 144 notice from an insider of Arista Networks, Inc. (ANET) reports a proposed sale of 90,000 common shares to be executed through J.P. Morgan Securities LLC on the NYSE on 09/17/2025 with an aggregate market value of $12,794,400. The shares were acquired the same day by stock option exercise and paid for in cash. The filing lists the issuer's outstanding shares as 1,256,865,381. The filing also discloses multiple recent insider sales during June–August 2025 by Kenneth Duda, related trusts, and a foundation, totaling 168,000 shares sold for aggregate gross proceeds of $11,334,653.6 as shown in the table.

Positive

• Securities were acquired via stock option exercise on 09/17/2025, with payment in cash as disclosed
• Planned sale assigned to a major broker (J.P. Morgan Securities LLC) and listed to trade on the NYSE

Negative

• Multiple recent insider-related sales in June–August 2025 totaling 168,000 shares as disclosed in the filing
• Aggregate gross proceeds for recent sales shown as $11,334,653.6, indicating ongoing insider liquidity in recent months

Insights

Securities Analyst

TL;DR: Routine insider sale notice showing option exercise followed by a planned market sale; multiple related recent disposals.

The filing documents a proposed public sale of 90,000 Arista Networks common shares via J.P. Morgan on 09/17/2025, acquired the same day through a stock option exercise and paid in cash. The disclosed aggregate market value for this block is $12,794,400 against 1,256,865,381 shares outstanding, indicating the transaction is a single insider liquidity event. The three-month history shows repeated, scheduled sales by the same insider and related entities totaling 168,000 shares, with detailed gross proceeds per tranche. This is a disclosure of intent to sell rather than an operational or financial performance indicator.

Corporate Governance Expert

TL;DR: Compliance-focused filing documenting Rule 144 sale mechanics and recent affiliated sales; procedural disclosure appears complete.

The notice furnishes required Rule 144 information: identity of broker (J.P. Morgan Securities LLC), nature of acquisition (stock option exercise), payment method (cash), proposed sale date (09/17/2025), and outstanding share count (1,256,865,381). It also lists prior sales by the insider and related trusts/foundation in June–August 2025 with exact amounts and gross proceeds. The signature/remarks section includes the standard representation about absence of undisclosed material adverse information. From a governance standpoint, the form contains the expected elements for a compliant Form 144 submission.

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

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

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

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 360 Madison Avenue - 6th Floor New York NY 10017	90000	12794400	1256865381	09/17/2025	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	09/17/2025	Stock Option Exercise	Issuer			90000	09/17/2025	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	06/17/2025	30000	2766894
Kenneth Duda C/O Issuer 5453 Great America Parkway Santa Clara CA 95054	Common	07/17/2025	30000	3335757
Kenneth Duda C/O Issuer 5453 Great America Parkway Santa Clara CA 95054	Common	08/18/2025	30000	4095195
Molly Hsu-Mei Duda 2017 Trust C/O Issuer 5453 Great America Parkway Santa Clara CA 95054	Common	06/17/2025	8000	737838.4
Molly Hsu-Mei Duda 2017 Trust C/O Issuer 5453 Great America Parkway Santa Clara CA 95054	Common	07/17/2025	8000	889535.2
Molly Hsu-Mei Duda 2017 Trust C/O Issuer 5453 Great America Parkway Santa Clara CA 95054	Common	08/18/2025	8000	1092052
Sophie Hsu-Tsen Duda 2017 Trust C/O Issuer 5453 Great America Parkway Santa Clara CA 95054	Common	06/17/2025	8000	737838.4
Sophie Hsu-Tsen Duda 2017 Trust C/O Issuer 5453 Great America Parkway Santa Clara CA 95054	Common	07/17/2025	8000	889535.2
Sophie Hsu-Tsen Duda 2017 Trust C/O Issuer 5453 Great America Parkway Santa Clara CA 95054	Common	08/18/2025	8000	1092052
Foundation for Truth, Justice, and Compassion C/O Issuer 5453 Great America Parkway Santa Clara CA 95054	Common	06/17/2025	10000	922298
Foundation for Truth, Justice, and Compassion C/O Issuer 5453 Great America Parkway Santa Clara CA 95054	Common	07/17/2025	10000	1111919
Foundation for Truth, Justice, and Compassion C/O Issuer 5453 Great America Parkway Santa Clara CA 95054	Common	08/18/2025	10000	1365065

144: Remarks and Signature

Remarks

Date of Notice

Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1

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

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)

FAQ

What is being reported in the ANET Form 144 filing?

The filing reports a proposed sale of 90,000 Arista Networks common shares to be sold on 09/17/2025 through J.P. Morgan Securities LLC with an aggregate market value of $12,794,400.

How were the 90,000 ANET shares acquired?

The shares were acquired on 09/17/2025 by stock option exercise and payment was made in cash, as stated in the filing.

Who is the broker handling the ANET sale and where will it trade?

J.P. Morgan Securities LLC is listed as the broker and the sale is to be executed on the NYSE.

What recent insider sales are disclosed in the filing for ANET?

June–August 2025 sales by related parties total 168,000 shares (Kenneth Duda 90,000; two trusts 48,000 combined; foundation 30,000) with aggregate gross proceeds of $11,334,653.6.

How many Arista shares are outstanding according to the filing?

The filing reports 1,256,865,381 shares outstanding.