Kenneth Duda - Aug 18, 2025 Form 4 Insider Report for Arista Networks, Inc. (ANET)

Role
CTO and SVP Software Eng., Director
Signature
By: Isabelle Bertin-Bailly, Attorney-in-Fact For: Kenneth Duda
Stock symbol
ANET
Transactions as of
Aug 18, 2025
Transactions value $
-$7,538,917
Form type
4
Date filed
8/20/2025, 07:22 PM
Previous filing
Jul 21, 2025
Next filing
Aug 22, 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Duda Kenneth CTO and SVP Software Eng., Director 5453 GREAT AMERICA PARKWAY, SANTA CLARA By: Isabelle Bertin-Bailly, Attorney-in-Fact For: Kenneth Duda 2025-08-20 0001605808

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction ANET Common Stock Options Exercise $105K +30K +231.2% $3.52 43K Aug 18, 2025 Direct F1
transaction ANET Common Stock Sale -$961K -7.09K -16.5% $135.57 35.9K Aug 18, 2025 Direct F1, F2
transaction ANET Common Stock Sale -$2.01M -14.7K -40.98% $136.47 21.2K Aug 18, 2025 Direct F1, F3
transaction ANET Common Stock Sale -$1.13M -8.2K -38.73% $137.39 13K Aug 18, 2025 Direct F1, F4
transaction ANET Common Stock Sale -$513K -3.78K -0.31% $135.57 1.22M Aug 18, 2025 By Childrens' Trust F2, F5, F6
transaction ANET Common Stock Sale -$1.07M -7.84K -0.64% $136.47 1.21M Aug 18, 2025 By Childrens' Trust F3, F5, F6
transaction ANET Common Stock Sale -$601K -4.38K -0.36% $137.39 1.21M Aug 18, 2025 By Childrens' Trust F4, F5, F6
transaction ANET Common Stock Sale -$320K -2.36K -0.41% $135.57 580K Aug 18, 2025 By Foundation F2, F7, F8
transaction ANET Common Stock Sale -$669K -4.9K -0.84% $136.47 575K Aug 18, 2025 By Foundation F3, F7, F8
transaction ANET Common Stock Sale -$376K -2.74K -0.48% $137.39 572K Aug 18, 2025 By Foundation F4, F7, F8
holding ANET Common Stock 750K Aug 18, 2025 By GRAT JD F9
holding ANET Common Stock 750K Aug 18, 2025 By GRAT KD F10
holding ANET Common Stock 25.6K Aug 18, 2025 by Trust F11

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction ANET Non-Qualified Stock Option (right to buy) Options Exercise $0 -30K -16.67% $0.00 150K Aug 18, 2025 Common Stock 30K $3.52 Direct F1, F12
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.

Transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c).

Explanation of Responses:

Id Content
F1 The exercise and/or sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on March 13, 2025.
F2 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $134.99 to $135.98, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
F3 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $135.9959 to $136.99, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
F4 The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $136.9979 to $137.90, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
F5 The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person for the benefit of the reporting person's children on March 13, 2025.
F6 These shares are held in a trust for the benefit of a Child of the reporting person for which the reporting person serves as co-trustee. The reporting person shares voting and investment control over the shares but disclaims beneficial ownership of the shares.
F7 The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into on March 13, 2025 by the reporting person's 501(c) Foundation, for which the reporting person and his spouse serve as co-trustee.
F8 These shares are held by a 501(c) Foundation for which the reporting person and his spouse serve as co-trustee.
F9 Reporting person's spouse is the trustee of the Jennifer Duda Annuity Trusts.
F10 Reporting person is the trustee of the Kenneth Duda Annuity Trusts.
F11 These shares are held by a family trust for which the reporting person is co-trustee.
F12 1/60th of the shares subject to the option vested and became exercisable on April 1, 2017 and 1/60th of the shares subject to the option shall vested monthly thereafter.