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[Form 4] Arista Networks Insider Trading Activity

Filing Impact
(High)
Filing Sentiment
(Very Negative)
Form Type
4
Rhea-AI Filing Summary

Kenneth Duda, CTO and SVP Software Engineering of Arista Networks (ANET), reported multiple transactions on 08/18/2025 under a Rule 10b5-1 plan. He exercised a non-qualified stock option to acquire 30,000 shares at an exercise price of $3.515. He sold multiple lots of common stock in several transactions at weighted-average prices of $135.5703, $136.4658 and $137.3889. The filing lists both direct and indirect holdings after the transactions, including indirect holdings in children鈥檚 trusts and a 501(c) foundation totaling over 1.2 million shares in some accounts, and indirect holdings of 750,000 shares each held by two grantor-retained annuity trusts (GRATs). The sales and option exercise were effected pursuant to previously adopted Rule 10b5-1 trading plans.

Kenneth Duda, CTO e SVP Software Engineering di Arista Networks (ANET), ha comunicato pi霉 operazioni il 18/08/2025 nell'ambito di un piano Rule 10b5-1. Ha esercitato un'opzione su azioni non qualificate per acquistare 30.000 azioni al prezzo di esercizio di $3,515. Ha venduto pi霉 blocchi di azioni ordinarie in diverse operazioni a prezzi medi ponderati di $135,5703, $136,4658 e $137,3889. Il deposito indica le partecipazioni dirette e indirette dopo le operazioni, comprese partecipazioni indirette in trust per minori e in una fondazione 501(c) per oltre 1,2 milioni di azioni in alcuni conti, oltre a partecipazioni indirette di 750.000 azioni detenute ciascuna da due grantor-retained annuity trust (GRAT). Le vendite e l'esercizio dell'opzione sono state eseguite ai sensi di piani di negoziazione Rule 10b5-1 precedentemente adottati.

Kenneth Duda, CTO y SVP de Ingenier铆a de Software de Arista Networks (ANET), inform贸 varias transacciones el 18/08/2025 bajo un plan Rule 10b5-1. Ejerci贸 una opci贸n sobre acciones no cualificada para adquirir 30.000 acciones a un precio de ejercicio de $3,515. Vendi贸 varios lotes de acciones ordinarias en distintas operaciones a precios promedio ponderados de $135,5703, $136,4658 y $137,3889. La presentaci贸n lista las tenencias directas e indirectas tras las operaciones, incluidas tenencias indirectas en fideicomisos para menores y una fundaci贸n 501(c) que suman m谩s de 1,2 millones de acciones en algunas cuentas, y tenencias indirectas de 750.000 acciones mantenidas por separado por dos grantor-retained annuity trusts (GRAT). Las ventas y el ejercicio de la opci贸n se realizaron conforme a planes de negociaci贸n Rule 10b5-1 adoptados previamente.

Arista Networks(ANET)鞚� CTO 瓴� 靻岉攧韸胳洦鞏� 鞐旍雼堨柎毵� 靾橃劃攵�靷灔(SVP)鞚� Kenneth Duda電� 2025雲� 8鞗� 18鞚� Rule 10b5-1 瓿勴殟鞐� 霐半ジ 雼れ垬鞚� 瓯半灅毳� 鞁犼碃頄堨姷雼堧嫟. 攴鸽姅 牍勳瀽瓴� 欤检嫕鞓奠厴鞚� 頄夓偓頃橃棳 頄夓偓臧�瓴� $3.515鞐� 30,000欤茧ゼ 旆摑頄堨姷雼堧嫟. 氤错喌欤� 鞐煬 氍鹅潓鞚� 臧�欷戫弶攴犼皜瓴� $135.5703, $136.4658, $137.3889搿� 鞐煬 瓯半灅鞐� 瓯胳硱 毵る弰頄堨姷雼堧嫟. 鞝滌稖靹滊鞐愲姅 瓯半灅 頉� 歆侁皠鞝� 氤挫湢雮挫棴鞚� 旮办灛霅橃柎 鞛堨溂氅�, 鞎勲彊 鞁犿儊瓿� 501(c) 鞛嫧鞚� 臧勳爲氤挫湢毳� 韽暔頃� 鞚茧秬 瓿勳鞐愳劀 齑� 120毵�欤� 鞚挫儊, 攴鸽Μ瓿� 臧侁皝 霊� 臧滌潣 grantor-retained annuity trust(GRAT)臧� 750,000欤检敥 臧勳爲 氤挫湢頃橁碃 鞛堧姅 瓴冹溂搿� 雮橅儉雮姷雼堧嫟. 頃措嫻 毵る弰鞕� 鞓奠厴 頄夓偓電� 靷爠鞐� 毂勴儩霅� Rule 10b5-1 瓯半灅瓿勴殟鞐� 霐半澕 鞚措（鞏挫鞀惦媹雼�.

Kenneth Duda, CTO et SVP Software Engineering d'Arista Networks (ANET), a d茅clar茅 plusieurs op茅rations le 18/08/2025 dans le cadre d'un plan Rule 10b5-1. Il a exerc茅 une option d'achat d'actions non qualifi茅e pour acqu茅rir 30 000 actions au prix d'exercice de 3,515 $. Il a vendu plusieurs lots d'actions ordinaires dans diff茅rentes transactions 脿 des prix moyens pond茅r茅s de 135,5703 $, 136,4658 $ et 137,3889 $. Le d茅p么t indique les avoirs directs et indirects apr猫s les op茅rations, y compris des avoirs indirects dans des trusts pour enfants et une fondation 501(c) totalisant plus de 1,2 million d'actions dans certains comptes, ainsi que des avoirs indirects de 750 000 actions d茅tenues chacun par deux grantor-retained annuity trusts (GRAT). Les ventes et l'exercice de l'option ont 茅t茅 effectu茅s conform茅ment 脿 des plans de trading Rule 10b5-1 adopt茅s ant茅rieurement.

Kenneth Duda, CTO und SVP Software Engineering von Arista Networks (ANET), meldete am 18.08.2025 mehrere Transaktionen im Rahmen eines Rule-10b5-1-Plans. Er 眉bte eine nicht qualifizierte Aktienoption aus und erwarb 30.000 Aktien zum Aus眉bungspreis von $3,515. Er verkaufte mehrere Partien von Stammaktien in verschiedenen Transaktionen zu gewichteten Durchschnittspreisen von $135,5703, $136,4658 und $137,3889. Die Einreichung f眉hrt nach den Transaktionen sowohl direkte als auch indirekte Best盲nde auf, darunter indirekte Best盲nde in Treuhandkonten f眉r Kinder und einer 501(c)-Stiftung mit insgesamt 眉ber 1,2 Millionen Aktien in einzelnen Konten sowie indirekte Best盲nde von je 750.000 Aktien, die von zwei grantor-retained annuity trusts (GRAT) gehalten werden. Die Verk盲ufe und die Aus眉bung der Option erfolgten gem盲脽 zuvor eingerichteten Rule-10b5-1-Handelspl盲nen.

Positive
  • Option exercise executed: 30,000 non-qualified stock option shares were exercised at $3.515.
  • Trades executed under Rule 10b5-1 plans, indicating prearranged sale programs for the reporting person, children鈥檚 trusts, and foundation.
  • Significant indirect holdings disclosed: certain trusts and foundation accounts report holdings in excess of 1.2 million shares and two GRATs hold 750,000 shares each.
Negative
  • Multiple share disposals by the reporting person and related trusts on 08/18/2025, including sale lots reported across several weighted-average prices.
  • Reduction in direct beneficial ownership reflected in the non-derivative table where direct holdings following transactions are lower than some prior positions (e.g., direct listed amounts such as 42,976, 35,884, 21,180, 12,976 in various lines).

Insights

TL;DR: Insider exercised options and sold stock under preplanned 10b5-1 programs; substantial indirect holdings remain.

The transactions show an exercise of 30,000 option shares at $3.515 and multiple sales executed at weighted-average prices between $135.57 and $137.39. Sales were implemented under 10b5-1 plans, indicating pre-scheduled dispositions rather than opportunistic trading. Post-transaction tables report significant indirect ownership through family trusts and a foundation, with certain accounts holding over 1.2 million shares, and two GRATs each holding 750,000 shares. For investors, these are routine executive liquidity actions and do not, by themselves, change disclosed long-term indirect ownership positions.

TL;DR: Trades conform to Rule 10b5-1 plans and include detailed disclosure of indirect holdings and trustee relationships.

The filing explicitly notes that trades for the reporting person, his children鈥檚 trusts, and his foundation were executed pursuant to Rule 10b5-1 plans adopted March 13, 2025. The disclosure identifies co-trustee roles and trustee arrangements, clarifying voting and investment control while disclaiming beneficial ownership where applicable. The form provides the weighted-average price ranges for multiple sale lots and commits to provide granular price information on request, meeting transparency expectations for Section 16 filings.

Kenneth Duda, CTO e SVP Software Engineering di Arista Networks (ANET), ha comunicato pi霉 operazioni il 18/08/2025 nell'ambito di un piano Rule 10b5-1. Ha esercitato un'opzione su azioni non qualificate per acquistare 30.000 azioni al prezzo di esercizio di $3,515. Ha venduto pi霉 blocchi di azioni ordinarie in diverse operazioni a prezzi medi ponderati di $135,5703, $136,4658 e $137,3889. Il deposito indica le partecipazioni dirette e indirette dopo le operazioni, comprese partecipazioni indirette in trust per minori e in una fondazione 501(c) per oltre 1,2 milioni di azioni in alcuni conti, oltre a partecipazioni indirette di 750.000 azioni detenute ciascuna da due grantor-retained annuity trust (GRAT). Le vendite e l'esercizio dell'opzione sono state eseguite ai sensi di piani di negoziazione Rule 10b5-1 precedentemente adottati.

Kenneth Duda, CTO y SVP de Ingenier铆a de Software de Arista Networks (ANET), inform贸 varias transacciones el 18/08/2025 bajo un plan Rule 10b5-1. Ejerci贸 una opci贸n sobre acciones no cualificada para adquirir 30.000 acciones a un precio de ejercicio de $3,515. Vendi贸 varios lotes de acciones ordinarias en distintas operaciones a precios promedio ponderados de $135,5703, $136,4658 y $137,3889. La presentaci贸n lista las tenencias directas e indirectas tras las operaciones, incluidas tenencias indirectas en fideicomisos para menores y una fundaci贸n 501(c) que suman m谩s de 1,2 millones de acciones en algunas cuentas, y tenencias indirectas de 750.000 acciones mantenidas por separado por dos grantor-retained annuity trusts (GRAT). Las ventas y el ejercicio de la opci贸n se realizaron conforme a planes de negociaci贸n Rule 10b5-1 adoptados previamente.

Arista Networks(ANET)鞚� CTO 瓴� 靻岉攧韸胳洦鞏� 鞐旍雼堨柎毵� 靾橃劃攵�靷灔(SVP)鞚� Kenneth Duda電� 2025雲� 8鞗� 18鞚� Rule 10b5-1 瓿勴殟鞐� 霐半ジ 雼れ垬鞚� 瓯半灅毳� 鞁犼碃頄堨姷雼堧嫟. 攴鸽姅 牍勳瀽瓴� 欤检嫕鞓奠厴鞚� 頄夓偓頃橃棳 頄夓偓臧�瓴� $3.515鞐� 30,000欤茧ゼ 旆摑頄堨姷雼堧嫟. 氤错喌欤� 鞐煬 氍鹅潓鞚� 臧�欷戫弶攴犼皜瓴� $135.5703, $136.4658, $137.3889搿� 鞐煬 瓯半灅鞐� 瓯胳硱 毵る弰頄堨姷雼堧嫟. 鞝滌稖靹滊鞐愲姅 瓯半灅 頉� 歆侁皠鞝� 氤挫湢雮挫棴鞚� 旮办灛霅橃柎 鞛堨溂氅�, 鞎勲彊 鞁犿儊瓿� 501(c) 鞛嫧鞚� 臧勳爲氤挫湢毳� 韽暔頃� 鞚茧秬 瓿勳鞐愳劀 齑� 120毵�欤� 鞚挫儊, 攴鸽Μ瓿� 臧侁皝 霊� 臧滌潣 grantor-retained annuity trust(GRAT)臧� 750,000欤检敥 臧勳爲 氤挫湢頃橁碃 鞛堧姅 瓴冹溂搿� 雮橅儉雮姷雼堧嫟. 頃措嫻 毵る弰鞕� 鞓奠厴 頄夓偓電� 靷爠鞐� 毂勴儩霅� Rule 10b5-1 瓯半灅瓿勴殟鞐� 霐半澕 鞚措（鞏挫鞀惦媹雼�.

Kenneth Duda, CTO et SVP Software Engineering d'Arista Networks (ANET), a d茅clar茅 plusieurs op茅rations le 18/08/2025 dans le cadre d'un plan Rule 10b5-1. Il a exerc茅 une option d'achat d'actions non qualifi茅e pour acqu茅rir 30 000 actions au prix d'exercice de 3,515 $. Il a vendu plusieurs lots d'actions ordinaires dans diff茅rentes transactions 脿 des prix moyens pond茅r茅s de 135,5703 $, 136,4658 $ et 137,3889 $. Le d茅p么t indique les avoirs directs et indirects apr猫s les op茅rations, y compris des avoirs indirects dans des trusts pour enfants et une fondation 501(c) totalisant plus de 1,2 million d'actions dans certains comptes, ainsi que des avoirs indirects de 750 000 actions d茅tenues chacun par deux grantor-retained annuity trusts (GRAT). Les ventes et l'exercice de l'option ont 茅t茅 effectu茅s conform茅ment 脿 des plans de trading Rule 10b5-1 adopt茅s ant茅rieurement.

Kenneth Duda, CTO und SVP Software Engineering von Arista Networks (ANET), meldete am 18.08.2025 mehrere Transaktionen im Rahmen eines Rule-10b5-1-Plans. Er 眉bte eine nicht qualifizierte Aktienoption aus und erwarb 30.000 Aktien zum Aus眉bungspreis von $3,515. Er verkaufte mehrere Partien von Stammaktien in verschiedenen Transaktionen zu gewichteten Durchschnittspreisen von $135,5703, $136,4658 und $137,3889. Die Einreichung f眉hrt nach den Transaktionen sowohl direkte als auch indirekte Best盲nde auf, darunter indirekte Best盲nde in Treuhandkonten f眉r Kinder und einer 501(c)-Stiftung mit insgesamt 眉ber 1,2 Millionen Aktien in einzelnen Konten sowie indirekte Best盲nde von je 750.000 Aktien, die von zwei grantor-retained annuity trusts (GRAT) gehalten werden. Die Verk盲ufe und die Aus眉bung der Option erfolgten gem盲脽 zuvor eingerichteten Rule-10b5-1-Handelspl盲nen.

SEC Form 4
FORM 4 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number: 3235-0287
Estimated average burden
hours per response: 0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
X
 Check this box to indicate that a 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). See Instruction 10.
1. Name and Address of Reporting Person*
Duda Kenneth
(Last) (First) (Middle)
5453 GREAT AMERICA PARKWAY
(Street)
SANTA CLARA CA 95054
(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
Arista Networks, Inc. [ ANET ] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
X Director 10% Owner
X Officer (give title below) Other (specify below)
CTO and SVP Software Eng.
3. Date of Earliest Transaction (Month/Day/Year)
08/18/2025
4. If Amendment, Date of Original Filed (Month/Day/Year)
 6. Individual or Joint/Group Filing (Check Applicable Line)
X Form filed by One Reporting Person
Form filed by More than One Reporting Person
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 08/18/2025 M(1) 30,000 A $3.515 42,976 D
Common Stock 08/18/2025 S(1) 7,092 D $135.5703(2) 35,884 D
Common Stock 08/18/2025 S(1) 14,704 D $136.4658(3) 21,180 D
Common Stock 08/18/2025 S(1) 8,204 D $137.3889(4) 12,976 D
Common Stock 08/18/2025 S(5) 3,782 D $135.5703(2) 1,219,386 I By Childrens' Trust(6)
Common Stock 08/18/2025 S(5) 7,843 D $136.4658(3) 1,211,543 I By Childrens' Trust(6)
Common Stock 08/18/2025 S(5) 4,375 D $137.3889(4) 1,207,168 I By Childrens' Trust(6)
Common Stock 08/18/2025 S(7) 2,364 D $135.5703(2) 580,036 I By Foundation(8)
Common Stock 08/18/2025 S(7) 4,901 D $136.4658(3) 575,135 I By Foundation(8)
Common Stock 08/18/2025 S(7) 2,735 D $137.3889(4) 572,400 I By Foundation(8)
Common Stock 750,000 I By GRAT JD(9)
Common Stock 750,000 I By GRAT KD(10)
Common Stock 25,615 I by Trust(11)
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year) 7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Non-Qualified Stock Option (right to buy) $3.515 08/18/2025 M(1) 30,000 (12) 02/11/2026 Common Stock 30,000 $0.0 150,000 D
Explanation of Responses:
1. 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.
2. 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.
3. 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.
4. 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.
5. 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.
6. 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.
7. 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.
8. These shares are held by a 501(c) Foundation for which the reporting person and his spouse serve as co-trustee.
9. Reporting person's spouse is the trustee of the Jennifer Duda Annuity Trusts.
10. Reporting person is the trustee of the Kenneth Duda Annuity Trusts.
11. These shares are held by a family trust for which the reporting person is co-trustee.
12. 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.
By: Isabelle Bertin-Bailly, Attorney-in-Fact For: Kenneth Duda 08/20/2025
** Signature of Reporting Person Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

Source:

FAQ

What insider transactions did Kenneth Duda (ANET) report on 08/18/2025?

He exercised 30,000 option shares at $3.515 and sold multiple lots of common stock under Rule 10b5-1 plans at weighted-average prices of $135.5703, $136.4658, and $137.3889.

Were the sales by Kenneth Duda preplanned or discretionary?

The filing states the sales were effected pursuant to Rule 10b5-1 trading plans adopted on March 13, 2025 for the reporting person, his children鈥檚 trusts, and his foundation.

How much indirect Arista stock does Kenneth Duda control through trusts and foundations?

The filing discloses indirect holdings including over 1.2 million shares in some children鈥檚 trust accounts, a 501(c) foundation holding similar seven-figure amounts, and two GRATs holding 750,000 shares each.

What option holdings remain after the reported transactions?

Following the reported transactions, the Form 4 lists 150,000 common shares underlying held options as directly beneficially owned.

Does the filing provide price ranges for the individual sale transactions?

Yes. The filing provides weighted-average prices and notes the underlying sale price ranges for each weighted average and commits to provide per-lot price details on request to the company or SEC staff.
Stock ANET logo
Arista Networks Inc

NYSE:ANET

ANET Rankings

#80 Ranked by Market Cap
N/A Ranked by Dividends

ANET Latest News

Aug 5, 2025
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Arista Networks to Announce Q2 2025 Financial Results on Tuesday, August 5, 2025
Jul 1, 2025
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May 6, 2025
Arista Networks, Inc. Reports First Quarter 2025 Financial Results
Apr 8, 2025
Arista Networks to Announce Q1 2025 Financial Results on Tuesday, May 6, 2025

ANET Latest SEC Filings

Aug 21, 2025
[Form 4] Arista Networks Insider Trading Activity
Aug 12, 2025
[Form 4] Arista Networks Insider Trading Activity
Aug 11, 2025
[Form 4] Arista Networks Insider Trading Activity
Aug 8, 2025
[Form 4] Arista Networks Insider Trading Activity
Aug 6, 2025
[144] Arista Networks SEC Filing

ANET Stock Data

165.24B
1.03B
18%
69.14%
1.43%
Computer Hardware
Computer Communications Equipment
United States
SANTA CLARA