STOCK TITAN

Arista Networks (ANET) CTO exercises 17,333 stock options under plan

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Arista Networks, Inc. President and CTO Kenneth Duda reported an option exercise and updated share holdings. He exercised a Non-Qualified Stock Option to acquire 17,333 shares of common stock at an exercise price of $15.2769 per share, characterized as a derivative exercise rather than an open-market purchase. The filing also shows 106,890 shares of common stock held indirectly by a family trust for which he is co-trustee. The option activity was carried out under a Rule 10b5-1 trading plan, indicating it was pre-scheduled rather than a discretionary market-timed trade.

Positive

  • None.

Negative

  • None.
Insider Duda Kenneth
Role President and CTO
Type Security Shares Price Value
Exercise Non-Qualified Stock Option (right to buy) 17,333 $0.00 --
holding Common Stock -- -- --
Holdings After Transaction: Non-Qualified Stock Option (right to buy) — 30,667 shares (Direct, null); Common Stock — 106,890 shares (Indirect, by Trust)
Footnotes (1)
  1. These shares are held by a family trust for which the reporting person is co-trustee. 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 11, 2026. 1/48th of the shares subject to the option shall vest and become exercisable on December 1, 2020 and 1/48th of the shares subject to the option shall continue to vest each month thereafter.
Options exercised 17,333 shares Non-Qualified Stock Option exercise on 2026-06-22
Option exercise price $15.2769 per share Strike price for 17,333 underlying shares
Indirect trust holdings 106,890 shares Common stock held by family trust as of 2026-06-22
Option expiration 2028-11-08 Expiration date of the Non-Qualified Stock Option
Option vesting schedule 1/48 monthly Vests 1/48 on 2020-12-01 and monthly thereafter
Non-Qualified Stock Option financial
"Non-Qualified Stock Option (right to buy)"
A non-qualified stock option (NSO) is a contract that lets an employee or service provider buy company shares at a fixed price for a set period, like a voucher to purchase stock later at today’s price. It matters to investors because exercising NSOs creates ordinary income for the holder and can increase share count, affecting a company’s earnings and ownership mix; think of it as a future sale that can dilute existing shareholders and has immediate tax consequences for the recipient.
Rule 10b5-1 trading plan regulatory
"exercise and/or sale of shares was effected pursuant to a Rule 10b5-1 trading plan"
A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.
family trust financial
"These shares are held by a family trust for which the reporting person is co-trustee."
co-trustee financial
"family trust for which the reporting person is co-trustee."
derivative security financial
"Exercise or conversion of derivative security"
A derivative security is a financial contract whose value comes from the price or performance of something else, such as a stock, bond, commodity, or market index. For investors it acts like an insurance policy or a wager: it can be used to protect against losses, lock in prices, or amplify gains and losses, so it can change a portfolio’s risk and potential return without owning the underlying asset directly.
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Learn about SEC filing dates
SEC Form 4
FORM 4UNITED 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 CALIFORNIA 95054

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
Arista Networks, Inc. [ ANET ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
XDirector10% Owner
XOfficer (give title below)Other (specify below)
President and CTO
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
06/22/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

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)
CodeVAmount(A) or (D)Price
Common Stock106,890Iby Trust(1)
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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Non-Qualified Stock Option (right to buy)$15.276906/22/2026M(2)17,333 (3)11/08/2028Common Stock17,333$0.030,667D
Explanation of Responses:
1. These shares are held by a family trust for which the reporting person is co-trustee.
2. 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 11, 2026.
3. 1/48th of the shares subject to the option shall vest and become exercisable on December 1, 2020 and 1/48th of the shares subject to the option shall continue to vest each month thereafter.
By: Isabelle Bertin-Bailly, Attorney-in-Fact For: Kenneth Duda06/24/2026
** Signature of Reporting PersonDate
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.
* Form 4: SEC 1474 (03-26)

FAQ

What insider transaction did Arista Networks (ANET) report for Kenneth Duda?

Arista Networks reported that President and CTO Kenneth Duda exercised a Non-Qualified Stock Option to acquire 17,333 shares of common stock. This was a derivative exercise, not an open-market purchase, and reflects the use of previously granted equity compensation rather than a new investment.

At what price did Kenneth Duda exercise his Arista Networks (ANET) stock options?

Kenneth Duda exercised stock options with an exercise price of $15.2769 per share for 17,333 underlying common shares. This price reflects the grant’s strike price, not the market price on the exercise date, and comes from a long-term equity award vesting schedule.

How many Arista Networks (ANET) shares are held by Kenneth Duda’s family trust?

The filing shows 106,890 shares of Arista Networks common stock held indirectly by a family trust where Kenneth Duda serves as co-trustee. This entry updates the reported indirect holdings and does not itself represent a new purchase or sale transaction in the open market.

Was Kenneth Duda’s Arista Networks (ANET) option exercise part of a Rule 10b5-1 plan?

Yes, the filing states the exercise and/or sale of shares was effected under a Rule 10b5-1 trading plan entered into on March 11, 2026. Such pre-arranged plans schedule trades in advance, reducing the significance of the exact timing of this option exercise activity.

What type of derivative security did Kenneth Duda exercise at Arista Networks (ANET)?

Kenneth Duda exercised a Non-Qualified Stock Option, described as a right to buy Arista Networks common stock. The transaction covered 17,333 underlying shares and is part of his equity compensation, vesting monthly over 48 months according to the vesting footnote in the filing.