Transaction · 0001596532-26-000210

Duda Kenneth

Duda Kenneth, PRES, reported an open-market or private sale at Arista Networks, Inc. involving 5750.000000 shares for an estimated $1064797.08. Reported holdings after the transaction were 20362.000000 shares. The stored filing text includes a detected 10b5-1 reference.

Open-market sellSEC transaction code SPRES
ANETArista Networks, Inc.
Filing timeAug 24
Trade dateAug 20, 2026
Filing · SECView on SEC
InsiderProfile

Price performance since filing

Close on the filing date, the pre-filing context, and the forward return at standard windows
Price at filing
$188.15
Pre-filing
1mo ago -7.2%1w ago +8.2%1d ago -0.9%
Returns since
7d +1.0%30d +1.0%90d +1.0%180d +1.0%1y +1.0%

ANET price since this filing

30 days of pre-filing context and vertical markers at the filing date plus 7d / 30d / 90d / 180d / 1y afterwards
ANET since 2026-08-24Filed 10 days ago · 30 days of pre-filing context shaded
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Filing datePost-filing windows (7d, 30d, 90d, 180d, 1y)30 days of pre-filing context

Transaction facts

Stored Form 4 columns with their raw values

Non-derivative
Type
Sell
Code S
Identifier
0001596532-26-000210
Common Stock
Transaction date
Aug 20, 2026
Filed Aug 24, 2026, 10:14 PM · 4d delay
Shares
5.75k sh
$18.5k per share
Estimated value
-$106M
Computed from shares × price
Holdings after
20.3k sh
Direct

Filing signal explanations

Badges describe filing facts only — not predictions.

Cluster 14dRepeat 30dPattern $10.0MLarge $100M
Direct Ownership Large Holdings Reduction Large Sale Repeat Seller 10b5-1 Detected
-4score
Filing-only score

-4

Compact filing score computed from stored Form 4 facts. Version v1.

Neutral filing signal

This filing is broadly neutral on the filing-only scale. The Form 4 facts do not strongly tilt positive or negative.

Reported relationships & other filings

Form 4 relationship flags and nearby filing context

Reported roles

President and CTO

Officer YesDirector Yes10% NoOther No
Footnotes & amended
  1. 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 11, 2026.

  2. F2

    The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $183.72 to $184.7176, inclusive. The reporting person undertakes to p…

  3. F3

    The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $184.72 to $185.719, inclusive. The reporting person undertakes to pr…

  4. F4

    The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $185.7311 to $186.7213, inclusive. The reporting person undertakes to…

  5. F5

    The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $186.7331 to $187.16, inclusive. The reporting person undertakes to p…

  6. F6

    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 11, 2026.

  7. F7

    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…

  8. F8

    The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into on March 11, 2026 by the reporting person's 501(c) Foundation, for which the reporting person and his spouse serve a…

  9. F9

    These shares are held by a 501(c) Foundation for which the reporting person and his spouse serve as co-trustee.

  10. F10

    Each restricted stock unit represents a contingent right to receive one share of Arista Networks, Inc. Common Stock upon vesting.

  11. F11

    These shares are held by a family trust for which the reporting person is co-trustee.

  12. F12

    Represents shares withheld to satisfy tax withholding obligations on the vesting of restricted stock units.

  13. F13

    Reporting person's spouse is the trustee of the Jennifer Duda Annuity Trusts.

  14. F14

    Reporting person is the trustee of the Kenneth Duda Annuity Trusts.

  15. F15F16(2 footnotes)

    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.

  16. F17

    Six and one-quarter percent (6.25%) of the restricted stock units awarded vested on February 20, 2026 and will continue to vest at the same rate on each quarterly vest date thereafter. A quarterly ves…

  17. F18

    Six and one-quarter percent (6.25%) of the restricted stock units awarded vested on on February 20, 2024 and will continue to vest at the same rate on each quarterly vest date thereafter. A quarterly…

  18. F19

    Six and one-quarter percent (6.25%) of the restricted stock units awarded vested on February 20, 2025 and will continue to vest at the same rate on each quarterly vest date thereafter. A quarterly ves…

  19. F20

    Five percent (5%) of the restricted stock awarded vested on November 20, 2025 and will continue to vest at the same rate on each quarterly vest date thereafter. A quarterly vest date is the first mar…

  20. F21

    Six and one-quarter percent (6.25%) of the restricted stock units awarded vested on February 20, 2023 and will continue to vest at the same rate on each quarterly vest date thereafter. A quarterly ve…

Original filing · 0001596532-26-000210
Related transactions

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Same reporting owner
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