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Arista Networks, Inc.·4

Mar 19, 7:03 PM ET

Duda Kenneth 4

4 · Arista Networks, Inc. · Filed Mar 19, 2026

Research Summary

AI-generated summary of this filing

Updated

Arista (ANET) CTO Kenneth Duda Exercises Options, Sells Shares

What Happened

  • Kenneth Duda, President & CTO (and a director) of Arista Networks, reported on March 19, 2026 transactions that occurred on March 17, 2026. He exercised 32,000 option shares at $15.26 per share (cost: $488,400) and the filing records a separate conversion/derivative entry for 32,000 shares reported with $0.00 consideration. In addition, Duda sold a total of 58,000 shares in multiple open-market transactions that generated approximately $7,780,320 in proceeds (sales executed at prices roughly in the $132.47–$136.41 range across the reported lots).
  • This activity is primarily sales (monetizing shares) combined with option exercise. Sales are often routine but are informative to investors as insider liquidity events.

Key Details

  • Transaction date: March 17, 2026; filing date: March 19, 2026 (appears timely).
  • Option exercise: 32,000 shares @ $15.26 = $488,400. Additional derivative conversion of 32,000 shares reported at $0.00 consideration.
  • Open-market sales: 58,000 shares in multiple lots, total proceeds ≈ $7,780,320; prices reported as weighted averages and individual lots ranged roughly $132.47–$136.41 (see filing footnotes for exact price breakdowns).
  • Shares owned after the transactions: not specified in the supplied details of this summary/transaction set.
  • Notable footnotes: several transactions were effected pursuant to Rule 10b5-1 trading plans entered March 13, 2025 (filing notes plans for the reporting person, for the benefit of his children, and for a 501(c) foundation). Other footnotes note family trusts/annuity trusts and trustee roles; weighted-average pricing footnotes indicate multiple execution prices and offer to provide detailed breakdowns on request.

Context

  • This filing shows an option exercise followed by same-day open-market sales of shares — a common pattern where insiders exercise options and sell some or all of the resulting shares (sometimes to cover exercise costs and taxes). The filing also includes a derivative conversion entry reported at $0.00; consult the full SEC filing or contact the company for precise mechanics if needed.
  • The transactions were disclosed under standard insider rules and accompanied by 10b5-1 plan disclosures, which indicate pre-arranged trading instructions rather than ad-hoc market timing.

Insider Transaction Report

Form 4
Period: 2026-03-17
Arista Networks, Inc.ANET
Duda Kenneth
DirectorPresident and CTO
Transactions
  • Exercise/Conversion

    Common Stock

    [F1]
    2026-03-17$15.26/sh+32,000$488,400→ 44,976 total
  • Sale

    Common Stock

    [F1][F2]
    2026-03-17$133.03/sh−7,401$984,588→ 37,575 total
  • Sale

    Common Stock

    [F1][F3]
    2026-03-17$134.02/sh−14,005$1,876,894→ 23,570 total
  • Sale

    Common Stock

    [F1][F4]
    2026-03-17$134.88/sh−8,581$1,157,397→ 14,989 total
  • Sale

    Common Stock

    [F1][F5]
    2026-03-17$135.97/sh−2,013$273,712→ 12,976 total
  • Sale

    Common Stock

    [F6][F2][F7]
    2026-03-17$133.03/sh−3,701$492,361→ 1,107,467 total(indirect: By Trust)
  • Sale

    Common Stock

    [F6][F3][F7]
    2026-03-17$134.02/sh−7,003$938,514→ 1,100,464 total(indirect: By Trust)
  • Sale

    Common Stock

    [F6][F4][F7]
    2026-03-17$134.88/sh−4,290$578,631→ 1,096,174 total(indirect: By Trust)
  • Sale

    Common Stock

    [F6][F5][F7]
    2026-03-17$135.97/sh−1,006$136,788→ 1,095,168 total(indirect: By Trust)
  • Sale

    Common Stock

    [F8][F2][F9]
    2026-03-17$133.03/sh−2,313$307,709→ 510,087 total(indirect: By Foundation)
  • Sale

    Common Stock

    [F8][F3][F9]
    2026-03-17$134.02/sh−4,377$586,588→ 505,710 total(indirect: By Foundation)
  • Sale

    Common Stock

    [F8][F4][F9]
    2026-03-17$134.88/sh−2,681$361,611→ 503,029 total(indirect: By Foundation)
  • Sale

    Common Stock

    [F8][F5][F9]
    2026-03-17$135.97/sh−629$85,527→ 502,400 total(indirect: By Foundation)
  • Exercise/Conversion

    Non-Qualified Stock Option (right to buy)

    [F1][F13]
    2026-03-17−32,000→ 64,000 total
    Exercise: $15.26Exp: 2028-04-12→ Common Stock (32,000 underlying)
Holdings

  • Common Stock

    [F10]
    (indirect: By GRAT JD)
    702,147

  • Common Stock

    [F11]
    (indirect: By GRAT KD)
    702,147

  • Common Stock

    [F12]
    (indirect: By Trust)
    201,134
Footnotes (13)
  • [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.
  • [F10]Reporting person's spouse is the trustee of the Jennifer Duda Annuity Trusts.
  • [F11]Reporting person is the trustee of the Kenneth Duda Annuity Trusts.
  • [F12]These shares are held by a family trust for which the reporting person is co-trustee.
  • [F13]1/48th of the shares subject to the option shall vest and become exercisable on June 1, 2020 and 1/48th of the shares subject to the option shall continue to vest each month thereafter.
  • [F2]The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $132.47 to $133.4683, 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 $133.47 to $134.4696, 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 $134.475 to $135.4697, 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 price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $135.4874 to $136.41, 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.
  • [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 13, 2025.
  • [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 the shares but disclaims beneficial ownership of the shares.
  • [F8]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.
  • [F9]These shares are held by a 501(c) Foundation for which the reporting person and his spouse serve as co-trustee.
Signature
By: Isabelle Bertin-Bailly, Attorney-in-Fact For: Kenneth Duda|2026-03-19

Documents

1 file
  • 4
    edgardoc.xmlPrimary

    PRIMARY DOCUMENT