Arista Networks Inc SEC Filings

Charles Giancarlo, a director of Arista Networks (ANET), reported multiple open-market sales of common stock executed under a Rule 10b5-1 trading plan. The Form 4 shows a total of 220,607 shares disposed across several transactions on 09/19/2025 at weighted-average prices ranging roughly from $146.76 to $149.91. Remaining reported beneficial ownership varies by vehicle: shares are held in a Charitable Remainder Trust and a family trust for which he is co-trustee, with reported post-transaction beneficial holdings in those trusts (examples include 39,263, 18,630, and 49,812 shares). The filings include footnotes disclosing the 10b5-1 plan and weighted-average price ranges for grouped sales.

Kenneth Duda, President and CTO and a director of Arista Networks (ANET), reported transactions under a Rule 10b5-1 plan on 09/17/2025. He exercised a non-qualified stock option to acquire 30,000 shares at an exercise price of $3.515. Concurrently he sold multiple blocks of common stock in a series of transactions at weighted-average prices ranging from about $139.14 to $143.35, with individual sale lots shown and weighted-average prices disclosed. Following the reported transactions, direct beneficial ownership reflects 120,000 derivative shares exercisable and varying direct share counts. Substantial additional holdings are reported indirectly through children’s trusts, a foundation, GRATs, and family trusts with reported indirect share counts (for example 1,206,654 and 762,035 in certain vehicles).

Arista Networks (ANET) Form 144 notifies a proposed sale of 82,000 common shares through J.P. Morgan Securities LLC with an aggregate market value of 12,026,120. The filing lists 1,256,865,381 shares outstanding and an approximate sale date of 09/19/2025. Acquisition history for the shares shows a 50,000 lot from a 06/09/2025 stock option exercise (Giancarlo Family Trust), 844 shares from RSU vesting on 08/20/2024, and 31,156 from a 03/12/2014 option exercise. The filer certifies no undisclosed material adverse information and reports no sales in the past three months.

Form 144 notice for Arista Networks (ANET) discloses a proposed sale of 30,000 common shares through J.P. Morgan Securities (scheduled approx. 09/17/2025) with an aggregate market value listed as $4,264,800 and 1,256,865,381 shares outstanding. The shares were recorded as acquired by gift on 12/29/2021 from Kenneth Duda. The filing also lists recent sales by related parties during June–August 2025: three monthly sales of 30,000 shares by Kenneth Duda (gross proceeds of $2,766,894, $3,335,757, and $4,095,195) and multiple trust/foundation sales of 8,000–10,000 shares each month with listed gross proceeds.

Arista Networks Form 144: This notice reports a proposed sale of 24,000 shares of Arista Networks common stock through J.P. Morgan Securities with an aggregate market value of $3,411,840 and an approximate sale date of 09/17/2025. The shares were distributed to the filer on 02/27/2025 as a Grantor Annuity Trust distribution from Kenneth and Jennifer Duda. The filing also discloses prior open-market sales by related parties over the past three months: Kenneth Duda sold 90,000 shares (three sales of 30,000), two 2017 trusts each sold 24,000 (three sales of 8,000 each), and a foundation sold 30,000 (three sales of 10,000 each), for a combined 168,000 shares sold in the prior three months. Total shares outstanding are reported as 1,256,865,381, indicating these transactions are a small fraction of outstanding shares.

Arista Networks Form 144 notice reports a proposed sale of 24,000 common shares through J.P. Morgan Securities (NYSE) with an aggregate market value of $3,411,840 and an approximate sale date of 09/17/2025. The shares were received on 02/27/2025 as a Grantor Annuity Trust distribution from Kenneth and Jennifer Duda. The filer certifies no undisclosed material adverse information and the filing identifies prior sales by related parties during the past three months, including multiple sales by Kenneth Duda (three sales of 30,000 shares each) and sales by trusts and a foundation, reflecting ongoing disposition activity by related persons.

Form 144 notice from an insider of Arista Networks, Inc. (ANET) reports a proposed sale of 90,000 common shares to be executed through J.P. Morgan Securities LLC on the NYSE on 09/17/2025 with an aggregate market value of $12,794,400. The shares were acquired the same day by stock option exercise and paid for in cash. The filing lists the issuer's outstanding shares as 1,256,865,381. The filing also discloses multiple recent insider sales during June–August 2025 by Kenneth Duda, related trusts, and a foundation, totaling 168,000 shares sold for aggregate gross proceeds of $11,334,653.6 as shown in the table.

Jayshree Ullal, CEO and Chair of Arista Networks (ANET), reported multiple sales of company common stock on 09/10/2025. The filings show a series of dispositions executed under a Rule 10b5-1 trading plan adopted December 13, 2024, with weighted-average prices disclosed in ranges from $145.00 up to $150.65 per share. The report lists multiple blocks sold for trusts established for the reporting person’s children, for family trusts where she is co-trustee, and for trusts for a nephew and niece. Holdings following the reported transactions are shown for each trust, including totals such as 19,247,010 shares held by one family trust and smaller trusts holding 30,000 shares each for a nephew and niece. The form was signed by an attorney-in-fact on behalf of Ms. Ullal.

Jayshree Ullal, CEO and Chairperson of Arista Networks (ANET), reported multiple sales of Arista common stock on 09/08/2025 executed under pre-established Rule 10b5-1 trading plans. The Form 4 shows discrete dispositions tied to trusts for family members and family trusts for which Ms. Ullal is trustee or co-trustee. Reported weighted-average prices for the sales ranged from $143.00 to $144.10 per share; the filing notes sales occurred in multiple transactions within those price ranges. After the reported transactions, the filing lists various beneficial ownership totals by trust, including positions of 5,556,153; 5,555,373; and 20,154,457 shares, and additional smaller trust holdings. The report was submitted by an attorney-in-fact on behalf of Ms. Ullal.