Arista Networks reported Form 144 notices for shares sold by Jayshree Ullal. The filings list five Common Stock dispositions executed via wire on 04/13/2026, 04/16/2026, 04/20/2026, 04/21/2026, and 04/22/2026, totaling 1,290,812 shares in aggregate across those dates. Each line in the excerpt shows the share count and gross proceeds for the specific sale.
Arista Networks, Inc. CEO and Chairperson Jayshree Ullal reported routine equity compensation activity involving restricted stock units that vested into common stock. She acquired 27,664 shares of common stock through the exercise of restricted stock units and, on the same date, 13,855 shares were withheld to cover tax obligations, leaving 23,726 shares held directly afterward.
The filing also lists large indirect holdings in various trusts. A family trust associated with Ullal holds 17,482,010 shares. Additional trusts for the benefit of her children and relatives hold several million more shares; she serves as trustee or co‑trustee for these and disclaims beneficial ownership of those trust-held shares.
Arista Networks, Inc. President and CTO Kenneth Duda reported the vesting and exercise of restricted stock units into 31,034 shares of Common Stock on May 20, 2026, with shares delivered to family trusts.
An affiliated family trust held 216,623 shares after these transactions. 15,545 shares were withheld at $141.5800 per share to satisfy tax obligations on the RSU vesting. Footnotes describe additional holdings in children’s, charitable and annuity trusts where he serves as trustee or co-trustee.
Arista Networks, Inc. Senior Vice President and CFO Chantelle Yvette Breithaupt reported routine equity compensation activity involving restricted stock units that converted into common shares. She exercised derivative awards covering 12,266 shares of common stock, reflecting the vesting of restricted stock units.
To cover tax withholding obligations on this vesting, 6,144 common shares were disposed of at an indicated price of $141.58 per share, a non‑market tax-withholding disposition. Following these transactions, she directly holds 73,000 shares of Arista Networks common stock, with vesting continuing on specified quarterly vest dates.
Arista Networks director Yvonne Wassenaar reported an RSU vesting and related share sales. On May 20, 2026, she exercised 971 restricted stock units into 971 shares of Arista Networks, Inc. Common Stock. The same day, she sold 971 shares in four open-market transactions at weighted average prices reported between $139.8920 and $142.6189 per share.
The filing states these exercises and sales were made under a pre-arranged Rule 10b5-1 trading plan adopted on November 21, 2025. Following the transactions, Wassenaar directly holds 9,784 shares of Arista Networks common stock, indicating a routine liquidity event rather than a change in her overall equity stake.
Arista Networks director Mark B. Templeton increased his equity stake through RSU vesting and exercise. On May 20, 2026, he exercised restricted stock units that converted into 971 shares of Common Stock at an exercise price of $0.00 per share. Following this transaction, he held 57,872 shares of Arista Networks Common Stock directly and 75,200 shares indirectly through a trust for which his spouse serves as trustee. Each restricted stock unit represents a right to receive one share of Common Stock upon vesting under a quarterly vesting schedule that began on August 20, 2025.
Arista Networks, Inc. director Daniel Scheinman reported the settlement of restricted stock units into common shares. On May 20, 2026, 971 RSUs converted into 971 shares of Arista common stock at a stated price of $0.00 per share, reflecting equity compensation rather than an open‑market purchase or sale.
After this RSU conversion, Scheinman directly holds 158,192 shares of Arista common stock. The RSUs were granted on May 30, 2025, with one‑quarter vesting on August 20, 2025 and additional portions vesting on the first trading day on or after February 20, May 20, August 20, and November 20 in subsequent periods.
Arista Networks director Robert G. Lavender exercised restricted stock units into common shares. On May 20, 2026, he converted 807 restricted stock units into 807 shares of Arista Networks, Inc. common stock through a derivative exercise.
Following this routine vesting-related transaction, Lavender directly holds 4,069 shares of common stock. The footnotes explain that each restricted stock unit represents a contingent right to receive one share upon vesting and that these RSUs were part of a March 14, 2025 grant that vests in quarterly installments.
Arista Networks director Charles H. Giancarlo reported routine equity compensation activity involving restricted stock units (RSUs). On May 20, 2026, RSUs covering 971 shares of Arista Networks common stock were exercised at $0.00 per share, converting into the same number of common shares held directly.
After this transaction, Giancarlo holds 971 common shares directly and 208,333 common shares indirectly through a family trust for which he serves as co‑trustee. A footnote explains that each RSU represents a right to receive one share upon vesting and describes a quarterly vesting schedule beginning in 2025.
Arista Networks director Lewis Chew reported a routine equity compensation event. On May 20, 2026, he exercised 971 restricted stock units, receiving 971 shares of Arista Networks common stock at a stated price of $0.00 per share. After this vesting-related conversion, he directly holds 31,232 shares of common stock. The RSUs were part of a grant made on May 30, 2025 that vests in quarterly installments beginning August 20, 2025.