144 0001133206 XXXXXXXX LIVE 0001596532 Arista Networks, Inc. 001-36468 5453 Great America Parkway Santa Clara CA 95054 1-408-547-5500 Andreas Bechtolsheim 10% Stockholder Common Stock Goldman Sachs & Co. LLC 200 West Street New York NY 10282 300000 60327000 1261224648 08/27/2026 NYSE Common Stock 01/21/2011 Acquired from shareholder in private transaction Andreas Bechtolsheim N 300000 01/21/2011 Cash N Andreas Bechtolsheim 5453 Great America Parkway Santa Clara CA 95054 Common Stock 06/04/2026 100000 16405030 Andreas Bechtolsheim 5453 Great America Parkway Santa Clara CA 95054 Common Stock 06/04/2026 20000 3279950 Andreas Bechtolsheim 5453 Great America Parkway Santa Clara CA 95054 Common Stock 06/04/2026 10000 1620900 Andreas Bechtolsheim 5453 Great America Parkway Santa Clara CA 95054 Common Stock 06/04/2026 15000 2431474.5 Andreas Bechtolsheim 5453 Great America Parkway Santa Clara CA 95054 Common Stock 06/04/2026 10000 1620900 Andreas Bechtolsheim 5453 Great America Parkway Santa Clara CA 95054 Common Stock 06/04/2026 15000 2431515 Andreas Bechtolsheim 5453 Great America Parkway Santa Clara CA 95054 Common Stock 06/04/2026 5000 810450 Andreas Bechtolsheim 5453 Great America Parkway Santa Clara CA 95054 Common Stock 06/04/2026 10000 1620900 Andreas Bechtolsheim 5453 Great America Parkway Santa Clara CA 95054 Common Stock 06/04/2026 15000 2431192.5 Andreas Bechtolsheim 5453 Great America Parkway Santa Clara CA 95054 Common Stock 06/04/2026 15000 2430879 Andreas Bechtolsheim 5453 Great America Parkway Santa Clara CA 95054 Common Stock 06/04/2026 5000 810450 Andreas Bechtolsheim 5453 Great America Parkway Santa Clara CA 95054 Common Stock 06/04/2026 10000 1620900 Andreas Bechtolsheim 5453 Great America Parkway Santa Clara CA 95054 Common Stock 06/04/2026 5000 810450 Andreas Bechtolsheim 5453 Great America Parkway Santa Clara CA 95054 Common Stock 06/04/2026 5000 810450 Andreas Bechtolsheim 5453 Great America Parkway Santa Clara CA 95054 Common Stock 06/05/2026 100000 15566860 Andreas Bechtolsheim 5453 Great America Parkway Santa Clara CA 95054 Common Stock 06/05/2026 15000 2397078 Andreas Bechtolsheim 5453 Great America Parkway Santa Clara CA 95054 Common Stock 06/05/2026 15000 2397331.5 Andreas Bechtolsheim 5453 Great America Parkway Santa Clara CA 95054 Common Stock 06/05/2026 15000 2397010.5 Andreas Bechtolsheim 5453 Great America Parkway Santa Clara CA 95054 Common Stock 06/05/2026 15000 2397066 Andreas Bechtolsheim 5453 Great America Parkway Santa Clara CA 95054 Common Stock 06/05/2026 10000 1596957 Andreas Bechtolsheim 5453 Great America Parkway Santa Clara CA 95054 Common Stock 06/05/2026 10000 1597016 Andreas Bechtolsheim 5453 Great America Parkway Santa Clara CA 95054 Common Stock 06/05/2026 10000 1597292 Andreas Bechtolsheim 5453 Great America Parkway Santa Clara CA 95054 Common Stock 06/05/2026 5000 800000 Andreas Bechtolsheim 5453 Great America Parkway Santa Clara CA 95054 Common Stock 06/05/2026 5000 800000 Andreas Bechtolsheim 5453 Great America Parkway Santa Clara CA 95054 Common Stock 06/05/2026 5000 800000 Andreas Bechtolsheim 5453 Great America Parkway Santa Clara CA 95054 Common Stock 06/05/2026 10000 1597202 Andreas Bechtolsheim 5453 Great America Parkway Santa Clara CA 95054 Common Stock 06/05/2026 5000 800000 Andreas Bechtolsheim 5453 Great America Parkway Santa Clara CA 95054 Common Stock 08/06/2026 100000 19305780 Andreas Bechtolsheim 5453 Great America Parkway Santa Clara CA 95054 Common Stock 08/06/2026 5000 960950 Andreas Bechtolsheim 5453 Great America Parkway Santa Clara CA 95054 Common Stock 08/06/2026 5000 960950 Andreas Bechtolsheim 5453 Great America Parkway Santa Clara CA 95054 Common Stock 08/06/2026 1848 355167.12 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 05/26/2026 10000 1584240 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 05/26/2026 10000 1570402 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 05/26/2026 10000 1582700 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 05/26/2026 10000 1578083 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 05/26/2026 100000 15515720 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 05/26/2026 15000 2383425 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 05/26/2026 15000 2388136.5 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 05/26/2026 15000 2379579 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 05/26/2026 5000 782825 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 05/26/2026 5000 783192 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 05/26/2026 15000 2394196.5 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 05/26/2026 5000 782271 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 05/26/2026 5000 784087.5 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 06/15/2026 20000 3373296 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 06/15/2026 15000 2486622 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 06/15/2026 15000 2493324 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 06/15/2026 15000 2509353 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 06/15/2026 15000 2502357 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 06/15/2026 20000 3357744 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 06/15/2026 10000 1655034 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 06/15/2026 10000 1650953 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 06/15/2026 5000 824118.5 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 06/15/2026 5000 824517.5 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 06/15/2026 5000 824978.5 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 06/15/2026 10000 1653476 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 06/15/2026 10000 1651866 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 06/15/2026 100000 16417690 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 06/15/2026 5000 823685.5 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 07/01/2026 5000 813940 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 07/01/2026 15000 2505687 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 07/01/2026 15000 2514288 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 07/01/2026 20000 3363990 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 07/01/2026 10000 1657347 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 07/01/2026 15000 2496561 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 07/01/2026 15000 2519364 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 07/01/2026 100000 16078190 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 07/01/2026 5000 815527.5 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 07/01/2026 5000 815304 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 07/01/2026 10000 1633000 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 07/01/2026 5000 815693 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 07/01/2026 10000 1637834 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 07/01/2026 10000 1647532 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 07/01/2026 20000 3382612 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 07/02/2026 15000 2457757.5 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 07/02/2026 100000 16060130 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 07/02/2026 10000 1631904 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 07/02/2026 10000 1633974 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 07/02/2026 15000 2472813 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 07/02/2026 5000 815403.5 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 07/02/2026 5000 815325.5 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 07/02/2026 5000 815594.5 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 07/02/2026 20000 3323686 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 07/02/2026 10000 1635541 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 07/02/2026 15000 2462359.5 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 07/02/2026 15000 2468469 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 07/02/2026 5000 814989 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 07/02/2026 10000 1632929 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 07/14/2026 5000 901588 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 07/14/2026 20000 3654636 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 07/14/2026 10000 1810090 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 07/14/2026 15000 2732689.5 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 07/14/2026 15000 2724037.5 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 07/14/2026 20000 3691046 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 07/14/2026 5000 900013.5 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 07/14/2026 10000 1812003 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 07/14/2026 20000 3661714 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 07/14/2026 5000 899714.5 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 07/14/2026 5000 900945 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 07/14/2026 100000 17784350 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 07/14/2026 10000 1814068 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 07/14/2026 15000 2728368 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 07/14/2026 20000 3672682 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 07/14/2026 15000 2737551 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 07/14/2026 10000 1805898 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 08/05/2026 5000 1015779.5 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 08/05/2026 10000 2035749 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 08/05/2026 10000 2040880 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 08/05/2026 10000 2034312 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 08/05/2026 5000 1015149.5 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 08/05/2026 10000 2038257 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 08/05/2026 5000 1016466 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 08/05/2026 15000 3064365 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 08/05/2026 20000 4150168 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 08/05/2026 20000 4134072 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 08/05/2026 20000 4167544 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 08/05/2026 15000 3068212.5 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 08/05/2026 20000 4153888 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 08/05/2026 15000 3089244 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 08/05/2026 5000 1014749.5 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 08/05/2026 15000 3076645.5 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 08/05/2026 100000 19874200 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 08/06/2026 20000 3871814 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 08/06/2026 20000 3865208 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 08/06/2026 15000 2893495.5 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 08/06/2026 20000 3861768 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 08/06/2026 15000 2894773.5 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 08/06/2026 100000 19174300 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 08/06/2026 5000 961559 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 08/06/2026 15000 2892289.5 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 08/06/2026 10000 1924875 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 08/06/2026 10000 1925549 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 08/06/2026 5000 962126 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 08/06/2026 10000 1926048 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 08/06/2026 15000 2890728 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 08/06/2026 5000 961712 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 08/06/2026 20000 3905900 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 08/06/2026 5000 961863.5 The Bechtolsheim Family Trust 5453 Great America Parkway Santa Clara CA 95054 Common Stock 08/06/2026 10000 1926418 The sales of shares set forth herein are made in connection with a selling plan dated 2/20/2026 that is intended to comply with Rule 10b5-1 (c). All shares to be sold out of the Bechtolsheim Family Trust. 08/27/2026 02/20/2026 Goldman Sachs & Co. LLC on behalf of Andreas Bechtolsheim