Form4insider filings, from the source

Company · CIK 0001596532 · SIC 3576 — Computer Communications Equipment · NYSE

Arista Networks, Inc. · ANET

Insider activity reported against this company. All insider holders · On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market buys & salesbuys $0 · 0sales $983.5M · 27net −$983.5M
$100k$100k$10M$10M$1B$1BbuyssalesMar 28Apr 27May 28Jun 28Jul 29Aug 28Sep 28

Reported at this company — common stock

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Sep 21, 2026 SForm 4 →Sep 23, 7:05 pm EDTKenneth DudaPresident and CTO, Director43,333$203.50$8,818,195442,400−8.92%10b5-1
Sep 21, 2026 MForm 4 →Sep 23, 7:05 pm EDTKenneth DudaPresident and CTO, Director17,333$14.15$245,19830,309—10b5-1
Sep 17, 2026 SForm 4 →Sep 21, 7:06 pm EDTAndreas Bechtolsheim10% Owner300,000$198.95$59,686,334180,543,048−0.17%10b5-1
Sep 10, 2026 JForm 4 →Sep 14, 7:05 pm EDTKenneth DudaPresident and CTO, Director114,464——81,927—
Sep 8, 2026 SForm 4 →Sep 10, 7:47 pm EDTMark B TempletonDirector5,000$197.16$985,78853,410−8.56%10b5-1
Sep 8, 2026 JForm 4 →Sep 10, 7:47 pm EDTKenneth DudaPresident and CTO, Director400,000——24,695—
Sep 1, 2026 SForm 4 →Sep 3, 6:56 pm EDTChantelle Yvette BreithauptSenior Vice President, CFO612$195.77$119,81169,921−0.87%10b5-1
Aug 28, 2026 JForm 4 →Sep 1, 6:18 pm EDTKenneth DudaPresident and CTO, Director548,140——224,695—
Aug 27, 2026 SForm 4 →Aug 31, 6:45 pm EDTAndreas Bechtolsheim10% Owner300,000$202.60$60,780,047180,843,048−0.17%10b5-1
Aug 25, 2026 SForm 4 →Aug 27, 6:21 pm EDTJayshree UllalCEO and Chairperson, Director13,809$191.79$2,648,4919,917−58.2%10b5-1
Aug 21, 2026 SForm 4 →Aug 25, 6:53 pm EDTKelly Bodnar BattlesDirector422$187.34$79,05710,194−3.98%10b5-1
Aug 20, 2026 FMForm 4 →Aug 24, 6:14 pm EDTJayshree UllalCEO and Chairperson, Director41,519$186.45$2,583,26523,726—
Aug 20, 2026 FMForm 4 →Aug 24, 6:14 pm EDTTodd NightingalePresident and COO190,415$186.45$11,847,03369,463—
Aug 20, 2026 SForm 4 →Aug 24, 6:14 pm EDTKenneth DudaPresident and CTO, Director43,333$185.42$8,034,699452,400−8.74%10b5-1
Aug 20, 2026 FMForm 4 →Aug 24, 6:14 pm EDTKenneth DudaPresident and CTO, Director63,900$96.06$3,157,893122,375—10b5-1
Aug 20, 2026 FMForm 4 →Aug 24, 6:14 pm EDTChantelle Yvette BreithauptSenior Vice President, CFO18,415$186.45$1,145,73570,533—
Aug 20, 2026 MForm 4 →Aug 24, 6:12 pm EDTYvonne WassenaarDirector538——10,322—
Aug 20, 2026 MForm 4 →Aug 24, 6:12 pm EDTMark B TempletonDirector538——58,410—
Aug 20, 2026 MForm 4 →Aug 24, 6:12 pm EDTDaniel ScheinmanDirector538——158,730—
Aug 20, 2026 MForm 4 →Aug 24, 6:12 pm EDTRobert G LavenderDirector538——4,607—
Aug 20, 2026 MForm 4 →Aug 24, 6:12 pm EDTCharles H GiancarloDirector538——1,509—
Aug 20, 2026 MForm 4 →Aug 24, 6:12 pm EDTLewis ChewDirector538——31,770—
Aug 20, 2026 MForm 4 →Aug 24, 6:11 pm EDTKelly Bodnar BattlesDirector538——10,616—
Aug 12, 2026 SForm 4 →Aug 14, 6:47 pm EDTJayshree UllalCEO and Chairperson, Director573,509$208.13$119,364,06815,988,580−3.46%10b5-1
Aug 6, 2026 SForm 4 →Aug 10, 6:43 pm EDTAndreas Bechtolsheim10% Owner411,848$192.75$79,383,281181,143,048−0.23%10b5-1
Aug 5, 2026 SForm 4 →Aug 7, 6:35 pm EDTAndreas Bechtolsheim10% Owner300,000$203.30$60,989,688181,443,048−0.17%10b5-1
Aug 5, 2026 SForm 4 →Aug 7, 6:34 pm EDTJayshree UllalCEO and Chairperson, Director767,029$201.22$154,341,08616,387,981−4.47%10b5-1
Aug 5, 2026 SForm 4 →Aug 7, 6:34 pm EDTJayshree UllalCEO and Chairperson, Director1,032$201.24$207,68029,484−3.38%10b5-1
Aug 5, 2026 SForm 4 →Aug 7, 6:34 pm EDTJayshree UllalCEO and Chairperson, Director331,434$201.22$66,690,9144,968,490−6.25%10b5-1
Aug 3, 2026 SForm 4 →Aug 5, 6:12 pm EDTCharles H GiancarloDirector8,000$181.02$1,448,180184,333−4.16%10b5-1
Jul 20, 2026 SForm 4 →Jul 22, 6:56 pm EDTKenneth DudaPresident and CTO, Director43,333$170.51$7,388,872462,400−8.57%10b5-1
Jul 20, 2026 MForm 4 →Jul 22, 6:56 pm EDTKenneth DudaPresident and CTO, Director17,333$15.28$264,79530,309—10b5-1
Jul 14, 2026 SForm 4 →Jul 16, 7:13 pm EDTAndreas Bechtolsheim10% Owner300,000$180.77$54,231,399181,743,048−0.16%10b5-1
Jul 10, 2026 SForm 4 →Jul 14, 6:55 pm EDTJayshree UllalCEO and Chairperson, Director234,578$187.18$43,907,27817,155,010−1.35%10b5-1
Jul 9, 2026 SForm 4 →Jul 13, 7:07 pm EDTJayshree UllalCEO and Chairperson, Director242,422$188.17$45,616,22017,315,812−1.38%10b5-1
Jul 2, 2026 SForm 4 →Jul 7, 7:11 pm EDTAndreas Bechtolsheim10% Owner240,000$162.67$39,040,876182,043,048−0.13%10b5-1
Jul 1, 2026 SForm 4 →Jul 6, 6:23 pm EDTAndreas Bechtolsheim10% Owner260,000$164.22$42,696,873182,283,048−0.14%10b5-1
Jul 1, 2026 SForm 4 →Jul 6, 6:22 pm EDTCharles H GiancarloDirector8,000$167.06$1,336,474192,333−3.99%10b5-1
Jun 22, 2026 SForm 4 →Jun 24, 6:50 pm EDTKenneth DudaPresident and CTO, Director43,333$171.42$7,428,233472,400−8.40%10b5-1
Jun 22, 2026 MForm 4 →Jun 24, 6:50 pm EDTKenneth DudaPresident and CTO, Director17,333$15.28$264,79530,309—10b5-1
Jun 15, 2026 SForm 4 →Jun 17, 7:12 pm EDTAndreas Bechtolsheim10% Owner260,000$165.57$43,049,018182,543,048−0.14%10b5-1
Jun 11, 2026 JForm 4 →Jun 15, 7:08 pm EDTKenneth DudaPresident and CTO, Director88,784——106,890—
Jun 10, 2026 JForm 4 →Jun 12, 7:53 pm EDTKenneth DudaPresident and CTO, Director91,750——62,498—
Jun 5, 2026 SForm 4 →Jun 9, 7:04 pm EDTAndreas Bechtolsheim10% Owner220,000$157.93$34,743,812111,848−66.3%10b5-1
Jun 4, 2026 SForm 4 →Jun 8, 7:15 pm EDTAndreas Bechtolsheim10% Owner240,000$163.06$39,135,436331,848−42.0%10b5-1
Jun 4, 2026 MForm 4 →Jun 8, 7:15 pm EDTAndreas Bechtolsheim10% Owner158,000$14.58$2,303,570571,848—10b5-1
Jun 1, 2026 SForm 4 →Jun 3, 7:16 pm EDTCharles H GiancarloDirector8,000$169.09$1,352,728200,333−3.84%10b5-1

Reported at this company — derivatives (options, RSUs, warrants)

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Sep 21, 2026 MForm 4 →Sep 23, 7:05 pm EDTKenneth DudaPresident and CTO, Director17,333——138,668—10b5-1
Aug 20, 2026 MForm 4 →Aug 24, 6:14 pm EDTJayshree UllalCEO and Chairperson, Director27,664——55,332—
Aug 20, 2026 AMForm 4 →Aug 24, 6:14 pm EDTTodd NightingalePresident and COO137,235——0—
Aug 20, 2026 MForm 4 →Aug 24, 6:14 pm EDTKenneth DudaPresident and CTO, Director52,507——3,884—10b5-1
Aug 20, 2026 MForm 4 →Aug 24, 6:14 pm EDTChantelle Yvette BreithauptSenior Vice President, CFO12,270——17,550—
Aug 20, 2026 MForm 4 →Aug 24, 6:12 pm EDTYvonne WassenaarDirector538——1,615—
Aug 20, 2026 MForm 4 →Aug 24, 6:12 pm EDTMark B TempletonDirector538——1,615—
Aug 20, 2026 MForm 4 →Aug 24, 6:12 pm EDTDaniel ScheinmanDirector538——1,615—
Aug 20, 2026 MForm 4 →Aug 24, 6:12 pm EDTRobert G LavenderDirector538——1,615—
Aug 20, 2026 MForm 4 →Aug 24, 6:12 pm EDTCharles H GiancarloDirector538——1,615—
Aug 20, 2026 MForm 4 →Aug 24, 6:12 pm EDTLewis ChewDirector538——1,615—
Aug 20, 2026 MForm 4 →Aug 24, 6:11 pm EDTKelly Bodnar BattlesDirector538——1,615—
Jul 20, 2026 MForm 4 →Jul 22, 6:56 pm EDTKenneth DudaPresident and CTO, Director17,333——13,334—10b5-1
Jun 22, 2026 MForm 4 →Jun 24, 6:50 pm EDTKenneth DudaPresident and CTO, Director17,333——30,667—10b5-1
Jun 4, 2026 MForm 4 →Jun 8, 7:15 pm EDTAndreas Bechtolsheim10% Owner158,000——0—10b5-1