Arista Networks, Inc.
A maker of cloud and AI networking gear, Arista builds the Ethernet switches, EOS operating system, and CloudVision management platform that keep data centers, campuses, and wide-area networks running. It was founded in 2004 by Andy Bechtolsheim (a Sun Microsystems co-founder), David Cheriton, and Kenneth Duda, and launched in 2008 under the name Arista — a nod to the Greek word "aristos," meaning "best."
Granted 1.14M · Sold 5.44M
Granted 1.56M · Sold 15.47M
Sold 6.79M
Sold 675.1K
Granted 2.41M · Sold 4.89M
Granted 24.7K · Sold 335.0K
Granted 54.7K · Sold 37.8K
Granted 20.8K · Sold 102.9K
Granted 18.6K
Granted 693.6K · Sold 934.9K
Granted 159.3K · Sold 11.3K
Granted 137.2K
Granted 336.0K · Sold 227.6K
Granted 12.1K
Granted 35.6K · Sold 26.0K
Granted 10.3K · Sold 6.9K
Granted 13.3K · Sold 12.1K
Granted 266.4K · Sold 161.6K
Granted 4.6K
Granted 44.7K · Sold 39.9K
Granted 3.0K · Sold 1.2K
Granted 95.0K · Sold 95.0K
Granted 454.7K · Sold 311.9K
Granted 16.0K · Sold 16.0K
| Insider | Stake change | Holds now | Granted / vested | Bought | Sold |
|---|---|---|---|---|---|
| Bechtolsheim Andreas10% owner · 504 transactions | — | 182.69M | 1.14M | — | 5.44M |
| Ullal JayshreeCEO and Chairperson, Director · 1769 transactions | — | 25.87M | 1.56M | — | 15.47M |
| Bechtolsheim Andreas +1 co-filerChief Development Officer, Director, 10% owner, 10% owner · 2 transactions | — | 12.31Mas of Jun 2014 | — | — | — |
| 2010 David R Cheriton Irrevocable Trust dtd July 27, 201010% owner · 12 transactions | — | 7.44Mas of May 2016 | — | — | 6.79M |
| 2010 David R Cheriton Irrevocable Trust dtd July 28, 201010% owner · 4 transactions | — | 6.76Mas of May 2016 | — | — | 675.1K |
| Duda KennethPresident and CTO, Director · 1920 transactions | — | 3.62M | 2.41M | — | 4.89M |
| Giancarlo Charles HDirector · 388 transactions | — | 225.1K | 24.7K | — | 335.0K |
| Scheinman DanielDirector · 73 transactions | — | 158.7K | 54.7K | — | 37.8K |
| Smith Mark StephenFormer Officer · 81 transactions | — | 149.4Kas of Feb 2017 | 20.8K | — | 102.9K |
| Templeton Mark BDirector · 39 transactions | — | 133.6K | 18.6K | — | — |
| Sadana AnshulSVP, Chief Operating Officer · 610 transactions | — | 72.2Kas of May 2024 | 693.6K | — | 934.9K |
| Breithaupt Chantelle YvetteSenior Vice President, CFO · 22 transactions | — | 70.5K | 159.3K | — | 11.3K |
| Nightingale ToddPresident and COO · 5 transactions | — | 69.5K | 137.2K | — | — |
| Brennan Ita MSenior Vice President, CFO · 300 transactions | — | 33.1Kas of Dec 2023 | 336.0K | — | 227.6K |
| Chew LewisDirector · 21 transactions | — | 31.8K | 12.1K | — | — |
| Theodosopoulos NikosDirector · 61 transactions | — | 26.0Kas of May 2023 | 35.6K | — | 26.0K |
| Wassenaar YvonneDirector · 66 transactions | — | 10.3K | 10.3K | — | 6.9K |
| Battles Kelly BodnarDirector · 153 transactions | — | 10.2K | 13.3K | — | 12.1K |
| McCool John FChief Platform Officer · 422 transactions | — | 6.9Kas of Feb 2025 | 266.4K | — | 161.6K |
| Lavender Robert GDirector · 6 transactions | — | 4.6K | 4.6K | — | — |
| Mather AnnDirector · 94 transactions | — | 4.1Kas of May 2022 | 44.7K | — | 39.9K |
| Rivelo Manuel FelixSVP, Chief Customer Officer · 9 transactions | — | 1.6Kas of Nov 2019 | 3.0K | — | 1.2K |
| Brannon KelynChief Financial Officer · 18 transactions | — | 483as of Apr 2015 | 95.0K | — | 95.0K |
| Taxay MarcSVP and General Counsel · 899 transactions | — | 0as of Mar 2025 | 454.7K | — | 311.9K |
| Stoll Marc FDirector · 2 transactions | — | 0as of May 2017 | 16.0K | — | 16.0K |
Select a row to see that insider’s individual transactions. Sum of the holdings confirmed in the 12 months before this insider's last filing. A Form 4 reports a holding per line — held directly, or through a named trust, partnership or foundation, and in each share class separately — never a person’s total. Lines not restated in that time are left out and shown apart: an active filer restates what they still hold, so a line they did not restate is more often an entity since renamed, whose shares a successor line reports too. An amber marker means some were left out.
Net open-market activity over all recorded history: -35.58M shares. Grants, option exercises and tax withholding are excluded — they are compensation mechanics, not decisions to buy or sell.