Arista Networks, Inc. — Insider Transactions
Form 4 filings by directors, officers, and 10%+ shareholders
SEC rules require corporate insiders — including directors, executive officers, and any shareholder owning more than 10% of a company's shares — to report changes in their ownership within two business days of a transaction. These disclosures are filed as Form 4. Open-market purchases (code P) are generally considered the most meaningful signal, as insiders are spending their own money.
| Insider | Title | Type | Shares | Price | Value | Owns After | Date |
|---|---|---|---|---|---|---|---|
| Duda Kenneth | President and CTO | Sale | 268 | $126.44 | $33,886 | 12,976 | Dec 17, 2025 |
| Duda Kenneth | President and CTO | Other | 75,000 | — | — | 757,961 | Dec 3, 2025 |
| Giancarlo Charles H | — | Sale | 564 | $126.93 | $71,589 | 33,220 | Dec 1, 2025 |
| Ullal Jayshree | CEO and Chairperson | Sale | 800 | $125.62 | $100,496 | 9,917 | Nov 25, 2025 |
| Duda Kenneth | President and CTO | Other | 79,074 | — | — | 682,961 | Nov 25, 2025 |
| Battles Kelly Bodnar | — | Sale | 264 | $116.97 | $30,880 | 9,064 | Nov 21, 2025 |
| Ullal Jayshree | CEO and Chairperson | Option Exercise | 27,660 | — | — | 58,177 | Nov 20, 2025 |
| Duda Kenneth | President and CTO | Option Exercise | 4,148 | — | — | 23,047 | Nov 20, 2025 |
| Breithaupt Chantelle Yvette | Senior Vice President, CFO | Option Exercise | 10,916 | — | — | 52,852 | Nov 20, 2025 |
| Wassenaar Yvonne | — | Option Exercise | 971 | — | — | 13,418 | Nov 20, 2025 |
| TEMPLETON MARK B | — | Option Exercise | 971 | — | — | 55,930 | Nov 20, 2025 |
| Scheinman Daniel | — | Option Exercise | 971 | — | — | 156,250 | Nov 20, 2025 |
| Lavender Robert G | — | Option Exercise | 807 | — | — | 2,454 | Nov 20, 2025 |
| Giancarlo Charles H | — | Option Exercise | 971 | — | — | 221,578 | Nov 20, 2025 |
| CHEW LEWIS | — | Option Exercise | 971 | — | — | 29,290 | Nov 20, 2025 |
| Battles Kelly Bodnar | — | Option Exercise | 971 | — | — | 9,402 | Nov 20, 2025 |
| Duda Kenneth | President and CTO | Sale | 5,307 | $125.90 | $668,151 | 37,669 | Nov 17, 2025 |
| Ullal Jayshree | CEO and Chairperson | Gift | 935,000 | — | — | 18,312,010 | Nov 14, 2025 |
| Giancarlo Charles H | — | Sale | 5,232 | $157.33 | $823,151 | 34,384 | Nov 3, 2025 |
| Duda Kenneth | President and CTO | Sale | 4,067 | $143.72 | $584,509 | 12,976 | Oct 17, 2025 |
| Giancarlo Charles H | — | Sale | 2,350 | $148.68 | $349,398 | 43,934 | Oct 1, 2025 |
| Giancarlo Charles H | — | Sale | 10,737 | $147.34 | $1,581,990 | 39,263 | Sep 19, 2025 |
| Duda Kenneth | President and CTO | Sale | 3,172 | $143.35 | $454,706 | 1,191,168 | Sep 17, 2025 |
| Ullal Jayshree | CEO and Chairperson | Sale | 3,440 | $145.22 | $499,557 | 5,551,933 | Sep 10, 2025 |
| Ullal Jayshree | CEO and Chairperson | Sale | 780 | $144.04 | $112,351 | 5,555,373 | Sep 8, 2025 |
| Duda Kenneth | President and CTO | Other | 75,000 | — | — | 762,035 | Sep 8, 2025 |
| Ullal Jayshree | CEO and Chairperson | Sale | 173,204 | $143.21 | $24,804,545 | 20,335,778 | Sep 5, 2025 |
| Duda Kenneth | CTO and SVP Software Eng. | Other | 125,930 | — | — | 159,303 | Aug 29, 2025 |
| Ullal Jayshree | CEO and Chairperson | Sale | 2,568 | $131.04 | $336,511 | 31,389 | Aug 25, 2025 |
| Ullal Jayshree | CEO and Chairperson | Option Exercise | 20,592 | — | — | 30,509 | Aug 20, 2025 |
| Duda Kenneth | CTO and SVP Software Eng. | Option Exercise | 5,712 | — | — | 31,327 | Aug 20, 2025 |
| Breithaupt Chantelle Yvette | Senior Vice President, CFO | Option Exercise | 10,920 | — | — | 47,391 | Aug 20, 2025 |
| Wassenaar Yvonne | — | Option Exercise | 971 | — | — | 12,447 | Aug 20, 2025 |
| TEMPLETON MARK B | — | Option Exercise | 971 | — | — | 54,959 | Aug 20, 2025 |
| Scheinman Daniel | — | Option Exercise | 971 | — | — | 155,279 | Aug 20, 2025 |
| Lavender Robert G | — | Option Exercise | 808 | — | — | 1,647 | Aug 20, 2025 |
| Giancarlo Charles H | — | Option Exercise | 971 | — | — | 220,607 | Aug 20, 2025 |
| CHEW LEWIS | — | Option Exercise | 971 | — | — | 28,319 | Aug 20, 2025 |
| Battles Kelly Bodnar | — | Option Exercise | 971 | — | — | 8,431 | Aug 20, 2025 |
| Wassenaar Yvonne | — | Gift | 1,000 | — | — | 11,476 | Aug 19, 2025 |
| Duda Kenneth | CTO and SVP Software Eng. | Sale | 7,843 | $136.47 | $1,070,334 | 1,211,543 | Aug 18, 2025 |
| Ullal Jayshree | CEO and Chairperson | Sale | 26,625 | $139.67 | $3,718,714 | 5,623,721 | Aug 8, 2025 |
| Ullal Jayshree | CEO and Chairperson | Sale | 54,668 | $140.61 | $7,686,867 | 20,648,711 | Aug 7, 2025 |
| Ullal Jayshree | CEO and Chairperson | Sale | 527,418 | $136.54 | $72,013,654 | 21,037,356 | Aug 6, 2025 |
| Giancarlo Charles H | — | Sale | 1,802 | $116.09 | $209,194 | 63,982 | Aug 1, 2025 |
| Ullal Jayshree | CEO and Chairperson | Sale | 4,979 | $122.60 | $610,425 | 6,060,880 | Jul 31, 2025 |
| Ullal Jayshree | CEO and Chairperson | Sale | 27 | $123.00 | $3,321 | 6,065,859 | Jul 30, 2025 |
| Ullal Jayshree | CEO and Chairperson | Sale | 345,533 | $119.06 | $41,139,159 | 23,118,191 | Jul 29, 2025 |
| Ullal Jayshree | CEO and Chairperson | Sale | 593 | $116.00 | $68,788 | 6,186,850 | Jul 28, 2025 |
| Ullal Jayshree | CEO and Chairperson | Sale | 43,946 | $115.02 | $5,054,669 | 23,845,504 | Jul 25, 2025 |