SEC Form 4 · accession 0001596532-26-000232
Arista Networks, Inc. · ANET
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owner
Kenneth Duda
Officer — President and CTO · Director
Period of report
Sep 21, 2026
Accepted (ET)
Sep 23, 2026 · 7:05 pm EDT
Rule 10b5-1 plan
yes — trade under a plan
Issuer CIK
0001596532
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Common Stock | Sep 21, 2026 | M | 17,333 | $14.1463 | A | 30,309 | D | |
| Common StockF2 | Sep 21, 2026 | S | 1,480 | $201.70 | D | 28,829 | D | |
| Common StockF3 | Sep 21, 2026 | S | 7,420 | $202.6575 | D | 21,409 | D | |
| Common StockF4 | Sep 21, 2026 | S | 2,700 | $203.4866 | D | 18,709 | D | |
| Common StockF5 | Sep 21, 2026 | S | 3,533 | $204.7833 | D | 15,176 | D | |
| Common StockF6 | Sep 21, 2026 | S | 2,200 | $205.495 | D | 12,976 | D | |
| Common StockF2,F8 | Sep 21, 2026 | S | 1,366 | $201.70 | D | 1,185,552 | I | By Childrens' Trust |
| Common StockF3,F8 | Sep 21, 2026 | S | 6,849 | $202.6575 | D | 1,178,703 | I | By Childrens' Trust |
| Common StockF4,F8 | Sep 21, 2026 | S | 2,492 | $203.4866 | D | 1,176,211 | I | By Childrens' Trust |
| Common StockF5,F8 | Sep 21, 2026 | S | 3,262 | $204.7833 | D | 1,172,949 | I | By Childrens' Trust |
| Common StockF6,F8 | Sep 21, 2026 | S | 2,031 | $205.495 | D | 1,170,918 | I | By Childrens' Trust |
| Common StockF2,F10 | Sep 21, 2026 | S | 854 | $201.70 | D | 451,546 | I | By Foundation |
| Common StockF3,F10 | Sep 21, 2026 | S | 4,281 | $202.6575 | D | 447,265 | I | By Foundation |
| Common StockF4,F10 | Sep 21, 2026 | S | 1,558 | $203.4866 | D | 445,707 | I | By Foundation |
| Common StockF5,F10 | Sep 21, 2026 | S | 2,038 | $204.7833 | D | 443,669 | I | By Foundation |
| Common StockF6,F10 | Sep 21, 2026 | S | 1,269 | $205.495 | D | 442,400 | I | By Foundation |
| Common StockF11 | holding | — | — | — | 692,104 | I | By GRAT JD | |
| Common StockF12 | holding | — | — | — | 690,621 | I | By GRAT KD | |
| Common StockF13 | holding | — | — | — | 81,927 | I | by Trust |
Table II — derivative securities
| Security | Conv. / exercise price | Date | Code | Shares | A/D | Exercisable | Expires | Underlying | Underlying shares | Owned after | D/I |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Non-Qualified Stock Option (right to buy)F14 | $14.1463 | Sep 21, 2026 | M | 17,333 | D | — | Feb 7, 2029 | Common Stock | 17,333 | 138,668 | D |
Explanation of responses
- F1The exercise and/or sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person on March 11, 2026.
- F10These shares are held by a 501(c) Foundation for which the reporting person and his spouse serve as co-trustee.
- F11Reporting person's spouse is the trustee of the Jennifer Duda Annuity Trusts.
- F12Reporting person is the trustee of the Kenneth Duda Annuity Trusts.
- F13These shares are held by a family trust for which the reporting person is co-trustee.
- F141/48th of the shares subject to the option shall vest and become exercisable on December 1, 2020 and 1/48th of the shares subject to the option shall continue to vest each month thereafter.
- F2The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $201.09 to $202.08, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
- F3The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $202.10 to $203.08, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
- F4The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $203.11 to $203.99, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
- F5The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $204.20 to $205.18, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
- F6The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $205.20 to $205.95, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
- F7The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person for the benefit of the reporting person's children on March 11, 2026.
- F8These shares are held in a trust for the benefit of a Child of the reporting person for which the reporting person serves as co-trustee. The reporting person shares voting and investment control over the shares but disclaims beneficial ownership of the shares.
- F9The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into on March 11, 2026 by the reporting person's 501(c) Foundation, for which the reporting person and his spouse serve as co-trustee.