Form 4: Arista Networks COO Receives Stock Grant
Insider Transaction (Form 4)
Todd Nightingale, President and COO of Arista Networks, Inc., reported multiple transactions in common stock on August 20, 2026.
Summary
- Option exercise/conversion: acquired 116,515 Common Stock on August 20, 2026; holds 122,643 after (Direct).
- Option exercise/conversion: acquired 10,360 Common Stock on August 20, 2026; holds 133,003 after (Direct).
- Tax/exercise-price withholding: disposed of 63,540 Common Stock at $186.45 ($11,847,033) on August 20, 2026; holds 69,463 after (Direct).
- Option exercise/conversion: disposed of 116,515 Restricted Stock Unit-1 on August 20, 2026; holds 349,545 after (Direct).
- Grant/award: acquired 10,360 Restricted Stock Unit-3 on August 20, 2026; holds 10,360 after (Direct).
- Option exercise/conversion: disposed of 10,360 Restricted Stock Unit-3 on August 20, 2026 (Direct).
Sentiment
Score: 5
Explanation: StockSavvy.ai views this as routine: the reported changes are grants, option exercises, tax withholding or similar administrative transactions, which carry limited directional signal.
Insider Transactions
Todd Nightingale — Officer (President and COO)
| Date | Transaction | Security | Shares | Price | Value | Held After |
|---|---|---|---|---|---|---|
| 2026-08-20 | Option exercise/conversion | Common Stock | 116,515 | — | — | 122,643 |
| 2026-08-20 | Option exercise/conversion | Common Stock | 10,360 | — | — | 133,003 |
| 2026-08-20 | Tax/exercise-price withholding | Common Stock | 63,540 | $186 | $11.8M | 69,463 |
| 2026-08-20 | Option exercise/conversion | Restricted Stock Unit-1 | 116,515 | — | — | 349,545 |
| 2026-08-20 | Grant/award | Restricted Stock Unit-3 | 10,360 | — | — | 10,360 |
| 2026-08-20 | Option exercise/conversion | Restricted Stock Unit-3 | 10,360 | — | — | 0 |
Key Dates
| Date | Description |
|---|---|
| 2026-08-20 | Option exercise/conversion (116,515 shares) |
| 2026-08-20 | Option exercise/conversion (10,360 shares) |
| 2026-08-20 | Tax/exercise-price withholding (63,540 shares) |
| 2026-08-20 | Option exercise/conversion (116,515 shares) |
| 2026-08-20 | Grant/award (10,360 shares) |
| 2026-08-20 | Option exercise/conversion (10,360 shares) |
Keywords
insider transaction, Form 4, ANET, Arista Networks, Inc., neutral, Todd Nightingale
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