Form 4 for ANET Arista Networks
Accepted 2026-08-24 18:14:45 ET · period of report 2026-08-20 · accession 0001596532-26-000211 · SEC index · Original document
Summary rows
Aggregated the way they appear in lists: one row per insider, transaction code and security table.
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| DM | 2026-08-24 18:14 | 2026-08-20 | ANET | Nightingale Todd | Pres, COO | M - OptEx | $0.00 | +126.9K | 133.0K | +2,070% | $0 |
| D | 2026-08-24 18:14 | 2026-08-20 | ANET | Nightingale Todd | Pres, COO | F - Tax | $186.45 | -63.5K | 69.5K | -48% | -$11.85M |
| DM | 2026-08-24 18:14 | 2026-08-20 | ANET | Nightingale Todd | Pres, COO | M - OptEx | $0.00 | -126.9K | 0 | -100% | $0 |
| D | 2026-08-24 18:14 | 2026-08-20 | ANET | Nightingale Todd | Pres, COO | A - Grant | $0.00 | +10.4K | 10.4K | New | $0 |
Purchase Sale Sale after option exercise All abbreviations
Every reported transaction
| # | Table | Security | Date | Code | A/D | Shares | Price | Owned after | Own | Exercise / expiry | Underlying | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Common | Common Stock | 2026-08-20 | M | A | 116,515 | $0.00 | 122,643 | D | — | — | (F1) Each restricted stock unit represents a contingent right to receive one share of Arista Networks, Inc. Common Stock upon vesting. |
| 2 | Common | Common Stock | 2026-08-20 | M | A | 10,360 | $0.00 | 133,003 | D | — | — | (F1) Each restricted stock unit represents a contingent right to receive one share of Arista Networks, Inc. Common Stock upon vesting. |
| 3 | Common | Common Stock | 2026-08-20 | F | D | 63,540 | $186.45 | 69,463 | D | — | — | (F2) Represents shares withheld to satisfy tax withholding obligations on the vesting of restricted stock units. |
| 4 | Derivative | Restricted Stock Unit-1 | 2026-08-20 | M | D | 116,515 | $0.00 | 349,545 | D | $0.00 · — to — | 116,515 Common Stock | (F1) Each restricted stock unit represents a contingent right to receive one share of Arista Networks, Inc. Common Stock upon vesting. (F3) Twenty five percent (25%) of the restricted stock units awarded will vest on August 20, 2026 and will continue to vest at a rate of six and one-quarter percent (6.25%) each quarter on each quarterly vest date thereafter. A quarterly vest date is the first market trading day on or after February 20, May 20, August 20 or November 20 of each year. (F3) Twenty five percent (25%) of the restricted stock units awarded will vest on August 20, 2026 and will continue to vest at a rate of six and one-quarter percent (6.25%) each quarter on each quarterly vest date thereafter. A quarterly vest date is the first market trading day on or after February 20, May 20, August 20 or November 20 of each year. |
| 5 | Derivative | Restricted Stock Unit-3 | 2026-08-20 | A | A | 10,360 | $0.00 | 10,360 | D | $0.00 · — to — | 10,360 Common Stock | (F1) Each restricted stock unit represents a contingent right to receive one share of Arista Networks, Inc. Common Stock upon vesting. (F4) This performance stock award was granted in the second quarter of 2025 and was earned based on attainment of certain performance conditions. The award vested on February 20, 2026. (F4) This performance stock award was granted in the second quarter of 2025 and was earned based on attainment of certain performance conditions. The award vested on February 20, 2026. |
| 6 | Derivative | Restricted Stock Unit-3 | 2026-08-20 | M | D | 10,360 | $0.00 | 0 | D | $0.00 · — to — | 10,360 Common Stock | (F1) Each restricted stock unit represents a contingent right to receive one share of Arista Networks, Inc. Common Stock upon vesting. (F4) This performance stock award was granted in the second quarter of 2025 and was earned based on attainment of certain performance conditions. The award vested on February 20, 2026. (F4) This performance stock award was granted in the second quarter of 2025 and was earned based on attainment of certain performance conditions. The award vested on February 20, 2026. |