Mark Stephen Smith is VP at Arista Networks, Inc. (ANET). They have made 15 open-market trades across 1 company since 2015, most recently 2026-10-01.
CIK 0001596532
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
0 open-market purchases, against 15 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| ANET | 48,410 | $8.6M |
Shares reported on the most recent Form 4, priced at the 2026-10-05 close.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| ANET | SELL · 10b5-1 | 2026-10-01 | 2026-10-05 | $204.37 | $1.0M | -10.6% | — | — |
| ANET | SELL · 10b5-1 | 2026-09-17 | 2026-09-21 | $198.95 | $59.7M | -0.0% | — | — |
| ANET | SELL · 10b5-1 | 2026-09-08 | 2026-09-10 | $197.16 | $986K | +5.7% | +8.5% | — |
| ANET | SELL · 10b5-1 | 2026-09-01 | 2026-09-03 | $195.77 | $120K | +2.7% | +7.5% | — |
| ANET | SELL | 2017-02-15 | 2017-02-17 | $100.58 | $1.0M | +0.7% | +9.8% | +20.9% |
| ANET | SELL | 2017-01-17 | 2017-01-19 | $90.04 | $652K | +3.8% | +35.5% | +47.8% |
| ANET | SELL | 2017-01-17 | 2017-01-19 | $89.77 | $373K | +3.8% | +35.5% | +47.8% |
| ANET | SELL | 2016-12-15 | 2016-12-16 | $96.96 | $970K | -0.6% | -9.4% | +30.6% |
| ANET | SELL | 2016-11-15 | 2016-11-16 | $87.86 | $439K | +8.5% | +9.9% | +14.4% |
| ANET | SELL | 2016-10-17 | 2016-10-19 | $80.65 | $403K | +3.5% | +7.4% | +7.7% |
| ANET | SELL | 2016-09-15 | 2016-10-19 | $83.89 | $419K | +3.5% | +7.4% | +7.7% |
| ANET | SELL | 2016-08-15 | 2016-08-17 | $77.40 | $387K | +2.5% | +9.3% | +12.8% |
| ANET | SELL | 2016-08-15 | 2016-08-17 | $77.40 | $387K | +2.5% | +9.3% | +12.8% |
| ANET | SELL | 2016-07-15 | 2016-07-19 | $70.04 | $700K | +0.1% | +11.0% | +13.4% |
| ANET | SELL | 2016-06-15 | 2016-06-17 | $73.09 | $365K | -12.8% | -2.4% | +15.4% |
| ANET | SELL | 2016-05-10 | 2016-05-12 | $67.65 | $338K | +9.3% | +9.2% | +11.9% |
| ANET | SELL | 2015-12-30 | 2016-01-04 | $78.21 | $180K | -16.4% | -20.8% | -19.0% |
| ANET | SELL · 10b5-1 | 2015-12-23 | 2015-12-28 | $73.15 | $84K | -17.0% | -22.0% | -24.2% |
| ANET | SELL · 10b5-1 | 2015-12-16 | 2015-12-18 | $71.27 | $82K | -17.0% | -19.7% | -25.0% |
| ANET | SELL · 10b5-1 | 2015-12-09 | 2015-12-11 | $72.19 | $83K | -17.0% | -12.8% | -21.7% |
| ANET | SELL · 10b5-1 | 2015-12-02 | 2015-12-04 | $75.12 | $86K | -17.0% | -0.8% | -14.0% |
| ANET | SELL · 10b5-1 | 2015-11-25 | 2015-11-25 | $73.81 | $85K | -17.0% | -0.8% | -15.4% |
| ANET | SELL · 10b5-1 | 2015-11-18 | 2015-11-19 | $69.20 | $80K | -17.0% | -0.8% | -23.3% |
| ANET | SELL · 10b5-1 | 2015-11-11 | 2015-11-12 | $67.85 | $78K | -17.0% | -0.8% | -31.3% |
| ANET | SELL · 10b5-1 | 2015-11-04 | 2015-11-05 | $63.01 | $72K | -17.0% | -0.8% | -20.6% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.