Arista Networks, Inc. (ANET) has 14 known insider and institutional holders on record. The largest holder is Nightingale Todd with 466,060 shares. Other notable holders include Giancarlo Charles H and Breithaupt Chantelle Yvette.
Over the last 12 months, insiders have made 107 transactions in ANET stock — 15 buys (valued at RSU Award) and 45 sells (valued at $38.8M). Insider selling has exceeded buying during this period.
ANET Insider Ownership
Top Holder
Nightingale Todd
466,060 shares
Buys (12 mo)
15
$0.00 value
Sells (12 mo)
45
$38.8M value
12-Month Transaction Activity
Top Insider Holders
| # |
Name |
Role |
Shares Owned |
Last Filed |
Relative Size |
| 1 |
Nightingale Todd |
President and COO |
466,060 |
2025-07-15 |
|
| 2 |
Giancarlo Charles H |
Director |
216,333 |
2026-04-03 |
|
| 3 |
Breithaupt Chantelle Yvette |
Senior Vice President, CFO |
19,170 |
2026-02-17 |
|
| 4 |
Mccool John F |
Chief Platform Officer |
17,433 |
2025-02-26 |
|
| 5 |
Taxay Marc |
SVP and General Counsel |
14,580 |
2025-02-18 |
|
| 6 |
Duda Kenneth |
President and CTO |
12,976 |
2026-03-19 |
|
| 7 |
Wassenaar Yvonne |
Director |
11,179 |
2026-03-18 |
|
| 8 |
Ullal Jayshree |
CEO and Chairperson |
9,917 |
2025-11-28 |
|
| 9 |
Battles Kelly Bodnar |
Director |
9,529 |
2026-02-25 |
|
| 10 |
Sadana Anshul |
SVP, Chief Operating Officer |
2,833 |
2024-05-22 |
|
| 11 |
Scheinman Daniel |
Director |
971 |
2026-02-24 |
|
| 12 |
Templeton Mark B |
Director |
971 |
2026-02-24 |
|
| 13 |
Chew Lewis |
Director |
971 |
2026-02-24 |
|
| 14 |
Lavender Robert G |
Director |
807 |
2026-02-24 |
|
Recent Transactions (last 12 months)
| Date |
Name |
Role |
Type |
Shares |
Price |
Value |
| 2026-04-01 |
Giancarlo Charles H |
Director |
Informative Sell |
400 |
$127.00 |
$50.8K |
| 2026-03-17 |
Duda Kenneth |
President and CTO |
Informative Sell |
2,013 |
$135.97 |
$273.71K |
| 2026-03-16 |
Wassenaar Yvonne |
Director |
Informative Sell |
539 |
$135.54 |
$73.06K |
| 2026-03-11 |
Duda Kenneth |
President and CTO |
Other (Buy) |
111,628 |
- |
- |
| 2026-03-02 |
Giancarlo Charles H |
Director |
Informative Sell |
1,300 |
$129.95 |
$168.93K |
| 2026-02-25 |
Wassenaar Yvonne |
Director |
Informative Sell |
504 |
$133.35 |
$67.21K |
| 2026-02-23 |
Battles Kelly Bodnar |
Director |
Informative Sell |
10 |
$131.46 |
$1.31K |
| 2026-02-20 |
Lavender Robert G |
Director |
Option Exercise (Sell) |
808 |
- |
- |
| 2026-02-20 |
Nightingale Todd |
President and COO |
Option Exercise (Sell) |
10,360 |
- |
- |
| 2026-02-20 |
Breithaupt Chantelle Yvette |
Senior Vice President, CFO |
Option Exercise (Sell) |
14,400 |
- |
- |
| 2026-02-20 |
Battles Kelly Bodnar |
Director |
Option Exercise (Sell) |
971 |
- |
- |
| 2026-02-20 |
Wassenaar Yvonne |
Director |
Option Exercise (Sell) |
971 |
- |
- |
| 2026-02-20 |
Ullal Jayshree |
CEO and Chairperson |
Option Exercise (Sell) |
41,224 |
- |
- |
| 2026-02-20 |
Duda Kenneth |
President and CTO |
Option Exercise (Sell) |
14,400 |
- |
- |
| 2026-02-20 |
Scheinman Daniel |
Director |
Option Exercise (Sell) |
971 |
- |
- |
| 2026-02-20 |
Giancarlo Charles H |
Director |
Option Exercise (Sell) |
971 |
- |
- |
| 2026-02-20 |
Chew Lewis |
Director |
Option Exercise (Sell) |
971 |
- |
- |
| 2026-02-20 |
Templeton Mark B |
Director |
Option Exercise (Sell) |
971 |
- |
- |
| 2026-02-17 |
Duda Kenneth |
President and CTO |
Informative Sell |
55 |
$144.74 |
$7.96K |
| 2026-02-13 |
Breithaupt Chantelle Yvette |
Senior Vice President, CFO |
RSU Award |
19,170 |
- |
- |
| 2026-02-02 |
Giancarlo Charles H |
Director |
Informative Sell |
600 |
$141.94 |
$85.16K |
| 2026-01-20 |
Duda Kenneth |
President and CTO |
Option Exercise (Sell) |
30,000 |
$3.52 |
$105.45K |
| 2026-01-02 |
Giancarlo Charles H |
Director |
Informative Sell |
200 |
$135.71 |
$27.14K |
| 2025-12-17 |
Duda Kenneth |
President and CTO |
Informative Sell |
268 |
$126.44 |
$33.89K |
| 2025-12-03 |
Duda Kenneth |
President and CTO |
Other (Sell) |
150,000 |
- |
- |
