Senior insider sale

Chief Development Officer at ARISTA NETWORKS, INC. — senior position signals high conviction

$225.87M

1.41M shares

What this filing means

BECHTOLSHEIM ANDREAS plans to sell 1.41M shares of ARISTA NETWORKS, INC. valued at approximately $225.87M. Form 144 is a notice of intent to sell restricted or control securities — not a mandatory transaction. This filing provides advance warning of potential selling pressure.

BECHTOLSHEIM ANDREAS

Filed: 7/1/2026ACC: 0001958244-26-000415

InsiderBECHTOLSHEIM ANDREASCIK 1133206

→

IssuerARISTA NETWORKS, INC.CIK 1596532

DirectorOfficer10% Owner· Chief Development Officer

Since Aug 2018

1.41M

Shares to sell

$225.87M

Approx. market value

260K

Acquired (3 months)

Planned

67 completed

Securities Acquired — Last 3 Months1

Sort

Acquired from shareholder in private transaction

Cash

1/21/2011

260K

Total acquired260K

Acquisition Date	Type	Amount Acquired	Gift
1/21/2011	Acquired from shareholder in private transaction Cash	260K	—
Total		260K

Planned & Completed Dispositions68

Sort

Completed

—Completed

Units to sell

15K

Market value

$2.47M

6/15/2026

—Completed

Units to sell

10K

Market value

$1.65M

6/15/2026

—Completed

Units to sell

15K

Market value

$2.47M

6/15/2026

—Completed

Units to sell

Market value

$826.7K

6/15/2026

—Completed

Units to sell

10K

Market value

$1.65M

6/15/2026

—Completed

Units to sell

100K

Market value

$16.63M

6/15/2026

—Completed

Units to sell

Market value

$825.7K

6/15/2026

—Completed

Units to sell

20K

Market value

$3.29M

6/15/2026

—Completed

Units to sell

15K

Market value

$2.47M

6/15/2026

—Completed

Units to sell

10K

Market value

$1.65M

6/15/2026

—Completed

Units to sell

Market value

$825.1K

6/15/2026

—Completed

Units to sell

20K

Market value

$3.37M

6/15/2026

—Completed

Units to sell

Market value

$826.0K

6/15/2026

—Completed

Units to sell

10K

Market value

$1.64M

6/15/2026

—Completed

Units to sell

15K

Market value

$2.47M

6/15/2026

—Completed

Units to sell

100K

Market value

$15.57M

6/5/2026

—Completed

Units to sell

15K

Market value

$2.40M

6/5/2026

—Completed

Units to sell

10K

Market value

$1.60M

6/5/2026

—Completed

Units to sell

10K

Market value

$1.60M

6/5/2026

—Completed

Units to sell

Market value

$800.0K

6/5/2026

—Completed

Units to sell

Market value

$800.0K

6/5/2026

—Completed

Units to sell

15K

Market value

$2.40M

6/5/2026

—Completed

Units to sell

Market value

$800.0K

6/5/2026

—Completed

Units to sell

15K

Market value

$2.40M

6/5/2026

—Completed

Units to sell

Market value

$800.0K

6/5/2026

—Completed

Units to sell

15K

Market value

$2.40M

6/5/2026

—Completed

Units to sell

10K

Market value

$1.60M

6/5/2026

—Completed

Units to sell

10K

Market value

$1.60M

6/5/2026

—Completed

Units to sell

Market value

$810.5K

6/4/2026

—Completed

Units to sell

15K

Market value

$2.43M

6/4/2026

—Completed

Units to sell

15K

Market value

$2.43M

6/4/2026

—Completed

Units to sell

20K

Market value

$3.28M

6/4/2026

—Completed

Units to sell

Market value

$810.5K

6/4/2026

—Completed

Units to sell

15K

Market value

$2.43M

6/4/2026

—Completed

Units to sell

10K

Market value

$1.62M

6/4/2026

—Completed

Units to sell

100K

Market value

$16.41M

6/4/2026

—Completed

Units to sell

15K

Market value

$2.43M

6/4/2026

—Completed

Units to sell

Market value

$810.5K

6/4/2026

—Completed

Units to sell

10K

Market value

$1.62M

6/4/2026

—Completed

Units to sell

Market value

$810.5K

6/4/2026

—Completed

Units to sell

10K

Market value

$1.62M

6/4/2026

—Completed

Units to sell

10K

Market value

$1.62M

6/4/2026

—Completed

Units to sell

Market value

$784.1K

5/26/2026

—Completed

Units to sell

10K

Market value

$1.58M

5/26/2026

—Completed

Units to sell

Market value

$783.2K

5/26/2026

—Completed

Units to sell

15K

Market value

$2.39M

5/26/2026

—Completed

Units to sell

Market value

$782.8K

5/26/2026

—Completed

Units to sell

Market value

$782.3K

5/26/2026

—Completed

Units to sell

10K

Market value

$1.58M

5/26/2026

—Completed

Units to sell

15K

Market value

$2.38M

5/26/2026

—Completed

Units to sell

15K

Market value

$2.39M

5/26/2026

—Completed

Units to sell

100K

Market value

$15.52M

5/26/2026

—Completed

Units to sell

10K

Market value

$1.57M

5/26/2026

—Completed

Units to sell

10K

Market value

$1.58M

5/26/2026

—Completed

Units to sell

15K

Market value

$2.38M

5/26/2026

—Completed

Units to sell

Market value

$760.7K

5/22/2026

—Completed

Units to sell

15K

Market value

$2.30M

5/22/2026

—Completed

Units to sell

Market value

$758.9K

5/22/2026

—Completed

Units to sell

10K

Market value

$1.52M

5/22/2026

—Completed

Units to sell

10K

Market value

$1.53M

5/22/2026

—Completed

Units to sell

Market value

$759.8K

5/22/2026

—Completed

Units to sell

100K

Market value

$15.04M

5/22/2026

—Completed

Units to sell

15K

Market value

$2.30M

5/22/2026

—Completed

Units to sell

10K

Market value

$1.53M

5/22/2026

—Completed

Units to sell

15K

Market value

$2.31M

5/22/2026

—Completed

Units to sell

10K

Market value

$1.53M

5/22/2026

—Completed

Units to sell

Market value

$761.2K

5/22/2026

Planned — Approximate Date

NYSEPlanned

Units to sell

260K

Market value

$43.32M

7/1/2026

Total

Units

1.41M

Value

$225.87M

Date	Units to Sell	Approx. Market Value	Exchange	Status
Completed
6/15/2026	15K	$2.47M	—	Completed
6/15/2026	10K	$1.65M	—	Completed
6/15/2026	15K	$2.47M	—	Completed
6/15/2026	5K	$826.7K	—	Completed
6/15/2026	10K	$1.65M	—	Completed
6/15/2026	100K	$16.63M	—	Completed
6/15/2026	5K	$825.7K	—	Completed
6/15/2026	20K	$3.29M	—	Completed
6/15/2026	15K	$2.47M	—	Completed
6/15/2026	10K	$1.65M	—	Completed
6/15/2026	5K	$825.1K	—	Completed
6/15/2026	20K	$3.37M	—	Completed
6/15/2026	5K	$826.0K	—	Completed
6/15/2026	10K	$1.64M	—	Completed
6/15/2026	15K	$2.47M	—	Completed
6/5/2026	100K	$15.57M	—	Completed
6/5/2026	15K	$2.40M	—	Completed
6/5/2026	10K	$1.60M	—	Completed
6/5/2026	10K	$1.60M	—	Completed
6/5/2026	5K	$800.0K	—	Completed
6/5/2026	5K	$800.0K	—	Completed
6/5/2026	15K	$2.40M	—	Completed
6/5/2026	5K	$800.0K	—	Completed
6/5/2026	15K	$2.40M	—	Completed
6/5/2026	5K	$800.0K	—	Completed
6/5/2026	15K	$2.40M	—	Completed
6/5/2026	10K	$1.60M	—	Completed
6/5/2026	10K	$1.60M	—	Completed
6/4/2026	5K	$810.5K	—	Completed
6/4/2026	15K	$2.43M	—	Completed
6/4/2026	15K	$2.43M	—	Completed
6/4/2026	20K	$3.28M	—	Completed
6/4/2026	5K	$810.5K	—	Completed
6/4/2026	15K	$2.43M	—	Completed
6/4/2026	10K	$1.62M	—	Completed
6/4/2026	100K	$16.41M	—	Completed
6/4/2026	15K	$2.43M	—	Completed
6/4/2026	5K	$810.5K	—	Completed
6/4/2026	10K	$1.62M	—	Completed
6/4/2026	5K	$810.5K	—	Completed
6/4/2026	10K	$1.62M	—	Completed
6/4/2026	10K	$1.62M	—	Completed
5/26/2026	5K	$784.1K	—	Completed
5/26/2026	10K	$1.58M	—	Completed
5/26/2026	5K	$783.2K	—	Completed
5/26/2026	15K	$2.39M	—	Completed
5/26/2026	5K	$782.8K	—	Completed
5/26/2026	5K	$782.3K	—	Completed
5/26/2026	10K	$1.58M	—	Completed
5/26/2026	15K	$2.38M	—	Completed
5/26/2026	15K	$2.39M	—	Completed
5/26/2026	100K	$15.52M	—	Completed
5/26/2026	10K	$1.57M	—	Completed
5/26/2026	10K	$1.58M	—	Completed
5/26/2026	15K	$2.38M	—	Completed
5/22/2026	5K	$760.7K	—	Completed
5/22/2026	15K	$2.30M	—	Completed
5/22/2026	5K	$758.9K	—	Completed
5/22/2026	10K	$1.52M	—	Completed
5/22/2026	10K	$1.53M	—	Completed
5/22/2026	5K	$759.8K	—	Completed
5/22/2026	100K	$15.04M	—	Completed
5/22/2026	15K	$2.30M	—	Completed
5/22/2026	10K	$1.53M	—	Completed
5/22/2026	15K	$2.31M	—	Completed
5/22/2026	10K	$1.53M	—	Completed
5/22/2026	5K	$761.2K	—	Completed
Planned — Approximate Date
7/1/2026	260K	$43.32M	NYSE	Planned
Total	1.41M	$225.87M