Insider trade

Director sold ~$579K of ANET shares in the open market

Traded Mar 17, 2026 · Filed Mar 19, 2026

~$579K
Reported value · 4,290 sh @ $134.879: 1.1M
Holds after · shares reported: +53.7%
stock since the trade · S&P 500 +13.9%, $133.07 → $204.49 on Oct 1

Why it stands out

A board member of Arista Networks sold $579K of Arista Networks shares. It was planned long ago, so it says very little.

Written from the filing's own figures. OQRO describes what was reported and never tells you what to buy or sell

View the official recordSEC Form 4 — Statement of Changes in Beneficial Ownership

All the details

Dates, kept separate

Transaction date: Mar 17, 2026
Reporting period: Not applicable
Filed with the SEC: Mar 19, 2026

DirectorIndirect holding$500K–$1MPre-arranged plan referenced

Context

Classification

open market sale

Code S — open-market or private sale

Absolute commitment

~$578,631

Shares × reported transaction price

Timing vs results

33 days after results of Feb 12, 2026, 49 days before results of May 5, 2026

Results dates are the company's own 8-K (Item 2.02). Many companies only let insiders trade in a window after results

Price at the time

Closed at $133.07 on Mar 17, 2026, 107% above its 52-week low and 18% below its high, after a 4% drop over the previous 30 trading days

52-week range $64.37 (Apr 4, 2025) to $162.03 (Oct 29, 2025), 70% of the way up, from 251 adjusted closes. 30 trading days earlier: $138.37 on Feb 2, 2026. Describes the past only, not a forecast

Planned / mechanical clue

Footnote references a pre-arranged trading plan (Rule 10b5-1)

Only flagged when a footnote says so; never inferred

After it was reported

After	Stock	S&P 500	Difference
7 days	-8.0%	-2.2%	-5.7%
30 days	+27.1%	+9.3%	+17.9%
90 days	+29.3%	+15.1%	+14.2%
180 days	+50.5%	+16.3%	+34.3%

Past results only. Not a forecast.

Source receipt

Record ID: 0001596532-26-000050
Filed / recorded: Mar 19, 2026, 11:03 PM UTC
Added to OQRO: Oct 2, 2026, 12:27 PM UTC
Parser: form4-xml-v1
Data quality: Verified: identifiers matched exactly
Issuer: Arista Networks, Inc.
Issuer CIK: 1596532
Ticker: ANET
Reporting person: Kenneth Duda
Relationship: Director, Officer
Officer title: President and CTO
Security: Common Stock
Table: Non-derivative (Table I)
Transaction date: Mar 17, 2026
Transaction code: S
Shares / units: 4,290
Price per share: $134.879
Acquired / disposed: Disposed (D)
Shares owned after: 1,096,174
Ownership form: Indirect — By Childrens' Trust
Amendment: No

Footnotes from the filing

The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into by the reporting person for the benefit of the reporting person's children on March 13, 2025.
The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $134.475 to $135.4697, inclusive. The reporting person undertakes to provide Arista Networks, Inc., any security holder of Arista Networks, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
These shares are held in a trust for the benefit of a Child of the reporting person for which the reporting person serves as co-trustee. The reporting person shares voting and investment control over the shares but disclaims beneficial ownership of the shares.

Around the same time

Director sold ~$12K of Arista Networks

Scheduled in advance6mo ago

Director sold ~$63K of Arista Networks

Scheduled in advance6mo ago

Director sold ~$93K of Arista Networks

Scheduled in advance6mo ago