Insider trade

Director sold ~$317K of ANET shares in the open market

Traded Sep 21, 2026 · Filed Sep 23, 2026

~$317K
Reported value · 1,558 sh @ $203.4866: 446K
Holds after · shares reported: -0.5%
stock since the trade · S&P 500 -1.2%, $205.42 → $204.49 on Oct 1

Why it stands out

A board member of Arista Networks sold $317K 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: Sep 21, 2026
Reporting period: Not applicable
Filed with the SEC: Sep 23, 2026

DirectorIndirect holding$100K–$500KPre-arranged plan referenced

Context

Classification

open market sale

Code S — open-market or private sale

Absolute commitment

~$317,032

Shares × reported transaction price

Timing vs results

48 days after results of Aug 4, 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 $205.42 on Sep 21, 2026, within 3% of its 52-week high, after a 9% rise over the previous 30 trading days

52-week range $116.13 (Mar 30, 2026) to $210.50 (Aug 12, 2026), 95% of the way up, from 251 adjusted closes. 30 trading days earlier: $188.67 on Aug 7, 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	-0.6%	-0.4%	-0.2%

Past results only. Not a forecast.

Source receipt

Record ID: 0001596532-26-000232
Filed / recorded: Sep 23, 2026, 11:05 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: Sep 21, 2026
Transaction code: S
Shares / units: 1,558
Price per share: $203.4866
Acquired / disposed: Disposed (D)
Shares owned after: 445,707
Ownership form: Indirect — By Foundation
Amendment: No

Footnotes from the filing

The sale of shares was effected pursuant to a Rule 10b5-1 trading plan entered into on March 11, 2026 by the reporting person's 501(c) Foundation, for which the reporting person and his spouse serve as co-trustee.
The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $203.11 to $203.99, 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 by a 501(c) Foundation for which the reporting person and his spouse serve as co-trustee.

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